linux-kernel - [PATCH 5/7] drm/bridge: analogix_dp: inline analogix_dp_prepare

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Message-Id: <20250401-panel-return-void-v1-5-93e1be33dc8d@oss.qualcomm.com>
Date: Tue, 01 Apr 2025 08:11:37 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
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>, Simona Vetter <simona@...ll.ch>,
        Jessica Zhang <quic_jesszhan@...cinc.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/7] drm/bridge: analogix_dp: inline
 analogix_dp_prepare_panel()

The analogix_dp_prepare_panel() is now only calling a corresponding
drm_panel function. Inline it to simplify the code.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 43 +++++-----------------
 1 file changed, 10 insertions(+), 33 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 1ec4d277fe6bb03ad9eb8451ae2af5ad5ada0978..f60068011008482f7b7b2edfcab5fb1b3e9e130f 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -955,33 +955,6 @@ static int analogix_dp_disable_psr(struct analogix_dp_device *dp)
 	return analogix_dp_send_psr_spd(dp, &psr_vsc, true);
 }
 
-/*
- * This function is a bit of a catch-all for panel preparation, hopefully
- * simplifying the logic of functions that need to prepare/unprepare the panel
- * below.
- *
- * If @prepare is true, this function will prepare the panel. Conversely, if it
- * is false, the panel will be unprepared.
- *
- * The function will disregard the current state
- * of the panel and either prepare/unprepare the panel based on @prepare.
- */
-static int analogix_dp_prepare_panel(struct analogix_dp_device *dp,
-				     bool prepare)
-{
-	int ret = 0;
-
-	if (!dp->plat_data->panel)
-		return 0;
-
-	if (prepare)
-		ret = drm_panel_prepare(dp->plat_data->panel);
-	else
-		ret = drm_panel_unprepare(dp->plat_data->panel);
-
-	return ret;
-}
-
 static int analogix_dp_get_modes(struct drm_connector *connector)
 {
 	struct analogix_dp_device *dp = to_dp(connector);
@@ -1174,9 +1147,11 @@ static void analogix_dp_bridge_atomic_pre_enable(struct drm_bridge *bridge,
 	if (old_crtc_state && old_crtc_state->self_refresh_active)
 		return;
 
-	ret = analogix_dp_prepare_panel(dp, true);
-	if (ret)
-		DRM_ERROR("failed to setup the panel ret = %d\n", ret);
+	if (dp->plat_data->panel) {
+		ret = drm_panel_prepare(dp->plat_data->panel);
+		if (ret)
+			DRM_ERROR("failed to prepare the panel ret = %d\n", ret);
+	}
 }
 
 static int analogix_dp_set_bridge(struct analogix_dp_device *dp)
@@ -1274,9 +1249,11 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
 
 	pm_runtime_put_sync(dp->dev);
 
-	ret = analogix_dp_prepare_panel(dp, false);
-	if (ret)
-		DRM_ERROR("failed to setup the panel ret = %d\n", ret);
+	if (dp->plat_data->panel) {
+		ret = drm_panel_unprepare(dp->plat_data->panel);
+		if (ret)
+			DRM_ERROR("failed to unprepare the panel ret = %d\n", ret);
+	}
 
 	dp->fast_train_enable = false;
 	dp->psr_supported = false;

-- 
2.39.5