linux-kernel - [PATCH v3 14/22] drm/tilcdc: Use drm_module_platform

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Message-Id: <20260106-feature_tilcdc-v3-14-9bad0f742164@bootlin.com>
Date: Tue, 06 Jan 2026 18:42:30 +0100
From: "Kory Maincent (TI.com)" <kory.maincent@...tlin.com>
To: Jyri Sarha <jyri.sarha@....fi>, 
 Tomi Valkeinen <tomi.valkeinen@...asonboard.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>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Russell King <linux@...linux.org.uk>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Tony Lindgren <tony@...mide.com>, 
 Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>
Cc: Markus Schneider-Pargmann <msp@...libre.com>, 
 Bajjuri Praneeth <praneeth@...com>, 
 Luca Ceresoli <luca.ceresoli@...tlin.com>, 
 Louis Chauvet <louis.chauvet@...tlin.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Miguel Gazquez <miguel.gazquez@...tlin.com>, 
 Herve Codina <herve.codina@...tlin.com>, dri-devel@...ts.freedesktop.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org, 
 "Kory Maincent (TI.com)" <kory.maincent@...tlin.com>
Subject: [PATCH v3 14/22] drm/tilcdc: Use drm_module_platform_driver()
 helper

Use the drm_module_platform_driver() helper macro to simplify driver
registration. This macro handles both the platform driver registration
and the drm_firmware_drivers_only() check, making the custom init/exit
functions unnecessary.

Signed-off-by: Kory Maincent (TI.com) <kory.maincent@...tlin.com>
---

Change in v3:
- New patch split from previous patch of the series.
---
 drivers/gpu/drm/tilcdc/tilcdc_drv.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 34d0e81552912..a82a2494e23d9 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -20,6 +20,7 @@
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_mm.h>
+#include <drm/drm_module.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_vblank.h>
 
@@ -534,23 +535,7 @@ static struct platform_driver tilcdc_platform_driver = {
 	},
 };
 
-static int __init tilcdc_drm_init(void)
-{
-	if (drm_firmware_drivers_only())
-		return -ENODEV;
-
-	DBG("init");
-	return platform_driver_register(&tilcdc_platform_driver);
-}
-
-static void __exit tilcdc_drm_fini(void)
-{
-	DBG("fini");
-	platform_driver_unregister(&tilcdc_platform_driver);
-}
-
-module_init(tilcdc_drm_init);
-module_exit(tilcdc_drm_fini);
+drm_module_platform_driver(tilcdc_platform_driver);
 
 MODULE_AUTHOR("Rob Clark <robdclark@...il.com");
 MODULE_DESCRIPTION("TI LCD Controller DRM Driver");

-- 
2.43.0