Merge git://git.infradead.org/mtd-2.6

[pandora-kernel.git] / drivers / gpu / drm / radeon / radeon_display.c

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 52ac08e..5764f4d 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -161,17 +161,13 @@ void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
 }
 
 static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
-                                 u16 *blue, uint32_t size)
+                                 u16 *blue, uint32_t start, uint32_t size)
 {
        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
-       int i;
-
-       if (size != 256) {
-               return;
-       }
+       int end = (start + size > 256) ? 256 : start + size, i;
 
        /* userspace palettes are always correct as is */
-       for (i = 0; i < 256; i++) {
+       for (i = start; i < end; i++) {
                radeon_crtc->lut_r[i] = red[i] >> 6;
                radeon_crtc->lut_g[i] = green[i] >> 6;
                radeon_crtc->lut_b[i] = blue[i] >> 6;
@@ -319,6 +315,10 @@ static void radeon_print_display_setup(struct drm_device *dev)
                                 radeon_connector->ddc_bus->rec.en_data_reg,
                                 radeon_connector->ddc_bus->rec.y_clk_reg,
                                 radeon_connector->ddc_bus->rec.y_data_reg);
+                       if (radeon_connector->router_bus)
+                               DRM_INFO("  DDC Router 0x%x/0x%x\n",
+                                        radeon_connector->router.mux_control_pin,
+                                        radeon_connector->router.mux_state);
                } else {
                        if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
                            connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
@@ -395,6 +395,10 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
        struct radeon_device *rdev = dev->dev_private;
        int ret = 0;
 
+       /* on hw with routers, select right port */
+       if (radeon_connector->router.valid)
+               radeon_router_select_port(radeon_connector);
+
        if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
            (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
                struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
@@ -425,6 +429,10 @@ static int radeon_ddc_dump(struct drm_connector *connector)
        struct radeon_connector *radeon_connector = to_radeon_connector(connector);
        int ret = 0;
 
+       /* on hw with routers, select right port */
+       if (radeon_connector->router.valid)
+               radeon_router_select_port(radeon_connector);
+
        if (!radeon_connector->ddc_bus)
                return -1;
        edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter);
@@ -876,13 +884,12 @@ radeon_user_framebuffer_create(struct drm_device *dev,
        if (obj ==  NULL) {
                dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
                        "can't create framebuffer\n", mode_cmd->handle);
-               return NULL;
+               return ERR_PTR(-ENOENT);
        }
 
        radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
-       if (radeon_fb == NULL) {
-               return NULL;
-       }
+       if (radeon_fb == NULL)
+               return ERR_PTR(-ENOMEM);
 
        radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj);