On Sun, 18 Oct 2020 08:47:32 +0530
Vaishnav M A <vaishnav@xxxxxxxxxxxxxxx> wrote:
A very similar change was made recently in
00fa493b9989 ("iio:proximity:as3935: Drop of_match_ptr and use generic fw accessors")
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=00fa493b99894b930e431c05a9dba294c5189120
Review follows for reference as I wrote it before remembering the above!
> replace the of_property_read_u32 for reading
> the ams,tuning-capacitor-pf, ams,nflwdth properties with
> device_property_read_u32, allows the driver to get the properties
> information using the more generic device_property_* helpers and opens
> the possibility of passing the properties during platform instantiation
> of the device by a suitably populated struct property_entry
Please format this to aid readability.
Replace of_property_read_u32() with device_property_read_u32,
when reading the ams,tuning-capacitor-pf and ams,nflwdth properties.
This opens up the possibility of passing the properties during platform
instantiation of the device by a suitable populated struct property_entry.
As in your other patch, please add the header property.h.
>
> Signed-off-by: Vaishnav M A <vaishnav@xxxxxxxxxxxxxxx>
> ---
> v2:
> - fix commit message
> drivers/iio/proximity/as3935.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c
> index c339e7339ec8..7e47ddf89a56 100644
> --- a/drivers/iio/proximity/as3935.c
> +++ b/drivers/iio/proximity/as3935.c
> @@ -355,7 +355,6 @@ static int as3935_probe(struct spi_device *spi)
> struct iio_dev *indio_dev;
> struct iio_trigger *trig;
> struct as3935_state *st;
> - struct device_node *np = spi->dev.of_node;
> int ret;
>
> /* Be sure lightning event interrupt is specified */
> @@ -374,7 +373,7 @@ static int as3935_probe(struct spi_device *spi)
> spi_set_drvdata(spi, indio_dev);
> mutex_init(&st->lock);
>
> - ret = of_property_read_u32(np,
> + ret = device_property_read_u32(&spi->dev,
> "ams,tuning-capacitor-pf", &st->tune_cap);
> if (ret) {
> st->tune_cap = 0;
> @@ -390,7 +389,7 @@ static int as3935_probe(struct spi_device *spi)
> return -EINVAL;
> }
>
> - ret = of_property_read_u32(np,
> + ret = device_property_read_u32(&spi->dev,
> "ams,nflwdth", &st->nflwdth_reg);
> if (!ret && st->nflwdth_reg > AS3935_NFLWDTH_MASK) {
> dev_err(&spi->dev,
