On Tue, 28 Feb 2012 17:18:25 -0800, Guenter Roeck wrote:
> MAX34440 and compatibles support reporting the lowest measured output voltage.
> Add support for it.
>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> drivers/hwmon/pmbus/max34440.c | 9 +++++++++
> 1 files changed, 9 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c
> index 7d830c1..95ee9e1 100644
> --- a/drivers/hwmon/pmbus/max34440.c
> +++ b/drivers/hwmon/pmbus/max34440.c
> @@ -30,6 +30,7 @@ enum chips { max34440, max34441 };
> #define MAX34440_MFR_VOUT_PEAK 0xd4
> #define MAX34440_MFR_IOUT_PEAK 0xd5
> #define MAX34440_MFR_TEMPERATURE_PEAK 0xd6
> +#define MAX34440_MFR_VOUT_MIN 0xd7
>
> #define MAX34440_STATUS_OC_WARN (1 << 0)
> #define MAX34440_STATUS_OC_FAULT (1 << 1)
> @@ -41,6 +42,10 @@ static int max34440_read_word_data(struct i2c_client *client, int page, int reg)
> int ret;
>
> switch (reg) {
> + case PMBUS_VIRT_READ_VOUT_MIN:
> + ret = pmbus_read_word_data(client, page,
> + MAX34440_MFR_VOUT_MIN);
> + break;
> case PMBUS_VIRT_READ_VOUT_MAX:
> ret = pmbus_read_word_data(client, page,
> MAX34440_MFR_VOUT_PEAK);
> @@ -73,6 +78,10 @@ static int max34440_write_word_data(struct i2c_client *client, int page,
> switch (reg) {
> case PMBUS_VIRT_RESET_VOUT_HISTORY:
> ret = pmbus_write_word_data(client, page,
> + MAX34440_MFR_VOUT_MIN, 0x7fff);
> + if (ret)
> + break;
> + ret = pmbus_write_word_data(client, page,
> MAX34440_MFR_VOUT_PEAK, 0);
> break;
> case PMBUS_VIRT_RESET_IOUT_HISTORY:
Looks good.
Acked-by: Jean Delvare <khali@xxxxxxxxxxxx>
--
Jean Delvare
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