linux-kernel - [PATCH v2 26/30] panel/novatek-nt36523: Use refcounted allocation in place of devm

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Message-Id: <20250403-b4-drm_panel_mass_convert_part2-v2-26-260c8a44c56b@redhat.com>
Date: Thu, 03 Apr 2025 10:16:33 -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 26/30] panel/novatek-nt36523: 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-nt36523.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
index 116d67bfa1140073cc537ec967b77195beeec051..32cf64c7c18be061fc3d38689529f039bf7cea55 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt36523.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
@@ -1171,9 +1171,11 @@ static int nt36523_probe(struct mipi_dsi_device *dsi)
 	const struct mipi_dsi_device_info *info;
 	int i, ret;
 
-	pinfo = devm_kzalloc(dev, sizeof(*pinfo), GFP_KERNEL);
-	if (!pinfo)
-		return -ENOMEM;
+	pinfo = devm_drm_panel_alloc(dev, struct panel_info, panel,
+				     &nt36523_panel_funcs,
+				     DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(pinfo))
+		return PTR_ERR(pinfo);
 
 	pinfo->vddio = devm_regulator_get(dev, "vddio");
 	if (IS_ERR(pinfo->vddio))
@@ -1211,7 +1213,6 @@ static int nt36523_probe(struct mipi_dsi_device *dsi)
 
 	pinfo->dsi[0] = dsi;
 	mipi_dsi_set_drvdata(dsi, pinfo);
-	drm_panel_init(&pinfo->panel, dev, &nt36523_panel_funcs, DRM_MODE_CONNECTOR_DSI);
 
 	ret = of_drm_get_panel_orientation(dev->of_node, &pinfo->orientation);
 	if (ret < 0) {

-- 
2.48.1