Re: [PATCH v4 3/5] iio: adc: mp2629: Add support for mp2629 ADC driver

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Andy,

On 28/03/20 3:42 pm, Jonathan Cameron wrote:
On Mon, 23 Mar 2020 01:32:34 +0200
Andy Shevchenko <andy.shevchenko@xxxxxxxxx> wrote:

On Mon, Mar 23, 2020 at 12:47 AM Saravanan Sekar <sravanhome@xxxxxxxxx> wrote:
Add support for 8-bit resolution ADC readings for input power
supply and battery charging measurement. Provides voltage, current
readings to mp2629 power supply driver.
...

+#include <linux/platform_device.h>
+#include <linux/of_device.h>
Don't see users of it.
Forgot to reply, its needed since I used struct of_device
"error: field name not in record or union initializer
  { .compatible = "mps,mp2629_charger"},"
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/regulator/consumer.h>
+#include <linux/sysfs.h>
Any users?

+#include <linux/regmap.h>
Perhaps ordered?

+#include <linux/iio/iio.h>
+#include <linux/iio/machine.h>
+#include <linux/iio/driver.h>
+ blank line?

+#include <linux/mfd/mp2629.h>
...

+static int mp2629_read_raw(struct iio_dev *indio_dev,
+                       struct iio_chan_spec const *chan,
+                       int *val, int *val2, long mask)
+{
+       struct mp2629_adc *info = iio_priv(indio_dev);
+       unsigned int rval;
+       int ret;
+
+       switch (mask) {
+       case IIO_CHAN_INFO_RAW:
+               ret = regmap_read(info->regmap, chan->address, &rval);
+               if (ret < 0)
+                       return ret;
+
+               if (chan->address == MP2629_INPUT_VOLT)
+                       rval &= 0x7f;
GENMASK() ?

+               *val = rval;
+               return IIO_VAL_INT;
+       return 0;
+}
...

+       void **pdata = pdev->dev.platform_data;
Same Qs as per other patch.

...

+       indio_dev->dev.of_node = pdev->dev.of_node;
Jonathan, doesn't IIO core do this for all?

Nope.  I'm not totally sure it's always safe to do so
as we have some weird parent structures in some cases.
A quick grep suggests that we may be fine though, or
alternatively be able to get away with a set it if not
already set approach.

I'll take a look when I get some time. It would be nice
to clean this up.

Jonathan







[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux