drm/exynos: add platform_device_id table and driver data for drm fimd

Two device ids are created for exynos4-fb and exynos5-fb.
Also, added driver data for exynos4 and exynos5 to pick the timing base address
at runtime to write data into appropriate register address.

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

1 files changed, 39 insertions, 4 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 1da741fc7460..73c52ed040fa 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -57,6 +57,18 @@
 
 #define get_fimd_context(dev)   platform_get_drvdata(to_platform_device(dev))
 
+struct fimd_driver_data {
+        unsigned int timing_base;
+};
+
+struct fimd_driver_data exynos4_fimd_driver_data = {
+        .timing_base = 0x0,
+};
+
+struct fimd_driver_data exynos5_fimd_driver_data = {
+        .timing_base = 0x20000,
+};
+
 struct fimd_win_data {
         unsigned int            offset_x;
         unsigned int            offset_y;
@@ -91,6 +103,13 @@ struct fimd_context {
         struct exynos_drm_panel_info *panel;
 };
 
+static inline struct fimd_driver_data *drm_fimd_get_driver_data(
+        struct platform_device *pdev)
+{
+        return (struct fimd_driver_data *)
+                platform_get_device_id(pdev)->driver_data;
+}
+
 static bool fimd_display_is_connected(struct device *dev)
 {
         DRM_DEBUG_KMS("%s\n", __FILE__);
@@ -194,32 +213,35 @@ static void fimd_commit(struct device *dev)
         struct fimd_context *ctx = get_fimd_context(dev);
         struct exynos_drm_panel_info *panel = ctx->panel;
         struct fb_videomode *timing = &panel->timing;
+        struct fimd_driver_data *driver_data;
+        struct platform_device *pdev = to_platform_device(dev);
         u32 val;
 
+        driver_data = drm_fimd_get_driver_data(pdev);
         if (ctx->suspended)
                 return;
 
         DRM_DEBUG_KMS("%s\n", __FILE__);
 
         /* setup polarity values from machine code. */
-        writel(ctx->vidcon1, ctx->regs + VIDCON1);
+        writel(ctx->vidcon1, ctx->regs + driver_data->timing_base + VIDCON1);
 
         /* setup vertical timing values. */
         val = VIDTCON0_VBPD(timing->upper_margin - 1) |
                VIDTCON0_VFPD(timing->lower_margin - 1) |
                VIDTCON0_VSPW(timing->vsync_len - 1);
-        writel(val, ctx->regs + VIDTCON0);
+        writel(val, ctx->regs + driver_data->timing_base + VIDTCON0);
 
         /* setup horizontal timing values.  */
         val = VIDTCON1_HBPD(timing->left_margin - 1) |
                VIDTCON1_HFPD(timing->right_margin - 1) |
                VIDTCON1_HSPW(timing->hsync_len - 1);
-        writel(val, ctx->regs + VIDTCON1);
+        writel(val, ctx->regs + driver_data->timing_base + VIDTCON1);
 
         /* setup horizontal and vertical display size. */
         val = VIDTCON2_LINEVAL(timing->yres - 1) |
                VIDTCON2_HOZVAL(timing->xres - 1);
-        writel(val, ctx->regs + VIDTCON2);
+        writel(val, ctx->regs + driver_data->timing_base + VIDTCON2);
 
         /* setup clock source, clock divider, enable dma. */
         val = ctx->vidcon0;
@@ -1009,6 +1031,18 @@ static int fimd_runtime_resume(struct device *dev)
 }
 #endif
 
+static struct platform_device_id fimd_driver_ids[] = {
+        {
+                .name           = "exynos4-fb",
+                .driver_data    = (unsigned long)&exynos4_fimd_driver_data,
+        }, {
+                .name           = "exynos5-fb",
+                .driver_data    = (unsigned long)&exynos5_fimd_driver_data,
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(platform, fimd_driver_ids);
+
 static const struct dev_pm_ops fimd_pm_ops = {
         SET_SYSTEM_SLEEP_PM_OPS(fimd_suspend, fimd_resume)
         SET_RUNTIME_PM_OPS(fimd_runtime_suspend, fimd_runtime_resume, NULL)
@@ -1017,6 +1051,7 @@ static const struct dev_pm_ops fimd_pm_ops = {
 struct platform_driver fimd_driver = {
         .probe          = fimd_probe,
         .remove         = __devexit_p(fimd_remove),
+        .id_table       = fimd_driver_ids,
         .driver         = {
                 .name   = "exynos4-fb",
                 .owner  = THIS_MODULE,