* David Brownell <[email protected]> [081126 16:45]:
> From: David Brownell <[email protected]>
> 
> Remove some debug code from twl4030-usb which 'checkpatch.pl' warned
> about.  Turn some other messages into debug code; and add some debug
> messages in the "write verify" paths (so we can see if they matter).
> This gives about 25% codespace shrinkage.

Pushing both to l-o tree today.

Tony

> 
> Signed-off-by: David Brownell <[email protected]>
> ---
>  drivers/i2c/chips/twl4030-usb.c |   29 ++++++++++-------------------
>  1 file changed, 10 insertions(+), 19 deletions(-)
> 
> --- a/drivers/i2c/chips/twl4030-usb.c
> +++ b/drivers/i2c/chips/twl4030-usb.c
> @@ -285,13 +285,18 @@ static int twl4030_i2c_write_u8_verify(s
>           (twl4030_i2c_read_u8(module, &check, address) >= 0) &&
>                                               (check == data))
>               return 0;
> +     dev_dbg(twl->dev, "Write%d[%d,0x%x] wrote %02x but read %02x\n",
> +                     1, module, address, check, data);
> +
>       /* Failed once: Try again */
>       if ((twl4030_i2c_write_u8(module, data, address) >= 0) &&
>           (twl4030_i2c_read_u8(module, &check, address) >= 0) &&
>                                               (check == data))
>               return 0;
> -     /* Failed again: Return error */
> +     dev_dbg(twl->dev, "Write%d[%d,0x%x] wrote %02x but read %02x\n",
> +                     2, module, address, check, data);
>  
> +     /* Failed again: Return error */
>       return -EBUSY;
>  }
>  
> @@ -304,23 +309,9 @@ static inline int twl4030_usb_write(stru
>       int ret = 0;
>  
>       ret = twl4030_i2c_write_u8(TWL4030_MODULE_USB, data, address);
> -     if (ret >= 0) {
> -#if 0        /* debug */
> -             u8 data1;
> -             if (twl4030_i2c_read_u8(TWL4030_MODULE_USB, &data1,
> -                                     address) < 0)
> -                     dev_err(twl->dev, "re-read failed\n");
> -             else
> -                     dev_dbg(twl->dev,
> -                            "Write %s wrote %x read %x from reg %x\n",
> -                            (data1 == data) ? "succeed" : "mismatch",
> -                            data, data1, address);
> -#endif
> -     } else {
> -             dev_warn(twl->dev,
> +     if (ret < 0)
> +             dev_dbg(twl->dev,
>                       "TWL4030:USB:Write[0x%x] Error %d\n", address, ret);
> -     }
> -
>       return ret;
>  }
>  
> @@ -333,7 +324,7 @@ static inline int twl4030_readb(struct t
>       if (ret >= 0)
>               ret = data;
>       else
> -             dev_warn(twl->dev,
> +             dev_dbg(twl->dev,
>                       "TWL4030:readb[0x%x,0x%x] Error %d\n",
>                                       module, address, ret);
>  
> @@ -655,7 +646,7 @@ static int __init twl4030_usb_probe(stru
>               return -ENOMEM;
>  
>       if (!pdata) {
> -             dev_info(&pdev->dev, "platform_data not available\n");
> +             dev_dbg(&pdev->dev, "platform_data not available\n");
>               return -EINVAL;
>       }
>  
> --
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