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SubjectRe: [PATCH V5 3/5] iio: adc: Add support for PMIC7 ADC
On Fri, May 22, 2020 at 5:25 PM Jishnu Prakash <jprakash@codeaurora.org> wrote:
>
> The ADC architecture on PMIC7 is changed as compared to PMIC5. The
> major change from PMIC5 is that all SW communication to ADC goes through
> PMK8350, which communicates with other PMICs through PBS when the ADC
> on PMK8350 works in master mode. The SID register is used to identify the
> PMICs with which the PBS needs to communicate. Add support for the same.

Below should be in a separate patch, but it's a bikeshedding. So, I
left it to maintainers to decide.
Fine with me
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

...

> @@ -285,7 +304,7 @@ static int adc5_configure(struct adc5_chip *adc,
>
> /* Read registers 0x42 through 0x46 */
> ret = adc5_read(adc, ADC5_USR_DIG_PARAM, buf, sizeof(buf));
> - if (ret < 0)
> + if (ret)
> return ret;
>
> /* Digital param selection */

...

> @@ -331,7 +391,7 @@ static int adc5_do_conversion(struct adc5_chip *adc,
>
> if (adc->poll_eoc) {
> ret = adc5_poll_wait_eoc(adc);
> - if (ret < 0) {
> + if (ret) {
> pr_err("EOC bit not set\n");
> goto unlock;
> }
> @@ -341,7 +401,7 @@ static int adc5_do_conversion(struct adc5_chip *adc,
> if (!ret) {
> pr_debug("Did not get completion timeout.\n");
> ret = adc5_poll_wait_eoc(adc);
> - if (ret < 0) {
> + if (ret) {
> pr_err("EOC bit not set\n");
> goto unlock;
> }

...

> @@ -406,8 +519,38 @@ static int adc5_read_raw(struct iio_dev *indio_dev,
> default:
> return -EINVAL;
> }
> +}
>
> - return 0;

(this one looks like standalone change from above)

...

> @@ -570,7 +762,7 @@ static int adc5_get_dt_channel_data(struct adc5_chip *adc,
>
> ret = adc5_read(adc, ADC5_USR_REVISION1, dig_version,
> sizeof(dig_version));
> - if (ret < 0) {
> + if (ret) {
> dev_err(dev, "Invalid dig version read %d\n", ret);
> return ret;
> }

...

> + if (of_device_is_compatible(node, "qcom,spmi-adc7"))
> + indio_dev->info = &adc7_info;
> + else
> + indio_dev->info = &adc5_info;

Can we use driver_data?

...

> + if (adcmap7_die_temp[0].x > voltage) {
> + *result_mdec = DIE_TEMP_ADC7_SCALE_1;
> + return 0;

> + } else if (adcmap7_die_temp[i].x <= voltage) {

As per previous comment, redundant 'else' and please use value of i
directly here.


--
With Best Regards,
Andy Shevchenko

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