linux-kernel - [PATCH 10/14] drm/panel/lpm102a188a: Use refcounted allocation in place of devm

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Message-Id: <20250710-b4-driver-convert-last-part-july-v1-10-de73ba81b2f5@redhat.com>
Date: Thu, 10 Jul 2025 23:31:21 -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 10/14] drm/panel/lpm102a188a: 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-lpm102a188a.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c b/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c
index 5b5082efb282bcf705cf2d38dea24901e9803648..5f897e143758c2be51c39a20eeda2ecd09e1fbee 100644
--- a/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c
+++ b/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c
@@ -435,9 +435,6 @@ static int jdi_panel_add(struct jdi_panel *jdi)
 		return dev_err_probe(dev, PTR_ERR(jdi->backlight),
 				     "failed to create backlight\n");
 
-	drm_panel_init(&jdi->base, &jdi->link1->dev, &jdi_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	drm_panel_add(&jdi->base);
 
 	return 0;
@@ -475,10 +472,13 @@ static int jdi_panel_dsi_probe(struct mipi_dsi_device *dsi)
 
 	/* register a panel for only the DSI-LINK1 interface */
 	if (secondary) {
-		jdi = devm_kzalloc(&dsi->dev, sizeof(*jdi), GFP_KERNEL);
-		if (!jdi) {
+		jdi = devm_drm_panel_alloc(&dsi->dev, __typeof(*jdi),
+					   base, &jdi_panel_funcs,
+					   DRM_MODE_CONNECTOR_DSI);
+
+		if (IS_ERR(jdi)) {
 			put_device(&secondary->dev);
-			return -ENOMEM;
+			return PTR_ERR(jdi);
 		}
 
 		mipi_dsi_set_drvdata(dsi, jdi);

-- 
2.48.1