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Message-ID: <b6f0a393-0715-1541-631d-5b98c0d7b155@9elements.com>
Date: Wed, 30 Nov 2022 23:42:32 +0530
From: Naresh Solanki <naresh.solanki@...ements.com>
To: Guenter Roeck <linux@...ck-us.net>
Cc: devicetree@...r.kernel.org, Jean Delvare <jdelvare@...e.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
linux-hwmon@...r.kernel.org,
Patrick Rudolph <patrick.rudolph@...ements.com>
Subject: Re: [PATCH v3 1/4] hwmon: (pmbus/core): Add status byte to regulator
flag map
Hi,
On 30-11-2022 11:36 pm, Guenter Roeck wrote:
> On Wed, Nov 30, 2022 at 05:58:28PM +0100, Naresh Solanki wrote:
>> Add PMBus status byte to regulator flag map.
>>
>> Signed-off-by: Naresh Solanki <Naresh.Solanki@...ements.com>
>>
>> ---
>> Changes:
>> - Remove status input
>
> Not really.
>
This was about PMBUS_STATUS_INPUT & not STATUS_BYTE
>> - Add comment for PMBUS status byte.
>> ---
>> drivers/hwmon/pmbus/pmbus_core.c | 20 +++++++++++---------
>> 1 file changed, 11 insertions(+), 9 deletions(-)
>>
>> diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
>> index 95e95783972a..a7b4ae0f1f3b 100644
>> --- a/drivers/hwmon/pmbus/pmbus_core.c
>> +++ b/drivers/hwmon/pmbus/pmbus_core.c
>> @@ -2751,7 +2751,16 @@ struct pmbus_regulator_status_category {
>> };
>>
>> static const struct pmbus_regulator_status_category pmbus_regulator_flag_map[] = {
>> - {
>> + { /* STATUS byte is always present. */
>> + .func = -1,
>> + .reg = PMBUS_STATUS_BYTE,
>> + .bits = (const struct pmbus_regulator_status_assoc[]) {
>> + { PB_STATUS_IOUT_OC, REGULATOR_ERROR_OVER_CURRENT },
>> + { PB_STATUS_VOUT_OV, REGULATOR_ERROR_REGULATION_OUT },
>> + { PB_STATUS_VIN_UV, REGULATOR_ERROR_UNDER_VOLTAGE },
>
> Still there.
>
STATUS_INPUT remove & STATUS_BYTE retained.
>> + { },
>> + },
>> + }, {
>> .func = PMBUS_HAVE_STATUS_VOUT,
>> .reg = PMBUS_STATUS_VOUT,
>> .bits = (const struct pmbus_regulator_status_assoc[]) {
>> @@ -2768,6 +2777,7 @@ static const struct pmbus_regulator_status_category pmbus_regulator_flag_map[] =
>> { PB_IOUT_OC_WARNING, REGULATOR_ERROR_OVER_CURRENT_WARN },
>> { PB_IOUT_OC_FAULT, REGULATOR_ERROR_OVER_CURRENT },
>> { PB_IOUT_OC_LV_FAULT, REGULATOR_ERROR_OVER_CURRENT },
>> + { PB_POUT_OP_FAULT, REGULATOR_ERROR_FAIL },
>
> Please document your changes in the description. There are two functional
> changes hidden under "Add PMBus status byte to regulator flag map".
> That is inappropriate. Those, as I have pointed out, should be separate
> patches.
My bad. I kept this change in this patch. Will remove this from this patch.
>
> Guenter
>
>> { },
>> },
>> }, {
>> @@ -2834,14 +2844,6 @@ static int pmbus_regulator_get_error_flags(struct regulator_dev *rdev, unsigned
>> if (status & PB_STATUS_POWER_GOOD_N)
>> *flags |= REGULATOR_ERROR_REGULATION_OUT;
>> }
>> - /*
>> - * Unlike most other status bits, PB_STATUS_{IOUT_OC,VOUT_OV} are
>> - * defined strictly as fault indicators (not warnings).
>> - */
>> - if (status & PB_STATUS_IOUT_OC)
>> - *flags |= REGULATOR_ERROR_OVER_CURRENT;
>> - if (status & PB_STATUS_VOUT_OV)
>> - *flags |= REGULATOR_ERROR_REGULATION_OUT;
>>
>> /*
>> * If we haven't discovered any thermal faults or warnings via
>>
>> base-commit: 9494c53e1389b120ba461899207ac8a3aab2632c
>> --
>> 2.37.3
>>
Regards,
Naresh
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