linux-kernel - [PATCH v2 19/30] panel/magnachip-d53e6ea8966: Use refcounted allocation in place of devm

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Message-Id: <20250403-b4-drm_panel_mass_convert_part2-v2-19-260c8a44c56b@redhat.com>
Date: Thu, 03 Apr 2025 10:16:26 -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 19/30] panel/magnachip-d53e6ea8966: 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-magnachip-d53e6ea8966.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c b/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c
index 799c2161fc85b24e1fb236fd63b397bf66fc15c8..ee225286ce6df0ce48cf7a2c60d600332d02ed86 100644
--- a/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c
+++ b/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c
@@ -370,9 +370,11 @@ static int d53e6ea8966_probe(struct spi_device *spi)
 		.node = NULL,
 	};
 
-	db = devm_kzalloc(dev, sizeof(*db), GFP_KERNEL);
-	if (!db)
-		return -ENOMEM;
+	db = devm_drm_panel_alloc(dev, struct ili9881c, panel,
+				  &d53e6ea8966_panel_funcs,
+				  DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(db))
+		return PTR_ERR(db);
 
 	spi_set_drvdata(spi, db);
 
@@ -425,9 +427,6 @@ static int d53e6ea8966_probe(struct spi_device *spi)
 	db->dsi_dev->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
 
-	drm_panel_init(&db->panel, dev, &d53e6ea8966_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	if (db->panel_info->backlight_register) {
 		ret = db->panel_info->backlight_register(db);
 		if (ret < 0)

-- 
2.48.1