linux-kernel - Re: [PATCH] video: exynos: fix modular build

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Date:	Wed, 20 May 2015 10:14:21 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Arnd Bergmann <arnd@...db.de>, linux-fbdev@...r.kernel.org
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Kukjin Kim <kgene@...nel.org>, Inki Dae <inki.dae@...sung.com>,
	Donghwa Lee <dh09.lee@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [PATCH] video: exynos: fix modular build

On 19.05.2015 21:17, Arnd Bergmann wrote:
> The s6e8ax0 driver has a dependency on BACKLIGHT_CLASS_DEVICE,
> which can be configured as a loadable module, so we have to
> make the driver a tristate symbol as well, to avoid this error:
> 
> drivers/built-in.o: In function `s6e8ax0_probe':
> :(.text+0x23a48): undefined reference to `devm_backlight_device_register'
> 
> This also means we get another error from a missing export, which
> this fixes as well:
> 
> ERROR: "exynos_mipi_dsi_register_lcd_driver" [drivers/video/fbdev/exynos/s6e8ax0.ko] undefined!
> 
> Finally, the EXYNOS_VIDEO option is turned into tristate as well
> for good measure, as all framebuffer drivers should be configurable
> as modules.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>


Looks good:
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Best regards,
Krzysztof
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