Re: [PATCH 2/4] hwmon: (occ) Add sysfs entry for OCC mode

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On Tue, Feb 15, 2022 at 09:10:20AM -0600, Eddie James wrote:
> BMC control applications need to check the OCC mode returned by the
> OCC poll response, so export it in sysfs with the other OCC-specific
> data.
> 
> Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx>
> Reviewed-by: Joel Stanley <joel@xxxxxxxxx>

Applied to hwmon-next.

Thanks,
Guenter

> ---
>  drivers/hwmon/occ/common.h |  1 +
>  drivers/hwmon/occ/sysfs.c  | 11 +++++++++++
>  2 files changed, 12 insertions(+)
> 
> diff --git a/drivers/hwmon/occ/common.h b/drivers/hwmon/occ/common.h
> index a88c66d36e38..2dd4a4d240c0 100644
> --- a/drivers/hwmon/occ/common.h
> +++ b/drivers/hwmon/occ/common.h
> @@ -120,6 +120,7 @@ struct occ {
>  	u8 prev_ext_stat;
>  	u8 prev_occs_present;
>  	u8 prev_ips_status;
> +	u8 prev_mode;
>  };
>  
>  int occ_setup(struct occ *occ, const char *name);
> diff --git a/drivers/hwmon/occ/sysfs.c b/drivers/hwmon/occ/sysfs.c
> index 6dc69c9aa4c2..88f655887c95 100644
> --- a/drivers/hwmon/occ/sysfs.c
> +++ b/drivers/hwmon/occ/sysfs.c
> @@ -66,6 +66,9 @@ static ssize_t occ_sysfs_show(struct device *dev,
>  	case 8:
>  		val = header->ips_status;
>  		break;
> +	case 9:
> +		val = header->mode;
> +		break;
>  	default:
>  		return -EINVAL;
>  	}
> @@ -92,6 +95,7 @@ static SENSOR_DEVICE_ATTR(occ_quick_pwr_drop, 0444, occ_sysfs_show, NULL, 5);
>  static SENSOR_DEVICE_ATTR(occ_state, 0444, occ_sysfs_show, NULL, 6);
>  static SENSOR_DEVICE_ATTR(occs_present, 0444, occ_sysfs_show, NULL, 7);
>  static SENSOR_DEVICE_ATTR(occ_ips_status, 0444, occ_sysfs_show, NULL, 8);
> +static SENSOR_DEVICE_ATTR(occ_mode, 0444, occ_sysfs_show, NULL, 9);
>  static DEVICE_ATTR_RO(occ_error);
>  
>  static struct attribute *occ_attributes[] = {
> @@ -104,6 +108,7 @@ static struct attribute *occ_attributes[] = {
>  	&sensor_dev_attr_occ_state.dev_attr.attr,
>  	&sensor_dev_attr_occs_present.dev_attr.attr,
>  	&sensor_dev_attr_occ_ips_status.dev_attr.attr,
> +	&sensor_dev_attr_occ_mode.dev_attr.attr,
>  	&dev_attr_occ_error.attr,
>  	NULL
>  };
> @@ -172,6 +177,11 @@ void occ_sysfs_poll_done(struct occ *occ)
>  		sysfs_notify(&occ->bus_dev->kobj, NULL, name);
>  	}
>  
> +	if (header->mode != occ->prev_mode) {
> +		name = sensor_dev_attr_occ_mode.dev_attr.attr.name;
> +		sysfs_notify(&occ->bus_dev->kobj, NULL, name);
> +	}
> +
>  	if (occ->error && occ->error != occ->prev_error) {
>  		name = dev_attr_occ_error.attr.name;
>  		sysfs_notify(&occ->bus_dev->kobj, NULL, name);
> @@ -185,6 +195,7 @@ void occ_sysfs_poll_done(struct occ *occ)
>  	occ->prev_ext_stat = header->ext_status;
>  	occ->prev_occs_present = header->occs_present;
>  	occ->prev_ips_status = header->ips_status;
> +	occ->prev_mode = header->mode;
>  }
>  
>  int occ_setup_sysfs(struct occ *occ)



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