Re: [PATCH v5 4/5] power: supply: Add support for mps mp2629 battery charger

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Hi Andy,

On 28/03/20 12:02 pm, Andy Shevchenko wrote:
On Sat, Mar 28, 2020 at 2:12 AM Saravanan Sekar <sravanhome@xxxxxxxxx> wrote:
The mp2629 provides switching-mode battery charge management for
single-cell Li-ion or Li-polymer battery. Driver supports the
access/control input source and battery charging parameters.
...

+#include <linux/module.h>
+#include <linux/of_device.h>
Missed header bits.h.

...

+       ret = iio_read_channel_processed(charger->iiochan[ch], &chval);
+       if (ret < 0)
Is it possible to get positive returned value?
Really not for processed
+               return ret;
...

+       val->intval = (rval * props[fld].step) + props[fld].min;
Too many parentheses.

...

+       return ((psp == POWER_SUPPLY_PROP_PRECHARGE_CURRENT) ||
+               (psp == POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT) ||
+               (psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT) ||
+               (psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE));
Ditto.
I think I misunderstood you previous review comment "Redundant parentheses", no sure what is the expectation

...

+       return ((psp == POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT) ||
+               (psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT));
Ditto.

...

+       return sprintf(buf, "%d mohm\n", rval);
Hmm... For units we usually have separate node, but it is up to
maintainer, I dunno what the common practice is there.

...

+       int val;
+       int ret;
+
+       ret = kstrtoint(buf, 10, &val);
+       if (ret)
+               return ret;
+
+       if (val < 0 && val > 140)
What the point to convert negative values in the first place? kstrtouint()
Done
+               return -ERANGE;
...

+       struct power_supply_config psy_cfg = {NULL};
{ 0 }

NULL to make compiler happy.



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