Re: [PATCH 2/2] media: i2c: adv748x: Remove PAGE_WAIT

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Hi Laurent,

On 11/01/2019 20:23, Laurent Pinchart wrote:
> Hi Kieran,
> 
> Thank you for the patch.
> 
> On Friday, 11 January 2019 19:41:41 EET Kieran Bingham wrote:
>> The ADV748X_PAGE_WAIT is a fake page to insert arbitrary delays in the
>> register tables.
>>
>> Its only usage was removed, so we can remove the handling and simplify
>> the code.
>>
>> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
>> ---
>>  drivers/media/i2c/adv748x/adv748x-core.c | 17 ++++++-----------
>>  drivers/media/i2c/adv748x/adv748x.h      |  1 -
>>  2 files changed, 6 insertions(+), 12 deletions(-)
>>
>> diff --git a/drivers/media/i2c/adv748x/adv748x-core.c
>> b/drivers/media/i2c/adv748x/adv748x-core.c index 252bdb28b18b..8199e0b20790
>> 100644
>> --- a/drivers/media/i2c/adv748x/adv748x-core.c
>> +++ b/drivers/media/i2c/adv748x/adv748x-core.c
>> @@ -219,18 +219,13 @@ static int adv748x_write_regs(struct adv748x_state
>> *state, int ret;
>>
>>  	while (regs->page != ADV748X_PAGE_EOR) {
> 
> While at it you could write this as
> 
> 	for (; regs->page != ADV748X_PAGE_EOR; ++regs)
> 
> and remove the regs++ below.

ah yes - good idea. I'll update this.

--
Kieran


> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> 
>> -		if (regs->page == ADV748X_PAGE_WAIT) {
>> -			msleep(regs->value);
>> -		} else {
>> -			ret = adv748x_write(state, regs->page, regs->reg,
>> -				      regs->value);
>> -			if (ret < 0) {
>> -				adv_err(state,
>> -					"Error regs page: 0x%02x reg: 0x%02x\n",
>> -					regs->page, regs->reg);
>> -				return ret;
>> -			}
>> +		ret = adv748x_write(state, regs->page, regs->reg, regs->value);
>> +		if (ret < 0) {
>> +			adv_err(state, "Error regs page: 0x%02x reg: 0x%02x\n",
>> +				regs->page, regs->reg);
>> +			return ret;
>>  		}
>> +
>>  		regs++;
>>  	}
>>
>> diff --git a/drivers/media/i2c/adv748x/adv748x.h
>> b/drivers/media/i2c/adv748x/adv748x.h index 2f8d751cfbb0..5042f9e94aee
>> 100644
>> --- a/drivers/media/i2c/adv748x/adv748x.h
>> +++ b/drivers/media/i2c/adv748x/adv748x.h
>> @@ -39,7 +39,6 @@ enum adv748x_page {
>>  	ADV748X_PAGE_MAX,
>>
>>  	/* Fake pages for register sequences */
>> -	ADV748X_PAGE_WAIT,		/* Wait x msec */
>>  	ADV748X_PAGE_EOR,		/* End Mark */
>>  };
> 




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