Re: [PATCH 1/3] hwmon: (pmbus) Add paged support for VIN, IIN, PIN parameters

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On Wed, Jun 05, 2019 at 10:17:12AM -0600, Robert Hancock wrote:
> Previously the VIN, IIN and PIN parameters were marked as non-paged,
> however on the IRPS5401 these parameters are present on multiple pages.
> Add the paged flag for these parameters so they can be detected properly
> on such chips.
> 

Have you tested the impact of this change on other chips where the
registers are non-paged ?

To reduce risk due to potentially mis-detecting support on other chips,
it may be better to add a separate backend driver for this chip. This
would also enable support for the MFR_VOUT_PEAK, MFR_IOUT_PEAK, and
MFR_TEMPERATURE_PEAK registers which is otherwise unavailable.

Thanks,
Guenter

> Signed-off-by: Robert Hancock <hancock@xxxxxxxxxxxxx>
> ---
>  drivers/hwmon/pmbus/pmbus_core.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
> index ef7ee90..6e3aaf1 100644
> --- a/drivers/hwmon/pmbus/pmbus_core.c
> +++ b/drivers/hwmon/pmbus/pmbus_core.c
> @@ -1395,6 +1395,7 @@ static int pmbus_add_sensor_attrs(struct i2c_client *client,
>  		.reg = PMBUS_READ_VIN,
>  		.class = PSC_VOLTAGE_IN,
>  		.label = "vin",
> +		.paged = true,
>  		.func = PMBUS_HAVE_VIN,
>  		.sfunc = PMBUS_HAVE_STATUS_INPUT,
>  		.sbase = PB_STATUS_INPUT_BASE,
> @@ -1499,6 +1500,7 @@ static int pmbus_add_sensor_attrs(struct i2c_client *client,
>  		.reg = PMBUS_READ_IIN,
>  		.class = PSC_CURRENT_IN,
>  		.label = "iin",
> +		.paged = true,
>  		.func = PMBUS_HAVE_IIN,
>  		.sfunc = PMBUS_HAVE_STATUS_INPUT,
>  		.sbase = PB_STATUS_INPUT_BASE,
> @@ -1584,6 +1586,7 @@ static int pmbus_add_sensor_attrs(struct i2c_client *client,
>  		.reg = PMBUS_READ_PIN,
>  		.class = PSC_POWER,
>  		.label = "pin",
> +		.paged = true,
>  		.func = PMBUS_HAVE_PIN,
>  		.sfunc = PMBUS_HAVE_STATUS_INPUT,
>  		.sbase = PB_STATUS_INPUT_BASE,
> -- 
> 1.8.3.1
> 



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