[ARM] 3454/1: ARM: OMAP: 6/8 Update framebuffer low-level init code, take 2

Patch from Tony Lindgren

Update OMAP framebuffer low-level init code from linux-omap tree
by Imre Deak.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

5 files changed, 172 insertions, 27 deletions

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index a4e5ac77f6df..5dac4230360d 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1258,6 +1258,11 @@ void omap_stop_lcd_dma(void)
         omap_writew(w, OMAP1610_DMA_LCD_CTRL);
 }
 
+int omap_lcd_dma_ext_running(void)
+{
+        return lcd_dma.ext_ctrl && lcd_dma.active;
+}
+
 /*----------------------------------------------------------------------------*/
 
 static int __init omap_init_dma(void)
@@ -1389,6 +1394,7 @@ EXPORT_SYMBOL(omap_free_lcd_dma);
 EXPORT_SYMBOL(omap_enable_lcd_dma);
 EXPORT_SYMBOL(omap_setup_lcd_dma);
 EXPORT_SYMBOL(omap_stop_lcd_dma);
+EXPORT_SYMBOL(omap_lcd_dma_ext_running);
 EXPORT_SYMBOL(omap_set_lcd_dma_b1);
 EXPORT_SYMBOL(omap_set_lcd_dma_single_transfer);
 EXPORT_SYMBOL(omap_set_lcd_dma_ext_controller);
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
new file mode 100644
index 000000000000..305e9b990b71
--- /dev/null
+++ b/arch/arm/plat-omap/fb.c
@@ -0,0 +1,80 @@
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/bootmem.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/mach/map.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/sram.h>
+#include <asm/arch/omapfb.h>
+
+#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
+
+static struct omapfb_platform_data omapfb_config;
+
+static u64 omap_fb_dma_mask = ~(u32)0;
+
+static struct platform_device omap_fb_device = {
+        .name           = "omapfb",
+        .id             = -1,
+        .dev = {
+                .dma_mask               = &omap_fb_dma_mask,
+                .coherent_dma_mask      = ~(u32)0,
+                .platform_data          = &omapfb_config,
+        },
+        .num_resources = 0,
+};
+
+/* called from map_io */
+void omapfb_reserve_mem(void)
+{
+        const struct omap_fbmem_config *fbmem_conf;
+
+        omapfb_config.fbmem.fb_sram_start = omap_fb_sram_start;
+        omapfb_config.fbmem.fb_sram_size = omap_fb_sram_size;
+
+        fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
+
+        if (fbmem_conf != NULL) {
+                /* indicate that the bootloader already initialized the
+                 * fb device, so we'll skip that part in the fb driver
+                 */
+                omapfb_config.fbmem.fb_sdram_start = fbmem_conf->fb_sdram_start;
+                omapfb_config.fbmem.fb_sdram_size = fbmem_conf->fb_sdram_size;
+                if (fbmem_conf->fb_sdram_size) {
+                        pr_info("Reserving %u bytes SDRAM for frame buffer\n",
+                                fbmem_conf->fb_sdram_size);
+                        reserve_bootmem(fbmem_conf->fb_sdram_start,
+                                        fbmem_conf->fb_sdram_size);
+                }
+        }
+}
+
+static inline int omap_init_fb(void)
+{
+        const struct omap_lcd_config *conf;
+
+        conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
+        if (conf == NULL)
+                return 0;
+
+        omapfb_config.lcd = *conf;
+
+        return platform_device_register(&omap_fb_device);
+}
+
+arch_initcall(omap_init_fb);
+
+#else
+
+void omapfb_reserve_mem(void) {}
+
+#endif
+
+
diff --git a/include/asm-arm/arch-omap/dma.h b/include/asm-arm/arch-omap/dma.h
index d4e73efcb816..ca1202312a45 100644
--- a/include/asm-arm/arch-omap/dma.h
+++ b/include/asm-arm/arch-omap/dma.h
@@ -404,6 +404,7 @@ extern void omap_free_lcd_dma(void);
 extern void omap_setup_lcd_dma(void);
 extern void omap_enable_lcd_dma(void);
 extern void omap_stop_lcd_dma(void);
+extern int  omap_lcd_dma_ext_running(void);
 extern void omap_set_lcd_dma_ext_controller(int external);
 extern void omap_set_lcd_dma_single_transfer(int single);
 extern void omap_set_lcd_dma_b1(unsigned long addr, u16 fb_xres, u16 fb_yres,
diff --git a/include/asm-arm/arch-omap/lcd_lph8923.h b/include/asm-arm/arch-omap/lcd_lph8923.h
new file mode 100644
index 000000000000..004e67e22ca7
--- /dev/null
+++ b/include/asm-arm/arch-omap/lcd_lph8923.h
@@ -0,0 +1,14 @@
+#ifndef __LCD_LPH8923_H
+#define __LCD_LPH8923_H
+
+enum lcd_lph8923_test_num {
+        LCD_LPH8923_TEST_RGB_LINES,
+};
+
+enum lcd_lph8923_test_result {
+        LCD_LPH8923_TEST_SUCCESS,
+        LCD_LPH8923_TEST_INVALID,
+        LCD_LPH8923_TEST_FAILED,
+};
+
+#endif
diff --git a/include/asm-arm/arch-omap/omapfb.h b/include/asm-arm/arch-omap/omapfb.h
index 4ba2622cc142..fccdb3db025f 100644
--- a/include/asm-arm/arch-omap/omapfb.h
+++ b/include/asm-arm/arch-omap/omapfb.h
@@ -34,9 +34,10 @@
 #define OMAPFB_MIRROR           OMAP_IOW(31, int)
 #define OMAPFB_SYNC_GFX         OMAP_IO(37)
 #define OMAPFB_VSYNC            OMAP_IO(38)
-#define OMAPFB_SET_UPDATE_MODE  OMAP_IOW(40, enum omapfb_update_mode)
+#define OMAPFB_SET_UPDATE_MODE  OMAP_IOW(40, int)
+#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(41, struct omapfb_update_window_old)
 #define OMAPFB_GET_CAPS         OMAP_IOR(42, unsigned long)
-#define OMAPFB_GET_UPDATE_MODE  OMAP_IOW(43, enum omapfb_update_mode)
+#define OMAPFB_GET_UPDATE_MODE  OMAP_IOW(43, int)
 #define OMAPFB_LCD_TEST         OMAP_IOW(45, int)
 #define OMAPFB_CTRL_TEST        OMAP_IOW(46, int)
 #define OMAPFB_UPDATE_WINDOW    OMAP_IOW(47, struct omapfb_update_window)
@@ -66,9 +67,14 @@ enum omapfb_color_format {
 };
 
 struct omapfb_update_window {
-        u32 x, y;
-        u32 width, height;
-        u32 format;
+        __u32 x, y;
+        __u32 width, height;
+        __u32 format;
+};
+
+struct omapfb_update_window_old {
+        __u32 x, y;
+        __u32 width, height;
 };
 
 enum omapfb_plane {
@@ -83,17 +89,17 @@ enum omapfb_channel_out {
 };
 
 struct omapfb_setup_plane {
-        u8  plane;
-        u8  channel_out;
-        u32 offset;
-        u32 pos_x, pos_y;
-        u32 width, height;
-        u32 color_mode;
+        __u8  plane;
+        __u8  channel_out;
+        __u32 offset;
+        __u32 pos_x, pos_y;
+        __u32 width, height;
+        __u32 color_mode;
 };
 
 struct omapfb_enable_plane {
-        u8  plane;
-        u8  enable;
+        __u8  plane;
+        __u8  enable;
 };
 
 enum omapfb_color_key_type {
@@ -103,10 +109,10 @@ enum omapfb_color_key_type {
 };
 
 struct omapfb_color_key {
-        u8  channel_out;
-        u32 background;
-        u32 trans_key;
-        u8  key_type;
+        __u8  channel_out;
+        __u32 background;
+        __u32 trans_key;
+        __u8  key_type;
 };
 
 enum omapfb_update_mode {
@@ -120,6 +126,9 @@ enum omapfb_update_mode {
 #include <linux/completion.h>
 #include <linux/interrupt.h>
 #include <linux/fb.h>
+#include <linux/mutex.h>
+
+#include <asm/arch/board.h>
 
 #define OMAP_LCDC_INV_VSYNC             0x0001
 #define OMAP_LCDC_INV_HSYNC             0x0002
@@ -184,19 +193,38 @@ struct extif_timings {
         int re_cycle_time;
         int cs_pulse_width;
         int access_time;
+
+        int clk_div;
+
+        u32 tim[5];             /* set by extif->convert_timings */
+
+        int converted;
 };
 
 struct lcd_ctrl_extif {
         int  (*init)            (void);
         void (*cleanup)         (void);
+        void (*get_clk_info)    (u32 *clk_period, u32 *max_clk_div);
+        int  (*convert_timings) (struct extif_timings *timings);
         void (*set_timings)     (const struct extif_timings *timings);
-        void (*write_command)   (u32 cmd);
-        u32  (*read_data)       (void);
-        void (*write_data)      (u32 data);
+        void (*set_bits_per_cycle)(int bpc);
+        void (*write_command)   (const void *buf, unsigned int len);
+        void (*read_data)       (void *buf, unsigned int len);
+        void (*write_data)      (const void *buf, unsigned int len);
         void (*transfer_area)   (int width, int height,
                                  void (callback)(void * data), void *data);
+        unsigned long           max_transmit_size;
 };
 
+struct omapfb_notifier_block {
+        struct notifier_block   nb;
+        void                    *data;
+};
+
+typedef int (*omapfb_notifier_callback_t)(struct omapfb_notifier_block *,
+                                           unsigned long event,
+                                           struct omapfb_device *fbdev);
+
 struct lcd_ctrl {
         const char      *name;
         void            *data;
@@ -204,9 +232,11 @@ struct lcd_ctrl {
         int             (*init)           (struct omapfb_device *fbdev,
                                            int ext_mode, int req_vram_size);
         void            (*cleanup)        (void);
+        void            (*bind_client)    (struct omapfb_notifier_block *nb);
         void            (*get_vram_layout)(unsigned long *size,
                                            void **virt_base,
                                            dma_addr_t *phys_base);
+        int             (*mmap)           (struct vm_area_struct *vma);
         unsigned long   (*get_caps)       (void);
         int             (*set_update_mode)(enum omapfb_update_mode mode);
         enum omapfb_update_mode (*get_update_mode)(void);
@@ -240,7 +270,7 @@ struct omapfb_device {
         int                     state;
         int                     ext_lcdc;               /* Using external
                                                            LCD controller */
-        struct semaphore        rqueue_sema;
+        struct mutex            rqueue_mutex;
 
         void                    *vram_virt_base;
         dma_addr_t              vram_phys_base;
@@ -261,12 +291,13 @@ struct omapfb_device {
         struct device           *dev;
 };
 
-extern struct lcd_panel h3_panel;
-extern struct lcd_panel h2_panel;
-extern struct lcd_panel p2_panel;
-extern struct lcd_panel osk_panel;
-extern struct lcd_panel innovator1610_panel;
-extern struct lcd_panel innovator1510_panel;
+struct omapfb_platform_data {
+        struct omap_lcd_config   lcd;
+        struct omap_fbmem_config fbmem;
+};
+
+#define OMAPFB_EVENT_READY      1
+#define OMAPFB_EVENT_DISABLED   2
 
 #ifdef CONFIG_ARCH_OMAP1
 extern struct lcd_ctrl omap1_lcd_ctrl;
@@ -274,7 +305,20 @@ extern struct lcd_ctrl omap1_lcd_ctrl;
 extern struct lcd_ctrl omap2_disp_ctrl;
 #endif
 
+extern void omapfb_register_panel(struct lcd_panel *panel);
 extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
+extern void omapfb_notify_clients(struct omapfb_device *fbdev,
+                                  unsigned long event);
+extern int  omapfb_register_client(struct omapfb_notifier_block *nb,
+                                    omapfb_notifier_callback_t callback,
+                                    void *callback_data);
+extern int  omapfb_unregister_client(struct omapfb_notifier_block *nb);
+extern int  omapfb_update_window_async(struct omapfb_update_window *win,
+                                        void (*callback)(void *),
+                                        void *callback_data);
+
+/* in arch/arm/plat-omap/devices.c */
+extern void omapfb_reserve_mem(void);
 
 #endif /* __KERNEL__ */