On 05/29/2017 05:45 PM, Benjamin Gaignard wrote:
> Use devm_of_platform_populate() instead of of_platform_populate and
> of_platform_depopulate to simplify driver code
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx>
>
> CC: Jonathan Cameron <jic23@xxxxxxxxxx>
> CC: Hartmut Knaack <knaack.h@xxxxxx>
> CC: Lars-Peter Clausen <lars@xxxxxxxxxx>
> CC: Alexandre Torgue <alexandre.torgue@xxxxxx>
> CC: Fabrice Gasnier <fabrice.gasnier@xxxxxx>
> CC: linux-iio@xxxxxxxxxxxxxxx
> CC: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> CC: linux-kernel@xxxxxxxxxxxxxxx
> ---
> drivers/iio/adc/stm32-adc-core.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
> index 22b7c93..46e41dc5 100644
> --- a/drivers/iio/adc/stm32-adc-core.c
> +++ b/drivers/iio/adc/stm32-adc-core.c
> @@ -186,7 +186,6 @@ static void stm32_adc_irq_remove(struct platform_device *pdev,
> static int stm32_adc_probe(struct platform_device *pdev)
> {
> struct stm32_adc_priv *priv;
> - struct device_node *np = pdev->dev.of_node;
> struct resource *res;
> int ret;
>
> @@ -249,7 +248,7 @@ static int stm32_adc_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, &priv->common);
>
> - ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
> + ret = devm_of_platform_populate(&pdev->dev);
> if (ret < 0) {
> dev_err(&pdev->dev, "failed to populate DT children\n");
> goto err_irq_remove;
> @@ -274,7 +273,6 @@ static int stm32_adc_remove(struct platform_device *pdev)
> struct stm32_adc_common *common = platform_get_drvdata(pdev);
> struct stm32_adc_priv *priv = to_stm32_adc_priv(common);
>
> - of_platform_depopulate(&pdev->dev);
Hi Benjamin,
This is going to change order of sub devices removal. It may end-up with
bellow resources being removed while sub-device still needs them.
Not sure this is a good candidate for such a change.
Best Regards,
Fabrice
> stm32_adc_irq_remove(pdev, priv);
> clk_disable_unprepare(priv->aclk);
> regulator_disable(priv->vref);
>
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