git.openwrt.org Git - openwrt/staging/blocktrron.git/blob

   1 From 25b4bd6894bf79b5d6150d66222d63afea32f24f Mon Sep 17 00:00:00 2001
   2 From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   3 Date: Sun, 16 Oct 2022 09:15:06 +0300
   4 Subject: [PATCH] media: i2c: imx290: Print error code when I2C
   5  transfer fails
   6
   7 Upstream commit fbe0a89dc7e3.
   8
   9 Knowing why I2C transfers fail is useful for debugging. Extend the error
  10 message to print the error code.
  11
  12 Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  13 Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
  14 Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
  15 ---
  16  drivers/media/i2c/imx290.c | 6 ++++--
  17  1 file changed, 4 insertions(+), 2 deletions(-)
  18
  19 --- a/drivers/media/i2c/imx290.c
  20 +++ b/drivers/media/i2c/imx290.c
  21 @@ -370,7 +370,8 @@ static inline int __always_unused imx290
  22
  23         ret = regmap_read(imx290->regmap, addr, &regval);
  24         if (ret) {
  25 -               dev_err(imx290->dev, "I2C read failed for addr: %x\n", addr);
  26 +               dev_err(imx290->dev, "Failed to read register 0x%04x: %d\n",
  27 +                       addr, ret);
  28                 return ret;
  29         }
  30
  31 @@ -385,7 +386,8 @@ static int imx290_write_reg(struct imx29
  32
  33         ret = regmap_write(imx290->regmap, addr, value);
  34         if (ret) {
  35 -               dev_err(imx290->dev, "I2C write failed for addr: %x\n", addr);
  36 +               dev_err(imx290->dev, "Failed to write register 0x%04x: %d\n",
  37 +                       addr, ret);
  38                 return ret;
  39         }
  40