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drm/bridge: analogix_dp: Fix stream valid control

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Add DT property 'analogix,force-stream-valid' to DTS node
if want to support vrr.

Fixes: 2abd3af02c ("drm/bridge: analogix_dp: Use video format information from register")
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
Change-Id: Ic4624e4ca3a03322f1d9520a7e3cee0d054c36ee
This commit is contained in:
Wyon Bi
2022-10-09 09:51:03 +00:00
committed by Tao Huang
parent 6ab995ba97
commit 50bc70c3f6
3 changed files with 8 additions and 3 deletions
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2
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
View File

@@ -1998,6 +1998,8 @@ static int analogix_dp_dt_parse_pdata(struct analogix_dp_device *dp)
video_info->video_bist_enable =
of_property_read_bool(dp_node, "analogix,video-bist-enable");
video_info->force_stream_valid =
of_property_read_bool(dp_node, "analogix,force-stream-valid");
prop = of_find_property(dp_node, "data-lanes", &len);
if (!prop) {

1
drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
View File

@@ -142,6 +142,7 @@ struct video_info {
u32 lane_map[4];
bool video_bist_enable;
bool force_stream_valid;
};
struct link_train {

8
drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
View File

@@ -790,9 +790,11 @@ void analogix_dp_init_video(struct analogix_dp_device *dp)
reg = CHA_CRI(4) | CHA_CTRL;
analogix_dp_write(dp, ANALOGIX_DP_SYS_CTL_2, reg);
reg = analogix_dp_read(dp, ANALOGIX_DP_SYS_CTL_3);
reg |= VALID_CTRL | F_VALID;
analogix_dp_write(dp, ANALOGIX_DP_SYS_CTL_3, reg);
if (dp->video_info.force_stream_valid) {
reg = analogix_dp_read(dp, ANALOGIX_DP_SYS_CTL_3);
reg |= VALID_CTRL | F_VALID;
analogix_dp_write(dp, ANALOGIX_DP_SYS_CTL_3, reg);
}
reg = VID_HRES_TH(2) | VID_VRES_TH(0);
analogix_dp_write(dp, ANALOGIX_DP_VIDEO_CTL_8, reg);