2019-09-27 02:46:12

by Baolin Wang

Subject: [PATCH] iio: adc: sc27xx: Use devm_hwspin_lock_request_specific() to simplify code

Change to use devm_hwspin_lock_request_specific() to help to simplify the
cleanup code for drivers requesting one hwlock.

Signed-off-by: Baolin Wang <[email protected]>
---
drivers/iio/adc/sc27xx_adc.c | 16 +---------------
1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c
index a6c0465..66b387f 100644
--- a/drivers/iio/adc/sc27xx_adc.c
+++ b/drivers/iio/adc/sc27xx_adc.c
@@ -477,13 +477,6 @@ static void sc27xx_adc_disable(void *_data)
SC27XX_MODULE_ADC_EN, 0);
}

-static void sc27xx_adc_free_hwlock(void *_data)
-{
- struct hwspinlock *hwlock = _data;
-
- hwspin_lock_free(hwlock);
-}
-
static int sc27xx_adc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -520,19 +513,12 @@ static int sc27xx_adc_probe(struct platform_device *pdev)
return ret;
}

- sc27xx_data->hwlock = hwspin_lock_request_specific(ret);
+ sc27xx_data->hwlock = devm_hwspin_lock_request_specific(dev, ret);
if (!sc27xx_data->hwlock) {
dev_err(dev, "failed to request hwspinlock\n");
return -ENXIO;
}

- ret = devm_add_action_or_reset(dev, sc27xx_adc_free_hwlock,
- sc27xx_data->hwlock);
- if (ret) {
- dev_err(dev, "failed to add hwspinlock action\n");
- return ret;
- }
-
sc27xx_data->dev = dev;

ret = sc27xx_adc_enable(sc27xx_data);
--
1.7.9.5

2019-10-06 09:29:57

by Jonathan Cameron

Subject: Re: [PATCH] iio: adc: sc27xx: Use devm_hwspin_lock_request_specific() to simplify code

On Fri, 27 Sep 2019 10:41:19 +0800
Baolin Wang <[email protected]> wrote:

> Change to use devm_hwspin_lock_request_specific() to help to simplify the
> cleanup code for drivers requesting one hwlock.
>
> Signed-off-by: Baolin Wang <[email protected]>
Applied to the togreg branch of iio.git and pushed out as testing for the
autobuilders to play with it.

Thanks,

Jonathan

> ---
> drivers/iio/adc/sc27xx_adc.c | 16 +---------------
> 1 file changed, 1 insertion(+), 15 deletions(-)
>
> diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c
> index a6c0465..66b387f 100644
> --- a/drivers/iio/adc/sc27xx_adc.c
> +++ b/drivers/iio/adc/sc27xx_adc.c
> @@ -477,13 +477,6 @@ static void sc27xx_adc_disable(void *_data)
> SC27XX_MODULE_ADC_EN, 0);
> }
>
> -static void sc27xx_adc_free_hwlock(void *_data)
> -{
> - struct hwspinlock *hwlock = _data;
> -
> - hwspin_lock_free(hwlock);
> -}
> -
> static int sc27xx_adc_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> @@ -520,19 +513,12 @@ static int sc27xx_adc_probe(struct platform_device *pdev)
> return ret;
> }
>
> - sc27xx_data->hwlock = hwspin_lock_request_specific(ret);
> + sc27xx_data->hwlock = devm_hwspin_lock_request_specific(dev, ret);
> if (!sc27xx_data->hwlock) {
> dev_err(dev, "failed to request hwspinlock\n");
> return -ENXIO;
> }
>
> - ret = devm_add_action_or_reset(dev, sc27xx_adc_free_hwlock,
> - sc27xx_data->hwlock);
> - if (ret) {
> - dev_err(dev, "failed to add hwspinlock action\n");
> - return ret;
> - }
> -
> sc27xx_data->dev = dev;
>
> ret = sc27xx_adc_enable(sc27xx_data);