linux-kernel - [PATCH v2 07/30] panel/ilitek-ili9341: Use refcounted allocation in place of devm

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Message-Id: <20250403-b4-drm_panel_mass_convert_part2-v2-7-260c8a44c56b@redhat.com>
Date: Thu, 03 Apr 2025 10:16:14 -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 07/30] panel/ilitek-ili9341: 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: Remove drm_panel_init() from the probe. It is taken care of in the
new helper.(Ondrej Jirman)
---
 drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
index ff39f5dd4097e8da0a0e16c50c5bfd45c078d91c..bcd561e06465444440e0a5d143219c06e2121218 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
@@ -490,9 +490,11 @@ static int ili9341_dpi_probe(struct spi_device *spi, struct gpio_desc *dc,
 	struct ili9341 *ili;
 	int ret;
 
-	ili = devm_kzalloc(dev, sizeof(struct ili9341), GFP_KERNEL);
-	if (!ili)
-		return -ENOMEM;
+	ili = devm_drm_panel_alloc(dev, struct ili9341, panel,
+				   &ili9341_dpi_funcs,
+				   DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(ili))
+		return PTR_ERR(ili);
 
 	ili->dbi = devm_kzalloc(dev, sizeof(struct mipi_dbi),
 				GFP_KERNEL);
@@ -526,8 +528,6 @@ static int ili9341_dpi_probe(struct spi_device *spi, struct gpio_desc *dc,
 	}
 
 	ili->max_spi_speed = ili->conf->max_spi_speed;
-	drm_panel_init(&ili->panel, dev, &ili9341_dpi_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
 	drm_panel_add(&ili->panel);
 
 	return 0;

-- 
2.48.1