[PATCH] media: atomisp: add I2C dependency

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From: Arnd Bergmann <arnd@xxxxxxxx>

Without CONFIG_I2C, atomisp fails to build because of a missing
function declaration:

drivers/staging/media/atomisp/pci/atomisp_v4l2.c: In function 'atomisp_subdev_probe':
drivers/staging/media/atomisp/pci/atomisp_v4l2.c:960:21: error: implicit declaration of function 'i2c_get_adapter'; did you mean 'i2c_get_adapdata'? [-Werror=implicit-function-declaration]
  960 |                     i2c_get_adapter(subdevs->v4l2_subdev.i2c_adapter_id);
      |                     ^~~~~~~~~~~~~~~
      |                     i2c_get_adapdata

Ideally the driver should just move away from calling i2c_get_adapter
as explained in a comment near the call. For now, just use a Kconfig
dependency. Apparently configurations with I2C disabled are rare in
practice as well as in randconfig builds because a lot of other
drivers 'select' the subsystem.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/staging/media/atomisp/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/atomisp/Kconfig b/drivers/staging/media/atomisp/Kconfig
index c9bff98e5309..8b0de0b5b4a3 100644
--- a/drivers/staging/media/atomisp/Kconfig
+++ b/drivers/staging/media/atomisp/Kconfig
@@ -13,6 +13,7 @@ config VIDEO_ATOMISP
 	tristate "Intel Atom Image Signal Processor Driver"
 	depends on VIDEO_DEV && INTEL_ATOMISP
 	depends on PMIC_OPREGION
+	depends on I2C
 	select IOSF_MBI
 	select VIDEOBUF2_VMALLOC
 	select VIDEO_V4L2_SUBDEV_API
-- 
2.39.0




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