| Message ID | 20250225121824.3869719-10-quic_amakhija@quicinc.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Add DSI display support for SA8775P target | expand |
On Tue, Feb 25, 2025 at 05:48:22PM +0530, Ayushi Makhija wrote: > When device enters the suspend state, it prevents > HPD interrupts from occurring. To address this, > add an additional PM runtime vote during bridge > attach for DisplayPort. This vote is removed on > bridge detach. Well.. You can guess. The bridges have .hpd_enable() and .hpd_disable() callbacks. Please use those instead. > > Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com> > --- > drivers/gpu/drm/bridge/analogix/anx7625.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c > index 4be34d5c7a3b..d2655bf46842 100644 > --- a/drivers/gpu/drm/bridge/analogix/anx7625.c > +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c > @@ -2168,6 +2168,9 @@ static int anx7625_bridge_attach(struct drm_bridge *bridge, > > ctx->bridge_attached = 1; > > + if (ctx->pdata.panel_bridge->type == DRM_MODE_CONNECTOR_DisplayPort) > + pm_runtime_get_sync(dev); > + > return 0; > } > > @@ -2175,6 +2178,9 @@ static void anx7625_bridge_detach(struct drm_bridge *bridge) > { > struct anx7625_data *ctx = bridge_to_anx7625(bridge); > > + if (ctx->pdata.panel_bridge->type == DRM_MODE_CONNECTOR_DisplayPort) > + pm_runtime_put_sync(ctx->dev); > + > drm_dp_aux_unregister(&ctx->aux); > } > > -- > 2.34.1 >
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 4be34d5c7a3b..d2655bf46842 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -2168,6 +2168,9 @@ static int anx7625_bridge_attach(struct drm_bridge *bridge, ctx->bridge_attached = 1; + if (ctx->pdata.panel_bridge->type == DRM_MODE_CONNECTOR_DisplayPort) + pm_runtime_get_sync(dev); + return 0; } @@ -2175,6 +2178,9 @@ static void anx7625_bridge_detach(struct drm_bridge *bridge) { struct anx7625_data *ctx = bridge_to_anx7625(bridge); + if (ctx->pdata.panel_bridge->type == DRM_MODE_CONNECTOR_DisplayPort) + pm_runtime_put_sync(ctx->dev); + drm_dp_aux_unregister(&ctx->aux); }
When device enters the suspend state, it prevents HPD interrupts from occurring. To address this, add an additional PM runtime vote during bridge attach for DisplayPort. This vote is removed on bridge detach. Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com> --- drivers/gpu/drm/bridge/analogix/anx7625.c | 6 ++++++ 1 file changed, 6 insertions(+)