drm/radeon/kms: properly handle bpc >8 in atom command tables

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

1 files changed, 34 insertions, 4 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 529a3a70473..608b1c20a76 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -512,6 +512,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
         struct radeon_device *rdev = dev->dev_private;
         struct drm_encoder *encoder = NULL;
         struct radeon_encoder *radeon_encoder = NULL;
+        struct drm_connector *connector = NULL;
         u32 adjusted_clock = mode->clock;
         int encoder_mode = 0;
         u32 dp_clock = mode->clock;
@@ -546,9 +547,11 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
                 if (encoder->crtc == crtc) {
                         radeon_encoder = to_radeon_encoder(encoder);
+                        connector = radeon_get_connector_for_encoder(encoder);
+                        if (connector)
+                                bpc = connector->display_info.bpc;
                         encoder_mode = atombios_get_encoder_mode(encoder);
                         if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) {
-                                struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
                                 if (connector) {
                                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
                                         struct radeon_connector_atom_dig *dig_connector =
@@ -754,7 +757,8 @@ static void atombios_crtc_program_pll(struct drm_crtc *crtc,
                                       u32 ref_div,
                                       u32 fb_div,
                                       u32 frac_fb_div,
-                                      u32 post_div)
+                                      u32 post_div,
+                                      int bpc)
 {
         struct drm_device *dev = crtc->dev;
         struct radeon_device *rdev = dev->dev_private;
@@ -812,6 +816,15 @@ static void atombios_crtc_program_pll(struct drm_crtc *crtc,
                         args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
                         args.v5.ucPostDiv = post_div;
                         args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */
+                        switch (bpc) {
+                        case 8:
+                        default:
+                                args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
+                                break;
+                        case 10:
+                                args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
+                                break;
+                        }
                         args.v5.ucTransmitterID = encoder_id;
                         args.v5.ucEncoderMode = encoder_mode;
                         args.v5.ucPpll = pll_id;
@@ -824,6 +837,21 @@ static void atombios_crtc_program_pll(struct drm_crtc *crtc,
                         args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
                         args.v6.ucPostDiv = post_div;
                         args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
+                        switch (bpc) {
+                        case 8:
+                        default:
+                                args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
+                                break;
+                        case 10:
+                                args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP;
+                                break;
+                        case 12:
+                                args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP;
+                                break;
+                        case 16:
+                                args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
+                                break;
+                        }
                         args.v6.ucTransmitterID = encoder_id;
                         args.v6.ucEncoderMode = encoder_mode;
                         args.v6.ucPpll = pll_id;
@@ -855,6 +883,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
         int encoder_mode = 0;
         struct radeon_atom_ss ss;
         bool ss_enabled = false;
+        int bpc = 8;
 
         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
                 if (encoder->crtc == crtc) {
@@ -891,6 +920,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
                 struct radeon_connector_atom_dig *dig_connector =
                         radeon_connector->con_priv;
                 int dp_clock;
+                bpc = connector->display_info.bpc;
 
                 switch (encoder_mode) {
                 case ATOM_ENCODER_MODE_DP:
@@ -974,7 +1004,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
 
         atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
                                   encoder_mode, radeon_encoder->encoder_id, mode->clock,
-                                  ref_div, fb_div, frac_fb_div, post_div);
+                                  ref_div, fb_div, frac_fb_div, post_div, bpc);
 
         if (ss_enabled) {
                 /* calculate ss amount and step size */
@@ -1522,7 +1552,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
         case ATOM_PPLL2:
                 /* disable the ppll */
                 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
-                                          0, 0, ATOM_DISABLE, 0, 0, 0, 0);
+                                          0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0);
                 break;
         default:
                 break;