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From 33995377a1a5f98119f7d336f5772988b975aa67 Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Wed, 22 May 2019 12:00:55 -0400
Subject: [PATCH 2000/2940] drm/amd/display: Use new connector state when
getting color depth
[Why]
The current state on the connector is queried when getting the max bpc
rather than the new state. This means that a new max bpc value can only
currently take effect on the commit *after* it changes.
The new state should be passed in instead.
[How]
Pass down the dm_state as drm state to where we do color depth lookup.
The passed in state can still be NULL when called from
amdgpu_dm_connector_mode_valid, so make sure that we have reasonable
defaults in place. That should probably be addressed at some point.
This change now (correctly) causes a modeset to occur when changing the
max bpc for a connector.
v2: Drop extra TODO.
Change-Id: Ic4bd1d8628469cbfbd55a6f4e3ca52059a7d7ab3
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Chaudhary Amit Kumar <Chaudharyamit.Kumar@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 32 +++++++++++--------
1 file changed, 18 insertions(+), 14 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 7369c00b24b7..565cb321cdec 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3055,17 +3055,18 @@ static void update_stream_scaling_settings(const struct drm_display_mode *mode,
}
static enum dc_color_depth
-convert_color_depth_from_display_info(const struct drm_connector *connector)
+convert_color_depth_from_display_info(const struct drm_connector *connector,
+ const struct drm_connector_state *state)
{
struct dm_connector_state *dm_conn_state =
to_dm_connector_state(connector->state);
uint32_t bpc = connector->display_info.bpc;
- /* TODO: Remove this when there's support for max_bpc in drm */
- if (dm_conn_state && bpc > dm_conn_state->max_bpc)
- /* Round down to nearest even number. */
- bpc = dm_conn_state->max_bpc - (dm_conn_state->max_bpc & 1);
-
+ if (state) {
+ bpc = state->max_bpc;
+ /* Round down to the nearest even number. */
+ bpc = bpc - (bpc & 1);
+ }
switch (bpc) {
case 0:
/*
@@ -3182,11 +3183,12 @@ static void adjust_colour_depth_from_display_info(struct dc_crtc_timing *timing_
}
-static void
-fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream,
- const struct drm_display_mode *mode_in,
- const struct drm_connector *connector,
- const struct dc_stream_state *old_stream)
+static void fill_stream_properties_from_drm_display_mode(
+ struct dc_stream_state *stream,
+ const struct drm_display_mode *mode_in,
+ const struct drm_connector *connector,
+ const struct drm_connector_state *connector_state,
+ const struct dc_stream_state *old_stream)
{
struct dc_crtc_timing *timing_out = &stream->timing;
const struct drm_display_info *info = &connector->display_info;
@@ -3209,7 +3211,7 @@ fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream,
timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE;
timing_out->display_color_depth = convert_color_depth_from_display_info(
- connector);
+ connector, connector_state);
timing_out->scan_type = SCANNING_TYPE_NODATA;
timing_out->hdmi_vic = 0;
@@ -3406,6 +3408,8 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
{
struct drm_display_mode *preferred_mode = NULL;
struct drm_connector *drm_connector;
+ const struct drm_connector_state *con_state =
+ dm_state ? &dm_state->base : NULL;
struct dc_stream_state *stream = NULL;
struct drm_display_mode mode = *drm_mode;
bool native_mode_found = false;
@@ -3477,10 +3481,10 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
*/
if (!scale || mode_refresh != preferred_refresh)
fill_stream_properties_from_drm_display_mode(stream,
- &mode, &aconnector->base, NULL);
+ &mode, &aconnector->base, con_state, NULL);
else
fill_stream_properties_from_drm_display_mode(stream,
- &mode, &aconnector->base, old_stream);
+ &mode, &aconnector->base, con_state, old_stream);
update_stream_scaling_settings(&mode, dm_state, stream);
--
2.17.1
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