drm/exynos: added panel physical size.

Signed-off-by: Eun-Chul Kim <chulspro.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_connector.c

@@ -28,6 +28,7 @@
 #include "drmP.h"
 #include "drm_crtc_helper.h"
 
+#include <drm/exynos_drm.h>
 #include "exynos_drm_drv.h"
 #include "exynos_drm_encoder.h"
 
@@ -44,8 +45,9 @@ struct exynos_drm_connector {
 /* convert exynos_video_timings to drm_display_mode */
 static inline void
 convert_to_display_mode(struct drm_display_mode *mode,
-			struct fb_videomode *timing)
+			struct exynos_drm_panel_info *panel)
 {
+	struct fb_videomode *timing = &panel->timing;
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
 	mode->clock = timing->pixclock / 1000;
@@ -60,6 +62,8 @@ convert_to_display_mode(struct drm_display_mode *mode,
 	mode->vsync_start = mode->vdisplay + timing->upper_margin;
 	mode->vsync_end = mode->vsync_start + timing->vsync_len;
 	mode->vtotal = mode->vsync_end + timing->lower_margin;
+	mode->width_mm = panel->width_mm;
+	mode->height_mm = panel->height_mm;
 
 	if (timing->vmode & FB_VMODE_INTERLACED)
 		mode->flags |= DRM_MODE_FLAG_INTERLACE;
@@ -148,16 +152,18 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector)
 		connector->display_info.raw_edid = edid;
 	} else {
 		struct drm_display_mode *mode = drm_mode_create(connector->dev);
-		struct fb_videomode *timing;
+		struct exynos_drm_panel_info *panel;
 
-		if (display_ops->get_timing)
-			timing = display_ops->get_timing(manager->dev);
+		if (display_ops->get_panel)
+			panel = display_ops->get_panel(manager->dev);
 		else {
 			drm_mode_destroy(connector->dev, mode);
 			return 0;
 		}
 
-		convert_to_display_mode(mode, timing);
+		convert_to_display_mode(mode, panel);
+		connector->display_info.width_mm = mode->width_mm;
+		connector->display_info.height_mm = mode->height_mm;
 
 		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
 		drm_mode_set_name(mode);

drivers/gpu/drm/exynos/exynos_drm_drv.h

@@ -136,7 +136,7 @@ struct exynos_drm_overlay {
  * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
  * @is_connected: check for that display is connected or not.
  * @get_edid: get edid modes from display driver.
- * @get_timing: get timing object from display driver.
+ * @get_panel: get panel object from display driver.
  * @check_timing: check if timing is valid or not.
  * @power_on: display device on or off.
  */
@@ -145,7 +145,7 @@ struct exynos_drm_display_ops {
 	bool (*is_connected)(struct device *dev);
 	int (*get_edid)(struct device *dev, struct drm_connector *connector,
 				u8 *edid, int len);
-	void *(*get_timing)(struct device *dev);
+	void *(*get_panel)(struct device *dev);
 	int (*check_timing)(struct device *dev, void *timing);
 	int (*power_on)(struct device *dev, int mode);
 };

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -89,7 +89,7 @@ struct fimd_context {
 	bool				suspended;
 	struct mutex			lock;
 
-	struct fb_videomode		*timing;
+	struct exynos_drm_panel_info *panel;
 };
 
 static bool fimd_display_is_connected(struct device *dev)
@@ -101,13 +101,13 @@ static bool fimd_display_is_connected(struct device *dev)
 	return true;
 }
 
-static void *fimd_get_timing(struct device *dev)
+static void *fimd_get_panel(struct device *dev)
 {
 	struct fimd_context *ctx = get_fimd_context(dev);
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	return ctx->timing;
+	return ctx->panel;
 }
 
 static int fimd_check_timing(struct device *dev, void *timing)
@@ -131,7 +131,7 @@ static int fimd_display_power_on(struct device *dev, int mode)
 static struct exynos_drm_display_ops fimd_display_ops = {
 	.type = EXYNOS_DISPLAY_TYPE_LCD,
 	.is_connected = fimd_display_is_connected,
-	.get_timing = fimd_get_timing,
+	.get_panel = fimd_get_panel,
 	.check_timing = fimd_check_timing,
 	.power_on = fimd_display_power_on,
 };
@@ -193,7 +193,8 @@ static void fimd_apply(struct device *subdrv_dev)
 static void fimd_commit(struct device *dev)
 {
 	struct fimd_context *ctx = get_fimd_context(dev);
-	struct fb_videomode *timing = ctx->timing;
+	struct exynos_drm_panel_info *panel = ctx->panel;
+	struct fb_videomode *timing = &panel->timing;
 	u32 val;
 
 	if (ctx->suspended)
@@ -786,7 +787,7 @@ static int __devinit fimd_probe(struct platform_device *pdev)
 	struct fimd_context *ctx;
 	struct exynos_drm_subdrv *subdrv;
 	struct exynos_drm_fimd_pdata *pdata;
-	struct fb_videomode *timing;
+	struct exynos_drm_panel_info *panel;
 	struct resource *res;
 	int win;
 	int ret = -EINVAL;
@@ -799,9 +800,9 @@ static int __devinit fimd_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	timing = &pdata->timing;
-	if (!timing) {
-		dev_err(dev, "timing is null.\n");
+	panel = &pdata->panel;
+	if (!panel) {
+		dev_err(dev, "panel is null.\n");
 		return -EINVAL;
 	}
 
@@ -863,16 +864,16 @@ static int __devinit fimd_probe(struct platform_device *pdev)
 		goto err_req_irq;
 	}
 
-	ctx->clkdiv = fimd_calc_clkdiv(ctx, timing);
+	ctx->clkdiv = fimd_calc_clkdiv(ctx, &panel->timing);
 	ctx->vidcon0 = pdata->vidcon0;
 	ctx->vidcon1 = pdata->vidcon1;
 	ctx->default_win = pdata->default_win;
-	ctx->timing = timing;
+	ctx->panel = panel;
 
-	timing->pixclock = clk_get_rate(ctx->lcd_clk) / ctx->clkdiv;
+	panel->timing.pixclock = clk_get_rate(ctx->lcd_clk) / ctx->clkdiv;
 
 	DRM_DEBUG_KMS("pixel clock = %d, clkdiv = %d\n",
-			timing->pixclock, ctx->clkdiv);
+			panel->timing.pixclock, ctx->clkdiv);
 
 	subdrv = &ctx->subdrv;
 

include/drm/exynos_drm.h

@@ -98,14 +98,27 @@ struct drm_exynos_plane_set_zpos {
 		DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
 
 /**
- * Platform Specific Structure for DRM based FIMD.
+ * A structure for lcd panel information.
  *
  * @timing: default video mode for initializing
+ * @width_mm: physical size of lcd width.
+ * @height_mm: physical size of lcd height.
+ */
+struct exynos_drm_panel_info {
+	struct fb_videomode timing;
+	u32 width_mm;
+	u32 height_mm;
+};
+
+/**
+ * Platform Specific Structure for DRM based FIMD.
+ *
+ * @panel: default panel info for initializing
  * @default_win: default window layer number to be used for UI.
  * @bpp: default bit per pixel.
  */
 struct exynos_drm_fimd_pdata {
-	struct fb_videomode		timing;
+	struct exynos_drm_panel_info panel;
 	u32				vidcon0;
 	u32				vidcon1;
 	unsigned int			default_win;