[media] saa7164: Adding additional I2C debug

Assists with debugging difficult I2C devices.

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/pci/saa7164/saa7164-api.c b/drivers/media/pci/saa7164/saa7164-api.c
index 4f3b1dd18ba4db4335ab87c34b02fc1ea5f2e012..97bbd0a13d62136adbbd6815b5cbe62d63b7dd1c 100644 (file)
--- a/drivers/media/pci/saa7164/saa7164-api.c
+++ b/drivers/media/pci/saa7164/saa7164-api.c
@@ -1373,7 +1373,8 @@ int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
        u8 buf[256];
        int ret;
 
-       dprintk(DBGLVL_API, "%s()\n", __func__);
+       dprintk(DBGLVL_API, "%s() addr=%x reglen=%d datalen=%d\n",
+               __func__, addr, reglen, datalen);
 
        if (reglen > 4)
                return -EIO;
@@ -1434,7 +1435,8 @@ int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen,
        u8 buf[256];
        int ret;
 
-       dprintk(DBGLVL_API, "%s()\n", __func__);
+       dprintk(DBGLVL_API, "%s() addr=0x%2x len=0x%x\n",
+               __func__, addr, datalen);
 
        if ((datalen == 0) || (datalen > 232))
                return -EIO;
@@ -1464,7 +1466,7 @@ int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen,
                return -EIO;
        }
 
-       dprintk(DBGLVL_API, "%s() len = %d bytes\n", __func__, len);
+       dprintk(DBGLVL_API, "%s() len = %d bytes unitid=0x%x\n", __func__, len, unitid);
 
        /* Prepare the send buffer */
        /* Bytes 00-03 dest register length