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authorDave Airlie <airlied@gmail.com>2012-09-19 05:57:58 -0400
committerDave Airlie <airlied@gmail.com>2012-09-19 05:57:58 -0400
commitf2032d413a2d47089f2b3f8fdd0e344a04de8195 (patch)
tree3a37a701eead5d1105a5a9b0cdab9808f378665d
parent09e7dcf081b1100d1cdff57fa9eb25c3a834c9d6 (diff)
parent51c1327876f35d61c8bdd81fc96e1b501c9380ee (diff)
Merge branch 'drm-lcdc' of git://linuxtv.org/pinchartl/fbdev into drm-next
Laurent writes: The SH Mobile DRM driver is now (in my opinion) ready for mainline. It requires GEM and KMS/FB helpers that have been reviewed on the list and tested. Sascha is waiting for them to reach your tree to send a pull request for another new driver. * 'drm-lcdc' of git://linuxtv.org/pinchartl/fbdev: drm: Renesas SH Mobile DRM driver drm: Add NV24 and NV42 pixel formats DRM: Add DRM KMS/FB CMA helper DRM: Add DRM GEM CMA helper drm/edid: limit printk when facing bad edid
Diffstat
-rw-r--r--drivers/gpu/drm/Kconfig17
-rw-r--r--drivers/gpu/drm/Makefile3
-rw-r--r--drivers/gpu/drm/drm_crtc.c6
-rw-r--r--drivers/gpu/drm/drm_edid.c22
-rw-r--r--drivers/gpu/drm/drm_edid_load.c6
-rw-r--r--drivers/gpu/drm/drm_fb_cma_helper.c406
-rw-r--r--drivers/gpu/drm/drm_gem_cma_helper.c251
-rw-r--r--drivers/gpu/drm/shmobile/Kconfig10
-rw-r--r--drivers/gpu/drm/shmobile/Makefile7
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_backlight.c90
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_backlight.h23
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_crtc.c763
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_crtc.h60
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_drv.c361
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_drv.h47
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_kms.c160
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_kms.h34
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_plane.c268
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_plane.h22
-rw-r--r--drivers/gpu/drm/shmobile/shmob_drm_regs.h311
-rw-r--r--include/drm/drm_crtc.h3
-rw-r--r--include/drm/drm_fb_cma_helper.h27
-rw-r--r--include/drm/drm_fourcc.h2
-rw-r--r--include/drm/drm_gem_cma_helper.h44
-rw-r--r--include/linux/platform_data/shmob_drm.h99
25 files changed, 3031 insertions, 11 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 0cbdc458011f..18321b68b880 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -54,6 +54,21 @@ config DRM_TTM
54 GPU memory types. Will be enabled automatically if a device driver 54 GPU memory types. Will be enabled automatically if a device driver
55 uses it. 55 uses it.
56 56
57config DRM_GEM_CMA_HELPER
58 bool
59 depends on DRM
60 help
61 Choose this if you need the GEM CMA helper functions
62
63config DRM_KMS_CMA_HELPER
64 bool
65 select DRM_GEM_CMA_HELPER
66 select FB_SYS_FILLRECT
67 select FB_SYS_COPYAREA
68 select FB_SYS_IMAGEBLIT
69 help
70 Choose this if you need the KMS CMA helper functions
71
57config DRM_TDFX 72config DRM_TDFX
58 tristate "3dfx Banshee/Voodoo3+" 73 tristate "3dfx Banshee/Voodoo3+"
59 depends on DRM && PCI 74 depends on DRM && PCI
@@ -193,3 +208,5 @@ source "drivers/gpu/drm/ast/Kconfig"
193source "drivers/gpu/drm/mgag200/Kconfig" 208source "drivers/gpu/drm/mgag200/Kconfig"
194 209
195source "drivers/gpu/drm/cirrus/Kconfig" 210source "drivers/gpu/drm/cirrus/Kconfig"
211
212source "drivers/gpu/drm/shmobile/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index f65f65ed0ddf..2ff5cefe9ead 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -15,11 +15,13 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \
15 drm_trace_points.o drm_global.o drm_prime.o 15 drm_trace_points.o drm_global.o drm_prime.o
16 16
17drm-$(CONFIG_COMPAT) += drm_ioc32.o 17drm-$(CONFIG_COMPAT) += drm_ioc32.o
18drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o
18 19
19drm-usb-y := drm_usb.o 20drm-usb-y := drm_usb.o
20 21
21drm_kms_helper-y := drm_fb_helper.o drm_crtc_helper.o drm_dp_i2c_helper.o 22drm_kms_helper-y := drm_fb_helper.o drm_crtc_helper.o drm_dp_i2c_helper.o
22drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o 23drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
24drm_kms_helper-$(CONFIG_DRM_KMS_CMA_HELPER) += drm_fb_cma_helper.o
23 25
24obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o 26obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
25 27
@@ -45,4 +47,5 @@ obj-$(CONFIG_DRM_EXYNOS) +=exynos/
45obj-$(CONFIG_DRM_GMA500) += gma500/ 47obj-$(CONFIG_DRM_GMA500) += gma500/
46obj-$(CONFIG_DRM_UDL) += udl/ 48obj-$(CONFIG_DRM_UDL) += udl/
47obj-$(CONFIG_DRM_AST) += ast/ 49obj-$(CONFIG_DRM_AST) += ast/
50obj-$(CONFIG_DRM_SHMOBILE) +=shmobile/
48obj-y += i2c/ 51obj-y += i2c/
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 08a7aa722d6b..28d0900d7f89 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -2169,6 +2169,8 @@ static int format_check(const struct drm_mode_fb_cmd2 *r)
2169 case DRM_FORMAT_NV21: 2169 case DRM_FORMAT_NV21:
2170 case DRM_FORMAT_NV16: 2170 case DRM_FORMAT_NV16:
2171 case DRM_FORMAT_NV61: 2171 case DRM_FORMAT_NV61:
2172 case DRM_FORMAT_NV24:
2173 case DRM_FORMAT_NV42:
2172 case DRM_FORMAT_YUV410: 2174 case DRM_FORMAT_YUV410:
2173 case DRM_FORMAT_YVU410: 2175 case DRM_FORMAT_YVU410:
2174 case DRM_FORMAT_YUV411: 2176 case DRM_FORMAT_YUV411:
@@ -3718,6 +3720,8 @@ int drm_format_num_planes(uint32_t format)
3718 case DRM_FORMAT_NV21: 3720 case DRM_FORMAT_NV21:
3719 case DRM_FORMAT_NV16: 3721 case DRM_FORMAT_NV16:
3720 case DRM_FORMAT_NV61: 3722 case DRM_FORMAT_NV61:
3723 case DRM_FORMAT_NV24:
3724 case DRM_FORMAT_NV42:
3721 return 2; 3725 return 2;
3722 default: 3726 default:
3723 return 1; 3727 return 1;
@@ -3751,6 +3755,8 @@ int drm_format_plane_cpp(uint32_t format, int plane)
3751 case DRM_FORMAT_NV21: 3755 case DRM_FORMAT_NV21:
3752 case DRM_FORMAT_NV16: 3756 case DRM_FORMAT_NV16:
3753 case DRM_FORMAT_NV61: 3757 case DRM_FORMAT_NV61:
3758 case DRM_FORMAT_NV24:
3759 case DRM_FORMAT_NV42:
3754 return plane ? 2 : 1; 3760 return plane ? 2 : 1;
3755 case DRM_FORMAT_YUV410: 3761 case DRM_FORMAT_YUV410:
3756 case DRM_FORMAT_YVU410: 3762 case DRM_FORMAT_YVU410:
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index acb489ff3630..de2a0ed8e945 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -158,7 +158,7 @@ MODULE_PARM_DESC(edid_fixup,
158 * Sanity check the EDID block (base or extension). Return 0 if the block 158 * Sanity check the EDID block (base or extension). Return 0 if the block
159 * doesn't check out, or 1 if it's valid. 159 * doesn't check out, or 1 if it's valid.
160 */ 160 */
161bool drm_edid_block_valid(u8 *raw_edid, int block) 161bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
162{ 162{
163 int i; 163 int i;
164 u8 csum = 0; 164 u8 csum = 0;
@@ -181,7 +181,9 @@ bool drm_edid_block_valid(u8 *raw_edid, int block)
181 for (i = 0; i < EDID_LENGTH; i++) 181 for (i = 0; i < EDID_LENGTH; i++)
182 csum += raw_edid[i]; 182 csum += raw_edid[i];
183 if (csum) { 183 if (csum) {
184 DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum); 184 if (print_bad_edid) {
185 DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
186 }
185 187
186 /* allow CEA to slide through, switches mangle this */ 188 /* allow CEA to slide through, switches mangle this */
187 if (raw_edid[0] != 0x02) 189 if (raw_edid[0] != 0x02)
@@ -207,7 +209,7 @@ bool drm_edid_block_valid(u8 *raw_edid, int block)
207 return 1; 209 return 1;
208 210
209bad: 211bad:
210 if (raw_edid) { 212 if (raw_edid && print_bad_edid) {
211 printk(KERN_ERR "Raw EDID:\n"); 213 printk(KERN_ERR "Raw EDID:\n");
212 print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1, 214 print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
213 raw_edid, EDID_LENGTH, false); 215 raw_edid, EDID_LENGTH, false);
@@ -231,7 +233,7 @@ bool drm_edid_is_valid(struct edid *edid)
231 return false; 233 return false;
232 234
233 for (i = 0; i <= edid->extensions; i++) 235 for (i = 0; i <= edid->extensions; i++)
234 if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i)) 236 if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true))
235 return false; 237 return false;
236 238
237 return true; 239 return true;
@@ -316,6 +318,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
316{ 318{
317 int i, j = 0, valid_extensions = 0; 319 int i, j = 0, valid_extensions = 0;
318 u8 *block, *new; 320 u8 *block, *new;
321 bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
319 322
320 if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) 323 if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
321 return NULL; 324 return NULL;
@@ -324,7 +327,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
324 for (i = 0; i < 4; i++) { 327 for (i = 0; i < 4; i++) {
325 if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH)) 328 if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH))
326 goto out; 329 goto out;
327 if (drm_edid_block_valid(block, 0)) 330 if (drm_edid_block_valid(block, 0, print_bad_edid))
328 break; 331 break;
329 if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) { 332 if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) {
330 connector->null_edid_counter++; 333 connector->null_edid_counter++;
@@ -349,7 +352,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
349 block + (valid_extensions + 1) * EDID_LENGTH, 352 block + (valid_extensions + 1) * EDID_LENGTH,
350 j, EDID_LENGTH)) 353 j, EDID_LENGTH))
351 goto out; 354 goto out;
352 if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j)) { 355 if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j, print_bad_edid)) {
353 valid_extensions++; 356 valid_extensions++;
354 break; 357 break;
355 } 358 }
@@ -372,8 +375,11 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
372 return block; 375 return block;
373 376
374carp: 377carp:
375 dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n", 378 if (print_bad_edid) {
376 drm_get_connector_name(connector), j); 379 dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
380 drm_get_connector_name(connector), j);
381 }
382 connector->bad_edid_counter++;
377 383
378out: 384out:
379 kfree(block); 385 kfree(block);
diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c
index 186832e1874e..ea9cdab3d431 100644
--- a/drivers/gpu/drm/drm_edid_load.c
+++ b/drivers/gpu/drm/drm_edid_load.c
@@ -123,6 +123,7 @@ static u8 *edid_load(struct drm_connector *connector, char *name,
123 int fwsize, expected; 123 int fwsize, expected;
124 int builtin = 0, err = 0; 124 int builtin = 0, err = 0;
125 int i, valid_extensions = 0; 125 int i, valid_extensions = 0;
126 bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
126 127
127 pdev = platform_device_register_simple(connector_name, -1, NULL, 0); 128 pdev = platform_device_register_simple(connector_name, -1, NULL, 0);
128 if (IS_ERR(pdev)) { 129 if (IS_ERR(pdev)) {
@@ -173,7 +174,8 @@ static u8 *edid_load(struct drm_connector *connector, char *name,
173 } 174 }
174 memcpy(edid, fwdata, fwsize); 175 memcpy(edid, fwdata, fwsize);
175 176
176 if (!drm_edid_block_valid(edid, 0)) { 177 if (!drm_edid_block_valid(edid, 0, print_bad_edid)) {
178 connector->bad_edid_counter++;
177 DRM_ERROR("Base block of EDID firmware \"%s\" is invalid ", 179 DRM_ERROR("Base block of EDID firmware \"%s\" is invalid ",
178 name); 180 name);
179 kfree(edid); 181 kfree(edid);
@@ -185,7 +187,7 @@ static u8 *edid_load(struct drm_connector *connector, char *name,
185 if (i != valid_extensions + 1) 187 if (i != valid_extensions + 1)
186 memcpy(edid + (valid_extensions + 1) * EDID_LENGTH, 188 memcpy(edid + (valid_extensions + 1) * EDID_LENGTH,
187 edid + i * EDID_LENGTH, EDID_LENGTH); 189 edid + i * EDID_LENGTH, EDID_LENGTH);
188 if (drm_edid_block_valid(edid + i * EDID_LENGTH, i)) 190 if (drm_edid_block_valid(edid + i * EDID_LENGTH, i, print_bad_edid))
189 valid_extensions++; 191 valid_extensions++;
190 } 192 }
191 193
diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
new file mode 100644
index 000000000000..09e11a5d921a
--- /dev/null
+++ b/drivers/gpu/drm/drm_fb_cma_helper.c
@@ -0,0 +1,406 @@
1/*
2 * drm kms/fb cma (contiguous memory allocator) helper functions
3 *
4 * Copyright (C) 2012 Analog Device Inc.
5 * Author: Lars-Peter Clausen <lars@metafoo.de>
6 *
7 * Based on udl_fbdev.c
8 * Copyright (C) 2012 Red Hat
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
19
20#include <drm/drmP.h>
21#include <drm/drm_crtc.h>
22#include <drm/drm_fb_helper.h>
23#include <drm/drm_crtc_helper.h>
24#include <drm/drm_gem_cma_helper.h>
25#include <drm/drm_fb_cma_helper.h>
26#include <linux/module.h>
27
28struct drm_fb_cma {
29 struct drm_framebuffer fb;
30 struct drm_gem_cma_object *obj[4];
31};
32
33struct drm_fbdev_cma {
34 struct drm_fb_helper fb_helper;
35 struct drm_fb_cma *fb;
36};
37
38static inline struct drm_fbdev_cma *to_fbdev_cma(struct drm_fb_helper *helper)
39{
40 return container_of(helper, struct drm_fbdev_cma, fb_helper);
41}
42
43static inline struct drm_fb_cma *to_fb_cma(struct drm_framebuffer *fb)
44{
45 return container_of(fb, struct drm_fb_cma, fb);
46}
47
48static void drm_fb_cma_destroy(struct drm_framebuffer *fb)
49{
50 struct drm_fb_cma *fb_cma = to_fb_cma(fb);
51 int i;
52
53 for (i = 0; i < 4; i++) {
54 if (fb_cma->obj[i])
55 drm_gem_object_unreference_unlocked(&fb_cma->obj[i]->base);
56 }
57
58 drm_framebuffer_cleanup(fb);
59 kfree(fb_cma);
60}
61
62static int drm_fb_cma_create_handle(struct drm_framebuffer *fb,
63 struct drm_file *file_priv, unsigned int *handle)
64{
65 struct drm_fb_cma *fb_cma = to_fb_cma(fb);
66
67 return drm_gem_handle_create(file_priv,
68 &fb_cma->obj[0]->base, handle);
69}
70
71static struct drm_framebuffer_funcs drm_fb_cma_funcs = {
72 .destroy = drm_fb_cma_destroy,
73 .create_handle = drm_fb_cma_create_handle,
74};
75
76static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev,
77 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_cma_object **obj,
78 unsigned int num_planes)
79{
80 struct drm_fb_cma *fb_cma;
81 int ret;
82 int i;
83
84 fb_cma = kzalloc(sizeof(*fb_cma), GFP_KERNEL);
85 if (!fb_cma)
86 return ERR_PTR(-ENOMEM);
87
88 ret = drm_framebuffer_init(dev, &fb_cma->fb, &drm_fb_cma_funcs);
89 if (ret) {
90 dev_err(dev->dev, "Failed to initalize framebuffer: %d\n", ret);
91 kfree(fb_cma);
92 return ERR_PTR(ret);
93 }
94
95 drm_helper_mode_fill_fb_struct(&fb_cma->fb, mode_cmd);
96
97 for (i = 0; i < num_planes; i++)
98 fb_cma->obj[i] = obj[i];
99
100 return fb_cma;
101}
102
103/**
104 * drm_fb_cma_create() - (struct drm_mode_config_funcs *)->fb_create callback function
105 *
106 * If your hardware has special alignment or pitch requirements these should be
107 * checked before calling this function.
108 */
109struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
110 struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd)
111{
112 struct drm_fb_cma *fb_cma;
113 struct drm_gem_cma_object *objs[4];
114 struct drm_gem_object *obj;
115 unsigned int hsub;
116 unsigned int vsub;
117 int ret;
118 int i;
119
120 hsub = drm_format_horz_chroma_subsampling(mode_cmd->pixel_format);
121 vsub = drm_format_vert_chroma_subsampling(mode_cmd->pixel_format);
122
123 for (i = 0; i < drm_format_num_planes(mode_cmd->pixel_format); i++) {
124 unsigned int width = mode_cmd->width / (i ? hsub : 1);
125 unsigned int height = mode_cmd->height / (i ? vsub : 1);
126 unsigned int min_size;
127
128 obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[i]);
129 if (!obj) {
130 dev_err(dev->dev, "Failed to lookup GEM object\n");
131 ret = -ENXIO;
132 goto err_gem_object_unreference;
133 }
134
135 min_size = (height - 1) * mode_cmd->pitches[i]
136 + width * drm_format_plane_cpp(mode_cmd->pixel_format, i)
137 + mode_cmd->offsets[i];
138
139 if (obj->size < min_size) {
140 drm_gem_object_unreference_unlocked(obj);
141 ret = -EINVAL;
142 goto err_gem_object_unreference;
143 }
144 objs[i] = to_drm_gem_cma_obj(obj);
145 }
146
147 fb_cma = drm_fb_cma_alloc(dev, mode_cmd, objs, i);
148 if (IS_ERR(fb_cma)) {
149 ret = PTR_ERR(fb_cma);
150 goto err_gem_object_unreference;
151 }
152
153 return &fb_cma->fb;
154
155err_gem_object_unreference:
156 for (i--; i >= 0; i--)
157 drm_gem_object_unreference_unlocked(&objs[i]->base);
158 return ERR_PTR(ret);
159}
160EXPORT_SYMBOL_GPL(drm_fb_cma_create);
161
162/**
163 * drm_fb_cma_get_gem_obj() - Get CMA GEM object for framebuffer
164 * @fb: The framebuffer
165 * @plane: Which plane
166 *
167 * Return the CMA GEM object for given framebuffer.
168 *
169 * This function will usually be called from the CRTC callback functions.
170 */
171struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
172 unsigned int plane)
173{
174 struct drm_fb_cma *fb_cma = to_fb_cma(fb);
175
176 if (plane >= 4)
177 return NULL;
178
179 return fb_cma->obj[plane];
180}
181EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj);
182
183static struct fb_ops drm_fbdev_cma_ops = {
184 .owner = THIS_MODULE,
185 .fb_fillrect = sys_fillrect,
186 .fb_copyarea = sys_copyarea,
187 .fb_imageblit = sys_imageblit,
188 .fb_check_var = drm_fb_helper_check_var,
189 .fb_set_par = drm_fb_helper_set_par,
190 .fb_blank = drm_fb_helper_blank,
191 .fb_pan_display = drm_fb_helper_pan_display,
192 .fb_setcmap = drm_fb_helper_setcmap,
193};
194
195static int drm_fbdev_cma_create(struct drm_fb_helper *helper,
196 struct drm_fb_helper_surface_size *sizes)
197{
198 struct drm_fbdev_cma *fbdev_cma = to_fbdev_cma(helper);
199 struct drm_mode_fb_cmd2 mode_cmd = { 0 };
200 struct drm_device *dev = helper->dev;
201 struct drm_gem_cma_object *obj;
202 struct drm_framebuffer *fb;
203 unsigned int bytes_per_pixel;
204 unsigned long offset;
205 struct fb_info *fbi;
206 size_t size;
207 int ret;
208
209 DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d\n",
210 sizes->surface_width, sizes->surface_height,
211 sizes->surface_bpp);
212
213 bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8);
214
215 mode_cmd.width = sizes->surface_width;
216 mode_cmd.height = sizes->surface_height;
217 mode_cmd.pitches[0] = sizes->surface_width * bytes_per_pixel;
218 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
219 sizes->surface_depth);
220
221 size = mode_cmd.pitches[0] * mode_cmd.height;
222 obj = drm_gem_cma_create(dev, size);
223 if (!obj)
224 return -ENOMEM;
225
226 fbi = framebuffer_alloc(0, dev->dev);
227 if (!fbi) {
228 dev_err(dev->dev, "Failed to allocate framebuffer info.\n");
229 ret = -ENOMEM;
230 goto err_drm_gem_cma_free_object;
231 }
232
233 fbdev_cma->fb = drm_fb_cma_alloc(dev, &mode_cmd, &obj, 1);
234 if (IS_ERR(fbdev_cma->fb)) {
235 dev_err(dev->dev, "Failed to allocate DRM framebuffer.\n");
236 ret = PTR_ERR(fbdev_cma->fb);
237 goto err_framebuffer_release;
238 }
239
240 fb = &fbdev_cma->fb->fb;
241 helper->fb = fb;
242 helper->fbdev = fbi;
243
244 fbi->par = helper;
245 fbi->flags = FBINFO_FLAG_DEFAULT;
246 fbi->fbops = &drm_fbdev_cma_ops;
247
248 ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
249 if (ret) {
250 dev_err(dev->dev, "Failed to allocate color map.\n");
251 goto err_drm_fb_cma_destroy;
252 }
253
254 drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth);
255 drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height);
256
257 offset = fbi->var.xoffset * bytes_per_pixel;
258 offset += fbi->var.yoffset * fb->pitches[0];
259
260 dev->mode_config.fb_base = (resource_size_t)obj->paddr;
261 fbi->screen_base = obj->vaddr + offset;
262 fbi->fix.smem_start = (unsigned long)(obj->paddr + offset);
263 fbi->screen_size = size;
264 fbi->fix.smem_len = size;
265
266 return 0;
267
268err_drm_fb_cma_destroy:
269 drm_fb_cma_destroy(fb);
270err_framebuffer_release:
271 framebuffer_release(fbi);
272err_drm_gem_cma_free_object:
273 drm_gem_cma_free_object(&obj->base);
274 return ret;
275}
276
277static int drm_fbdev_cma_probe(struct drm_fb_helper *helper,
278 struct drm_fb_helper_surface_size *sizes)
279{
280 int ret = 0;
281
282 if (!helper->fb) {
283 ret = drm_fbdev_cma_create(helper, sizes);
284 if (ret < 0)
285 return ret;
286 ret = 1;
287 }
288
289 return ret;
290}
291
292static struct drm_fb_helper_funcs drm_fb_cma_helper_funcs = {
293 .fb_probe = drm_fbdev_cma_probe,
294};
295
296/**
297 * drm_fbdev_cma_init() - Allocate and initializes a drm_fbdev_cma struct
298 * @dev: DRM device
299 * @preferred_bpp: Preferred bits per pixel for the device
300 * @num_crtc: Number of CRTCs
301 * @max_conn_count: Maximum number of connectors
302 *
303 * Returns a newly allocated drm_fbdev_cma struct or a ERR_PTR.
304 */
305struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
306 unsigned int preferred_bpp, unsigned int num_crtc,
307 unsigned int max_conn_count)
308{
309 struct drm_fbdev_cma *fbdev_cma;
310 struct drm_fb_helper *helper;
311 int ret;
312
313 fbdev_cma = kzalloc(sizeof(*fbdev_cma), GFP_KERNEL);
314 if (!fbdev_cma) {
315 dev_err(dev->dev, "Failed to allocate drm fbdev.\n");
316 return ERR_PTR(-ENOMEM);
317 }
318
319 fbdev_cma->fb_helper.funcs = &drm_fb_cma_helper_funcs;
320 helper = &fbdev_cma->fb_helper;
321
322 ret = drm_fb_helper_init(dev, helper, num_crtc, max_conn_count);
323 if (ret < 0) {
324 dev_err(dev->dev, "Failed to initialize drm fb helper.\n");
325 goto err_free;
326 }
327
328 ret = drm_fb_helper_single_add_all_connectors(helper);
329 if (ret < 0) {
330 dev_err(dev->dev, "Failed to add connectors.\n");
331 goto err_drm_fb_helper_fini;
332
333 }
334
335 ret = drm_fb_helper_initial_config(helper, preferred_bpp);
336 if (ret < 0) {
337 dev_err(dev->dev, "Failed to set inital hw configuration.\n");
338 goto err_drm_fb_helper_fini;
339 }
340
341 return fbdev_cma;
342
343err_drm_fb_helper_fini:
344 drm_fb_helper_fini(helper);
345err_free:
346 kfree(fbdev_cma);
347
348 return ERR_PTR(ret);
349}
350EXPORT_SYMBOL_GPL(drm_fbdev_cma_init);
351
352/**
353 * drm_fbdev_cma_fini() - Free drm_fbdev_cma struct
354 * @fbdev_cma: The drm_fbdev_cma struct
355 */
356void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma)
357{
358 if (fbdev_cma->fb_helper.fbdev) {
359 struct fb_info *info;
360 int ret;
361
362 info = fbdev_cma->fb_helper.fbdev;
363 ret = unregister_framebuffer(info);
364 if (ret < 0)
365 DRM_DEBUG_KMS("failed unregister_framebuffer()\n");
366
367 if (info->cmap.len)
368 fb_dealloc_cmap(&info->cmap);
369
370 framebuffer_release(info);
371 }
372
373 if (fbdev_cma->fb)
374 drm_fb_cma_destroy(&fbdev_cma->fb->fb);
375
376 drm_fb_helper_fini(&fbdev_cma->fb_helper);
377 kfree(fbdev_cma);
378}
379EXPORT_SYMBOL_GPL(drm_fbdev_cma_fini);
380
381/**
382 * drm_fbdev_cma_restore_mode() - Restores initial framebuffer mode
383 * @fbdev_cma: The drm_fbdev_cma struct, may be NULL
384 *
385 * This function is usually called from the DRM drivers lastclose callback.
386 */
387void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma)
388{
389 if (fbdev_cma)
390 drm_fb_helper_restore_fbdev_mode(&fbdev_cma->fb_helper);
391}
392EXPORT_SYMBOL_GPL(drm_fbdev_cma_restore_mode);
393
394/**
395 * drm_fbdev_cma_hotplug_event() - Poll for hotpulug events
396 * @fbdev_cma: The drm_fbdev_cma struct, may be NULL
397 *
398 * This function is usually called from the DRM drivers output_poll_changed
399 * callback.
400 */
401void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma)
402{
403 if (fbdev_cma)
404 drm_fb_helper_hotplug_event(&fbdev_cma->fb_helper);
405}
406EXPORT_SYMBOL_GPL(drm_fbdev_cma_hotplug_event);
diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
new file mode 100644
index 000000000000..1aa8fee1e865
--- /dev/null
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -0,0 +1,251 @@
1/*
2 * drm gem CMA (contiguous memory allocator) helper functions
3 *
4 * Copyright (C) 2012 Sascha Hauer, Pengutronix
5 *
6 * Based on Samsung Exynos code
7 *
8 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
19
20#include <linux/mm.h>
21#include <linux/slab.h>
22#include <linux/mutex.h>
23#include <linux/export.h>
24#include <linux/dma-mapping.h>
25
26#include <drm/drmP.h>
27#include <drm/drm.h>
28#include <drm/drm_gem_cma_helper.h>
29
30static unsigned int get_gem_mmap_offset(struct drm_gem_object *obj)
31{
32 return (unsigned int)obj->map_list.hash.key << PAGE_SHIFT;
33}
34
35static void drm_gem_cma_buf_destroy(struct drm_device *drm,
36 struct drm_gem_cma_object *cma_obj)
37{
38 dma_free_writecombine(drm->dev, cma_obj->base.size, cma_obj->vaddr,
39 cma_obj->paddr);
40}
41
42/*
43 * drm_gem_cma_create - allocate an object with the given size
44 *
45 * returns a struct drm_gem_cma_object* on success or ERR_PTR values
46 * on failure.
47 */
48struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
49 unsigned int size)
50{
51 struct drm_gem_cma_object *cma_obj;
52 struct drm_gem_object *gem_obj;
53 int ret;
54
55 size = round_up(size, PAGE_SIZE);
56
57 cma_obj = kzalloc(sizeof(*cma_obj), GFP_KERNEL);
58 if (!cma_obj)
59 return ERR_PTR(-ENOMEM);
60
61 cma_obj->vaddr = dma_alloc_writecombine(drm->dev, size,
62 &cma_obj->paddr, GFP_KERNEL | __GFP_NOWARN);
63 if (!cma_obj->vaddr) {
64 dev_err(drm->dev, "failed to allocate buffer with size %d\n", size);
65 ret = -ENOMEM;
66 goto err_dma_alloc;
67 }
68
69 gem_obj = &cma_obj->base;
70
71 ret = drm_gem_object_init(drm, gem_obj, size);
72 if (ret)
73 goto err_obj_init;
74
75 ret = drm_gem_create_mmap_offset(gem_obj);
76 if (ret)
77 goto err_create_mmap_offset;
78
79 return cma_obj;
80
81err_create_mmap_offset:
82 drm_gem_object_release(gem_obj);
83
84err_obj_init:
85 drm_gem_cma_buf_destroy(drm, cma_obj);
86
87err_dma_alloc:
88 kfree(cma_obj);
89
90 return ERR_PTR(ret);
91}
92EXPORT_SYMBOL_GPL(drm_gem_cma_create);
93
94/*
95 * drm_gem_cma_create_with_handle - allocate an object with the given
96 * size and create a gem handle on it
97 *
98 * returns a struct drm_gem_cma_object* on success or ERR_PTR values
99 * on failure.
100 */
101static struct drm_gem_cma_object *drm_gem_cma_create_with_handle(
102 struct drm_file *file_priv,
103 struct drm_device *drm, unsigned int size,
104 unsigned int *handle)
105{
106 struct drm_gem_cma_object *cma_obj;
107 struct drm_gem_object *gem_obj;
108 int ret;
109
110 cma_obj = drm_gem_cma_create(drm, size);
111 if (IS_ERR(cma_obj))
112 return cma_obj;
113
114 gem_obj = &cma_obj->base;
115
116 /*
117 * allocate a id of idr table where the obj is registered
118 * and handle has the id what user can see.
119 */
120 ret = drm_gem_handle_create(file_priv, gem_obj, handle);
121 if (ret)
122 goto err_handle_create;
123
124 /* drop reference from allocate - handle holds it now. */
125 drm_gem_object_unreference_unlocked(gem_obj);
126
127 return cma_obj;
128
129err_handle_create:
130 drm_gem_cma_free_object(gem_obj);
131
132 return ERR_PTR(ret);
133}
134
135/*
136 * drm_gem_cma_free_object - (struct drm_driver)->gem_free_object callback
137 * function
138 */
139void drm_gem_cma_free_object(struct drm_gem_object *gem_obj)
140{
141 struct drm_gem_cma_object *cma_obj;
142
143 if (gem_obj->map_list.map)
144 drm_gem_free_mmap_offset(gem_obj);
145
146 drm_gem_object_release(gem_obj);
147
148 cma_obj = to_drm_gem_cma_obj(gem_obj);
149
150 drm_gem_cma_buf_destroy(gem_obj->dev, cma_obj);
151
152 kfree(cma_obj);
153}
154EXPORT_SYMBOL_GPL(drm_gem_cma_free_object);
155
156/*
157 * drm_gem_cma_dumb_create - (struct drm_driver)->dumb_create callback
158 * function
159 *
160 * This aligns the pitch and size arguments to the minimum required. wrap
161 * this into your own function if you need bigger alignment.
162 */
163int drm_gem_cma_dumb_create(struct drm_file *file_priv,
164 struct drm_device *dev, struct drm_mode_create_dumb *args)
165{
166 struct drm_gem_cma_object *cma_obj;
167 int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
168
169 if (args->pitch < min_pitch)
170 args->pitch = min_pitch;
171
172 if (args->size < args->pitch * args->height)
173 args->size = args->pitch * args->height;
174
175 cma_obj = drm_gem_cma_create_with_handle(file_priv, dev,
176 args->size, &args->handle);
177 if (IS_ERR(cma_obj))
178 return PTR_ERR(cma_obj);
179
180 return 0;
181}
182EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_create);
183
184/*
185 * drm_gem_cma_dumb_map_offset - (struct drm_driver)->dumb_map_offset callback
186 * function
187 */
188int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
189 struct drm_device *drm, uint32_t handle, uint64_t *offset)
190{
191 struct drm_gem_object *gem_obj;
192
193 mutex_lock(&drm->struct_mutex);
194
195 gem_obj = drm_gem_object_lookup(drm, file_priv, handle);
196 if (!gem_obj) {
197 dev_err(drm->dev, "failed to lookup gem object\n");
198 mutex_unlock(&drm->struct_mutex);
199 return -EINVAL;
200 }
201
202 *offset = get_gem_mmap_offset(gem_obj);
203
204 drm_gem_object_unreference(gem_obj);
205
206 mutex_unlock(&drm->struct_mutex);
207
208 return 0;
209}
210EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_map_offset);
211
212const struct vm_operations_struct drm_gem_cma_vm_ops = {
213 .open = drm_gem_vm_open,
214 .close = drm_gem_vm_close,
215};
216EXPORT_SYMBOL_GPL(drm_gem_cma_vm_ops);
217
218/*
219 * drm_gem_cma_mmap - (struct file_operation)->mmap callback function
220 */
221int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma)
222{
223 struct drm_gem_object *gem_obj;
224 struct drm_gem_cma_object *cma_obj;
225 int ret;
226
227 ret = drm_gem_mmap(filp, vma);
228 if (ret)
229 return ret;
230
231 gem_obj = vma->vm_private_data;
232 cma_obj = to_drm_gem_cma_obj(gem_obj);
233
234 ret = remap_pfn_range(vma, vma->vm_start, cma_obj->paddr >> PAGE_SHIFT,
235 vma->vm_end - vma->vm_start, vma->vm_page_prot);
236 if (ret)
237 drm_gem_vm_close(vma);
238
239 return ret;
240}
241EXPORT_SYMBOL_GPL(drm_gem_cma_mmap);
242
243/*
244 * drm_gem_cma_dumb_destroy - (struct drm_driver)->dumb_destroy callback function
245 */
246int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
247 struct drm_device *drm, unsigned int handle)
248{
249 return drm_gem_handle_delete(file_priv, handle);
250}
251EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_destroy);
diff --git a/drivers/gpu/drm/shmobile/Kconfig b/drivers/gpu/drm/shmobile/Kconfig
new file mode 100644
index 000000000000..7e7d52b2a2fc
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/Kconfig
@@ -0,0 +1,10 @@
1config DRM_SHMOBILE
2 tristate "DRM Support for SH Mobile"
3 depends on DRM && (SUPERH || ARCH_SHMOBILE)
4 select DRM_KMS_HELPER
5 select DRM_KMS_CMA_HELPER
6 select DRM_GEM_CMA_HELPER
7 help
8 Choose this option if you have an SH Mobile chipset.
9 If M is selected the module will be called shmob-drm.
10
diff --git a/drivers/gpu/drm/shmobile/Makefile b/drivers/gpu/drm/shmobile/Makefile
new file mode 100644
index 000000000000..4c3eeb355630
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/Makefile
@@ -0,0 +1,7 @@
1shmob-drm-y := shmob_drm_backlight.o \
2 shmob_drm_crtc.o \
3 shmob_drm_drv.o \
4 shmob_drm_kms.o \
5 shmob_drm_plane.o
6
7obj-$(CONFIG_DRM_SHMOBILE) += shmob-drm.o
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
new file mode 100644
index 000000000000..463aee18f774
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
@@ -0,0 +1,90 @@
1/*
2 * shmob_drm_backlight.c -- SH Mobile DRM Backlight
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/backlight.h>
15
16#include "shmob_drm_backlight.h"
17#include "shmob_drm_crtc.h"
18#include "shmob_drm_drv.h"
19
20static int shmob_drm_backlight_update(struct backlight_device *bdev)
21{
22 struct shmob_drm_connector *scon = bl_get_data(bdev);
23 struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
24 const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
25 int brightness = bdev->props.brightness;
26
27 if (bdev->props.power != FB_BLANK_UNBLANK ||
28 bdev->props.state & BL_CORE_SUSPENDED)
29 brightness = 0;
30
31 return bdata->set_brightness(brightness);
32}
33
34static int shmob_drm_backlight_get_brightness(struct backlight_device *bdev)
35{
36 struct shmob_drm_connector *scon = bl_get_data(bdev);
37 struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
38 const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
39
40 return bdata->get_brightness();
41}
42
43static const struct backlight_ops shmob_drm_backlight_ops = {
44 .options = BL_CORE_SUSPENDRESUME,
45 .update_status = shmob_drm_backlight_update,
46 .get_brightness = shmob_drm_backlight_get_brightness,
47};
48
49void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode)
50{
51 if (scon->backlight == NULL)
52 return;
53
54 scon->backlight->props.power = mode == DRM_MODE_DPMS_ON
55 ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
56 backlight_update_status(scon->backlight);
57}
58
59int shmob_drm_backlight_init(struct shmob_drm_connector *scon)
60{
61 struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
62 const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
63 struct drm_connector *connector = &scon->connector;
64 struct drm_device *dev = connector->dev;
65 struct backlight_device *backlight;
66
67 if (!bdata->max_brightness)
68 return 0;
69
70 backlight = backlight_device_register(bdata->name, dev->dev, scon,
71 &shmob_drm_backlight_ops, NULL);
72 if (IS_ERR(backlight)) {
73 dev_err(dev->dev, "unable to register backlight device: %ld\n",
74 PTR_ERR(backlight));
75 return PTR_ERR(backlight);
76 }
77
78 backlight->props.max_brightness = bdata->max_brightness;
79 backlight->props.brightness = bdata->max_brightness;
80 backlight->props.power = FB_BLANK_POWERDOWN;
81 backlight_update_status(backlight);
82
83 scon->backlight = backlight;
84 return 0;
85}
86
87void shmob_drm_backlight_exit(struct shmob_drm_connector *scon)
88{
89 backlight_device_unregister(scon->backlight);
90}
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.h b/drivers/gpu/drm/shmobile/shmob_drm_backlight.h
new file mode 100644
index 000000000000..9477595d2ff3
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.h
@@ -0,0 +1,23 @@
1/*
2 * shmob_drm_backlight.h -- SH Mobile DRM Backlight
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __SHMOB_DRM_BACKLIGHT_H__
15#define __SHMOB_DRM_BACKLIGHT_H__
16
17struct shmob_drm_connector;
18
19void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode);
20int shmob_drm_backlight_init(struct shmob_drm_connector *scon);
21void shmob_drm_backlight_exit(struct shmob_drm_connector *scon);
22
23#endif /* __SHMOB_DRM_BACKLIGHT_H__ */
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
new file mode 100644
index 000000000000..0e7a9306bd0c
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
@@ -0,0 +1,763 @@
1/*
2 * shmob_drm_crtc.c -- SH Mobile DRM CRTCs
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/backlight.h>
15#include <linux/clk.h>
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc.h>
19#include <drm/drm_crtc_helper.h>
20#include <drm/drm_fb_cma_helper.h>
21#include <drm/drm_gem_cma_helper.h>
22
23#include <video/sh_mobile_meram.h>
24
25#include "shmob_drm_backlight.h"
26#include "shmob_drm_crtc.h"
27#include "shmob_drm_drv.h"
28#include "shmob_drm_kms.h"
29#include "shmob_drm_plane.h"
30#include "shmob_drm_regs.h"
31
32/*
33 * TODO: panel support
34 */
35
36/* -----------------------------------------------------------------------------
37 * Clock management
38 */
39
40static void shmob_drm_clk_on(struct shmob_drm_device *sdev)
41{
42 if (sdev->clock)
43 clk_enable(sdev->clock);
44#if 0
45 if (sdev->meram_dev && sdev->meram_dev->pdev)
46 pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
47#endif
48}
49
50static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
51{
52#if 0
53 if (sdev->meram_dev && sdev->meram_dev->pdev)
54 pm_runtime_put_sync(&sdev->meram_dev->pdev->dev);
55#endif
56 if (sdev->clock)
57 clk_disable(sdev->clock);
58}
59
60/* -----------------------------------------------------------------------------
61 * CRTC
62 */
63
64static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
65{
66 struct drm_crtc *crtc = &scrtc->crtc;
67 struct shmob_drm_device *sdev = crtc->dev->dev_private;
68 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
69 const struct drm_display_mode *mode = &crtc->mode;
70 u32 value;
71
72 value = sdev->ldmt1r
73 | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL)
74 | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL)
75 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0)
76 | ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0)
77 | ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0)
78 | ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0)
79 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0);
80 lcdc_write(sdev, LDMT1R, value);
81
82 if (idata->interface >= SHMOB_DRM_IFACE_SYS8A &&
83 idata->interface <= SHMOB_DRM_IFACE_SYS24) {
84 /* Setup SYS bus. */
85 value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT)
86 | (idata->sys.vsync_active_high ? LDMT2R_RSV : 0)
87 | (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0)
88 | (idata->sys.write_setup << LDMT2R_WCSC_SHIFT)
89 | (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT)
90 | (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT);
91 lcdc_write(sdev, LDMT2R, value);
92
93 value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT)
94 | (idata->sys.read_setup << LDMT3R_RCSC_SHIFT)
95 | (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT)
96 | (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT);
97 lcdc_write(sdev, LDMT3R, value);
98 }
99
100 value = ((mode->hdisplay / 8) << 16) /* HDCN */
101 | (mode->htotal / 8); /* HTCN */
102 lcdc_write(sdev, LDHCNR, value);
103
104 value = (((mode->hsync_end - mode->hsync_start) / 8) << 16) /* HSYNW */
105 | (mode->hsync_start / 8); /* HSYNP */
106 lcdc_write(sdev, LDHSYNR, value);
107
108 value = ((mode->hdisplay & 7) << 24) | ((mode->htotal & 7) << 16)
109 | (((mode->hsync_end - mode->hsync_start) & 7) << 8)
110 | (mode->hsync_start & 7);
111 lcdc_write(sdev, LDHAJR, value);
112
113 value = ((mode->vdisplay) << 16) /* VDLN */
114 | mode->vtotal; /* VTLN */
115 lcdc_write(sdev, LDVLNR, value);
116
117 value = ((mode->vsync_end - mode->vsync_start) << 16) /* VSYNW */
118 | mode->vsync_start; /* VSYNP */
119 lcdc_write(sdev, LDVSYNR, value);
120}
121
122static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
123{
124 struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
125 u32 value;
126
127 value = lcdc_read(sdev, LDCNT2R);
128 if (start)
129 lcdc_write(sdev, LDCNT2R, value | LDCNT2R_DO);
130 else
131 lcdc_write(sdev, LDCNT2R, value & ~LDCNT2R_DO);
132
133 /* Wait until power is applied/stopped. */
134 while (1) {
135 value = lcdc_read(sdev, LDPMR) & LDPMR_LPS;
136 if ((start && value) || (!start && !value))
137 break;
138
139 cpu_relax();
140 }
141
142 if (!start) {
143 /* Stop the dot clock. */
144 lcdc_write(sdev, LDDCKSTPR, LDDCKSTPR_DCKSTP);
145 }
146}
147
148/*
149 * shmob_drm_crtc_start - Configure and start the LCDC
150 * @scrtc: the SH Mobile CRTC
151 *
152 * Configure and start the LCDC device. External devices (clocks, MERAM, panels,
153 * ...) are not touched by this function.
154 */
155static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
156{
157 struct drm_crtc *crtc = &scrtc->crtc;
158 struct shmob_drm_device *sdev = crtc->dev->dev_private;
159 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
160 const struct shmob_drm_format_info *format;
161 struct drm_device *dev = sdev->ddev;
162 struct drm_plane *plane;
163 u32 value;
164
165 if (scrtc->started)
166 return;
167
168 format = shmob_drm_format_info(crtc->fb->pixel_format);
169 if (WARN_ON(format == NULL))
170 return;
171
172 /* Enable clocks before accessing the hardware. */
173 shmob_drm_clk_on(sdev);
174
175 /* Reset and enable the LCDC. */
176 lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR);
177 lcdc_wait_bit(sdev, LDCNT2R, LDCNT2R_BR, 0);
178 lcdc_write(sdev, LDCNT2R, LDCNT2R_ME);
179
180 /* Stop the LCDC first and disable all interrupts. */
181 shmob_drm_crtc_start_stop(scrtc, false);
182 lcdc_write(sdev, LDINTR, 0);
183
184 /* Configure power supply, dot clocks and start them. */
185 lcdc_write(sdev, LDPMR, 0);
186
187 value = sdev->lddckr;
188 if (idata->clk_div) {
189 /* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider
190 * denominator.
191 */
192 lcdc_write(sdev, LDDCKPAT1R, 0);
193 lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1);
194
195 if (idata->clk_div == 1)
196 value |= LDDCKR_MOSEL;
197 else
198 value |= idata->clk_div;
199 }
200
201 lcdc_write(sdev, LDDCKR, value);
202 lcdc_write(sdev, LDDCKSTPR, 0);
203 lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0);
204
205 /* TODO: Setup SYS panel */
206
207 /* Setup geometry, format, frame buffer memory and operation mode. */
208 shmob_drm_crtc_setup_geometry(scrtc);
209
210 /* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
211 lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
212 lcdc_write(sdev, LDMLSR, scrtc->line_size);
213 lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
214 if (format->yuv)
215 lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
216 lcdc_write(sdev, LDSM1R, 0);
217
218 /* Word and long word swap. */
219 switch (format->fourcc) {
220 case DRM_FORMAT_RGB565:
221 case DRM_FORMAT_NV21:
222 case DRM_FORMAT_NV61:
223 case DRM_FORMAT_NV42:
224 value = LDDDSR_LS | LDDDSR_WS;
225 break;
226 case DRM_FORMAT_RGB888:
227 case DRM_FORMAT_NV12:
228 case DRM_FORMAT_NV16:
229 case DRM_FORMAT_NV24:
230 value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
231 break;
232 case DRM_FORMAT_ARGB8888:
233 default:
234 value = LDDDSR_LS;
235 break;
236 }
237 lcdc_write(sdev, LDDDSR, value);
238
239 /* Setup planes. */
240 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
241 if (plane->crtc == crtc)
242 shmob_drm_plane_setup(plane);
243 }
244
245 /* Enable the display output. */
246 lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);
247
248 shmob_drm_crtc_start_stop(scrtc, true);
249
250 scrtc->started = true;
251}
252
253static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
254{
255 struct drm_crtc *crtc = &scrtc->crtc;
256 struct shmob_drm_device *sdev = crtc->dev->dev_private;
257
258 if (!scrtc->started)
259 return;
260
261 /* Disable the MERAM cache. */
262 if (scrtc->cache) {
263 sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
264 scrtc->cache = NULL;
265 }
266
267 /* Stop the LCDC. */
268 shmob_drm_crtc_start_stop(scrtc, false);
269
270 /* Disable the display output. */
271 lcdc_write(sdev, LDCNT1R, 0);
272
273 /* Stop clocks. */
274 shmob_drm_clk_off(sdev);
275
276 scrtc->started = false;
277}
278
279void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc)
280{
281 shmob_drm_crtc_stop(scrtc);
282}
283
284void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
285{
286 if (scrtc->dpms != DRM_MODE_DPMS_ON)
287 return;
288
289 shmob_drm_crtc_start(scrtc);
290}
291
292static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
293 int x, int y)
294{
295 struct drm_crtc *crtc = &scrtc->crtc;
296 struct drm_framebuffer *fb = crtc->fb;
297 struct shmob_drm_device *sdev = crtc->dev->dev_private;
298 struct drm_gem_cma_object *gem;
299 unsigned int bpp;
300
301 bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp;
302 gem = drm_fb_cma_get_gem_obj(fb, 0);
303 scrtc->dma[0] = gem->paddr + fb->offsets[0]
304 + y * fb->pitches[0] + x * bpp / 8;
305
306 if (scrtc->format->yuv) {
307 bpp = scrtc->format->bpp - 8;
308 gem = drm_fb_cma_get_gem_obj(fb, 1);
309 scrtc->dma[1] = gem->paddr + fb->offsets[1]
310 + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
311 + x * (bpp == 16 ? 2 : 1);
312 }
313
314 if (scrtc->cache)
315 sh_mobile_meram_cache_update(sdev->meram, scrtc->cache,
316 scrtc->dma[0], scrtc->dma[1],
317 &scrtc->dma[0], &scrtc->dma[1]);
318}
319
320static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
321{
322 struct drm_crtc *crtc = &scrtc->crtc;
323 struct shmob_drm_device *sdev = crtc->dev->dev_private;
324
325 shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
326
327 lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
328 if (scrtc->format->yuv)
329 lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
330
331 lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
332}
333
334#define to_shmob_crtc(c) container_of(c, struct shmob_drm_crtc, crtc)
335
336static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
337{
338 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
339
340 if (scrtc->dpms == mode)
341 return;
342
343 if (mode == DRM_MODE_DPMS_ON)
344 shmob_drm_crtc_start(scrtc);
345 else
346 shmob_drm_crtc_stop(scrtc);
347
348 scrtc->dpms = mode;
349}
350
351static bool shmob_drm_crtc_mode_fixup(struct drm_crtc *crtc,
352 const struct drm_display_mode *mode,
353 struct drm_display_mode *adjusted_mode)
354{
355 return true;
356}
357
358static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
359{
360 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
361}
362
363static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
364 struct drm_display_mode *mode,
365 struct drm_display_mode *adjusted_mode,
366 int x, int y,
367 struct drm_framebuffer *old_fb)
368{
369 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
370 struct shmob_drm_device *sdev = crtc->dev->dev_private;
371 const struct sh_mobile_meram_cfg *mdata = sdev->pdata->meram;
372 const struct shmob_drm_format_info *format;
373 void *cache;
374
375 format = shmob_drm_format_info(crtc->fb->pixel_format);
376 if (format == NULL) {
377 dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
378 crtc->fb->pixel_format);
379 return -EINVAL;
380 }
381
382 scrtc->format = format;
383 scrtc->line_size = crtc->fb->pitches[0];
384
385 if (sdev->meram) {
386 /* Enable MERAM cache if configured. We need to de-init
387 * configured ICBs before we can re-initialize them.
388 */
389 if (scrtc->cache) {
390 sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
391 scrtc->cache = NULL;
392 }
393
394 cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
395 crtc->fb->pitches[0],
396 adjusted_mode->vdisplay,
397 format->meram,
398 &scrtc->line_size);
399 if (!IS_ERR(cache))
400 scrtc->cache = cache;
401 }
402
403 shmob_drm_crtc_compute_base(scrtc, x, y);
404
405 return 0;
406}
407
408static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
409{
410 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
411}
412
413static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
414 struct drm_framebuffer *old_fb)
415{
416 shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
417
418 return 0;
419}
420
421static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
422 .dpms = shmob_drm_crtc_dpms,
423 .mode_fixup = shmob_drm_crtc_mode_fixup,
424 .prepare = shmob_drm_crtc_mode_prepare,
425 .commit = shmob_drm_crtc_mode_commit,
426 .mode_set = shmob_drm_crtc_mode_set,
427 .mode_set_base = shmob_drm_crtc_mode_set_base,
428};
429
430void shmob_drm_crtc_cancel_page_flip(struct shmob_drm_crtc *scrtc,
431 struct drm_file *file)
432{
433 struct drm_pending_vblank_event *event;
434 struct drm_device *dev = scrtc->crtc.dev;
435 unsigned long flags;
436
437 /* Destroy the pending vertical blanking event associated with the
438 * pending page flip, if any, and disable vertical blanking interrupts.
439 */
440 spin_lock_irqsave(&dev->event_lock, flags);
441 event = scrtc->event;
442 if (event && event->base.file_priv == file) {
443 scrtc->event = NULL;
444 event->base.destroy(&event->base);
445 drm_vblank_put(dev, 0);
446 }
447 spin_unlock_irqrestore(&dev->event_lock, flags);
448}
449
450void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
451{
452 struct drm_pending_vblank_event *event;
453 struct drm_device *dev = scrtc->crtc.dev;
454 struct timeval vblanktime;
455 unsigned long flags;
456
457 spin_lock_irqsave(&dev->event_lock, flags);
458 event = scrtc->event;
459 scrtc->event = NULL;
460 spin_unlock_irqrestore(&dev->event_lock, flags);
461
462 if (event == NULL)
463 return;
464
465 event->event.sequence = drm_vblank_count_and_time(dev, 0, &vblanktime);
466 event->event.tv_sec = vblanktime.tv_sec;
467 event->event.tv_usec = vblanktime.tv_usec;
468
469 spin_lock_irqsave(&dev->event_lock, flags);
470 list_add_tail(&event->base.link, &event->base.file_priv->event_list);
471 wake_up_interruptible(&event->base.file_priv->event_wait);
472 spin_unlock_irqrestore(&dev->event_lock, flags);
473
474 drm_vblank_put(dev, 0);
475}
476
477static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
478 struct drm_framebuffer *fb,
479 struct drm_pending_vblank_event *event)
480{
481 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
482 struct drm_device *dev = scrtc->crtc.dev;
483 unsigned long flags;
484
485 spin_lock_irqsave(&dev->event_lock, flags);
486 if (scrtc->event != NULL) {
487 spin_unlock_irqrestore(&dev->event_lock, flags);
488 return -EBUSY;
489 }
490 spin_unlock_irqrestore(&dev->event_lock, flags);
491
492 crtc->fb = fb;
493 shmob_drm_crtc_update_base(scrtc);
494
495 if (event) {
496 event->pipe = 0;
497 spin_lock_irqsave(&dev->event_lock, flags);
498 scrtc->event = event;
499 spin_unlock_irqrestore(&dev->event_lock, flags);
500 drm_vblank_get(dev, 0);
501 }
502
503 return 0;
504}
505
506static const struct drm_crtc_funcs crtc_funcs = {
507 .destroy = drm_crtc_cleanup,
508 .set_config = drm_crtc_helper_set_config,
509 .page_flip = shmob_drm_crtc_page_flip,
510};
511
512int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
513{
514 struct drm_crtc *crtc = &sdev->crtc.crtc;
515 int ret;
516
517 sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
518
519 ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs);
520 if (ret < 0)
521 return ret;
522
523 drm_crtc_helper_add(crtc, &crtc_helper_funcs);
524
525 return 0;
526}
527
528/* -----------------------------------------------------------------------------
529 * Encoder
530 */
531
532#define to_shmob_encoder(e) \
533 container_of(e, struct shmob_drm_encoder, encoder)
534
535static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
536{
537 struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
538 struct shmob_drm_device *sdev = encoder->dev->dev_private;
539 struct shmob_drm_connector *scon = &sdev->connector;
540
541 if (senc->dpms == mode)
542 return;
543
544 shmob_drm_backlight_dpms(scon, mode);
545
546 senc->dpms = mode;
547}
548
549static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
550 const struct drm_display_mode *mode,
551 struct drm_display_mode *adjusted_mode)
552{
553 struct drm_device *dev = encoder->dev;
554 struct shmob_drm_device *sdev = dev->dev_private;
555 struct drm_connector *connector = &sdev->connector.connector;
556 const struct drm_display_mode *panel_mode;
557
558 if (list_empty(&connector->modes)) {
559 dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
560 return false;
561 }
562
563 /* The flat panel mode is fixed, just copy it to the adjusted mode. */
564 panel_mode = list_first_entry(&connector->modes,
565 struct drm_display_mode, head);
566 drm_mode_copy(adjusted_mode, panel_mode);
567
568 return true;
569}
570
571static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
572{
573 /* No-op, everything is handled in the CRTC code. */
574}
575
576static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
577 struct drm_display_mode *mode,
578 struct drm_display_mode *adjusted_mode)
579{
580 /* No-op, everything is handled in the CRTC code. */
581}
582
583static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
584{
585 /* No-op, everything is handled in the CRTC code. */
586}
587
588static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
589 .dpms = shmob_drm_encoder_dpms,
590 .mode_fixup = shmob_drm_encoder_mode_fixup,
591 .prepare = shmob_drm_encoder_mode_prepare,
592 .commit = shmob_drm_encoder_mode_commit,
593 .mode_set = shmob_drm_encoder_mode_set,
594};
595
596static void shmob_drm_encoder_destroy(struct drm_encoder *encoder)
597{
598 drm_encoder_cleanup(encoder);
599}
600
601static const struct drm_encoder_funcs encoder_funcs = {
602 .destroy = shmob_drm_encoder_destroy,
603};
604
605int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
606{
607 struct drm_encoder *encoder = &sdev->encoder.encoder;
608 int ret;
609
610 sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
611
612 encoder->possible_crtcs = 1;
613
614 ret = drm_encoder_init(sdev->ddev, encoder, &encoder_funcs,
615 DRM_MODE_ENCODER_LVDS);
616 if (ret < 0)
617 return ret;
618
619 drm_encoder_helper_add(encoder, &encoder_helper_funcs);
620
621 return 0;
622}
623
624void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable)
625{
626 unsigned long flags;
627 u32 ldintr;
628
629 /* Be careful not to acknowledge any pending interrupt. */
630 spin_lock_irqsave(&sdev->irq_lock, flags);
631 ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK;
632 if (enable)
633 ldintr |= LDINTR_VEE;
634 else
635 ldintr &= ~LDINTR_VEE;
636 lcdc_write(sdev, LDINTR, ldintr);
637 spin_unlock_irqrestore(&sdev->irq_lock, flags);
638}
639
640/* -----------------------------------------------------------------------------
641 * Connector
642 */
643
644#define to_shmob_connector(c) \
645 container_of(c, struct shmob_drm_connector, connector)
646
647static int shmob_drm_connector_get_modes(struct drm_connector *connector)
648{
649 struct shmob_drm_device *sdev = connector->dev->dev_private;
650 struct drm_display_mode *mode;
651
652 mode = drm_mode_create(connector->dev);
653 if (mode == NULL)
654 return 0;
655
656 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
657 mode->clock = sdev->pdata->panel.mode.clock;
658 mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
659 mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
660 mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
661 mode->htotal = sdev->pdata->panel.mode.htotal;
662 mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
663 mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
664 mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
665 mode->vtotal = sdev->pdata->panel.mode.vtotal;
666 mode->flags = sdev->pdata->panel.mode.flags;
667
668 drm_mode_set_name(mode);
669 drm_mode_probed_add(connector, mode);
670
671 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
672 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
673
674 return 1;
675}
676
677static int shmob_drm_connector_mode_valid(struct drm_connector *connector,
678 struct drm_display_mode *mode)
679{
680 return MODE_OK;
681}
682
683static struct drm_encoder *
684shmob_drm_connector_best_encoder(struct drm_connector *connector)
685{
686 struct shmob_drm_connector *scon = to_shmob_connector(connector);
687
688 return scon->encoder;
689}
690
691static const struct drm_connector_helper_funcs connector_helper_funcs = {
692 .get_modes = shmob_drm_connector_get_modes,
693 .mode_valid = shmob_drm_connector_mode_valid,
694 .best_encoder = shmob_drm_connector_best_encoder,
695};
696
697static void shmob_drm_connector_destroy(struct drm_connector *connector)
698{
699 struct shmob_drm_connector *scon = to_shmob_connector(connector);
700
701 shmob_drm_backlight_exit(scon);
702 drm_sysfs_connector_remove(connector);
703 drm_connector_cleanup(connector);
704}
705
706static enum drm_connector_status
707shmob_drm_connector_detect(struct drm_connector *connector, bool force)
708{
709 return connector_status_connected;
710}
711
712static const struct drm_connector_funcs connector_funcs = {
713 .dpms = drm_helper_connector_dpms,
714 .detect = shmob_drm_connector_detect,
715 .fill_modes = drm_helper_probe_single_connector_modes,
716 .destroy = shmob_drm_connector_destroy,
717};
718
719int shmob_drm_connector_create(struct shmob_drm_device *sdev,
720 struct drm_encoder *encoder)
721{
722 struct drm_connector *connector = &sdev->connector.connector;
723 int ret;
724
725 sdev->connector.encoder = encoder;
726
727 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
728 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
729
730 ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
731 DRM_MODE_CONNECTOR_LVDS);
732 if (ret < 0)
733 return ret;
734
735 drm_connector_helper_add(connector, &connector_helper_funcs);
736 ret = drm_sysfs_connector_add(connector);
737 if (ret < 0)
738 goto err_cleanup;
739
740 ret = shmob_drm_backlight_init(&sdev->connector);
741 if (ret < 0)
742 goto err_sysfs;
743
744 ret = drm_mode_connector_attach_encoder(connector, encoder);
745 if (ret < 0)
746 goto err_backlight;
747
748 connector->encoder = encoder;
749
750 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
751 drm_connector_property_set_value(connector,
752 sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
753
754 return 0;
755
756err_backlight:
757 shmob_drm_backlight_exit(&sdev->connector);
758err_sysfs:
759 drm_sysfs_connector_remove(connector);
760err_cleanup:
761 drm_connector_cleanup(connector);
762 return ret;
763}
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.h b/drivers/gpu/drm/shmobile/shmob_drm_crtc.h
new file mode 100644
index 000000000000..e5bd109c4c38
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_crtc.h
@@ -0,0 +1,60 @@
1/*
2 * shmob_drm_crtc.h -- SH Mobile DRM CRTCs
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __SHMOB_DRM_CRTC_H__
15#define __SHMOB_DRM_CRTC_H__
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc.h>
19
20struct backlight_device;
21struct shmob_drm_device;
22
23struct shmob_drm_crtc {
24 struct drm_crtc crtc;
25
26 struct drm_pending_vblank_event *event;
27 int dpms;
28
29 const struct shmob_drm_format_info *format;
30 void *cache;
31 unsigned long dma[2];
32 unsigned int line_size;
33 bool started;
34};
35
36struct shmob_drm_encoder {
37 struct drm_encoder encoder;
38 int dpms;
39};
40
41struct shmob_drm_connector {
42 struct drm_connector connector;
43 struct drm_encoder *encoder;
44
45 struct backlight_device *backlight;
46};
47
48int shmob_drm_crtc_create(struct shmob_drm_device *sdev);
49void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable);
50void shmob_drm_crtc_cancel_page_flip(struct shmob_drm_crtc *scrtc,
51 struct drm_file *file);
52void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc);
53void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc);
54void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc);
55
56int shmob_drm_encoder_create(struct shmob_drm_device *sdev);
57int shmob_drm_connector_create(struct shmob_drm_device *sdev,
58 struct drm_encoder *encoder);
59
60#endif /* __SHMOB_DRM_CRTC_H__ */
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
new file mode 100644
index 000000000000..c71d493fd0c5
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
@@ -0,0 +1,361 @@
1/*
2 * shmob_drm_drv.c -- SH Mobile DRM driver
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/clk.h>
15#include <linux/io.h>
16#include <linux/mm.h>
17#include <linux/module.h>
18#include <linux/platform_device.h>
19#include <linux/pm.h>
20#include <linux/slab.h>
21
22#include <drm/drmP.h>
23#include <drm/drm_crtc_helper.h>
24#include <drm/drm_gem_cma_helper.h>
25
26#include "shmob_drm_crtc.h"
27#include "shmob_drm_drv.h"
28#include "shmob_drm_kms.h"
29#include "shmob_drm_plane.h"
30#include "shmob_drm_regs.h"
31
32/* -----------------------------------------------------------------------------
33 * Hardware initialization
34 */
35
36static int __devinit shmob_drm_init_interface(struct shmob_drm_device *sdev)
37{
38 static const u32 ldmt1r[] = {
39 [SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8,
40 [SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9,
41 [SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A,
42 [SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B,
43 [SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16,
44 [SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18,
45 [SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24,
46 [SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR,
47 [SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A,
48 [SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B,
49 [SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C,
50 [SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D,
51 [SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9,
52 [SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12,
53 [SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A,
54 [SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B,
55 [SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C,
56 [SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18,
57 [SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24,
58 };
59
60 if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) {
61 dev_err(sdev->dev, "invalid interface type %u\n",
62 sdev->pdata->iface.interface);
63 return -EINVAL;
64 }
65
66 sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface];
67 return 0;
68}
69
70static int __devinit shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
71 enum shmob_drm_clk_source clksrc)
72{
73 struct clk *clk;
74 char *clkname;
75
76 switch (clksrc) {
77 case SHMOB_DRM_CLK_BUS:
78 clkname = "bus_clk";
79 sdev->lddckr = LDDCKR_ICKSEL_BUS;
80 break;
81 case SHMOB_DRM_CLK_PERIPHERAL:
82 clkname = "peripheral_clk";
83 sdev->lddckr = LDDCKR_ICKSEL_MIPI;
84 break;
85 case SHMOB_DRM_CLK_EXTERNAL:
86 clkname = NULL;
87 sdev->lddckr = LDDCKR_ICKSEL_HDMI;
88 break;
89 default:
90 return -EINVAL;
91 }
92
93 clk = clk_get(sdev->dev, clkname);
94 if (IS_ERR(clk)) {
95 dev_err(sdev->dev, "cannot get dot clock %s\n", clkname);
96 return PTR_ERR(clk);
97 }
98
99 sdev->clock = clk;
100 return 0;
101}
102
103/* -----------------------------------------------------------------------------
104 * DRM operations
105 */
106
107static int shmob_drm_unload(struct drm_device *dev)
108{
109 struct shmob_drm_device *sdev = dev->dev_private;
110
111 drm_kms_helper_poll_fini(dev);
112 drm_mode_config_cleanup(dev);
113 drm_vblank_cleanup(dev);
114 drm_irq_uninstall(dev);
115
116 if (sdev->clock)
117 clk_put(sdev->clock);
118
119 if (sdev->mmio)
120 iounmap(sdev->mmio);
121
122 dev->dev_private = NULL;
123 kfree(sdev);
124
125 return 0;
126}
127
128static int shmob_drm_load(struct drm_device *dev, unsigned long flags)
129{
130 struct shmob_drm_platform_data *pdata = dev->dev->platform_data;
131 struct platform_device *pdev = dev->platformdev;
132 struct shmob_drm_device *sdev;
133 struct resource *res;
134 unsigned int i;
135 int ret;
136
137 if (pdata == NULL) {
138 dev_err(dev->dev, "no platform data\n");
139 return -EINVAL;
140 }
141
142 sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
143 if (sdev == NULL) {
144 dev_err(dev->dev, "failed to allocate private data\n");
145 return -ENOMEM;
146 }
147
148 sdev->dev = &pdev->dev;
149 sdev->pdata = pdata;
150 spin_lock_init(&sdev->irq_lock);
151
152 sdev->ddev = dev;
153 dev->dev_private = sdev;
154
155 /* I/O resources and clocks */
156 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
157 if (res == NULL) {
158 dev_err(&pdev->dev, "failed to get memory resource\n");
159 ret = -EINVAL;
160 goto done;
161 }
162
163 sdev->mmio = ioremap_nocache(res->start, resource_size(res));
164 if (sdev->mmio == NULL) {
165 dev_err(&pdev->dev, "failed to remap memory resource\n");
166 ret = -ENOMEM;
167 goto done;
168 }
169
170 ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
171 if (ret < 0)
172 goto done;
173
174 ret = shmob_drm_init_interface(sdev);
175 if (ret < 0)
176 goto done;
177
178 ret = shmob_drm_modeset_init(sdev);
179 if (ret < 0) {
180 dev_err(&pdev->dev, "failed to initialize mode setting\n");
181 goto done;
182 }
183
184 for (i = 0; i < 4; ++i) {
185 ret = shmob_drm_plane_create(sdev, i);
186 if (ret < 0) {
187 dev_err(&pdev->dev, "failed to create plane %u\n", i);
188 goto done;
189 }
190 }
191
192 ret = drm_vblank_init(dev, 1);
193 if (ret < 0) {
194 dev_err(&pdev->dev, "failed to initialize vblank\n");
195 goto done;
196 }
197
198 ret = drm_irq_install(dev);
199 if (ret < 0) {
200 dev_err(&pdev->dev, "failed to install IRQ handler\n");
201 goto done;
202 }
203
204done:
205 if (ret)
206 shmob_drm_unload(dev);
207
208 return ret;
209}
210
211static void shmob_drm_preclose(struct drm_device *dev, struct drm_file *file)
212{
213 struct shmob_drm_device *sdev = dev->dev_private;
214
215 shmob_drm_crtc_cancel_page_flip(&sdev->crtc, file);
216}
217
218static irqreturn_t shmob_drm_irq(int irq, void *arg)
219{
220 struct drm_device *dev = arg;
221 struct shmob_drm_device *sdev = dev->dev_private;
222 unsigned long flags;
223 u32 status;
224
225 /* Acknowledge interrupts. Putting interrupt enable and interrupt flag
226 * bits in the same register is really brain-dead design and requires
227 * taking a spinlock.
228 */
229 spin_lock_irqsave(&sdev->irq_lock, flags);
230 status = lcdc_read(sdev, LDINTR);
231 lcdc_write(sdev, LDINTR, status ^ LDINTR_STATUS_MASK);
232 spin_unlock_irqrestore(&sdev->irq_lock, flags);
233
234 if (status & LDINTR_VES) {
235 drm_handle_vblank(dev, 0);
236 shmob_drm_crtc_finish_page_flip(&sdev->crtc);
237 }
238
239 return IRQ_HANDLED;
240}
241
242static int shmob_drm_enable_vblank(struct drm_device *dev, int crtc)
243{
244 struct shmob_drm_device *sdev = dev->dev_private;
245
246 shmob_drm_crtc_enable_vblank(sdev, true);
247
248 return 0;
249}
250
251static void shmob_drm_disable_vblank(struct drm_device *dev, int crtc)
252{
253 struct shmob_drm_device *sdev = dev->dev_private;
254
255 shmob_drm_crtc_enable_vblank(sdev, false);
256}
257
258static const struct file_operations shmob_drm_fops = {
259 .owner = THIS_MODULE,
260 .open = drm_open,
261 .release = drm_release,
262 .unlocked_ioctl = drm_ioctl,
263#ifdef CONFIG_COMPAT
264 .compat_ioctl = drm_compat_ioctl,
265#endif
266 .poll = drm_poll,
267 .read = drm_read,
268 .fasync = drm_fasync,
269 .llseek = no_llseek,
270 .mmap = drm_gem_cma_mmap,
271};
272
273static struct drm_driver shmob_drm_driver = {
274 .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET,
275 .load = shmob_drm_load,
276 .unload = shmob_drm_unload,
277 .preclose = shmob_drm_preclose,
278 .irq_handler = shmob_drm_irq,
279 .get_vblank_counter = drm_vblank_count,
280 .enable_vblank = shmob_drm_enable_vblank,
281 .disable_vblank = shmob_drm_disable_vblank,
282 .gem_free_object = drm_gem_cma_free_object,
283 .gem_vm_ops = &drm_gem_cma_vm_ops,
284 .dumb_create = drm_gem_cma_dumb_create,
285 .dumb_map_offset = drm_gem_cma_dumb_map_offset,
286 .dumb_destroy = drm_gem_cma_dumb_destroy,
287 .fops = &shmob_drm_fops,
288 .name = "shmob-drm",
289 .desc = "Renesas SH Mobile DRM",
290 .date = "20120424",
291 .major = 1,
292 .minor = 0,
293};
294
295/* -----------------------------------------------------------------------------
296 * Power management
297 */
298
299#if CONFIG_PM_SLEEP
300static int shmob_drm_pm_suspend(struct device *dev)
301{
302 struct platform_device *pdev = to_platform_device(dev);
303 struct drm_device *ddev = platform_get_drvdata(pdev);
304 struct shmob_drm_device *sdev = ddev->dev_private;
305
306 drm_kms_helper_poll_disable(ddev);
307 shmob_drm_crtc_suspend(&sdev->crtc);
308
309 return 0;
310}
311
312static int shmob_drm_pm_resume(struct device *dev)
313{
314 struct platform_device *pdev = to_platform_device(dev);
315 struct drm_device *ddev = platform_get_drvdata(pdev);
316 struct shmob_drm_device *sdev = ddev->dev_private;
317
318 mutex_lock(&sdev->ddev->mode_config.mutex);
319 shmob_drm_crtc_resume(&sdev->crtc);
320 mutex_unlock(&sdev->ddev->mode_config.mutex);
321
322 drm_kms_helper_poll_enable(sdev->ddev);
323 return 0;
324}
325#endif
326
327static const struct dev_pm_ops shmob_drm_pm_ops = {
328 SET_SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume)
329};
330
331/* -----------------------------------------------------------------------------
332 * Platform driver
333 */
334
335static int __devinit shmob_drm_probe(struct platform_device *pdev)
336{
337 return drm_platform_init(&shmob_drm_driver, pdev);
338}
339
340static int __devexit shmob_drm_remove(struct platform_device *pdev)
341{
342 drm_platform_exit(&shmob_drm_driver, pdev);
343
344 return 0;
345}
346
347static struct platform_driver shmob_drm_platform_driver = {
348 .probe = shmob_drm_probe,
349 .remove = __devexit_p(shmob_drm_remove),
350 .driver = {
351 .owner = THIS_MODULE,
352 .name = "shmob-drm",
353 .pm = &shmob_drm_pm_ops,
354 },
355};
356
357module_platform_driver(shmob_drm_platform_driver);
358
359MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
360MODULE_DESCRIPTION("Renesas SH Mobile DRM Driver");
361MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.h b/drivers/gpu/drm/shmobile/shmob_drm_drv.h
new file mode 100644
index 000000000000..4d46b811b5a7
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.h
@@ -0,0 +1,47 @@
1/*
2 * shmob_drm.h -- SH Mobile DRM driver
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __SHMOB_DRM_DRV_H__
15#define __SHMOB_DRM_DRV_H__
16
17#include <linux/kernel.h>
18#include <linux/platform_data/shmob_drm.h>
19#include <linux/spinlock.h>
20
21#include "shmob_drm_crtc.h"
22
23struct clk;
24struct device;
25struct drm_device;
26struct sh_mobile_meram_info;
27
28struct shmob_drm_device {
29 struct device *dev;
30 const struct shmob_drm_platform_data *pdata;
31
32 void __iomem *mmio;
33 struct clk *clock;
34 struct sh_mobile_meram_info *meram;
35 u32 lddckr;
36 u32 ldmt1r;
37
38 spinlock_t irq_lock; /* Protects hardware LDINTR register */
39
40 struct drm_device *ddev;
41
42 struct shmob_drm_crtc crtc;
43 struct shmob_drm_encoder encoder;
44 struct shmob_drm_connector connector;
45};
46
47#endif /* __SHMOB_DRM_DRV_H__ */
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/shmobile/shmob_drm_kms.c
new file mode 100644
index 000000000000..c291ee385b4f
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_kms.c
@@ -0,0 +1,160 @@
1/*
2 * shmob_drm_kms.c -- SH Mobile DRM Mode Setting
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <drm/drmP.h>
15#include <drm/drm_crtc.h>
16#include <drm/drm_crtc_helper.h>
17#include <drm/drm_fb_cma_helper.h>
18#include <drm/drm_gem_cma_helper.h>
19
20#include <video/sh_mobile_meram.h>
21
22#include "shmob_drm_crtc.h"
23#include "shmob_drm_drv.h"
24#include "shmob_drm_kms.h"
25#include "shmob_drm_regs.h"
26
27/* -----------------------------------------------------------------------------
28 * Format helpers
29 */
30
31static const struct shmob_drm_format_info shmob_drm_format_infos[] = {
32 {
33 .fourcc = DRM_FORMAT_RGB565,
34 .bpp = 16,
35 .yuv = false,
36 .lddfr = LDDFR_PKF_RGB16,
37 .meram = SH_MOBILE_MERAM_PF_RGB,
38 }, {
39 .fourcc = DRM_FORMAT_RGB888,
40 .bpp = 24,
41 .yuv = false,
42 .lddfr = LDDFR_PKF_RGB24,
43 .meram = SH_MOBILE_MERAM_PF_RGB,
44 }, {
45 .fourcc = DRM_FORMAT_ARGB8888,
46 .bpp = 32,
47 .yuv = false,
48 .lddfr = LDDFR_PKF_ARGB32,
49 .meram = SH_MOBILE_MERAM_PF_RGB,
50 }, {
51 .fourcc = DRM_FORMAT_NV12,
52 .bpp = 12,
53 .yuv = true,
54 .lddfr = LDDFR_CC | LDDFR_YF_420,
55 .meram = SH_MOBILE_MERAM_PF_NV,
56 }, {
57 .fourcc = DRM_FORMAT_NV21,
58 .bpp = 12,
59 .yuv = true,
60 .lddfr = LDDFR_CC | LDDFR_YF_420,
61 .meram = SH_MOBILE_MERAM_PF_NV,
62 }, {
63 .fourcc = DRM_FORMAT_NV16,
64 .bpp = 16,
65 .yuv = true,
66 .lddfr = LDDFR_CC | LDDFR_YF_422,
67 .meram = SH_MOBILE_MERAM_PF_NV,
68 }, {
69 .fourcc = DRM_FORMAT_NV61,
70 .bpp = 16,
71 .yuv = true,
72 .lddfr = LDDFR_CC | LDDFR_YF_422,
73 .meram = SH_MOBILE_MERAM_PF_NV,
74 }, {
75 .fourcc = DRM_FORMAT_NV24,
76 .bpp = 24,
77 .yuv = true,
78 .lddfr = LDDFR_CC | LDDFR_YF_444,
79 .meram = SH_MOBILE_MERAM_PF_NV24,
80 }, {
81 .fourcc = DRM_FORMAT_NV42,
82 .bpp = 24,
83 .yuv = true,
84 .lddfr = LDDFR_CC | LDDFR_YF_444,
85 .meram = SH_MOBILE_MERAM_PF_NV24,
86 },
87};
88
89const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc)
90{
91 unsigned int i;
92
93 for (i = 0; i < ARRAY_SIZE(shmob_drm_format_infos); ++i) {
94 if (shmob_drm_format_infos[i].fourcc == fourcc)
95 return &shmob_drm_format_infos[i];
96 }
97
98 return NULL;
99}
100
101/* -----------------------------------------------------------------------------
102 * Frame buffer
103 */
104
105static struct drm_framebuffer *
106shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv,
107 struct drm_mode_fb_cmd2 *mode_cmd)
108{
109 const struct shmob_drm_format_info *format;
110
111 format = shmob_drm_format_info(mode_cmd->pixel_format);
112 if (format == NULL) {
113 dev_dbg(dev->dev, "unsupported pixel format %08x\n",
114 mode_cmd->pixel_format);
115 return ERR_PTR(-EINVAL);
116 }
117
118 if (mode_cmd->pitches[0] & 7 || mode_cmd->pitches[0] >= 65536) {
119 dev_dbg(dev->dev, "valid pitch value %u\n",
120 mode_cmd->pitches[0]);
121 return ERR_PTR(-EINVAL);
122 }
123
124 if (format->yuv) {
125 unsigned int chroma_cpp = format->bpp == 24 ? 2 : 1;
126
127 if (mode_cmd->pitches[1] != mode_cmd->pitches[0] * chroma_cpp) {
128 dev_dbg(dev->dev,
129 "luma and chroma pitches do not match\n");
130 return ERR_PTR(-EINVAL);
131 }
132 }
133
134 return drm_fb_cma_create(dev, file_priv, mode_cmd);
135}
136
137static const struct drm_mode_config_funcs shmob_drm_mode_config_funcs = {
138 .fb_create = shmob_drm_fb_create,
139};
140
141int shmob_drm_modeset_init(struct shmob_drm_device *sdev)
142{
143 drm_mode_config_init(sdev->ddev);
144
145 shmob_drm_crtc_create(sdev);
146 shmob_drm_encoder_create(sdev);
147 shmob_drm_connector_create(sdev, &sdev->encoder.encoder);
148
149 drm_kms_helper_poll_init(sdev->ddev);
150
151 sdev->ddev->mode_config.min_width = 0;
152 sdev->ddev->mode_config.min_height = 0;
153 sdev->ddev->mode_config.max_width = 4095;
154 sdev->ddev->mode_config.max_height = 4095;
155 sdev->ddev->mode_config.funcs = &shmob_drm_mode_config_funcs;
156
157 drm_helper_disable_unused_functions(sdev->ddev);
158
159 return 0;
160}
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_kms.h b/drivers/gpu/drm/shmobile/shmob_drm_kms.h
new file mode 100644
index 000000000000..9495c9111308
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_kms.h
@@ -0,0 +1,34 @@
1/*
2 * shmob_drm_kms.h -- SH Mobile DRM Mode Setting
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __SHMOB_DRM_KMS_H__
15#define __SHMOB_DRM_KMS_H__
16
17#include <linux/types.h>
18
19struct drm_gem_cma_object;
20struct shmob_drm_device;
21
22struct shmob_drm_format_info {
23 u32 fourcc;
24 unsigned int bpp;
25 bool yuv;
26 u32 lddfr;
27 unsigned int meram;
28};
29
30const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc);
31
32int shmob_drm_modeset_init(struct shmob_drm_device *sdev);
33
34#endif /* __SHMOB_DRM_KMS_H__ */
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/shmobile/shmob_drm_plane.c
new file mode 100644
index 000000000000..e1eb899b0288
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_plane.c
@@ -0,0 +1,268 @@
1/*
2 * shmob_drm_plane.c -- SH Mobile DRM Planes
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <drm/drmP.h>
15#include <drm/drm_crtc.h>
16#include <drm/drm_crtc_helper.h>
17#include <drm/drm_fb_cma_helper.h>
18#include <drm/drm_gem_cma_helper.h>
19
20#include <video/sh_mobile_meram.h>
21
22#include "shmob_drm_drv.h"
23#include "shmob_drm_kms.h"
24#include "shmob_drm_plane.h"
25#include "shmob_drm_regs.h"
26
27struct shmob_drm_plane {
28 struct drm_plane plane;
29 unsigned int index;
30 unsigned int alpha;
31
32 const struct shmob_drm_format_info *format;
33 unsigned long dma[2];
34
35 unsigned int src_x;
36 unsigned int src_y;
37 unsigned int crtc_x;
38 unsigned int crtc_y;
39 unsigned int crtc_w;
40 unsigned int crtc_h;
41};
42
43#define to_shmob_plane(p) container_of(p, struct shmob_drm_plane, plane)
44
45static void shmob_drm_plane_compute_base(struct shmob_drm_plane *splane,
46 struct drm_framebuffer *fb,
47 int x, int y)
48{
49 struct drm_gem_cma_object *gem;
50 unsigned int bpp;
51
52 bpp = splane->format->yuv ? 8 : splane->format->bpp;
53 gem = drm_fb_cma_get_gem_obj(fb, 0);
54 splane->dma[0] = gem->paddr + fb->offsets[0]
55 + y * fb->pitches[0] + x * bpp / 8;
56
57 if (splane->format->yuv) {
58 bpp = splane->format->bpp - 8;
59 gem = drm_fb_cma_get_gem_obj(fb, 1);
60 splane->dma[1] = gem->paddr + fb->offsets[1]
61 + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
62 + x * (bpp == 16 ? 2 : 1);
63 }
64}
65
66static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
67 struct drm_framebuffer *fb)
68{
69 struct shmob_drm_device *sdev = splane->plane.dev->dev_private;
70 u32 format;
71
72 /* TODO: Support ROP3 mode */
73 format = LDBBSIFR_EN | (splane->alpha << LDBBSIFR_LAY_SHIFT);
74
75 switch (splane->format->fourcc) {
76 case DRM_FORMAT_RGB565:
77 case DRM_FORMAT_NV21:
78 case DRM_FORMAT_NV61:
79 case DRM_FORMAT_NV42:
80 format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW;
81 break;
82 case DRM_FORMAT_RGB888:
83 case DRM_FORMAT_NV12:
84 case DRM_FORMAT_NV16:
85 case DRM_FORMAT_NV24:
86 format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW | LDBBSIFR_SWPB;
87 break;
88 case DRM_FORMAT_ARGB8888:
89 default:
90 format |= LDBBSIFR_SWPL;
91 break;
92 }
93
94 switch (splane->format->fourcc) {
95 case DRM_FORMAT_RGB565:
96 format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB16;
97 break;
98 case DRM_FORMAT_RGB888:
99 format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB24;
100 break;
101 case DRM_FORMAT_ARGB8888:
102 format |= LDBBSIFR_AL_PK | LDBBSIFR_RY | LDDFR_PKF_ARGB32;
103 break;
104 case DRM_FORMAT_NV12:
105 case DRM_FORMAT_NV21:
106 format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_420;
107 break;
108 case DRM_FORMAT_NV16:
109 case DRM_FORMAT_NV61:
110 format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_422;
111 break;
112 case DRM_FORMAT_NV24:
113 case DRM_FORMAT_NV42:
114 format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_444;
115 break;
116 }
117
118#define plane_reg_dump(sdev, splane, reg) \
119 dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x 0x%08x\n", __func__, \
120 splane->index, #reg, \
121 lcdc_read(sdev, reg(splane->index)), \
122 lcdc_read(sdev, reg(splane->index) + LCDC_SIDE_B_OFFSET))
123
124 plane_reg_dump(sdev, splane, LDBnBSIFR);
125 plane_reg_dump(sdev, splane, LDBnBSSZR);
126 plane_reg_dump(sdev, splane, LDBnBLOCR);
127 plane_reg_dump(sdev, splane, LDBnBSMWR);
128 plane_reg_dump(sdev, splane, LDBnBSAYR);
129 plane_reg_dump(sdev, splane, LDBnBSACR);
130
131 lcdc_write(sdev, LDBCR, LDBCR_UPC(splane->index));
132 dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
133 "LDBCR", lcdc_read(sdev, LDBCR));
134
135 lcdc_write(sdev, LDBnBSIFR(splane->index), format);
136
137 lcdc_write(sdev, LDBnBSSZR(splane->index),
138 (splane->crtc_h << LDBBSSZR_BVSS_SHIFT) |
139 (splane->crtc_w << LDBBSSZR_BHSS_SHIFT));
140 lcdc_write(sdev, LDBnBLOCR(splane->index),
141 (splane->crtc_y << LDBBLOCR_CVLC_SHIFT) |
142 (splane->crtc_x << LDBBLOCR_CHLC_SHIFT));
143 lcdc_write(sdev, LDBnBSMWR(splane->index),
144 fb->pitches[0] << LDBBSMWR_BSMW_SHIFT);
145
146 shmob_drm_plane_compute_base(splane, fb, splane->src_x, splane->src_y);
147
148 lcdc_write(sdev, LDBnBSAYR(splane->index), splane->dma[0]);
149 if (splane->format->yuv)
150 lcdc_write(sdev, LDBnBSACR(splane->index), splane->dma[1]);
151
152 lcdc_write(sdev, LDBCR,
153 LDBCR_UPF(splane->index) | LDBCR_UPD(splane->index));
154 dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
155 "LDBCR", lcdc_read(sdev, LDBCR));
156
157 plane_reg_dump(sdev, splane, LDBnBSIFR);
158 plane_reg_dump(sdev, splane, LDBnBSSZR);
159 plane_reg_dump(sdev, splane, LDBnBLOCR);
160 plane_reg_dump(sdev, splane, LDBnBSMWR);
161 plane_reg_dump(sdev, splane, LDBnBSAYR);
162 plane_reg_dump(sdev, splane, LDBnBSACR);
163}
164
165void shmob_drm_plane_setup(struct drm_plane *plane)
166{
167 struct shmob_drm_plane *splane = to_shmob_plane(plane);
168
169 if (plane->fb == NULL || !plane->enabled)
170 return;
171
172 __shmob_drm_plane_setup(splane, plane->fb);
173}
174
175static int
176shmob_drm_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
177 struct drm_framebuffer *fb, int crtc_x, int crtc_y,
178 unsigned int crtc_w, unsigned int crtc_h,
179 uint32_t src_x, uint32_t src_y,
180 uint32_t src_w, uint32_t src_h)
181{
182 struct shmob_drm_plane *splane = to_shmob_plane(plane);
183 struct shmob_drm_device *sdev = plane->dev->dev_private;
184 const struct shmob_drm_format_info *format;
185
186 format = shmob_drm_format_info(fb->pixel_format);
187 if (format == NULL) {
188 dev_dbg(sdev->dev, "update_plane: unsupported format %08x\n",
189 fb->pixel_format);
190 return -EINVAL;
191 }
192
193 if (src_w >> 16 != crtc_w || src_h >> 16 != crtc_h) {
194 dev_dbg(sdev->dev, "%s: scaling not supported\n", __func__);
195 return -EINVAL;
196 }
197
198 splane->format = format;
199
200 splane->src_x = src_x >> 16;
201 splane->src_y = src_y >> 16;
202 splane->crtc_x = crtc_x;
203 splane->crtc_y = crtc_y;
204 splane->crtc_w = crtc_w;
205 splane->crtc_h = crtc_h;
206
207 __shmob_drm_plane_setup(splane, fb);
208 return 0;
209}
210
211static int shmob_drm_plane_disable(struct drm_plane *plane)
212{
213 struct shmob_drm_plane *splane = to_shmob_plane(plane);
214 struct shmob_drm_device *sdev = plane->dev->dev_private;
215
216 splane->format = NULL;
217
218 lcdc_write(sdev, LDBnBSIFR(splane->index), 0);
219 return 0;
220}
221
222static void shmob_drm_plane_destroy(struct drm_plane *plane)
223{
224 struct shmob_drm_plane *splane = to_shmob_plane(plane);
225
226 shmob_drm_plane_disable(plane);
227 drm_plane_cleanup(plane);
228 kfree(splane);
229}
230
231static const struct drm_plane_funcs shmob_drm_plane_funcs = {
232 .update_plane = shmob_drm_plane_update,
233 .disable_plane = shmob_drm_plane_disable,
234 .destroy = shmob_drm_plane_destroy,
235};
236
237static const uint32_t formats[] = {
238 DRM_FORMAT_RGB565,
239 DRM_FORMAT_RGB888,
240 DRM_FORMAT_ARGB8888,
241 DRM_FORMAT_NV12,
242 DRM_FORMAT_NV21,
243 DRM_FORMAT_NV16,
244 DRM_FORMAT_NV61,
245 DRM_FORMAT_NV24,
246 DRM_FORMAT_NV42,
247};
248
249int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index)
250{
251 struct shmob_drm_plane *splane;
252 int ret;
253
254 splane = kzalloc(sizeof(*splane), GFP_KERNEL);
255 if (splane == NULL)
256 return -ENOMEM;
257
258 splane->index = index;
259 splane->alpha = 255;
260
261 ret = drm_plane_init(sdev->ddev, &splane->plane, 1,
262 &shmob_drm_plane_funcs, formats,
263 ARRAY_SIZE(formats), false);
264 if (ret < 0)
265 kfree(splane);
266
267 return ret;
268}
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_plane.h b/drivers/gpu/drm/shmobile/shmob_drm_plane.h
new file mode 100644
index 000000000000..99623d05e3b0
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_plane.h
@@ -0,0 +1,22 @@
1/*
2 * shmob_drm_plane.h -- SH Mobile DRM Planes
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __SHMOB_DRM_PLANE_H__
15#define __SHMOB_DRM_PLANE_H__
16
17struct shmob_drm_device;
18
19int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index);
20void shmob_drm_plane_setup(struct drm_plane *plane);
21
22#endif /* __SHMOB_DRM_PLANE_H__ */
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_regs.h b/drivers/gpu/drm/shmobile/shmob_drm_regs.h
new file mode 100644
index 000000000000..7923cdd6368e
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_regs.h
@@ -0,0 +1,311 @@
1/*
2 * shmob_drm_regs.h -- SH Mobile DRM registers
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __SHMOB_DRM_REGS_H__
15#define __SHMOB_DRM_REGS_H__
16
17#include <linux/io.h>
18
19/* Register definitions */
20#define LDDCKPAT1R 0x400
21#define LDDCKPAT2R 0x404
22#define LDDCKR 0x410
23#define LDDCKR_ICKSEL_BUS (0 << 16)
24#define LDDCKR_ICKSEL_MIPI (1 << 16)
25#define LDDCKR_ICKSEL_HDMI (2 << 16)
26#define LDDCKR_ICKSEL_EXT (3 << 16)
27#define LDDCKR_ICKSEL_MASK (7 << 16)
28#define LDDCKR_MOSEL (1 << 6)
29#define LDDCKSTPR 0x414
30#define LDDCKSTPR_DCKSTS (1 << 16)
31#define LDDCKSTPR_DCKSTP (1 << 0)
32#define LDMT1R 0x418
33#define LDMT1R_VPOL (1 << 28)
34#define LDMT1R_HPOL (1 << 27)
35#define LDMT1R_DWPOL (1 << 26)
36#define LDMT1R_DIPOL (1 << 25)
37#define LDMT1R_DAPOL (1 << 24)
38#define LDMT1R_HSCNT (1 << 17)
39#define LDMT1R_DWCNT (1 << 16)
40#define LDMT1R_IFM (1 << 12)
41#define LDMT1R_MIFTYP_RGB8 (0x0 << 0)
42#define LDMT1R_MIFTYP_RGB9 (0x4 << 0)
43#define LDMT1R_MIFTYP_RGB12A (0x5 << 0)
44#define LDMT1R_MIFTYP_RGB12B (0x6 << 0)
45#define LDMT1R_MIFTYP_RGB16 (0x7 << 0)
46#define LDMT1R_MIFTYP_RGB18 (0xa << 0)
47#define LDMT1R_MIFTYP_RGB24 (0xb << 0)
48#define LDMT1R_MIFTYP_YCBCR (0xf << 0)
49#define LDMT1R_MIFTYP_SYS8A (0x0 << 0)
50#define LDMT1R_MIFTYP_SYS8B (0x1 << 0)
51#define LDMT1R_MIFTYP_SYS8C (0x2 << 0)
52#define LDMT1R_MIFTYP_SYS8D (0x3 << 0)
53#define LDMT1R_MIFTYP_SYS9 (0x4 << 0)
54#define LDMT1R_MIFTYP_SYS12 (0x5 << 0)
55#define LDMT1R_MIFTYP_SYS16A (0x7 << 0)
56#define LDMT1R_MIFTYP_SYS16B (0x8 << 0)
57#define LDMT1R_MIFTYP_SYS16C (0x9 << 0)
58#define LDMT1R_MIFTYP_SYS18 (0xa << 0)
59#define LDMT1R_MIFTYP_SYS24 (0xb << 0)
60#define LDMT1R_MIFTYP_MASK (0xf << 0)
61#define LDMT2R 0x41c
62#define LDMT2R_CSUP_MASK (7 << 26)
63#define LDMT2R_CSUP_SHIFT 26
64#define LDMT2R_RSV (1 << 25)
65#define LDMT2R_VSEL (1 << 24)
66#define LDMT2R_WCSC_MASK (0xff << 16)
67#define LDMT2R_WCSC_SHIFT 16
68#define LDMT2R_WCEC_MASK (0xff << 8)
69#define LDMT2R_WCEC_SHIFT 8
70#define LDMT2R_WCLW_MASK (0xff << 0)
71#define LDMT2R_WCLW_SHIFT 0
72#define LDMT3R 0x420
73#define LDMT3R_RDLC_MASK (0x3f << 24)
74#define LDMT3R_RDLC_SHIFT 24
75#define LDMT3R_RCSC_MASK (0xff << 16)
76#define LDMT3R_RCSC_SHIFT 16
77#define LDMT3R_RCEC_MASK (0xff << 8)
78#define LDMT3R_RCEC_SHIFT 8
79#define LDMT3R_RCLW_MASK (0xff << 0)
80#define LDMT3R_RCLW_SHIFT 0
81#define LDDFR 0x424
82#define LDDFR_CF1 (1 << 18)
83#define LDDFR_CF0 (1 << 17)
84#define LDDFR_CC (1 << 16)
85#define LDDFR_YF_420 (0 << 8)
86#define LDDFR_YF_422 (1 << 8)
87#define LDDFR_YF_444 (2 << 8)
88#define LDDFR_YF_MASK (3 << 8)
89#define LDDFR_PKF_ARGB32 (0x00 << 0)
90#define LDDFR_PKF_RGB16 (0x03 << 0)
91#define LDDFR_PKF_RGB24 (0x0b << 0)
92#define LDDFR_PKF_MASK (0x1f << 0)
93#define LDSM1R 0x428
94#define LDSM1R_OS (1 << 0)
95#define LDSM2R 0x42c
96#define LDSM2R_OSTRG (1 << 0)
97#define LDSA1R 0x430
98#define LDSA2R 0x434
99#define LDMLSR 0x438
100#define LDWBFR 0x43c
101#define LDWBCNTR 0x440
102#define LDWBAR 0x444
103#define LDHCNR 0x448
104#define LDHSYNR 0x44c
105#define LDVLNR 0x450
106#define LDVSYNR 0x454
107#define LDHPDR 0x458
108#define LDVPDR 0x45c
109#define LDPMR 0x460
110#define LDPMR_LPS (3 << 0)
111#define LDINTR 0x468
112#define LDINTR_FE (1 << 10)
113#define LDINTR_VSE (1 << 9)
114#define LDINTR_VEE (1 << 8)
115#define LDINTR_FS (1 << 2)
116#define LDINTR_VSS (1 << 1)
117#define LDINTR_VES (1 << 0)
118#define LDINTR_STATUS_MASK (0xff << 0)
119#define LDSR 0x46c
120#define LDSR_MSS (1 << 10)
121#define LDSR_MRS (1 << 8)
122#define LDSR_AS (1 << 1)
123#define LDCNT1R 0x470
124#define LDCNT1R_DE (1 << 0)
125#define LDCNT2R 0x474
126#define LDCNT2R_BR (1 << 8)
127#define LDCNT2R_MD (1 << 3)
128#define LDCNT2R_SE (1 << 2)
129#define LDCNT2R_ME (1 << 1)
130#define LDCNT2R_DO (1 << 0)
131#define LDRCNTR 0x478
132#define LDRCNTR_SRS (1 << 17)
133#define LDRCNTR_SRC (1 << 16)
134#define LDRCNTR_MRS (1 << 1)
135#define LDRCNTR_MRC (1 << 0)
136#define LDDDSR 0x47c
137#define LDDDSR_LS (1 << 2)
138#define LDDDSR_WS (1 << 1)
139#define LDDDSR_BS (1 << 0)
140#define LDHAJR 0x4a0
141
142#define LDDWD0R 0x800
143#define LDDWDxR_WDACT (1 << 28)
144#define LDDWDxR_RSW (1 << 24)
145#define LDDRDR 0x840
146#define LDDRDR_RSR (1 << 24)
147#define LDDRDR_DRD_MASK (0x3ffff << 0)
148#define LDDWAR 0x900
149#define LDDWAR_WA (1 << 0)
150#define LDDRAR 0x904
151#define LDDRAR_RA (1 << 0)
152
153#define LDBCR 0xb00
154#define LDBCR_UPC(n) (1 << ((n) + 16))
155#define LDBCR_UPF(n) (1 << ((n) + 8))
156#define LDBCR_UPD(n) (1 << ((n) + 0))
157#define LDBnBSIFR(n) (0xb20 + (n) * 0x20 + 0x00)
158#define LDBBSIFR_EN (1 << 31)
159#define LDBBSIFR_VS (1 << 29)
160#define LDBBSIFR_BRSEL (1 << 28)
161#define LDBBSIFR_MX (1 << 27)
162#define LDBBSIFR_MY (1 << 26)
163#define LDBBSIFR_CV3 (3 << 24)
164#define LDBBSIFR_CV2 (2 << 24)
165#define LDBBSIFR_CV1 (1 << 24)
166#define LDBBSIFR_CV0 (0 << 24)
167#define LDBBSIFR_CV_MASK (3 << 24)
168#define LDBBSIFR_LAY_MASK (0xff << 16)
169#define LDBBSIFR_LAY_SHIFT 16
170#define LDBBSIFR_ROP3_MASK (0xff << 16)
171#define LDBBSIFR_ROP3_SHIFT 16
172#define LDBBSIFR_AL_PL8 (3 << 14)
173#define LDBBSIFR_AL_PL1 (2 << 14)
174#define LDBBSIFR_AL_PK (1 << 14)
175#define LDBBSIFR_AL_1 (0 << 14)
176#define LDBBSIFR_AL_MASK (3 << 14)
177#define LDBBSIFR_SWPL (1 << 10)
178#define LDBBSIFR_SWPW (1 << 9)
179#define LDBBSIFR_SWPB (1 << 8)
180#define LDBBSIFR_RY (1 << 7)
181#define LDBBSIFR_CHRR_420 (2 << 0)
182#define LDBBSIFR_CHRR_422 (1 << 0)
183#define LDBBSIFR_CHRR_444 (0 << 0)
184#define LDBBSIFR_RPKF_ARGB32 (0x00 << 0)
185#define LDBBSIFR_RPKF_RGB16 (0x03 << 0)
186#define LDBBSIFR_RPKF_RGB24 (0x0b << 0)
187#define LDBBSIFR_RPKF_MASK (0x1f << 0)
188#define LDBnBSSZR(n) (0xb20 + (n) * 0x20 + 0x04)
189#define LDBBSSZR_BVSS_MASK (0xfff << 16)
190#define LDBBSSZR_BVSS_SHIFT 16
191#define LDBBSSZR_BHSS_MASK (0xfff << 0)
192#define LDBBSSZR_BHSS_SHIFT 0
193#define LDBnBLOCR(n) (0xb20 + (n) * 0x20 + 0x08)
194#define LDBBLOCR_CVLC_MASK (0xfff << 16)
195#define LDBBLOCR_CVLC_SHIFT 16
196#define LDBBLOCR_CHLC_MASK (0xfff << 0)
197#define LDBBLOCR_CHLC_SHIFT 0
198#define LDBnBSMWR(n) (0xb20 + (n) * 0x20 + 0x0c)
199#define LDBBSMWR_BSMWA_MASK (0xffff << 16)
200#define LDBBSMWR_BSMWA_SHIFT 16
201#define LDBBSMWR_BSMW_MASK (0xffff << 0)
202#define LDBBSMWR_BSMW_SHIFT 0
203#define LDBnBSAYR(n) (0xb20 + (n) * 0x20 + 0x10)
204#define LDBBSAYR_FG1A_MASK (0xff << 24)
205#define LDBBSAYR_FG1A_SHIFT 24
206#define LDBBSAYR_FG1R_MASK (0xff << 16)
207#define LDBBSAYR_FG1R_SHIFT 16
208#define LDBBSAYR_FG1G_MASK (0xff << 8)
209#define LDBBSAYR_FG1G_SHIFT 8
210#define LDBBSAYR_FG1B_MASK (0xff << 0)
211#define LDBBSAYR_FG1B_SHIFT 0
212#define LDBnBSACR(n) (0xb20 + (n) * 0x20 + 0x14)
213#define LDBBSACR_FG2A_MASK (0xff << 24)
214#define LDBBSACR_FG2A_SHIFT 24
215#define LDBBSACR_FG2R_MASK (0xff << 16)
216#define LDBBSACR_FG2R_SHIFT 16
217#define LDBBSACR_FG2G_MASK (0xff << 8)
218#define LDBBSACR_FG2G_SHIFT 8
219#define LDBBSACR_FG2B_MASK (0xff << 0)
220#define LDBBSACR_FG2B_SHIFT 0
221#define LDBnBSAAR(n) (0xb20 + (n) * 0x20 + 0x18)
222#define LDBBSAAR_AP_MASK (0xff << 24)
223#define LDBBSAAR_AP_SHIFT 24
224#define LDBBSAAR_R_MASK (0xff << 16)
225#define LDBBSAAR_R_SHIFT 16
226#define LDBBSAAR_GY_MASK (0xff << 8)
227#define LDBBSAAR_GY_SHIFT 8
228#define LDBBSAAR_B_MASK (0xff << 0)
229#define LDBBSAAR_B_SHIFT 0
230#define LDBnBPPCR(n) (0xb20 + (n) * 0x20 + 0x1c)
231#define LDBBPPCR_AP_MASK (0xff << 24)
232#define LDBBPPCR_AP_SHIFT 24
233#define LDBBPPCR_R_MASK (0xff << 16)
234#define LDBBPPCR_R_SHIFT 16
235#define LDBBPPCR_GY_MASK (0xff << 8)
236#define LDBBPPCR_GY_SHIFT 8
237#define LDBBPPCR_B_MASK (0xff << 0)
238#define LDBBPPCR_B_SHIFT 0
239#define LDBnBBGCL(n) (0xb10 + (n) * 0x04)
240#define LDBBBGCL_BGA_MASK (0xff << 24)
241#define LDBBBGCL_BGA_SHIFT 24
242#define LDBBBGCL_BGR_MASK (0xff << 16)
243#define LDBBBGCL_BGR_SHIFT 16
244#define LDBBBGCL_BGG_MASK (0xff << 8)
245#define LDBBBGCL_BGG_SHIFT 8
246#define LDBBBGCL_BGB_MASK (0xff << 0)
247#define LDBBBGCL_BGB_SHIFT 0
248
249#define LCDC_SIDE_B_OFFSET 0x1000
250#define LCDC_MIRROR_OFFSET 0x2000
251
252static inline bool lcdc_is_banked(u32 reg)
253{
254 switch (reg) {
255 case LDMT1R:
256 case LDMT2R:
257 case LDMT3R:
258 case LDDFR:
259 case LDSM1R:
260 case LDSA1R:
261 case LDSA2R:
262 case LDMLSR:
263 case LDWBFR:
264 case LDWBCNTR:
265 case LDWBAR:
266 case LDHCNR:
267 case LDHSYNR:
268 case LDVLNR:
269 case LDVSYNR:
270 case LDHPDR:
271 case LDVPDR:
272 case LDHAJR:
273 return true;
274 default:
275 return reg >= LDBnBBGCL(0) && reg <= LDBnBPPCR(3);
276 }
277}
278
279static inline void lcdc_write_mirror(struct shmob_drm_device *sdev, u32 reg,
280 u32 data)
281{
282 iowrite32(data, sdev->mmio + reg + LCDC_MIRROR_OFFSET);
283}
284
285static inline void lcdc_write(struct shmob_drm_device *sdev, u32 reg, u32 data)
286{
287 iowrite32(data, sdev->mmio + reg);
288 if (lcdc_is_banked(reg))
289 iowrite32(data, sdev->mmio + reg + LCDC_SIDE_B_OFFSET);
290}
291
292static inline u32 lcdc_read(struct shmob_drm_device *sdev, u32 reg)
293{
294 return ioread32(sdev->mmio + reg);
295}
296
297static inline int lcdc_wait_bit(struct shmob_drm_device *sdev, u32 reg,
298 u32 mask, u32 until)
299{
300 unsigned long timeout = jiffies + msecs_to_jiffies(5);
301
302 while ((lcdc_read(sdev, reg) & mask) != until) {
303 if (time_after(jiffies, timeout))
304 return -ETIMEDOUT;
305 cpu_relax();
306 }
307
308 return 0;
309}
310
311#endif /* __SHMOB_DRM_REGS_H__ */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 617d87ae2b1a..316ce64e5590 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -590,6 +590,7 @@ struct drm_connector {
590 int video_latency[2]; /* [0]: progressive, [1]: interlaced */ 590 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
591 int audio_latency[2]; 591 int audio_latency[2];
592 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */ 592 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
593 unsigned bad_edid_counter;
593}; 594};
594 595
595/** 596/**
@@ -1032,7 +1033,7 @@ extern int drm_add_modes_noedid(struct drm_connector *connector,
1032 int hdisplay, int vdisplay); 1033 int hdisplay, int vdisplay);
1033 1034
1034extern int drm_edid_header_is_valid(const u8 *raw_edid); 1035extern int drm_edid_header_is_valid(const u8 *raw_edid);
1035extern bool drm_edid_block_valid(u8 *raw_edid, int block); 1036extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
1036extern bool drm_edid_is_valid(struct edid *edid); 1037extern bool drm_edid_is_valid(struct edid *edid);
1037struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, 1038struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1038 int hsize, int vsize, int fresh, 1039 int hsize, int vsize, int fresh,
diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h
new file mode 100644
index 000000000000..76c709837543
--- /dev/null
+++ b/include/drm/drm_fb_cma_helper.h
@@ -0,0 +1,27 @@
1#ifndef __DRM_FB_CMA_HELPER_H__
2#define __DRM_FB_CMA_HELPER_H__
3
4struct drm_fbdev_cma;
5struct drm_gem_cma_object;
6
7struct drm_framebuffer;
8struct drm_device;
9struct drm_file;
10struct drm_mode_fb_cmd2;
11
12struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
13 unsigned int preferred_bpp, unsigned int num_crtc,
14 unsigned int max_conn_count);
15void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma);
16
17void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);
18void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);
19
20struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
21 struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd);
22
23struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
24 unsigned int plane);
25
26#endif
27
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
index bdf0152cbbe9..fac7235281f1 100644
--- a/include/drm/drm_fourcc.h
+++ b/include/drm/drm_fourcc.h
@@ -106,6 +106,8 @@
106#define DRM_FORMAT_NV21 fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */ 106#define DRM_FORMAT_NV21 fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
107#define DRM_FORMAT_NV16 fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */ 107#define DRM_FORMAT_NV16 fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
108#define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */ 108#define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
109#define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
110#define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
109 111
110/* 2 non contiguous plane YCbCr */ 112/* 2 non contiguous plane YCbCr */
111#define DRM_FORMAT_NV12M fourcc_code('N', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane */ 113#define DRM_FORMAT_NV12M fourcc_code('N', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane */
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
new file mode 100644
index 000000000000..f0f6b1af25ad
--- /dev/null
+++ b/include/drm/drm_gem_cma_helper.h
@@ -0,0 +1,44 @@
1#ifndef __DRM_GEM_CMA_HELPER_H__
2#define __DRM_GEM_CMA_HELPER_H__
3
4struct drm_gem_cma_object {
5 struct drm_gem_object base;
6 dma_addr_t paddr;
7 void *vaddr;
8};
9
10static inline struct drm_gem_cma_object *
11to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
12{
13 return container_of(gem_obj, struct drm_gem_cma_object, base);
14}
15
16/* free gem object. */
17void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
18
19/* create memory region for drm framebuffer. */
20int drm_gem_cma_dumb_create(struct drm_file *file_priv,
21 struct drm_device *drm, struct drm_mode_create_dumb *args);
22
23/* map memory region for drm framebuffer to user space. */
24int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
25 struct drm_device *drm, uint32_t handle, uint64_t *offset);
26
27/* set vm_flags and we can change the vm attribute to other one at here. */
28int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
29
30/*
31 * destroy memory region allocated.
32 * - a gem handle and physical memory region pointed by a gem object
33 * would be released by drm_gem_handle_delete().
34 */
35int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
36 struct drm_device *drm, unsigned int handle);
37
38/* allocate physical memory. */
39struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
40 unsigned int size);
41
42extern const struct vm_operations_struct drm_gem_cma_vm_ops;
43
44#endif /* __DRM_GEM_CMA_HELPER_H__ */
diff --git a/include/linux/platform_data/shmob_drm.h b/include/linux/platform_data/shmob_drm.h
new file mode 100644
index 000000000000..7c686d335c12
--- /dev/null
+++ b/include/linux/platform_data/shmob_drm.h
@@ -0,0 +1,99 @@
1/*
2 * shmob_drm.h -- SH Mobile DRM driver
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __SHMOB_DRM_H__
15#define __SHMOB_DRM_H__
16
17#include <linux/kernel.h>
18
19#include <drm/drm_mode.h>
20
21struct sh_mobile_meram_cfg;
22struct sh_mobile_meram_info;
23
24enum shmob_drm_clk_source {
25 SHMOB_DRM_CLK_BUS,
26 SHMOB_DRM_CLK_PERIPHERAL,
27 SHMOB_DRM_CLK_EXTERNAL,
28};
29
30enum shmob_drm_interface {
31 SHMOB_DRM_IFACE_RGB8, /* 24bpp, 8:8:8 */
32 SHMOB_DRM_IFACE_RGB9, /* 18bpp, 9:9 */
33 SHMOB_DRM_IFACE_RGB12A, /* 24bpp, 12:12 */
34 SHMOB_DRM_IFACE_RGB12B, /* 12bpp */
35 SHMOB_DRM_IFACE_RGB16, /* 16bpp */
36 SHMOB_DRM_IFACE_RGB18, /* 18bpp */
37 SHMOB_DRM_IFACE_RGB24, /* 24bpp */
38 SHMOB_DRM_IFACE_YUV422, /* 16bpp */
39 SHMOB_DRM_IFACE_SYS8A, /* 24bpp, 8:8:8 */
40 SHMOB_DRM_IFACE_SYS8B, /* 18bpp, 8:8:2 */
41 SHMOB_DRM_IFACE_SYS8C, /* 18bpp, 2:8:8 */
42 SHMOB_DRM_IFACE_SYS8D, /* 16bpp, 8:8 */
43 SHMOB_DRM_IFACE_SYS9, /* 18bpp, 9:9 */
44 SHMOB_DRM_IFACE_SYS12, /* 24bpp, 12:12 */
45 SHMOB_DRM_IFACE_SYS16A, /* 16bpp */
46 SHMOB_DRM_IFACE_SYS16B, /* 18bpp, 16:2 */
47 SHMOB_DRM_IFACE_SYS16C, /* 18bpp, 2:16 */
48 SHMOB_DRM_IFACE_SYS18, /* 18bpp */
49 SHMOB_DRM_IFACE_SYS24, /* 24bpp */
50};
51
52struct shmob_drm_backlight_data {
53 const char *name;
54 int max_brightness;
55 int (*get_brightness)(void);
56 int (*set_brightness)(int brightness);
57};
58
59struct shmob_drm_panel_data {
60 unsigned int width_mm; /* Panel width in mm */
61 unsigned int height_mm; /* Panel height in mm */
62 struct drm_mode_modeinfo mode;
63};
64
65struct shmob_drm_sys_interface_data {
66 unsigned int read_latch:6;
67 unsigned int read_setup:8;
68 unsigned int read_cycle:8;
69 unsigned int read_strobe:8;
70 unsigned int write_setup:8;
71 unsigned int write_cycle:8;
72 unsigned int write_strobe:8;
73 unsigned int cs_setup:3;
74 unsigned int vsync_active_high:1;
75 unsigned int vsync_dir_input:1;
76};
77
78#define SHMOB_DRM_IFACE_FL_DWPOL (1 << 0) /* Rising edge dot clock data latch */
79#define SHMOB_DRM_IFACE_FL_DIPOL (1 << 1) /* Active low display enable */
80#define SHMOB_DRM_IFACE_FL_DAPOL (1 << 2) /* Active low display data */
81#define SHMOB_DRM_IFACE_FL_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */
82#define SHMOB_DRM_IFACE_FL_DWCNT (1 << 4) /* Disable dotclock during blanking */
83
84struct shmob_drm_interface_data {
85 enum shmob_drm_interface interface;
86 struct shmob_drm_sys_interface_data sys;
87 unsigned int clk_div;
88 unsigned int flags;
89};
90
91struct shmob_drm_platform_data {
92 enum shmob_drm_clk_source clk_source;
93 struct shmob_drm_interface_data iface;
94 struct shmob_drm_panel_data panel;
95 struct shmob_drm_backlight_data backlight;
96 const struct sh_mobile_meram_cfg *meram;
97};
98
99#endif /* __SHMOB_DRM_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-18 23:59:11 -0400