linux-kernel - [RESEND] drm: atmel-hlcdc: Fix module autoload for OF platform driver

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Date:	Mon, 30 Nov 2015 14:41:57 +0000
From:	Luis de Bethencourt <luisbg@....samsung.com>
To:	linux-kernel@...r.kernel.org
Cc:	boris.brezillon@...e-electrons.com, airlied@...ux.ie,
	dri-devel@...ts.freedesktop.org, akpm@...ux-foundation.org,
	Luis de Bethencourt <luis@...ethencourt.com>,
	Luis de Bethencourt <luisbg@....samsung.com>
Subject: [RESEND] drm: atmel-hlcdc: Fix module autoload for OF platform driver

From: Luis de Bethencourt <luis@...ethencourt.com>

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@....samsung.com>
Acked-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
---

Hi,

This is a resend of a patch from October 20th and September 17th [0]

Adding Andrew Morton to the CC list, as recommended at Korea Linux Forum.

This patch adds the missing MODULE_DEVICE_TABLE() for OF to export
that information so modules have the correct aliases built-in and
autoloading works correctly.

A longer explanation by Javier Canillas can be found here:
https://lkml.org/lkml/2015/7/30/519
A multitude of similar patches have been merged for other drivers, search
the git log for "module autoload for OF platform driver".

Thanks,
Luis

[0] https://lkml.org/lkml/2015/9/17/427

 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index 8168954..92905f0 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -342,6 +342,7 @@ static const struct of_device_id atmel_hlcdc_of_match[] = {
 	},
 	{ /* sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, atmel_hlcdc_of_match);
 
 int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc,
 			      struct drm_display_mode *mode)
-- 
2.5.3

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