linux-kernel - [PATCH v2 23/30] panel/novatek-nt35510: Use refcounted allocation in place of devm

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Message-Id: <20250403-b4-drm_panel_mass_convert_part2-v2-23-260c8a44c56b@redhat.com>
Date: Thu, 03 Apr 2025 10:16:30 -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>, 
 Icenowy Zheng <icenowy@...c.io>, Jagan Teki <jagan@...rulasolutions.com>, 
 Ondrej Jirman <megi@....cz>, Javier Martinez Canillas <javierm@...hat.com>, 
 Michael Trimarchi <michael@...rulasolutions.com>, 
 Michael Walle <mwalle@...nel.org>, Jagan Teki <jagan@...eble.ai>, 
 Guido Günther <agx@...xcpu.org>, 
 Purism Kernel Team <kernel@...i.sm>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Jianhua Lu <lujianhua000@...il.com>, Stefan Mavrodiev <stefan@...mex.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Anusha Srivatsa <asrivats@...hat.com>
Subject: [PATCH v2 23/30] panel/novatek-nt35510: 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>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-novatek-nt35510.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-novatek-nt35510.c b/drivers/gpu/drm/panel/panel-novatek-nt35510.c
index 549b86f2cc288741897992ce5cad6325f4289dba..3189d89c7ca00074314a6f4fec330a3e625c24f4 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt35510.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt35510.c
@@ -1087,9 +1087,12 @@ static int nt35510_probe(struct mipi_dsi_device *dsi)
 	struct nt35510 *nt;
 	int ret;
 
-	nt = devm_kzalloc(dev, sizeof(struct nt35510), GFP_KERNEL);
-	if (!nt)
-		return -ENOMEM;
+	nt = devm_drm_panel_alloc(dev, struct nt35510, panel,
+				  &nt35510_drm_funcs,
+				  DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(nt))
+		return PTR_ERR(nt);
+
 	mipi_dsi_set_drvdata(dsi, nt);
 	nt->dev = dev;
 
@@ -1142,9 +1145,6 @@ static int nt35510_probe(struct mipi_dsi_device *dsi)
 		return PTR_ERR(nt->reset_gpio);
 	}
 
-	drm_panel_init(&nt->panel, dev, &nt35510_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	/*
 	 * First, try to locate an external backlight (such as on GPIO)
 	 * if this fails, assume we will want to use the internal backlight

-- 
2.48.1