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drm/bridge: add psr support for panel bridge callbacks

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This change will handle the psr entry exit cases in the panel
bridge atomic callback functions. For example, the panel power
should not turn off if the panel is entering psr.

Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Patchwork: https://patchwork.freedesktop.org/patch/524721/
Link: https://lore.kernel.org/r/1677774797-31063-4-git-send-email-quic_vpolimer@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Vinod Polimera 2023-03-02 22:03:06 +05:30 committed by Dmitry Baryshkov
parent b67e0f530f
commit d011db300d
1 changed files with 48 additions and 0 deletions
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48
drivers/gpu/drm/bridge/panel.c
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@ -113,6 +113,18 @@ static void panel_bridge_atomic_pre_enable(struct drm_bridge *bridge,
struct drm_bridge_state *old_bridge_state)
{
struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
struct drm_atomic_state *atomic_state = old_bridge_state->base.state;
struct drm_encoder *encoder = bridge->encoder;
struct drm_crtc *crtc;
struct drm_crtc_state *old_crtc_state;
crtc = drm_atomic_get_new_crtc_for_encoder(atomic_state, encoder);
if (!crtc)
return;
old_crtc_state = drm_atomic_get_old_crtc_state(atomic_state, crtc);
if (old_crtc_state && old_crtc_state->self_refresh_active)
return;
drm_panel_prepare(panel_bridge->panel);
}
@ -121,6 +133,18 @@ static void panel_bridge_atomic_enable(struct drm_bridge *bridge,
struct drm_bridge_state *old_bridge_state)
{
struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
struct drm_atomic_state *atomic_state = old_bridge_state->base.state;
struct drm_encoder *encoder = bridge->encoder;
struct drm_crtc *crtc;
struct drm_crtc_state *old_crtc_state;
crtc = drm_atomic_get_new_crtc_for_encoder(atomic_state, encoder);
if (!crtc)
return;
old_crtc_state = drm_atomic_get_old_crtc_state(atomic_state, crtc);
if (old_crtc_state && old_crtc_state->self_refresh_active)
return;
drm_panel_enable(panel_bridge->panel);
}
@ -129,6 +153,18 @@ static void panel_bridge_atomic_disable(struct drm_bridge *bridge,
struct drm_bridge_state *old_bridge_state)
{
struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
struct drm_atomic_state *atomic_state = old_bridge_state->base.state;
struct drm_encoder *encoder = bridge->encoder;
struct drm_crtc *crtc;
struct drm_crtc_state *new_crtc_state;
crtc = drm_atomic_get_old_crtc_for_encoder(atomic_state, encoder);
if (!crtc)
return;
new_crtc_state = drm_atomic_get_new_crtc_state(atomic_state, crtc);
if (new_crtc_state && new_crtc_state->self_refresh_active)
return;
drm_panel_disable(panel_bridge->panel);
}
@ -137,6 +173,18 @@ static void panel_bridge_atomic_post_disable(struct drm_bridge *bridge,
struct drm_bridge_state *old_bridge_state)
{
struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
struct drm_atomic_state *atomic_state = old_bridge_state->base.state;
struct drm_encoder *encoder = bridge->encoder;
struct drm_crtc *crtc;
struct drm_crtc_state *new_crtc_state;
crtc = drm_atomic_get_old_crtc_for_encoder(atomic_state, encoder);
if (!crtc)
return;
new_crtc_state = drm_atomic_get_new_crtc_state(atomic_state, crtc);
if (new_crtc_state && new_crtc_state->self_refresh_active)
return;
drm_panel_unprepare(panel_bridge->panel);
}