Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media update from Mauro Carvalho Chehab:

 - OF documentation and patches at core and drivers, to be used by for
   embedded media systems

 - some I2C drivers used on go7007 were rewritten/promoted from staging:
   sony-btf-mpx, tw2804, tw9903, tw9906, wis-ov7640, wis-uda1342

 - add fimc-is driver (Exynos)

 - add a new radio driver: radio-si476x

 - add a two new tuners: r820t and tuner_it913x

 - split camera code on em28xx driver and add more models

 - the cypress firmware load is used outside dvb usb drivers.  So, move
   it to a common directory to make easier to re-use it

 - siano media driver updated to work with sms2270 devices

 - several work done in order to promote go7007 and solo6x1x out of
   staging (still, there are some pending issues)

 - several API compliance fixes at v4l2 drivers that don't behave as
   expected

 - as usual, lots of driver fixes, improvements, cleanups and new device
   addition at the existing drivers.

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (831 commits)
  [media] cx88: make core less verbose
  [media] em28xx: fix oops at em28xx_dvb_bus_ctrl()
  [media] s5c73m3: fix indentation of the help section in Kconfig
  [media] cx25821-alsa: get rid of a __must_check warning
  [media] cx25821-video: declare cx25821_vidioc_s_std as static
  [media] cx25821-video: remove maxw from cx25821_vidioc_try_fmt_vid_cap
  [media] r820t: Remove a warning for an unused value
  [media] dib0090: Fix a warning at dib0090_set_EFUSE
  [media] dib8000: fix a warning
  [media] dib8000: Fix sub-channel range
  [media] dib8000: store dtv_property_cache in a temp var
  [media] dib8000: warning fix: declare internal functions as static
  [media] r820t: quiet gcc warning on n_ring
  [media] r820t: memory leak in release()
  [media] r820t: precendence bug in r820t_xtal_check()
  [media] videodev2.h: Remove the unused old V4L1 buffer types
  [media] anysee: Grammar s/report the/report to/
  [media] anysee: Initialize ret = 0 in anysee_frontend_attach()
  [media] media: videobuf2: fix the length check for mmap
  [media] em28xx: save isoc endpoint number for DVB only if endpoint has alt settings with xMaxPacketSize != 0
  ...

1 files changed, 10 insertions, 11 deletions

diff --git a/drivers/staging/media/go7007/go7007-i2c.c b/drivers/staging/media/go7007/go7007-i2c.c
index 39456a3..74f25e0 100644
--- a/drivers/staging/media/go7007/go7007-i2c.c
+++ b/drivers/staging/media/go7007/go7007-i2c.c
@@ -28,7 +28,6 @@
 #include <linux/uaccess.h>
 
 #include "go7007-priv.h"
-#include "wis-i2c.h"
 
 /********************* Driver for on-board I2C adapter *********************/
 
@@ -52,11 +51,11 @@ static DEFINE_MUTEX(adlink_mpg24_i2c_lock);
 static int go7007_i2c_xfer(struct go7007 *go, u16 addr, int read,
 		u16 command, int flags, u8 *data)
 {
-	int i, ret = -1;
+	int i, ret = -EIO;
 	u16 val;
 
 	if (go->status == STATUS_SHUTDOWN)
-		return -1;
+		return -ENODEV;
 
 #ifdef GO7007_I2C_DEBUG
 	if (read)
@@ -146,7 +145,7 @@ static int go7007_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
 	struct go7007 *go = i2c_get_adapdata(adapter);
 
 	if (size != I2C_SMBUS_BYTE_DATA)
-		return -1;
+		return -EIO;
 	return go7007_i2c_xfer(go, addr, read_write == I2C_SMBUS_READ, command,
 			flags & I2C_CLIENT_SCCB ? 0x10 : 0x00, &data->byte);
 }
@@ -170,26 +169,26 @@ static int go7007_i2c_master_xfer(struct i2c_adapter *adapter,
 					(msgs[i].flags & I2C_M_RD) ||
 					!(msgs[i + 1].flags & I2C_M_RD) ||
 					msgs[i + 1].len != 1)
-				return -1;
+				return -EIO;
 			if (go7007_i2c_xfer(go, msgs[i].addr, 1,
 					(msgs[i].buf[0] << 8) | msgs[i].buf[1],
 					0x01, &msgs[i + 1].buf[0]) < 0)
-				return -1;
+				return -EIO;
 			++i;
 		} else if (msgs[i].len == 3) {
 			if (msgs[i].flags & I2C_M_RD)
-				return -1;
+				return -EIO;
 			if (msgs[i].len != 3)
-				return -1;
+				return -EIO;
 			if (go7007_i2c_xfer(go, msgs[i].addr, 0,
 					(msgs[i].buf[0] << 8) | msgs[i].buf[1],
 					0x01, &msgs[i].buf[2]) < 0)
-				return -1;
+				return -EIO;
 		} else
-			return -1;
+			return -EIO;
 	}
 
-	return 0;
+	return num;
 }
 
 static u32 go7007_functionality(struct i2c_adapter *adapter)