On Wed, Aug 11, 2021 at 04:17:37PM +1200, Chris Packham wrote:
> Commit 787c095edaa9 ("hwmon: (pmbus/core) Add support for rated
> attributes") added definitions for MFR_VIN_MIN etc so we can remove the
> local definitions of these from the bpa-rs600 driver.
>
> Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
> ---
> drivers/hwmon/pmbus/bpa-rs600.c | 25 ++++++++-----------------
> 1 file changed, 8 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/hwmon/pmbus/bpa-rs600.c b/drivers/hwmon/pmbus/bpa-rs600.c
> index d205b41540ce..d495faa89799 100644
> --- a/drivers/hwmon/pmbus/bpa-rs600.c
> +++ b/drivers/hwmon/pmbus/bpa-rs600.c
> @@ -12,15 +12,6 @@
> #include <linux/pmbus.h>
> #include "pmbus.h"
>
> -#define BPARS600_MFR_VIN_MIN 0xa0
> -#define BPARS600_MFR_VIN_MAX 0xa1
> -#define BPARS600_MFR_IIN_MAX 0xa2
> -#define BPARS600_MFR_PIN_MAX 0xa3
> -#define BPARS600_MFR_VOUT_MIN 0xa4
> -#define BPARS600_MFR_VOUT_MAX 0xa5
> -#define BPARS600_MFR_IOUT_MAX 0xa6
> -#define BPARS600_MFR_POUT_MAX 0xa7
> -
> enum chips { bpa_rs600, bpd_rs600 };
>
> static int bpa_rs600_read_byte_data(struct i2c_client *client, int page, int reg)
> @@ -83,28 +74,28 @@ static int bpa_rs600_read_word_data(struct i2c_client *client, int page, int pha
>
> switch (reg) {
> case PMBUS_VIN_UV_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_VIN_MIN);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_VIN_MIN);
> break;
> case PMBUS_VIN_OV_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_VIN_MAX);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_VIN_MAX);
> break;
> case PMBUS_VOUT_UV_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_VOUT_MIN);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_VOUT_MIN);
> break;
> case PMBUS_VOUT_OV_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_VOUT_MAX);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_VOUT_MAX);
> break;
> case PMBUS_IIN_OC_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_IIN_MAX);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_IIN_MAX);
> break;
> case PMBUS_IOUT_OC_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_IOUT_MAX);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_IOUT_MAX);
> break;
> case PMBUS_PIN_OP_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_PIN_MAX);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_PIN_MAX);
> break;
> case PMBUS_POUT_OP_WARN_LIMIT:
> - ret = pmbus_read_word_data(client, 0, 0xff, BPARS600_MFR_POUT_MAX);
> + ret = pmbus_read_word_data(client, 0, 0xff, PMBUS_MFR_POUT_MAX);
If the above is correct, the driver reports the wrong attributes. For example,
PMBUS_MFR_PIN_MAX is supposed to report the rated limit, not the warning limit.
What does the datasheet say ?
Guenter
> break;
> case PMBUS_VIN_UV_FAULT_LIMIT:
> case PMBUS_VIN_OV_FAULT_LIMIT:
> --
> 2.32.0
>
