From: Vinod Polimera <quic_vpolimer@quicinc.com> To: y@qualcomm.com, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Cc: quic_kalyant@quicinc.com, quic_sbillaka@quicinc.com, dianders@chromium.org, linux-kernel@vger.kernel.org, dmitry.baryshkov@linaro.org, swboyd@chromium.org, Vinod Polimera <quic_vpolimer@quicinc.com> Subject: [v3 3/5] drm/bridge: add psr support during panel bridge enable & disable sequence Date: Tue, 21 Jun 2022 16:23:18 +0530 [thread overview] Message-ID: <1655808800-3996-4-git-send-email-quic_vpolimer@quicinc.com> (raw) In-Reply-To: <1655808800-3996-1-git-send-email-quic_vpolimer@quicinc.com> This change avoids panel prepare/unprepare based on self-refresh state. Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com> Signed-off-by: Kalyan Thota <quic_kalyant@quicinc.com> Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com> --- drivers/gpu/drm/bridge/panel.c | 102 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 98 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 59a3496..6b09ae0 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -41,6 +41,40 @@ static int panel_bridge_connector_get_modes(struct drm_connector *connector) return drm_panel_get_modes(panel_bridge->panel, connector); } +static struct drm_crtc *bridge_drm_get_old_connector_crtc(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *conn_state; + + connector = drm_atomic_get_old_connector_for_encoder(state, encoder); + if (!connector) + return NULL; + + conn_state = drm_atomic_get_old_connector_state(state, connector); + if (!conn_state) + return NULL; + + return conn_state->crtc; +} + +static struct drm_crtc *bridge_drm_get_new_connector_crtc(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *conn_state; + + connector = drm_atomic_get_new_connector_for_encoder(state, encoder); + if (!connector) + return NULL; + + conn_state = drm_atomic_get_new_connector_state(state, connector); + if (!conn_state) + return NULL; + + return conn_state->crtc; +} + static const struct drm_connector_helper_funcs panel_bridge_connector_helper_funcs = { .get_modes = panel_bridge_connector_get_modes, @@ -108,30 +142,90 @@ static void panel_bridge_detach(struct drm_bridge *bridge) drm_connector_cleanup(connector); } -static void panel_bridge_atomic_pre_enable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state; + + crtc = bridge_drm_get_new_connector_crtc(encoder, old_state); + if (!crtc) + return; + + old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc); + + /* Don't touch the panel if we're coming back from self refresh state */ + if (old_crtc_state && old_crtc_state->self_refresh_active) + return; drm_panel_prepare(panel_bridge->panel); } -static void panel_bridge_atomic_enable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state; + + crtc = bridge_drm_get_new_connector_crtc(encoder, old_state); + if (!crtc) + return; + + old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc); + + /* Don't touch the panel if we're coming back from self refresh state */ + if (old_crtc_state && old_crtc_state->self_refresh_active) + return; drm_panel_enable(panel_bridge->panel); } -static void panel_bridge_atomic_disable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + + crtc = bridge_drm_get_old_connector_crtc(encoder, old_state); + if (!crtc) + return; + + new_crtc_state = drm_atomic_get_new_crtc_state(old_state, crtc); + + /* Don't do a full disable on PSR transitions if new state is self refresh state */ + if (new_crtc_state && new_crtc_state->self_refresh_active) + return; drm_panel_disable(panel_bridge->panel); } -static void panel_bridge_atomic_post_disable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + + crtc = bridge_drm_get_old_connector_crtc(encoder, old_state); + if (!crtc) + return; + + new_crtc_state = drm_atomic_get_new_crtc_state(old_state, crtc); + + /* Don't do unprepare on PSR transitions if new state is self refresh state */ + if (new_crtc_state && new_crtc_state->self_refresh_active) + return; drm_panel_unprepare(panel_bridge->panel); } -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Vinod Polimera <quic_vpolimer@quicinc.com> To: y@qualcomm.com, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Cc: Vinod Polimera <quic_vpolimer@quicinc.com>, linux-kernel@vger.kernel.org, robdclark@gmail.com, dianders@chromium.org, swboyd@chromium.org, quic_kalyant@quicinc.com, dmitry.baryshkov@linaro.org, quic_sbillaka@quicinc.com Subject: [v3 3/5] drm/bridge: add psr support during panel bridge enable & disable sequence Date: Tue, 21 Jun 2022 16:23:18 +0530 [thread overview] Message-ID: <1655808800-3996-4-git-send-email-quic_vpolimer@quicinc.com> (raw) In-Reply-To: <1655808800-3996-1-git-send-email-quic_vpolimer@quicinc.com> This change avoids panel prepare/unprepare based on self-refresh state. Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com> Signed-off-by: Kalyan Thota <quic_kalyant@quicinc.com> Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com> --- drivers/gpu/drm/bridge/panel.c | 102 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 98 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 59a3496..6b09ae0 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -41,6 +41,40 @@ static int panel_bridge_connector_get_modes(struct drm_connector *connector) return drm_panel_get_modes(panel_bridge->panel, connector); } +static struct drm_crtc *bridge_drm_get_old_connector_crtc(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *conn_state; + + connector = drm_atomic_get_old_connector_for_encoder(state, encoder); + if (!connector) + return NULL; + + conn_state = drm_atomic_get_old_connector_state(state, connector); + if (!conn_state) + return NULL; + + return conn_state->crtc; +} + +static struct drm_crtc *bridge_drm_get_new_connector_crtc(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *conn_state; + + connector = drm_atomic_get_new_connector_for_encoder(state, encoder); + if (!connector) + return NULL; + + conn_state = drm_atomic_get_new_connector_state(state, connector); + if (!conn_state) + return NULL; + + return conn_state->crtc; +} + static const struct drm_connector_helper_funcs panel_bridge_connector_helper_funcs = { .get_modes = panel_bridge_connector_get_modes, @@ -108,30 +142,90 @@ static void panel_bridge_detach(struct drm_bridge *bridge) drm_connector_cleanup(connector); } -static void panel_bridge_atomic_pre_enable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state; + + crtc = bridge_drm_get_new_connector_crtc(encoder, old_state); + if (!crtc) + return; + + old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc); + + /* Don't touch the panel if we're coming back from self refresh state */ + if (old_crtc_state && old_crtc_state->self_refresh_active) + return; drm_panel_prepare(panel_bridge->panel); } -static void panel_bridge_atomic_enable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state; + + crtc = bridge_drm_get_new_connector_crtc(encoder, old_state); + if (!crtc) + return; + + old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc); + + /* Don't touch the panel if we're coming back from self refresh state */ + if (old_crtc_state && old_crtc_state->self_refresh_active) + return; drm_panel_enable(panel_bridge->panel); } -static void panel_bridge_atomic_disable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + + crtc = bridge_drm_get_old_connector_crtc(encoder, old_state); + if (!crtc) + return; + + new_crtc_state = drm_atomic_get_new_crtc_state(old_state, crtc); + + /* Don't do a full disable on PSR transitions if new state is self refresh state */ + if (new_crtc_state && new_crtc_state->self_refresh_active) + return; drm_panel_disable(panel_bridge->panel); } -static void panel_bridge_atomic_post_disable(struct drm_bridge *bridge) +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 *old_state = old_bridge_state->base.state; + struct drm_encoder *encoder = bridge->encoder; + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + + crtc = bridge_drm_get_old_connector_crtc(encoder, old_state); + if (!crtc) + return; + + new_crtc_state = drm_atomic_get_new_crtc_state(old_state, crtc); + + /* Don't do unprepare on PSR transitions if new state is self refresh state */ + if (new_crtc_state && new_crtc_state->self_refresh_active) + return; drm_panel_unprepare(panel_bridge->panel); } -- 2.7.4
next prev parent reply other threads:[~2022-06-21 10:53 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-06-21 10:53 [v3 0/5] Add PSR support for eDP Vinod Polimera 2022-06-21 10:53 ` Vinod Polimera 2022-06-21 10:53 ` [v3 1/5] drm/msm/dp: Add basic " Vinod Polimera 2022-06-21 10:53 ` Vinod Polimera 2022-06-21 18:53 ` Dmitry Baryshkov 2022-06-21 18:53 ` Dmitry Baryshkov 2022-06-29 13:38 ` Sankeerth Billakanti (QUIC) 2022-06-29 13:38 ` Sankeerth Billakanti (QUIC) 2022-06-21 10:53 ` [v3 2/5] drm/bridge: use atomic enable/disable callbacks for panel bridge functions Vinod Polimera 2022-06-21 10:53 ` Vinod Polimera 2022-06-21 18:54 ` Dmitry Baryshkov 2022-06-21 18:54 ` Dmitry Baryshkov 2022-06-21 18:56 ` Dmitry Baryshkov 2022-06-21 18:56 ` Dmitry Baryshkov 2022-06-21 10:53 ` Vinod Polimera [this message] 2022-06-21 10:53 ` [v3 3/5] drm/bridge: add psr support during panel bridge enable & disable sequence Vinod Polimera 2022-06-21 18:59 ` Dmitry Baryshkov 2022-06-21 18:59 ` Dmitry Baryshkov 2022-06-29 13:48 ` Sankeerth Billakanti (QUIC) 2022-06-29 13:48 ` Sankeerth Billakanti (QUIC) 2022-06-21 10:53 ` [v3 4/5] drm/msm/disp/dpu1: use atomic enable/disable callbacks for encoder functions Vinod Polimera 2022-06-21 10:53 ` Vinod Polimera 2022-06-21 19:00 ` Dmitry Baryshkov 2022-06-21 19:00 ` Dmitry Baryshkov 2022-06-21 10:53 ` [v3 5/5] drm/msm/disp/dpu1: add PSR support for eDP interface in dpu driver Vinod Polimera 2022-06-21 10:53 ` Vinod Polimera 2022-06-21 19:09 ` Dmitry Baryshkov 2022-06-21 19:09 ` Dmitry Baryshkov 2022-06-22 21:21 ` kernel test robot 2022-06-22 21:21 ` kernel test robot 2022-06-21 18:40 ` [v3 0/5] Add PSR support for eDP Dmitry Baryshkov 2022-06-21 18:40 ` Dmitry Baryshkov
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