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

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

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@ideasonboard.com>
> ---
>  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.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> -		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 */
>  };

-- 
Regards,

Laurent Pinchart