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SubjectRe: [Patch v2 05/10] iio: using dev_get_drvdata directly
On Thu, 4 Jul 2019 10:36:13 +0800
Fuqian Huang <huangfq.daxian@gmail.com> wrote:

> Several drivers cast a struct device pointer to a struct
> platform_device pointer only to then call platform_get_drvdata().
> To improve readability, these constructs can be simplified
> by using dev_get_drvdata() directly.
>
> Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Hi.

I applied a version from Kefeng Wang a while back. It'll be queued
up for the merge window that is about to open.

Thanks,

Jonathan

> ---
> Changes in v2:
> - Make the commit message more clearly.
>
> drivers/iio/adc/at91-sama5d2_adc.c | 12 ++++--------
> drivers/iio/adc/at91_adc.c | 4 ++--
> 2 files changed, 6 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
> index d384cf0250ff..a2837a0e7cba 100644
> --- a/drivers/iio/adc/at91-sama5d2_adc.c
> +++ b/drivers/iio/adc/at91-sama5d2_adc.c
> @@ -1578,8 +1578,7 @@ static void at91_adc_hw_init(struct at91_adc_state *st)
> static ssize_t at91_adc_get_fifo_state(struct device *dev,
> struct device_attribute *attr, char *buf)
> {
> - struct iio_dev *indio_dev =
> - platform_get_drvdata(to_platform_device(dev));
> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> struct at91_adc_state *st = iio_priv(indio_dev);
>
> return scnprintf(buf, PAGE_SIZE, "%d\n", !!st->dma_st.dma_chan);
> @@ -1588,8 +1587,7 @@ static ssize_t at91_adc_get_fifo_state(struct device *dev,
> static ssize_t at91_adc_get_watermark(struct device *dev,
> struct device_attribute *attr, char *buf)
> {
> - struct iio_dev *indio_dev =
> - platform_get_drvdata(to_platform_device(dev));
> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> struct at91_adc_state *st = iio_priv(indio_dev);
>
> return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark);
> @@ -1841,8 +1839,7 @@ static int at91_adc_remove(struct platform_device *pdev)
>
> static __maybe_unused int at91_adc_suspend(struct device *dev)
> {
> - struct iio_dev *indio_dev =
> - platform_get_drvdata(to_platform_device(dev));
> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> struct at91_adc_state *st = iio_priv(indio_dev);
>
> /*
> @@ -1862,8 +1859,7 @@ static __maybe_unused int at91_adc_suspend(struct device *dev)
>
> static __maybe_unused int at91_adc_resume(struct device *dev)
> {
> - struct iio_dev *indio_dev =
> - platform_get_drvdata(to_platform_device(dev));
> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> struct at91_adc_state *st = iio_priv(indio_dev);
> int ret;
>
> diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
> index d23709ed9049..32f1c4a33b20 100644
> --- a/drivers/iio/adc/at91_adc.c
> +++ b/drivers/iio/adc/at91_adc.c
> @@ -1359,7 +1359,7 @@ static int at91_adc_remove(struct platform_device *pdev)
> #ifdef CONFIG_PM_SLEEP
> static int at91_adc_suspend(struct device *dev)
> {
> - struct iio_dev *idev = platform_get_drvdata(to_platform_device(dev));
> + struct iio_dev *idev = dev_get_drvdata(dev);
> struct at91_adc_state *st = iio_priv(idev);
>
> pinctrl_pm_select_sleep_state(dev);
> @@ -1370,7 +1370,7 @@ static int at91_adc_suspend(struct device *dev)
>
> static int at91_adc_resume(struct device *dev)
> {
> - struct iio_dev *idev = platform_get_drvdata(to_platform_device(dev));
> + struct iio_dev *idev = dev_get_drvdata(dev);
> struct at91_adc_state *st = iio_priv(idev);
>
> clk_prepare_enable(st->clk);


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