linux-kernel - [patch] video: fix SOC_CAMERA

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Date:	Mon, 28 Apr 2008 14:00:32 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Mauro Carvalho Chehab <mchehab@...radead.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [patch] video: fix SOC_CAMERA_MT9M001 build bug


on latest -git, with this config:

  http://redhat.com/~mingo/misc/config-Mon_Apr_28_13_25_34_CEST_2008.bad

  CONFIG_SOC_CAMERA_MT9M001=y
  CONFIG_SOC_CAMERA_MT9V022=y
  # CONFIG_I2C is not set

the build fails:

drivers/built-in.o: In function `reg_read':
mt9m001.c:(.text+0x140a87): undefined reference to `i2c_smbus_read_word_data'
drivers/built-in.o: In function `reg_write':
mt9m001.c:(.text+0x140b6e): undefined reference to `i2c_smbus_write_word_data'
drivers/built-in.o: In function `reg_read':
mt9v022.c:(.text+0x1413a7): undefined reference to `i2c_smbus_read_word_data'
drivers/built-in.o: In function `reg_write':
mt9v022.c:(.text+0x1414ce): undefined reference to `i2c_smbus_write_word_data'
drivers/built-in.o: In function `mt9m001_mod_init':
mt9m001.c:(.init.text+0x158a8): undefined reference to `i2c_register_driver'
drivers/built-in.o: In function `mt9v022_mod_init':
mt9v022.c:(.init.text+0x158b8): undefined reference to `i2c_register_driver'
drivers/built-in.o: In function `mt9m001_mod_exit':
mt9m001.c:(.exit.text+0x1656): undefined reference to `i2c_del_driver'
drivers/built-in.o: In function `mt9v022_mod_exit':
mt9v022.c:(.exit.text+0x1666): undefined reference to `i2c_del_driver'

adding the missing I2C dependency fixes it.

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 drivers/media/video/Kconfig |    1 +
 1 file changed, 1 insertion(+)

Index: linux/drivers/media/video/Kconfig
===================================================================
--- linux.orig/drivers/media/video/Kconfig
+++ linux/drivers/media/video/Kconfig
@@ -850,6 +850,7 @@ endif # V4L_USB_DRIVERS
 config SOC_CAMERA
 	tristate "SoC camera support"
 	depends on VIDEO_V4L2
+	depends on I2C
 	select VIDEOBUF_DMA_SG
 	help
 	  SoC Camera is a common API to several cameras, not connecting

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