From a890e6623ae024d28f855d672e72649fa2cb511e Mon Sep 17 00:00:00 2001
From: Rob Clark <rob@ti.com>
Date: Mon, 5 Mar 2012 10:48:31 -0600
Subject: staging: drm/omap: get supported color formats from ovl

Get the supported formats for a plane from ovl's supported_modes
bitmask.

Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h
index 61fe022..d924c95 100644
--- a/drivers/staging/omapdrm/omap_drv.h
+++ b/drivers/staging/omapdrm/omap_drv.h
@@ -92,6 +92,8 @@ void omap_connector_mode_set(struct drm_connector *connector,
 void omap_connector_flush(struct drm_connector *connector,
 		int x, int y, int w, int h);
 
+uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
+		uint32_t max_formats, enum omap_color_mode supported_modes);
 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
 		struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
diff --git a/drivers/staging/omapdrm/omap_fb.c b/drivers/staging/omapdrm/omap_fb.c
index d021a7e..116a8ff 100644
--- a/drivers/staging/omapdrm/omap_fb.c
+++ b/drivers/staging/omapdrm/omap_fb.c
@@ -59,6 +59,20 @@ static const struct format formats[] = {
 	{ OMAP_DSS_COLOR_UYVY,        DRM_FORMAT_UYVY,     {{2, 1}}, true },
 };
 
+/* convert from overlay's pixel formats bitmask to an array of fourcc's */
+uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
+		uint32_t max_formats, enum omap_color_mode supported_modes)
+{
+	uint32_t nformats = 0;
+	int i = 0;
+
+	for (i = 0; i < ARRAY_SIZE(formats) && nformats < max_formats; i++)
+		if (formats[i].dss_format & supported_modes)
+			pixel_formats[nformats++] = formats[i].pixel_format;
+
+	return nformats;
+}
+
 /* per-plane info for the fb: */
 struct plane {
 	struct drm_gem_object *bo;
diff --git a/drivers/staging/omapdrm/omap_plane.c b/drivers/staging/omapdrm/omap_plane.c
index 9790912..c5625e3 100644
--- a/drivers/staging/omapdrm/omap_plane.c
+++ b/drivers/staging/omapdrm/omap_plane.c
@@ -43,8 +43,10 @@ struct omap_plane {
 
 	/* last fb that we pinned: */
 	struct drm_framebuffer *pinned_fb;
-};
 
+	uint32_t nformats;
+	uint32_t formats[32];
+};
 
 /* push changes down to dss2 */
 static int commit(struct drm_plane *plane)
@@ -271,24 +273,6 @@ static const struct drm_plane_funcs omap_plane_funcs = {
 		.destroy = omap_plane_destroy,
 };
 
-static const uint32_t formats[] = {
-		DRM_FORMAT_RGB565,
-		DRM_FORMAT_RGBX4444,
-		DRM_FORMAT_XRGB4444,
-		DRM_FORMAT_RGBA4444,
-		DRM_FORMAT_ABGR4444,
-		DRM_FORMAT_XRGB1555,
-		DRM_FORMAT_ARGB1555,
-		DRM_FORMAT_RGB888,
-		DRM_FORMAT_RGBX8888,
-		DRM_FORMAT_XRGB8888,
-		DRM_FORMAT_RGBA8888,
-		DRM_FORMAT_ARGB8888,
-		DRM_FORMAT_NV12,
-		DRM_FORMAT_YUYV,
-		DRM_FORMAT_UYVY,
-};
-
 /* initialize plane */
 struct drm_plane *omap_plane_init(struct drm_device *dev,
 		struct omap_overlay *ovl, unsigned int possible_crtcs,
@@ -306,11 +290,14 @@ struct drm_plane *omap_plane_init(struct drm_device *dev,
 		goto fail;
 	}
 
+	omap_plane->nformats = omap_framebuffer_get_formats(
+			omap_plane->formats, ARRAY_SIZE(omap_plane->formats),
+			ovl->supported_modes);
 	omap_plane->ovl = ovl;
 	plane = &omap_plane->base;
 
 	drm_plane_init(dev, plane, possible_crtcs, &omap_plane_funcs,
-			formats, ARRAY_SIZE(formats), priv);
+			omap_plane->formats, omap_plane->nformats, priv);
 
 	/* get our starting configuration, set defaults for parameters
 	 * we don't currently use, etc:
-- 
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