Merge branch 'for-l-o-3.5'

Conflicts:
	drivers/video/omap2/displays/panel-taal.c

Merge OMAP DSS related board file changes. The branch will also be
merged through linux-omap tree to solve conflicts.

5 files changed, 171 insertions, 128 deletions

diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig
index 408a9927be9..c3853c92279 100644
--- a/drivers/video/omap2/displays/Kconfig
+++ b/drivers/video/omap2/displays/Kconfig
@@ -10,12 +10,12 @@ config PANEL_GENERIC_DPI
           Supports LCD Panel used in TI SDP3430 and EVM boards,
           OMAP3517 EVM boards and CM-T35.
 
-config PANEL_DVI
-        tristate "DVI output"
+config PANEL_TFP410
+        tristate "TFP410 DPI-to-DVI chip"
         depends on OMAP2_DSS_DPI && I2C
         help
-          Driver for external monitors, connected via DVI. The driver uses i2c
-          to read EDID information from the monitor.
+          Driver for TFP410 DPI-to-DVI chip. The driver uses i2c to read EDID
+          information from the monitor.
 
 config PANEL_LGPHILIPS_LB035Q02
         tristate "LG.Philips LB035Q02 LCD Panel"
diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile
index fbfafc6eebb..58a5176b07b 100644
--- a/drivers/video/omap2/displays/Makefile
+++ b/drivers/video/omap2/displays/Makefile
@@ -1,5 +1,5 @@
 obj-$(CONFIG_PANEL_GENERIC_DPI) += panel-generic-dpi.o
-obj-$(CONFIG_PANEL_DVI) += panel-dvi.o
+obj-$(CONFIG_PANEL_TFP410) += panel-tfp410.o
 obj-$(CONFIG_PANEL_LGPHILIPS_LB035Q02) += panel-lgphilips-lb035q02.o
 obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
 obj-$(CONFIG_PANEL_NEC_NL8048HL11_01B) += panel-nec-nl8048hl11-01b.o
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 3053399faf9..2ce9992f403 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -912,6 +912,15 @@ static int taal_probe(struct omap_dss_device *dssdev)
 
         dev_set_drvdata(&dssdev->dev, td);
 
+        if (gpio_is_valid(panel_data->reset_gpio)) {
+                r = gpio_request_one(panel_data->reset_gpio, GPIOF_OUT_INIT_LOW,
+                                "taal rst");
+                if (r) {
+                        dev_err(&dssdev->dev, "failed to request reset gpio\n");
+                        goto err_rst_gpio;
+                }
+        }
+
         taal_hw_reset(dssdev);
 
         if (panel_data->use_dsi_backlight) {
@@ -992,6 +1001,9 @@ err_gpio:
         if (bldev != NULL)
                 backlight_device_unregister(bldev);
 err_bl:
+        if (gpio_is_valid(panel_data->reset_gpio))
+                gpio_free(panel_data->reset_gpio);
+err_rst_gpio:
         destroy_workqueue(td->workqueue);
 err_wq:
         kfree(td);
@@ -1030,15 +1042,25 @@ static void __exit taal_remove(struct omap_dss_device *dssdev)
         /* reset, to be sure that the panel is in a valid state */
         taal_hw_reset(dssdev);
 
+        if (gpio_is_valid(panel_data->reset_gpio))
+                gpio_free(panel_data->reset_gpio);
+
         kfree(td);
 }
 
 static int taal_power_on(struct omap_dss_device *dssdev)
 {
         struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+        struct nokia_dsi_panel_data *panel_data = get_panel_data(dssdev);
         u8 id1, id2, id3;
         int r;
 
+        r = omapdss_dsi_configure_pins(dssdev, &panel_data->pin_config);
+        if (r) {
+                dev_err(&dssdev->dev, "failed to configure DSI pins\n");
+                goto err0;
+        };
+
         r = omapdss_dsi_display_enable(dssdev);
         if (r) {
                 dev_err(&dssdev->dev, "failed to enable DSI\n");
diff --git a/drivers/video/omap2/displays/panel-dvi.c b/drivers/video/omap2/displays/panel-tfp410.c
index 03eb14af33e..52637fa8fda 100644
--- a/drivers/video/omap2/displays/panel-dvi.c
+++ b/drivers/video/omap2/displays/panel-tfp410.c
@@ -1,5 +1,5 @@
 /*
- * DVI output support
+ * TFP410 DPI-to-DVI chip
  *
  * Copyright (C) 2011 Texas Instruments Inc
  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
@@ -21,11 +21,12 @@
 #include <linux/slab.h>
 #include <video/omapdss.h>
 #include <linux/i2c.h>
+#include <linux/gpio.h>
 #include <drm/drm_edid.h>
 
-#include <video/omap-panel-dvi.h>
+#include <video/omap-panel-tfp410.h>
 
-static const struct omap_video_timings panel_dvi_default_timings = {
+static const struct omap_video_timings tfp410_default_timings = {
         .x_res          = 640,
         .y_res          = 480,
 
@@ -44,17 +45,19 @@ struct panel_drv_data {
         struct omap_dss_device *dssdev;
 
         struct mutex lock;
+
+        int pd_gpio;
 };
 
-static inline struct panel_dvi_platform_data
+static inline struct tfp410_platform_data
 *get_pdata(const struct omap_dss_device *dssdev)
 {
         return dssdev->data;
 }
 
-static int panel_dvi_power_on(struct omap_dss_device *dssdev)
+static int tfp410_power_on(struct omap_dss_device *dssdev)
 {
-        struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+        struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
         int r;
 
         if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
@@ -64,57 +67,72 @@ static int panel_dvi_power_on(struct omap_dss_device *dssdev)
         if (r)
                 goto err0;
 
-        if (pdata->platform_enable) {
-                r = pdata->platform_enable(dssdev);
-                if (r)
-                        goto err1;
-        }
+        if (gpio_is_valid(ddata->pd_gpio))
+                gpio_set_value(ddata->pd_gpio, 1);
 
         return 0;
-err1:
-        omapdss_dpi_display_disable(dssdev);
 err0:
         return r;
 }
 
-static void panel_dvi_power_off(struct omap_dss_device *dssdev)
+static void tfp410_power_off(struct omap_dss_device *dssdev)
 {
-        struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+        struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
 
         if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
                 return;
 
-        if (pdata->platform_disable)
-                pdata->platform_disable(dssdev);
+        if (gpio_is_valid(ddata->pd_gpio))
+                gpio_set_value(ddata->pd_gpio, 0);
 
         omapdss_dpi_display_disable(dssdev);
 }
 
-static int panel_dvi_probe(struct omap_dss_device *dssdev)
+static int tfp410_probe(struct omap_dss_device *dssdev)
 {
+        struct tfp410_platform_data *pdata = get_pdata(dssdev);
         struct panel_drv_data *ddata;
+        int r;
 
         ddata = kzalloc(sizeof(*ddata), GFP_KERNEL);
         if (!ddata)
                 return -ENOMEM;
 
-        dssdev->panel.timings = panel_dvi_default_timings;
+        dssdev->panel.timings = tfp410_default_timings;
         dssdev->panel.config = OMAP_DSS_LCD_TFT;
 
         ddata->dssdev = dssdev;
         mutex_init(&ddata->lock);
 
+        if (pdata)
+                ddata->pd_gpio = pdata->power_down_gpio;
+        else
+                ddata->pd_gpio = -1;
+
+        if (gpio_is_valid(ddata->pd_gpio)) {
+                r = gpio_request_one(ddata->pd_gpio, GPIOF_OUT_INIT_LOW,
+                                "tfp410 pd");
+                if (r) {
+                        dev_err(&dssdev->dev, "Failed to request PD GPIO %d\n",
+                                        ddata->pd_gpio);
+                        ddata->pd_gpio = -1;
+                }
+        }
+
         dev_set_drvdata(&dssdev->dev, ddata);
 
         return 0;
 }
 
-static void __exit panel_dvi_remove(struct omap_dss_device *dssdev)
+static void __exit tfp410_remove(struct omap_dss_device *dssdev)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
 
         mutex_lock(&ddata->lock);
 
+        if (gpio_is_valid(ddata->pd_gpio))
+                gpio_free(ddata->pd_gpio);
+
         dev_set_drvdata(&dssdev->dev, NULL);
 
         mutex_unlock(&ddata->lock);
@@ -122,14 +140,14 @@ static void __exit panel_dvi_remove(struct omap_dss_device *dssdev)
         kfree(ddata);
 }
 
-static int panel_dvi_enable(struct omap_dss_device *dssdev)
+static int tfp410_enable(struct omap_dss_device *dssdev)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
         int r;
 
         mutex_lock(&ddata->lock);
 
-        r = panel_dvi_power_on(dssdev);
+        r = tfp410_power_on(dssdev);
         if (r == 0)
                 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 
@@ -138,26 +156,26 @@ static int panel_dvi_enable(struct omap_dss_device *dssdev)
         return r;
 }
 
-static void panel_dvi_disable(struct omap_dss_device *dssdev)
+static void tfp410_disable(struct omap_dss_device *dssdev)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
 
         mutex_lock(&ddata->lock);
 
-        panel_dvi_power_off(dssdev);
+        tfp410_power_off(dssdev);
 
         dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 
         mutex_unlock(&ddata->lock);
 }
 
-static int panel_dvi_suspend(struct omap_dss_device *dssdev)
+static int tfp410_suspend(struct omap_dss_device *dssdev)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
 
         mutex_lock(&ddata->lock);
 
-        panel_dvi_power_off(dssdev);
+        tfp410_power_off(dssdev);
 
         dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
 
@@ -166,14 +184,14 @@ static int panel_dvi_suspend(struct omap_dss_device *dssdev)
         return 0;
 }
 
-static int panel_dvi_resume(struct omap_dss_device *dssdev)
+static int tfp410_resume(struct omap_dss_device *dssdev)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
         int r;
 
         mutex_lock(&ddata->lock);
 
-        r = panel_dvi_power_on(dssdev);
+        r = tfp410_power_on(dssdev);
         if (r == 0)
                 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 
@@ -182,7 +200,7 @@ static int panel_dvi_resume(struct omap_dss_device *dssdev)
         return r;
 }
 
-static void panel_dvi_set_timings(struct omap_dss_device *dssdev,
+static void tfp410_set_timings(struct omap_dss_device *dssdev,
                 struct omap_video_timings *timings)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
@@ -192,7 +210,7 @@ static void panel_dvi_set_timings(struct omap_dss_device *dssdev,
         mutex_unlock(&ddata->lock);
 }
 
-static void panel_dvi_get_timings(struct omap_dss_device *dssdev,
+static void tfp410_get_timings(struct omap_dss_device *dssdev,
                 struct omap_video_timings *timings)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
@@ -202,7 +220,7 @@ static void panel_dvi_get_timings(struct omap_dss_device *dssdev,
         mutex_unlock(&ddata->lock);
 }
 
-static int panel_dvi_check_timings(struct omap_dss_device *dssdev,
+static int tfp410_check_timings(struct omap_dss_device *dssdev,
                 struct omap_video_timings *timings)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
@@ -216,7 +234,7 @@ static int panel_dvi_check_timings(struct omap_dss_device *dssdev,
 }
 
 
-static int panel_dvi_ddc_read(struct i2c_adapter *adapter,
+static int tfp410_ddc_read(struct i2c_adapter *adapter,
                 unsigned char *buf, u16 count, u8 offset)
 {
         int r, retries;
@@ -247,11 +265,11 @@ static int panel_dvi_ddc_read(struct i2c_adapter *adapter,
         return r < 0 ? r : -EIO;
 }
 
-static int panel_dvi_read_edid(struct omap_dss_device *dssdev,
+static int tfp410_read_edid(struct omap_dss_device *dssdev,
                 u8 *edid, int len)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
-        struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+        struct tfp410_platform_data *pdata = get_pdata(dssdev);
         struct i2c_adapter *adapter;
         int r, l, bytes_read;
 
@@ -271,7 +289,7 @@ static int panel_dvi_read_edid(struct omap_dss_device *dssdev,
         }
 
         l = min(EDID_LENGTH, len);
-        r = panel_dvi_ddc_read(adapter, edid, l, 0);
+        r = tfp410_ddc_read(adapter, edid, l, 0);
         if (r)
                 goto err;
 
@@ -281,7 +299,7 @@ static int panel_dvi_read_edid(struct omap_dss_device *dssdev,
         if (len > EDID_LENGTH && edid[0x7e] > 0) {
                 l = min(EDID_LENGTH, len - EDID_LENGTH);
 
-                r = panel_dvi_ddc_read(adapter, edid + EDID_LENGTH,
+                r = tfp410_ddc_read(adapter, edid + EDID_LENGTH,
                                 l, EDID_LENGTH);
                 if (r)
                         goto err;
@@ -298,10 +316,10 @@ err:
         return r;
 }
 
-static bool panel_dvi_detect(struct omap_dss_device *dssdev)
+static bool tfp410_detect(struct omap_dss_device *dssdev)
 {
         struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
-        struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+        struct tfp410_platform_data *pdata = get_pdata(dssdev);
         struct i2c_adapter *adapter;
         unsigned char out;
         int r;
@@ -315,7 +333,7 @@ static bool panel_dvi_detect(struct omap_dss_device *dssdev)
         if (!adapter)
                 goto out;
 
-        r = panel_dvi_ddc_read(adapter, &out, 1, 0);
+        r = tfp410_ddc_read(adapter, &out, 1, 0);
 
         mutex_unlock(&ddata->lock);
 
@@ -326,38 +344,38 @@ out:
         return true;
 }
 
-static struct omap_dss_driver panel_dvi_driver = {
-        .probe          = panel_dvi_probe,
-        .remove         = __exit_p(panel_dvi_remove),
+static struct omap_dss_driver tfp410_driver = {
+        .probe          = tfp410_probe,
+        .remove         = __exit_p(tfp410_remove),
 
-        .enable         = panel_dvi_enable,
-        .disable        = panel_dvi_disable,
-        .suspend        = panel_dvi_suspend,
-        .resume         = panel_dvi_resume,
+        .enable         = tfp410_enable,
+        .disable        = tfp410_disable,
+        .suspend        = tfp410_suspend,
+        .resume         = tfp410_resume,
 
-        .set_timings    = panel_dvi_set_timings,
-        .get_timings    = panel_dvi_get_timings,
-        .check_timings  = panel_dvi_check_timings,
+        .set_timings    = tfp410_set_timings,
+        .get_timings    = tfp410_get_timings,
+        .check_timings  = tfp410_check_timings,
 
-        .read_edid      = panel_dvi_read_edid,
-        .detect         = panel_dvi_detect,
+        .read_edid      = tfp410_read_edid,
+        .detect         = tfp410_detect,
 
         .driver         = {
-                .name   = "dvi",
+                .name   = "tfp410",
                 .owner  = THIS_MODULE,
         },
 };
 
-static int __init panel_dvi_init(void)
+static int __init tfp410_init(void)
 {
-        return omap_dss_register_driver(&panel_dvi_driver);
+        return omap_dss_register_driver(&tfp410_driver);
 }
 
-static void __exit panel_dvi_exit(void)
+static void __exit tfp410_exit(void)
 {
-        omap_dss_unregister_driver(&panel_dvi_driver);
+        omap_dss_unregister_driver(&tfp410_driver);
 }
 
-module_init(panel_dvi_init);
-module_exit(panel_dvi_exit);
+module_init(tfp410_init);
+module_exit(tfp410_exit);
 MODULE_LICENSE("GPL");
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 95bc9964ab9..446e1366747 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2045,65 +2045,6 @@ static unsigned dsi_get_line_buf_size(struct platform_device *dsidev)
         }
 }
 
-static int dsi_parse_lane_config(struct omap_dss_device *dssdev)
-{
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-        struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-        u8 lanes[DSI_MAX_NR_LANES];
-        u8 polarities[DSI_MAX_NR_LANES];
-        int num_lanes, i;
-
-        static const enum dsi_lane_function functions[] = {
-                DSI_LANE_CLK,
-                DSI_LANE_DATA1,
-                DSI_LANE_DATA2,
-                DSI_LANE_DATA3,
-                DSI_LANE_DATA4,
-        };
-
-        lanes[0] = dssdev->phy.dsi.clk_lane;
-        lanes[1] = dssdev->phy.dsi.data1_lane;
-        lanes[2] = dssdev->phy.dsi.data2_lane;
-        lanes[3] = dssdev->phy.dsi.data3_lane;
-        lanes[4] = dssdev->phy.dsi.data4_lane;
-        polarities[0] = dssdev->phy.dsi.clk_pol;
-        polarities[1] = dssdev->phy.dsi.data1_pol;
-        polarities[2] = dssdev->phy.dsi.data2_pol;
-        polarities[3] = dssdev->phy.dsi.data3_pol;
-        polarities[4] = dssdev->phy.dsi.data4_pol;
-
-        num_lanes = 0;
-
-        for (i = 0; i < dsi->num_lanes_supported; ++i)
-                dsi->lanes[i].function = DSI_LANE_UNUSED;
-
-        for (i = 0; i < dsi->num_lanes_supported; ++i) {
-                int num;
-
-                if (lanes[i] == DSI_LANE_UNUSED)
-                        break;
-
-                num = lanes[i] - 1;
-
-                if (num >= dsi->num_lanes_supported)
-                        return -EINVAL;
-
-                if (dsi->lanes[num].function != DSI_LANE_UNUSED)
-                        return -EINVAL;
-
-                dsi->lanes[num].function = functions[i];
-                dsi->lanes[num].polarity = polarities[i];
-                num_lanes++;
-        }
-
-        if (num_lanes < 2 || num_lanes > dsi->num_lanes_supported)
-                return -EINVAL;
-
-        dsi->num_lanes_used = num_lanes;
-
-        return 0;
-}
-
 static int dsi_set_lane_config(struct omap_dss_device *dssdev)
 {
         struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
@@ -3944,6 +3885,74 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
         }
 }
 
+int omapdss_dsi_configure_pins(struct omap_dss_device *dssdev,
+                const struct omap_dsi_pin_config *pin_cfg)
+{
+        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+        struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+        int num_pins;
+        const int *pins;
+        struct dsi_lane_config lanes[DSI_MAX_NR_LANES];
+        int num_lanes;
+        int i;
+
+        static const enum dsi_lane_function functions[] = {
+                DSI_LANE_CLK,
+                DSI_LANE_DATA1,
+                DSI_LANE_DATA2,
+                DSI_LANE_DATA3,
+                DSI_LANE_DATA4,
+        };
+
+        num_pins = pin_cfg->num_pins;
+        pins = pin_cfg->pins;
+
+        if (num_pins < 4 || num_pins > dsi->num_lanes_supported * 2
+                        || num_pins % 2 != 0)
+                return -EINVAL;
+
+        for (i = 0; i < DSI_MAX_NR_LANES; ++i)
+                lanes[i].function = DSI_LANE_UNUSED;
+
+        num_lanes = 0;
+
+        for (i = 0; i < num_pins; i += 2) {
+                u8 lane, pol;
+                int dx, dy;
+
+                dx = pins[i];
+                dy = pins[i + 1];
+
+                if (dx < 0 || dx >= dsi->num_lanes_supported * 2)
+                        return -EINVAL;
+
+                if (dy < 0 || dy >= dsi->num_lanes_supported * 2)
+                        return -EINVAL;
+
+                if (dx & 1) {
+                        if (dy != dx - 1)
+                                return -EINVAL;
+                        pol = 1;
+                } else {
+                        if (dy != dx + 1)
+                                return -EINVAL;
+                        pol = 0;
+                }
+
+                lane = dx / 2;
+
+                lanes[lane].function = functions[i / 2];
+                lanes[lane].polarity = pol;
+                num_lanes++;
+        }
+
+        memcpy(dsi->lanes, lanes, sizeof(dsi->lanes));
+        dsi->num_lanes_used = num_lanes;
+
+        return 0;
+}
+EXPORT_SYMBOL(omapdss_dsi_configure_pins);
+
 int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 {
         struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
@@ -4301,12 +4310,6 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
         int dsi_module = dsi_get_dsidev_id(dsidev);
         int r;
 
-        r = dsi_parse_lane_config(dssdev);
-        if (r) {
-                DSSERR("illegal lane config");
-                goto err0;
-        }
-
         r = dsi_pll_init(dsidev, true, true);
         if (r)
                 goto err0;