linux-kernel - Re: [PATCH v7 1/5] counter: Internalize sysfs interface code

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Date:   Wed, 30 Dec 2020 17:24:34 -0600
From:   David Lechner <david@...hnology.com>
To:     William Breathitt Gray <vilhelm.gray@...il.com>, jic23@...nel.org
Cc:     kernel@...gutronix.de, linux-stm32@...md-mailman.stormreply.com,
        a.fatoum@...gutronix.de, kamel.bouhara@...tlin.com,
        gwendal@...omium.org, alexandre.belloni@...tlin.com,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, syednwaris@...il.com,
        patrick.havelange@...ensium.com, fabrice.gasnier@...com,
        mcoquelin.stm32@...il.com, alexandre.torgue@...com,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH v7 1/5] counter: Internalize sysfs interface code

On 12/25/20 6:15 PM, William Breathitt Gray wrote:

> diff --git a/drivers/counter/ti-eqep.c b/drivers/counter/ti-eqep.c
> index a60aee1a1a29..6c058b93dc98 100644
> --- a/drivers/counter/ti-eqep.c
> +++ b/drivers/counter/ti-eqep.c


> -static ssize_t ti_eqep_position_floor_write(struct counter_device *counter,
> -					    struct counter_count *count,
> -					    void *ext_priv, const char *buf,
> -					    size_t len)
> +static int ti_eqep_position_floor_write(struct counter_device *counter,
> +					struct counter_count *count, u64 floor)
>   {
>   	struct ti_eqep_cnt *priv = counter->priv;
> -	int err;
> -	u32 res;
>   
> -	err = kstrtouint(buf, 0, &res);
> -	if (err < 0)
> -		return err;
> +	if (floor != (u32)floor)
> +		return -ERANGE;
>   
> -	regmap_write(priv->regmap32, QPOSINIT, res);
> +	regmap_write(priv->regmap32, QPOSINIT, floor);
>   
> -	return len;
> +	return 0;
>   }

This will conflict with 2ba7b50893de "counter:ti-eqep: remove floor"
(in Jonathan's fixes-togreg branch) which removes these functions.