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drm/msm/dp: support setting the DP subconnector type

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Read the downstream port info and set the subconnector type accordingly.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/555531/
Link: https://lore.kernel.org/r/20230903222432.2894093-1-dmitry.baryshkov@linaro.org
This commit is contained in:
Dmitry Baryshkov 2023-09-04 01:24:32 +03:00
parent 6398e4d4ca
commit bfcc3d8f94
3 changed files with 14 additions and 1 deletions
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9
drivers/gpu/drm/msm/dp/dp_display.c
View file

@ -364,8 +364,12 @@ static int dp_display_send_hpd_notification(struct dp_display_private *dp,
} }
/* reset video pattern flag on disconnect */ /* reset video pattern flag on disconnect */
if (!hpd) if (!hpd) {
dp->panel->video_test = false; dp->panel->video_test = false;
drm_dp_set_subconnector_property(dp->dp_display.connector,
connector_status_disconnected,
dp->panel->dpcd, dp->panel->downstream_ports);
}
dp->dp_display.is_connected = hpd; dp->dp_display.is_connected = hpd;
@ -393,6 +397,9 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp)
dp_link_process_request(dp->link); dp_link_process_request(dp->link);
drm_dp_set_subconnector_property(dp->dp_display.connector, connector_status_connected,
dp->panel->dpcd, dp->panel->downstream_ports);
edid = dp->panel->edid; edid = dp->panel->edid;
dp->dp_display.psr_supported = dp->panel->psr_cap.version && psr_enabled; dp->dp_display.psr_supported = dp->panel->psr_cap.version && psr_enabled;

5
drivers/gpu/drm/msm/dp/dp_panel.c
View file

@ -161,6 +161,11 @@ int dp_panel_read_sink_caps(struct dp_panel *dp_panel,
} }
} }
rc = drm_dp_read_downstream_info(panel->aux, dp_panel->dpcd,
dp_panel->downstream_ports);
if (rc)
return rc;
kfree(dp_panel->edid); kfree(dp_panel->edid);
dp_panel->edid = NULL; dp_panel->edid = NULL;

1
drivers/gpu/drm/msm/dp/dp_panel.h
View file

@ -36,6 +36,7 @@ struct dp_panel_psr {
struct dp_panel { struct dp_panel {
/* dpcd raw data */ /* dpcd raw data */
u8 dpcd[DP_RECEIVER_CAP_SIZE]; u8 dpcd[DP_RECEIVER_CAP_SIZE];
u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
struct dp_link_info link_info; struct dp_link_info link_info;
struct drm_dp_desc desc; struct drm_dp_desc desc;