linux-kernel - Re: [PATCH v2 7/7] counter: stm32-timer-cnt: Update count_read and count

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Date:   Wed, 18 Sep 2019 14:16:38 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     William Breathitt Gray <vilhelm.gray@...il.com>,
        <jic23@...23.retrosnub.co.uk>
CC:     <linux-kernel@...r.kernel.org>, <linux-iio@...r.kernel.org>,
        <patrick.havelange@...ensium.com>, <mcoquelin.stm32@...il.com>,
        <alexandre.torgue@...com>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 7/7] counter: stm32-timer-cnt: Update count_read and
 count_write callbacks

On 9/18/19 9:52 AM, William Breathitt Gray wrote:
> The count_read and count_write callbacks pass unsigned long now.
> 
> Cc: Fabrice Gasnier <fabrice.gasnier@...com>
> Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>

Hi William,

I tested your series for STM32 timer and LPtimer drivers. Maybe you can
squash as suggested by Benjamin ?
With that, you can add my acked-by for the two STM32 drivers.

Thanks,
Fabrice

> ---
>  drivers/counter/stm32-timer-cnt.c | 17 +++++------------
>  1 file changed, 5 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/counter/stm32-timer-cnt.c b/drivers/counter/stm32-timer-cnt.c
> index 644ba18a72ad..839083543323 100644
> --- a/drivers/counter/stm32-timer-cnt.c
> +++ b/drivers/counter/stm32-timer-cnt.c
> @@ -48,34 +48,27 @@ static enum counter_count_function stm32_count_functions[] = {
>  };
>  
>  static int stm32_count_read(struct counter_device *counter,
> -			    struct counter_count *count,
> -			    struct counter_count_read_value *val)
> +			    struct counter_count *count, unsigned long *val)
>  {
>  	struct stm32_timer_cnt *const priv = counter->priv;
>  	u32 cnt;
>  
>  	regmap_read(priv->regmap, TIM_CNT, &cnt);
> -	counter_count_read_value_set(val, COUNTER_COUNT_POSITION, &cnt);
> +	*val = cnt;
>  
>  	return 0;
>  }
>  
>  static int stm32_count_write(struct counter_device *counter,
>  			     struct counter_count *count,
> -			     struct counter_count_write_value *val)
> +			     const unsigned long val)
>  {
>  	struct stm32_timer_cnt *const priv = counter->priv;
> -	u32 cnt;
> -	int err;
> -
> -	err = counter_count_write_value_get(&cnt, COUNTER_COUNT_POSITION, val);
> -	if (err)
> -		return err;
>  
> -	if (cnt > priv->ceiling)
> +	if (val > priv->ceiling)
>  		return -EINVAL;
>  
> -	return regmap_write(priv->regmap, TIM_CNT, cnt);
> +	return regmap_write(priv->regmap, TIM_CNT, val);
>  }
>  
>  static int stm32_count_function_get(struct counter_device *counter,
>