linux-kernel - [PATCH 4.4 135/193] [media] em28xx: only use mt9v011 if camera support is enabled

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Date:   Fri, 23 Feb 2018 19:26:08 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>
Subject: [PATCH 4.4 135/193] [media] em28xx: only use mt9v011 if camera support is enabled

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@...db.de>

commit 190b23b4eb997767afad186bd8c96badceabf39e upstream.

In randconfig builds that select VIDEO_EM28XX_V4L2 and
MEDIA_SUBDRV_AUTOSELECT, but not MEDIA_CAMERA_SUPPORT, we get
a Kconfig warning:

 warning: (VIDEO_EM28XX_V4L2) selects VIDEO_MT9V011 which has unmet direct dependencies (MEDIA_SUPPORT && I2C && VIDEO_V4L2 && MEDIA_CAMERA_SUPPORT)

This avoids the warning by making that 'select' conditional on
MEDIA_CAMERA_SUPPORT. Alternatively we could mark EM28XX as
'depends on MEDIA_CAMERA_SUPPORT', but it does not seem to
have any real dependency on that itself.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/media/usb/em28xx/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/usb/em28xx/Kconfig
+++ b/drivers/media/usb/em28xx/Kconfig
@@ -11,7 +11,7 @@ config VIDEO_EM28XX_V4L2
 	select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_TVP5150 if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_MSP3400 if MEDIA_SUBDRV_AUTOSELECT
-	select VIDEO_MT9V011 if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_MT9V011 if MEDIA_SUBDRV_AUTOSELECT && MEDIA_CAMERA_SUPPORT
 
 	---help---
 	  This is a video4linux driver for Empia 28xx based TV cards.