Commit a4872f7a authored by Tim Harvey's avatar Tim Harvey Committed by Guenter Roeck
Browse files

hwmon: (gsc) add 16bit pre-scaled voltage mode 



add a 16-bit pre-scaled voltage mode to adc and clarify that existing
pre-scaled mode is 24bit.

Signed-off-by: default avatarTim Harvey <tharvey@gateworks.com>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1591714640-10332-3-git-send-email-tharvey@gateworks.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent a37881de

drivers/hwmon/gsc-hwmon.c

+5 −3
Original line number Diff line number Diff line
@@ -159,7 +159,7 @@ gsc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
		return -EOPNOTSUPP;

	}



	sz = (ch->mode == mode_voltage) ? 3 : 2;

	sz = (ch->mode == mode_voltage_24bit) ? 3 : 2;

	ret = regmap_bulk_read(hwmon->regmap, ch->reg, buf, sz);

	if (ret)

		return ret;
@@ -186,7 +186,8 @@ gsc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, 
		/* adjust by uV offset */

		tmp += ch->mvoffset;

		break;

	case mode_voltage:

	case mode_voltage_24bit:

	case mode_voltage_16bit:

		/* no adjustment needed */

		break;

	}
@@ -336,7 +337,8 @@ static int gsc_hwmon_probe(struct platform_device *pdev) 
						     HWMON_T_LABEL;

			i_temp++;

			break;

		case mode_voltage:

		case mode_voltage_24bit:

		case mode_voltage_16bit:

		case mode_voltage_raw:

			if (i_in == GSC_HWMON_MAX_IN_CH) {

				dev_err(gsc->dev, "too many input channels\n");

include/linux/platform_data/gsc_hwmon.h

+2 −1
Original line number Diff line number Diff line
@@ -4,8 +4,9 @@ 


enum gsc_hwmon_mode {

	mode_temperature,

	mode_voltage,

	mode_voltage_24bit,

	mode_voltage_raw,

	mode_voltage_16bit,

	mode_max,

};

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