linux-kernel - Re: [PATCH] tinydrm: repaper: add CONFIG

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Date:   Sat, 29 Jul 2017 14:43:48 +0200
From:   Noralf Trønnes <noralf@...nnes.org>
To:     Arnd Bergmann <arnd@...db.de>, David Airlie <airlied@...ux.ie>
Cc:     Thierry Reding <treding@...dia.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tinydrm: repaper: add CONFIG_THERMAL dependency


Den 27.07.2017 11.58, skrev Arnd Bergmann:
> The new RePaper driver uses the thermal subsystem, and fails to link
> when it is built-in but thermal is a loadable module:
>
> drivers/gpu/drm/tinydrm/repaper.o: In function `repaper_probe':
> repaper.c:(.text+0x540): undefined reference to `thermal_zone_get_zone_by_name'
> drivers/gpu/drm/tinydrm/repaper.o: In function `repaper_fb_dirty':
> repaper.c:(.text+0xff4): undefined reference to `thermal_zone_get_temp'
>
> This adds another Kconfig dependency to prevent the broken configuration,
> forcing repaper to be a module too.
>
> Fixes: 3589211e9b03 ("drm/tinydrm: Add RePaper e-ink driver")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---

Thanks for fixing this, applied to drm-misc.

Noralf.

>   drivers/gpu/drm/tinydrm/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig
> index 9596e447f877..f17c3caceab2 100644
> --- a/drivers/gpu/drm/tinydrm/Kconfig
> +++ b/drivers/gpu/drm/tinydrm/Kconfig
> @@ -23,6 +23,7 @@ config TINYDRM_MI0283QT
>   config TINYDRM_REPAPER
>   	tristate "DRM support for Pervasive Displays RePaper panels (V231)"
>   	depends on DRM_TINYDRM && SPI
> +	depends on THERMAL || !THERMAL
>   	help
>   	  DRM driver for the following Pervasive Displays panels:
>   	  1.44" TFT EPD Panel (E1144CS021)