linux-kernel - [PATCH 45/46] panel/panel-lvds: Use refcounted allocation in place of devm

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Message-Id: <20250403-b4-drm_panel_mass_driver_convert_part3-v1-45-965b15ad5b8e@redhat.com>
Date: Thu, 03 Apr 2025 16:21:16 -0400
From: Anusha Srivatsa <asrivats@...hat.com>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <quic_jesszhan@...cinc.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>, 
 Robert Chiras <robert.chiras@....com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Markuss Broks <markuss.broks@...il.com>, 
 Artur Weber <aweber.kernel@...il.com>, 
 Dzmitry Sankouski <dsankouski@...il.com>, 
 Jagan Teki <jagan@...rulasolutions.com>, 
 Guido Günther <agx@...xcpu.org>, 
 Purism Kernel Team <kernel@...i.sm>, Ondrej Jirman <megi@....cz>, 
 Sasha Finkelstein <fnkl.kernel@...il.com>, Janne Grunau <j@...nau.net>, 
 Michael Trimarchi <michael@...rulasolutions.com>, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 asahi@...ts.linux.dev, Anusha Srivatsa <asrivats@...hat.com>
Subject: [PATCH 45/46] panel/panel-lvds: Use refcounted allocation in place
 of devm_kzalloc()

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Signed-off-by: Anusha Srivatsa <asrivats@...hat.com>
---
 drivers/gpu/drm/panel/panel-lvds.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c
index ba6c015aabba9e03a37058e0fcf7cb39d1595d70..23fd535d8f479045a87b0f51bec17cd7c66b0f75 100644
--- a/drivers/gpu/drm/panel/panel-lvds.c
+++ b/drivers/gpu/drm/panel/panel-lvds.c
@@ -164,9 +164,11 @@ static int panel_lvds_probe(struct platform_device *pdev)
 	struct panel_lvds *lvds;
 	int ret;
 
-	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);
-	if (!lvds)
-		return -ENOMEM;
+	lvds = devm_drm_panel_alloc(&pdev->dev, struct panel_lvds, panel,
+				    &panel_lvds_funcs,
+				    DRM_MODE_CONNECTOR_LVDS);
+	if (IS_ERR(lvds))
+		return PTR_ERR(lvds);
 
 	lvds->dev = &pdev->dev;
 
@@ -214,10 +216,6 @@ static int panel_lvds_probe(struct platform_device *pdev)
 	 * driver.
 	 */
 
-	/* Register the panel. */
-	drm_panel_init(&lvds->panel, lvds->dev, &panel_lvds_funcs,
-		       DRM_MODE_CONNECTOR_LVDS);
-
 	ret = drm_panel_of_backlight(&lvds->panel);
 	if (ret)
 		return ret;

-- 
2.48.1