On Thu, Dec 22, 2016 at 11:01:04AM +0100, Pavel Machek wrote:
> 
> Add driver for et8ek8 sensor, found in Nokia N900 main camera. Can be
> used for taking photos in 2.5MP resolution with fcam-dev.
> 
> Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov...@gmail.com>
> Signed-off-by: Pavel Machek <pa...@ucw.cz>

Thanks!

I fixed a few checkpatch warnings and one or two minor matters, the diff is
here. No functional changes. I'm a bit surprised checkpatch.pl suggests to
use numerical values for permissions but I think I agree with that. Reason
is prioritised agains the rules. :-)

Btw. should we update maintainers as well? Would you like to put yourself
there? Feel free to add me, too...

The patches are here. I think they should be good to go to v4.11.

<URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=et8ek8>

Let me know if you're (not) happy with these:

diff --git a/drivers/media/i2c/et8ek8/et8ek8_driver.c 
b/drivers/media/i2c/et8ek8/et8ek8_driver.c
index d3de087..2df3ff4 100644
--- a/drivers/media/i2c/et8ek8/et8ek8_driver.c
+++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c
@@ -347,13 +347,13 @@ static int et8ek8_i2c_write_reg(struct i2c_client 
*client, u16 data_length,
        et8ek8_i2c_create_msg(client, data_length, reg, val, &msg, data);
 
        r = i2c_transfer(client->adapter, &msg, 1);
-       if (r < 0)
+       if (r < 0) {
                dev_err(&client->dev,
                        "wrote 0x%x to offset 0x%x error %d\n", val, reg, r);
-       else
-               r = 0; /* on success i2c_transfer() returns messages trasfered 
*/
+               return r;
+       }
 
-       return r;
+       return 0;
 }
 
 static struct et8ek8_reglist *et8ek8_reglist_find_type(
@@ -620,14 +620,13 @@ static int et8ek8_set_test_pattern(struct et8ek8_sensor 
*sensor, s32 mode)
        rval = et8ek8_i2c_write_reg(client, ET8EK8_REG_8BIT, 0x1124,
                                    cbv_mode << 7);
        if (rval)
-               return rval;            
+               return rval;
 
        rval = et8ek8_i2c_write_reg(client, ET8EK8_REG_8BIT, 0x112C, din_sw);
        if (rval)
                return rval;
 
-       rval = et8ek8_i2c_write_reg(client, ET8EK8_REG_8BIT, 0x1420, r1420);
-       return rval;
+       return et8ek8_i2c_write_reg(client, ET8EK8_REG_8BIT, 0x1420, r1420);
 }
 
 /* 
-----------------------------------------------------------------------------
@@ -645,11 +644,11 @@ static int et8ek8_set_ctrl(struct v4l2_ctrl *ctrl)
 
        case V4L2_CID_EXPOSURE:
        {
-               int rows;
-               struct i2c_client *client = 
v4l2_get_subdevdata(&sensor->subdev);
-               rows = ctrl->val;
+               struct i2c_client *client =
+                       v4l2_get_subdevdata(&sensor->subdev);
+
                return et8ek8_i2c_write_reg(client, ET8EK8_REG_16BIT, 0x1243,
-                                           rows);
+                                           ctrl->val);
        }
 
        case V4L2_CID_TEST_PATTERN:
@@ -695,8 +694,9 @@ static int et8ek8_init_controls(struct et8ek8_sensor 
*sensor)
                u32 min = 1, max = max_rows;
 
                sensor->exposure =
-                       v4l2_ctrl_new_std(&sensor->ctrl_handler, 
&et8ek8_ctrl_ops,
-                                         V4L2_CID_EXPOSURE, min, max, min, 
max);
+                       v4l2_ctrl_new_std(&sensor->ctrl_handler,
+                                         &et8ek8_ctrl_ops, V4L2_CID_EXPOSURE,
+                                         min, max, min, max);
        }
 
        /* V4L2_CID_PIXEL_RATE */
@@ -722,7 +722,7 @@ static void et8ek8_update_controls(struct et8ek8_sensor 
*sensor)
 {
        struct v4l2_ctrl *ctrl;
        struct et8ek8_mode *mode = &sensor->current_reglist->mode;
-       
+
        u32 min, max, pixel_rate;
        static const int S = 8;
 
@@ -1248,7 +1248,7 @@ et8ek8_priv_mem_read(struct device *dev, struct 
device_attribute *attr,
 
        return ET8EK8_PRIV_MEM_SIZE;
 }
-static DEVICE_ATTR(priv_mem, S_IRUGO, et8ek8_priv_mem_read, NULL);
+static DEVICE_ATTR(priv_mem, 0444, et8ek8_priv_mem_read, NULL);
 
 /* --------------------------------------------------------------------------
  * V4L2 subdev core operations


-- 
Kind regards,

Sakari Ailus
e-mail: sakari.ai...@iki.fi     XMPP: sai...@retiisi.org.uk

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