drm/radeon/kms: add common scaled modes for TV and LVDS

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 6a2b029..c44871c 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -28,6 +28,7 @@
 #include "drm_crtc_helper.h"
 #include "radeon_drm.h"
 #include "radeon.h"
+#include "atom.h"
 
 extern void
 radeon_combios_connected_scratch_regs(struct drm_connector *connector,
@@ -174,6 +175,50 @@ static struct drm_display_mode *radeon_fp_native_mode(struct drm_encoder *encode
        return mode;
 }
 
+static void radeon_add_common_modes(struct drm_encoder *encoder, struct drm_connector *connector)
+{
+       struct drm_device *dev = encoder->dev;
+       struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+       struct drm_display_mode *mode = NULL;
+       struct radeon_native_mode *native_mode = &radeon_encoder->native_mode;
+       int i;
+       struct mode_size {
+               int w;
+               int h;
+       } common_modes[17] = {
+               { 640,  480},
+               { 720,  480},
+               { 800,  600},
+               { 848,  480},
+               {1024,  768},
+               {1152,  768},
+               {1280,  720},
+               {1280,  800},
+               {1280,  854},
+               {1280,  960},
+               {1280, 1024},
+               {1440,  900},
+               {1400, 1050},
+               {1680, 1050},
+               {1600, 1200},
+               {1920, 1080},
+               {1920, 1200}
+       };
+
+       for (i = 0; i < 17; i++) {
+               if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
+                       if (common_modes[i].w >= native_mode->panel_xres &&
+                           common_modes[i].h >= native_mode->panel_yres)
+                               continue;
+               }
+               if (common_modes[i].w < 320 || common_modes[i].h < 200)
+                       continue;
+
+               mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false);
+               drm_mode_probed_add(connector, mode);
+       }
+}
+
 int radeon_connector_set_property(struct drm_connector *connector, struct drm_property *property,
                                  uint64_t val)
 {
@@ -205,6 +250,10 @@ static int radeon_lvds_get_modes(struct drm_connector *connector)
                ret = 1;
                drm_mode_probed_add(connector, mode);
        }
+
+       /* add scaled modes */
+       radeon_add_common_modes(encoder, connector);
+
        return ret;
 }
 
@@ -306,21 +355,27 @@ struct drm_connector_funcs radeon_vga_connector_funcs = {
        .set_property = radeon_connector_set_property,
 };
 
-static struct drm_display_mode tv_fixed_mode = {
-       DRM_MODE("800x600", DRM_MODE_TYPE_DEFAULT, 38250, 800, 832,
-                912, 1024, 0, 600, 603, 607, 624, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC),
-};
-
 static int radeon_tv_get_modes(struct drm_connector *connector)
 {
        struct drm_device *dev = connector->dev;
+       struct radeon_device *rdev = dev->dev_private;
        struct drm_display_mode *tv_mode;
+       struct drm_encoder *encoder;
 
-       tv_mode = drm_mode_duplicate(dev, &tv_fixed_mode);
-       tv_mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
-
-       drm_mode_probed_add(connector, tv_mode);
+       encoder = radeon_best_single_encoder(connector);
+       if (!encoder)
+               return 0;
 
+       /* avivo chips can scale any mode */
+       if (rdev->family >= CHIP_RS600)
+               /* add scaled modes */
+               radeon_add_common_modes(encoder, connector);
+       else {
+               /* only 800x600 is supported right now on pre-avivo chips */
+               tv_mode = drm_cvt_mode(dev, 800, 600, 60, false, false);
+               tv_mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+               drm_mode_probed_add(connector, tv_mode);
+       }
        return 1;
 }