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>

1 files changed, 64 insertions, 9 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 6a2b0296adff..c44871c80aba 100644
--- 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;
 }