linux-kernel - [PATCH v4 4/7] drm/bridge: use atomic enable/disable callbacks for panel bridge

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Message-Id: <1657040445-13067-5-git-send-email-quic_vpolimer@quicinc.com>
Date:   Tue,  5 Jul 2022 22:30:42 +0530
From:   Vinod Polimera <quic_vpolimer@...cinc.com>
To:     dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc:     Vinod Polimera <quic_vpolimer@...cinc.com>,
        linux-kernel@...r.kernel.org, robdclark@...il.com,
        dianders@...omium.org, swboyd@...omium.org,
        quic_kalyant@...cinc.com, dmitry.baryshkov@...aro.org,
        quic_khsieh@...cinc.com, quic_vproddut@...cinc.com,
        bjorn.andersson@...aro.org, quic_aravindh@...cinc.com,
        quic_abhinavk@...cinc.com, quic_sbillaka@...cinc.com
Subject: [PATCH v4 4/7] drm/bridge: use atomic enable/disable callbacks for panel bridge

Use atomic variants for panel bridge callback functions such that
certain states like self-refresh can be accessed as part of
enable/disable sequence.

Signed-off-by: Sankeerth Billakanti <quic_sbillaka@...cinc.com>
Signed-off-by: Vinod Polimera <quic_vpolimer@...cinc.com>
---
 drivers/gpu/drm/bridge/panel.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c
index 0ee563e..eeb9546 100644
--- a/drivers/gpu/drm/bridge/panel.c
+++ b/drivers/gpu/drm/bridge/panel.c
@@ -108,28 +108,32 @@ static void panel_bridge_detach(struct drm_bridge *bridge)
 		drm_connector_cleanup(connector);
 }
 
-static void panel_bridge_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);
 
 	drm_panel_prepare(panel_bridge->panel);
 }
 
-static void panel_bridge_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);
 
 	drm_panel_enable(panel_bridge->panel);
 }
 
-static void panel_bridge_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);
 
 	drm_panel_disable(panel_bridge->panel);
 }
 
-static void panel_bridge_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);
 
@@ -158,10 +162,10 @@ static void panel_bridge_debugfs_init(struct drm_bridge *bridge,
 static const struct drm_bridge_funcs panel_bridge_bridge_funcs = {
 	.attach = panel_bridge_attach,
 	.detach = panel_bridge_detach,
-	.pre_enable = panel_bridge_pre_enable,
-	.enable = panel_bridge_enable,
-	.disable = panel_bridge_disable,
-	.post_disable = panel_bridge_post_disable,
+	.atomic_pre_enable = panel_bridge_atomic_pre_enable,
+	.atomic_enable = panel_bridge_atomic_enable,
+	.atomic_disable = panel_bridge_atomic_disable,
+	.atomic_post_disable = panel_bridge_atomic_post_disable,
 	.get_modes = panel_bridge_get_modes,
 	.atomic_reset = drm_atomic_helper_bridge_reset,
 	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
-- 
2.7.4