linux-kernel - [PATCH 23/46] panel/seiko-43wvf1g: Use refcounted allocation in place of devm

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Message-Id: <20250403-b4-drm_panel_mass_driver_convert_part3-v1-23-965b15ad5b8e@redhat.com>
Date: Thu, 03 Apr 2025 16:20:54 -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>, 
 Robert Chiras <robert.chiras@....com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Markuss Broks <markuss.broks@...il.com>, 
 Artur Weber <aweber.kernel@...il.com>, 
 Dzmitry Sankouski <dsankouski@...il.com>, 
 Jagan Teki <jagan@...rulasolutions.com>, 
 Guido Günther <agx@...xcpu.org>, 
 Purism Kernel Team <kernel@...i.sm>, Ondrej Jirman <megi@....cz>, 
 Sasha Finkelstein <fnkl.kernel@...il.com>, Janne Grunau <j@...nau.net>, 
 Michael Trimarchi <michael@...rulasolutions.com>, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 asahi@...ts.linux.dev, Anusha Srivatsa <asrivats@...hat.com>
Subject: [PATCH 23/46] panel/seiko-43wvf1g: 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>
---
 drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
index 7d1b421ea9ddfcf84850a2fc589f7a43e24fc167..fba63607adad390ad34442d2d754a95e42833a5f 100644
--- a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
+++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
@@ -204,9 +204,11 @@ static int seiko_panel_probe(struct device *dev,
 	struct seiko_panel *panel;
 	int err;
 
-	panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
-	if (!panel)
-		return -ENOMEM;
+	panel = devm_drm_panel_alloc(dev, struct seiko_panel, base,
+				     &seiko_panel_funcs,
+				     DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(panel))
+		return PTR_ERR(panel);
 
 	panel->desc = desc;
 
@@ -224,9 +226,6 @@ static int seiko_panel_probe(struct device *dev,
 		return dev_err_probe(dev, PTR_ERR(panel->enable_gpio),
 				     "failed to request GPIO\n");
 
-	drm_panel_init(&panel->base, dev, &seiko_panel_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	err = drm_panel_of_backlight(&panel->base);
 	if (err)
 		return err;

-- 
2.48.1