drm/radeon/kms: enable underscan option for digital connectors

[firefly-linux-kernel-4.4.55.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 12a54145b64a75484236825421e1567998b9a8e0..74dac9635d7010ac4d3dc2cc715922d4da2d7974 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -921,6 +921,12 @@ static struct drm_prop_enum_list radeon_tv_std_enum_list[] =
        { TV_STD_SECAM, "secam" },
 };
 
+static struct drm_prop_enum_list radeon_underscan_enum_list[] =
+{      { UNDERSCAN_OFF, "off" },
+       { UNDERSCAN_ON, "on" },
+       { UNDERSCAN_AUTO, "auto" },
+};
+
 static int radeon_modeset_create_props(struct radeon_device *rdev)
 {
        int i, sz;
@@ -974,6 +980,18 @@ static int radeon_modeset_create_props(struct radeon_device *rdev)
                                      radeon_tv_std_enum_list[i].name);
        }
 
+       sz = ARRAY_SIZE(radeon_underscan_enum_list);
+       rdev->mode_info.underscan_property =
+               drm_property_create(rdev->ddev,
+                                   DRM_MODE_PROP_ENUM,
+                                   "underscan", sz);
+       for (i = 0; i < sz; i++) {
+               drm_property_add_enum(rdev->mode_info.underscan_property,
+                                     i,
+                                     radeon_underscan_enum_list[i].type,
+                                     radeon_underscan_enum_list[i].name);
+       }
+
        return 0;
 }
 
@@ -1069,17 +1087,26 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
                                struct drm_display_mode *adjusted_mode)
 {
        struct drm_device *dev = crtc->dev;
+       struct radeon_device *rdev = dev->dev_private;
        struct drm_encoder *encoder;
        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
        struct radeon_encoder *radeon_encoder;
+       struct drm_connector *connector;
+       struct radeon_connector *radeon_connector;
        bool first = true;
        u32 src_v = 1, dst_v = 1;
        u32 src_h = 1, dst_h = 1;
 
+       radeon_crtc->h_border = 0;
+       radeon_crtc->v_border = 0;
+
        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
                if (encoder->crtc != crtc)
                        continue;
                radeon_encoder = to_radeon_encoder(encoder);
+               connector = radeon_get_connector_for_encoder(encoder);
+               radeon_connector = to_radeon_connector(connector);
+
                if (first) {
                        /* set scaling */
                        if (radeon_encoder->rmx_type == RMX_OFF)
@@ -1097,6 +1124,20 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
                        memcpy(&radeon_crtc->native_mode,
                               &radeon_encoder->native_mode,
                                sizeof(struct drm_display_mode));
+
+                       /* fix up for overscan on hdmi */
+                       if (ASIC_IS_AVIVO(rdev) &&
+                           ((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
+                            ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) &&
+                             drm_detect_hdmi_monitor(radeon_connector->edid)))) {
+                               radeon_crtc->h_border = (mode->hdisplay >> 5) + 16;
+                               radeon_crtc->v_border = (mode->vdisplay >> 5) + 16;
+                               radeon_crtc->rmx_type = RMX_FULL;
+                               src_v = crtc->mode.vdisplay;
+                               dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2);
+                               src_h = crtc->mode.hdisplay;
+                               dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2);
+                       }
                        first = false;
                } else {
                        if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {