linux-kernel - Re: [PATCH v2 27/45] iio: Switch to use hrtimer

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Message-ID: <20250205162137.0000404c@huawei.com>
Date: Wed, 5 Feb 2025 16:21:37 +0000
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Nam Cao <namcao@...utronix.de>
CC: Anna-Maria Behnsen <anna-maria@...utronix.de>, Frederic Weisbecker
	<frederic@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
	<linux-kernel@...r.kernel.org>, Zack Rusin <zack.rusin@...adcom.com>,
	<linux-iio@...r.kernel.org>
Subject: Re: [PATCH v2 27/45] iio: Switch to use hrtimer_setup()

On Wed,  5 Feb 2025 11:46:15 +0100
Nam Cao <namcao@...utronix.de> wrote:

> hrtimer_setup() takes the callback function pointer as argument and
> initializes the timer completely.
> 
> Replace hrtimer_init() and the open coded initialization of
> hrtimer::function with the new setup mechanism.
> 
> Patch was created by using Coccinelle.
> 
> Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> Acked-by: Zack Rusin <zack.rusin@...adcom.com>
> Signed-off-by: Nam Cao <namcao@...utronix.de>

+CC linux-iio

> ---
>  drivers/iio/adc/ti-tsc2046.c           | 4 +---
>  drivers/iio/trigger/iio-trig-hrtimer.c | 4 ++--
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/adc/ti-tsc2046.c b/drivers/iio/adc/ti-tsc2046.c
> index 7dde5713973f..49560059f4b7 100644
> --- a/drivers/iio/adc/ti-tsc2046.c
> +++ b/drivers/iio/adc/ti-tsc2046.c
> @@ -812,9 +812,7 @@ static int tsc2046_adc_probe(struct spi_device *spi)
>  
>  	spin_lock_init(&priv->state_lock);
>  	priv->state = TSC2046_STATE_SHUTDOWN;
> -	hrtimer_init(&priv->trig_timer, CLOCK_MONOTONIC,
> -		     HRTIMER_MODE_REL_SOFT);
> -	priv->trig_timer.function = tsc2046_adc_timer;
> +	hrtimer_setup(&priv->trig_timer, tsc2046_adc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
>  
>  	ret = devm_iio_trigger_register(dev, trig);
>  	if (ret) {
> diff --git a/drivers/iio/trigger/iio-trig-hrtimer.c b/drivers/iio/trigger/iio-trig-hrtimer.c
> index 716c795d08fb..82c72baccb62 100644
> --- a/drivers/iio/trigger/iio-trig-hrtimer.c
> +++ b/drivers/iio/trigger/iio-trig-hrtimer.c
> @@ -145,8 +145,8 @@ static struct iio_sw_trigger *iio_trig_hrtimer_probe(const char *name)
>  	trig_info->swt.trigger->ops = &iio_hrtimer_trigger_ops;
>  	trig_info->swt.trigger->dev.groups = iio_hrtimer_attr_groups;
>  
> -	hrtimer_init(&trig_info->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
> -	trig_info->timer.function = iio_hrtimer_trig_handler;
> +	hrtimer_setup(&trig_info->timer, iio_hrtimer_trig_handler, CLOCK_MONOTONIC,
> +		      HRTIMER_MODE_REL_HARD);
>  
>  	trig_info->sampling_frequency[0] = HRTIMER_DEFAULT_SAMPLING_FREQUENCY;
>  	trig_info->period = NSEC_PER_SEC / trig_info->sampling_frequency[0];