linux-kernel - [PATCH 09/14] drm/panel/jdi-lt070me05000: Use refcounted allocation in place of devm

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Message-Id: <20250710-b4-driver-convert-last-part-july-v1-9-de73ba81b2f5@redhat.com>
Date: Thu, 10 Jul 2025 23:31:20 -0500
From: Anusha Srivatsa <asrivats@...hat.com>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <jessica.zhang@....qualcomm.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>, 
 Florian Fainelli <florian.fainelli@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Sumit Semwal <sumit.semwal@...aro.org>, 
 Casey Connolly <casey.connolly@...aro.org>, 
 Jerry Han <hanxu5@...qin.corp-partner.google.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-rpi-kernel@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
 Anusha Srivatsa <asrivats@...hat.com>
Subject: [PATCH 09/14] drm/panel/jdi-lt070me05000: Use refcounted
 allocation in place of devm_kzalloc()

Move to using the new API devm_drm_panel_alloc() to allocate the
panel. In the call to the new API, avoid using explicit type and use
__typeof() for more type safety.

Signed-off-by: Anusha Srivatsa <asrivats@...hat.com>
---
 drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
index b1ce186de2616be03fa9f94d0e0724141e9dcbac..3513e5c4dd8c6ee3c9c8836e8d150d838d8666cd 100644
--- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
+++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
@@ -402,9 +402,6 @@ static int jdi_panel_add(struct jdi_panel *jdi)
 		return dev_err_probe(dev, PTR_ERR(jdi->backlight),
 				     "failed to register backlight %d\n", ret);
 
-	drm_panel_init(&jdi->base, &jdi->dsi->dev, &jdi_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	drm_panel_add(&jdi->base);
 
 	return 0;
@@ -426,9 +423,11 @@ static int jdi_panel_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags =  MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_VIDEO |
 			   MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	jdi = devm_kzalloc(&dsi->dev, sizeof(*jdi), GFP_KERNEL);
-	if (!jdi)
-		return -ENOMEM;
+	jdi = devm_drm_panel_alloc(&dsi->dev, __typeof(*jdi), base,
+				   &jdi_panel_funcs, DRM_MODE_CONNECTOR_DSI);
+
+	if (IS_ERR(jdi))
+		return PTR_ERR(jdi);
 
 	mipi_dsi_set_drvdata(dsi, jdi);
 

-- 
2.48.1