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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-09-02 19:30:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-09-02 19:30:09 +0200
commit99097a214b0c15f7595ac8f2788662f3941c1992 (patch)
tree9e496a96ea36ccd9e97509878fadeecd671e28aa /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
parentd4e34999a7571e0a8d43cec6a0f13ecf40d3b1e8 (diff)
parent089cf7f6ecb266b6a4164919a2e69bd2f938374a (diff)
Merge 5.3-rc7 into char-misc-next
We need the fixes in here as well for testing and merges Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 4a29f72334d0..45be7a2132bb 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3131,13 +3131,25 @@ static enum dc_color_depth
convert_color_depth_from_display_info(const struct drm_connector *connector,
const struct drm_connector_state *state)
{
- uint32_t bpc = connector->display_info.bpc;
+ uint8_t bpc = (uint8_t)connector->display_info.bpc;
+
+ /* Assume 8 bpc by default if no bpc is specified. */
+ bpc = bpc ? bpc : 8;
if (!state)
state = connector->state;
if (state) {
- bpc = state->max_bpc;
+ /*
+ * Cap display bpc based on the user requested value.
+ *
+ * The value for state->max_bpc may not correctly updated
+ * depending on when the connector gets added to the state
+ * or if this was called outside of atomic check, so it
+ * can't be used directly.
+ */
+ bpc = min(bpc, state->max_requested_bpc);
+
/* Round down to the nearest even number. */
bpc = bpc - (bpc & 1);
}