linux-kernel - Re: [PATCH v3 06/20] media: i2c: ov4689: Refactor ov4689_set

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Message-ID: <875xy1hhsc.fsf@gmail.com>
Date: Mon, 04 Mar 2024 23:17:34 +0300
From: Mikhail Rudenko <mike.rudenko@...il.com>
To: Kieran Bingham <kieran.bingham@...asonboard.com>
Cc: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, Sakari Ailus
 <sakari.ailus@...ux.intel.com>, Laurent Pinchart
 <laurent.pinchart@...asonboard.com>, Jacopo Mondi <jacopo@...ndi.org>,
 Tommaso Merciai <tomm.merciai@...il.com>, Christophe JAILLET
 <christophe.jaillet@...adoo.fr>, Dave Stevenson
 <dave.stevenson@...pberrypi.com>, Mauro Carvalho Chehab
 <mchehab@...nel.org>
Subject: Re: [PATCH v3 06/20] media: i2c: ov4689: Refactor ov4689_set_ctrl


Hi Kieran,

On 2024-03-04 at 16:49 GMT, Kieran Bingham <kieran.bingham@...asonboard.com> wrote:

> Hi Mikhail,
>
> I love this series. ;-)

Thanks! :)

> Quoting Mikhail Rudenko (2024-02-29 16:53:19)
>> Introduce local variable for regmap within the ov4689_set_ctrl
>> function. This adjustment eliminates repetition within the function.
>>
>> Signed-off-by: Mikhail Rudenko <mike.rudenko@...il.com>
>
> Reviewed-by: Kieran Bingham <kieran.bingham@...asonboard.com>
>
>> ---
>>  drivers/media/i2c/ov4689.c | 12 ++++++------
>>  1 file changed, 6 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/media/i2c/ov4689.c b/drivers/media/i2c/ov4689.c
>> index 56bf1d964e43..1bc00404f3fb 100644
>> --- a/drivers/media/i2c/ov4689.c
>> +++ b/drivers/media/i2c/ov4689.c
>> @@ -580,10 +580,11 @@ static int ov4689_set_ctrl(struct v4l2_ctrl *ctrl)
>>  {
>>         struct ov4689 *ov4689 =
>>                 container_of(ctrl->handler, struct ov4689, ctrl_handler);
>> +       struct regmap *regmap = ov4689->regmap;
>>         struct device *dev = ov4689->dev;
>>         int sensor_gain;
>>         s64 max_expo;
>> -       int ret;
>> +       int ret = 0;
>>
>>         /* Propagate change of current control to all related controls */
>>         switch (ctrl->id) {
>> @@ -603,16 +604,15 @@ static int ov4689_set_ctrl(struct v4l2_ctrl *ctrl)
>>         switch (ctrl->id) {
>>         case V4L2_CID_EXPOSURE:
>>                 /* 4 least significant bits of exposure are fractional part */
>> -               ret = cci_write(ov4689->regmap, OV4689_REG_EXPOSURE,
>> -                               ctrl->val << 4, NULL);
>> +               cci_write(regmap, OV4689_REG_EXPOSURE, ctrl->val << 4, &ret);
>>                 break;
>>         case V4L2_CID_ANALOGUE_GAIN:
>>                 ret = ov4689_map_gain(ov4689, ctrl->val, &sensor_gain);
>> -               cci_write(ov4689->regmap, OV4689_REG_GAIN, sensor_gain, &ret);
>> +               cci_write(regmap, OV4689_REG_GAIN, sensor_gain, &ret);
>>                 break;
>>         case V4L2_CID_VBLANK:
>> -               ret = cci_write(ov4689->regmap, OV4689_REG_VTS,
>> -                               ctrl->val + ov4689->cur_mode->height, NULL);
>> +               cci_write(regmap, OV4689_REG_VTS,
>> +                         ctrl->val + ov4689->cur_mode->height, &ret);
>>                 break;
>>         case V4L2_CID_TEST_PATTERN:
>>                 ret = ov4689_enable_test_pattern(ov4689, ctrl->val);
>> --
>> 2.43.0
>>


--
Best regards,
Mikhail Rudenko