linux-kernel - Re: [PATCH] media: i2c: ov7740: add media-controller dependency

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Date:   Tue, 9 Jan 2018 16:59:10 +0800
From:   "Yang, Wenyou" <Wenyou.Yang@...rochip.com>
To:     Arnd Bergmann <arnd@...db.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
CC:     Songjun Wu <songjun.wu@...rochip.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Pavel Machek <pavel@....cz>, <linux-media@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] media: i2c: ov7740: add media-controller dependency

Hello Arnd,


On 2018/1/8 20:52, Arnd Bergmann wrote:
> Without CONFIG_MEDIA_CONTROLLER, the new driver fails to build:
>
> drivers/perf/arm_dsu_pmu.c: In function 'dsu_pmu_probe_pmu':
> drivers/perf/arm_dsu_pmu.c:661:2: error: implicit declaration of function 'bitmap_from_u32array'; did you mean 'bitmap_from_arr32'? [-Werror=implicit-function-declaration]
>
> This adds a dependency similar to what we have for other drivers
> like this.
>
> Fixes: 39c5c4471b8d ("media: i2c: Add the ov7740 image sensor driver")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
Indeed.
Thank you for your fix.

Acked-by: Wenyou Yang <wenyou.yang@...rochip.com>

>   drivers/media/i2c/Kconfig | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index 9f18cd296841..03cf3a1a1e06 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -667,7 +667,7 @@ config VIDEO_OV7670
>   
>   config VIDEO_OV7740
>   	tristate "OmniVision OV7740 sensor support"
> -	depends on I2C && VIDEO_V4L2
> +	depends on I2C && VIDEO_V4L2 && MEDIA_CONTROLLER
>   	depends on MEDIA_CAMERA_SUPPORT
>   	---help---
>   	  This is a Video4Linux2 sensor-level driver for the OmniVision

Best Regards,
Wenyou Yang