linux-kernel - [PATCH v4 5/9] drm/msm/hdmi: turn mode_set into atomic

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Message-Id: <20240531-bridge-hdmi-connector-v4-5-5110f7943622@linaro.org>
Date: Fri, 31 May 2024 23:07:28 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
 Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>
Cc: dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: [PATCH v4 5/9] drm/msm/hdmi: turn mode_set into atomic_enable

The mode_set callback is deprecated, it doesn't get the
drm_bridge_state, just mode-related argumetns. Turn it into the
atomic_enable callback as suggested by the documentation.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 33 ++++++++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index d839c71091dc..f259d6268c0f 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -129,12 +129,25 @@ static void msm_hdmi_config_avi_infoframe(struct hdmi *hdmi)
 static void msm_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
 					      struct drm_bridge_state *old_bridge_state)
 {
+	struct drm_atomic_state *state = old_bridge_state->base.state;
 	struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
 	struct hdmi *hdmi = hdmi_bridge->hdmi;
 	struct hdmi_phy *phy = hdmi->phy;
+	struct drm_encoder *encoder = bridge->encoder;
+	struct drm_connector *connector;
+	struct drm_connector_state *conn_state;
+	struct drm_crtc_state *crtc_state;
+	const struct drm_display_mode *mode;
 
 	DBG("power up");
 
+	connector = drm_atomic_get_new_connector_for_encoder(state, encoder);
+	conn_state = drm_atomic_get_new_connector_state(state, connector);
+	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
+	mode = &crtc_state->adjusted_mode;
+
+	hdmi->pixclock = mode->clock * 1000;
+
 	if (!hdmi->power_on) {
 		msm_hdmi_phy_resource_enable(phy);
 		msm_hdmi_power_on(bridge);
@@ -177,18 +190,24 @@ static void msm_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
 	}
 }
 
-static void msm_hdmi_bridge_mode_set(struct drm_bridge *bridge,
-		 const struct drm_display_mode *mode,
-		 const struct drm_display_mode *adjusted_mode)
+static void msm_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
+					  struct drm_bridge_state *old_bridge_state)
 {
+	struct drm_atomic_state *state = old_bridge_state->base.state;
 	struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
 	struct hdmi *hdmi = hdmi_bridge->hdmi;
+	struct drm_encoder *encoder = bridge->encoder;
+	struct drm_connector *connector;
+	struct drm_connector_state *conn_state;
+	struct drm_crtc_state *crtc_state;
+	const struct drm_display_mode *mode;
 	int hstart, hend, vstart, vend;
 	uint32_t frame_ctrl;
 
-	mode = adjusted_mode;
-
-	hdmi->pixclock = mode->clock * 1000;
+	connector = drm_atomic_get_new_connector_for_encoder(state, encoder);
+	conn_state = drm_atomic_get_new_connector_state(state, connector);
+	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
+	mode = &crtc_state->adjusted_mode;
 
 	hstart = mode->htotal - mode->hsync_start;
 	hend   = mode->htotal - mode->hsync_start + mode->hdisplay;
@@ -305,8 +324,8 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_funcs = {
 	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
 	.atomic_reset = drm_atomic_helper_bridge_reset,
 	.atomic_pre_enable = msm_hdmi_bridge_atomic_pre_enable,
+	.atomic_enable = msm_hdmi_bridge_atomic_enable,
 	.atomic_post_disable = msm_hdmi_bridge_atomic_post_disable,
-	.mode_set = msm_hdmi_bridge_mode_set,
 	.mode_valid = msm_hdmi_bridge_mode_valid,
 	.edid_read = msm_hdmi_bridge_edid_read,
 	.detect = msm_hdmi_bridge_detect,

-- 
2.39.2