linux-kernel - [PATCH v2 09/30] panel/ilitek-ili9806e: Use refcounted allocation in place of devm

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Message-Id: <20250403-b4-drm_panel_mass_convert_part2-v2-9-260c8a44c56b@redhat.com>
Date: Thu, 03 Apr 2025 10:16:16 -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>, 
 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 09/30] panel/ilitek-ili9806e: 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-ilitek-ili9806e.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9806e.c b/drivers/gpu/drm/panel/panel-ilitek-ili9806e.c
index a3c79ad99d0bd03f37442c53d4d9dd0e32012ac7..18aa6222b0c557f4ca703922a9728f74ad2848dc 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9806e.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9806e.c
@@ -166,9 +166,10 @@ static int ili9806e_dsi_probe(struct mipi_dsi_device *dsi)
 	struct ili9806e_panel *ctx;
 	int i, ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct ili9806e_panel, panel, &ili9806e_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->desc = device_get_match_data(dev);
 
@@ -192,9 +193,6 @@ static int ili9806e_dsi_probe(struct mipi_dsi_device *dsi)
 	dsi->format = ctx->desc->format;
 	dsi->lanes = ctx->desc->lanes;
 
-	drm_panel_init(&ctx->panel, dev, &ili9806e_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ret = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation);
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get orientation\n");

-- 
2.48.1