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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: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1591714640-10332-3-git-send-email-tharvey@gateworks.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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@ -159,7 +159,7 @@ gsc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
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return -EOPNOTSUPP;
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}
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sz = (ch->mode == mode_voltage) ? 3 : 2;
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sz = (ch->mode == mode_voltage_24bit) ? 3 : 2;
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ret = regmap_bulk_read(hwmon->regmap, ch->reg, buf, sz);
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if (ret)
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return ret;
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@ -186,7 +186,8 @@ gsc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
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/* adjust by uV offset */
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tmp += ch->mvoffset;
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break;
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case mode_voltage:
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case mode_voltage_24bit:
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case mode_voltage_16bit:
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/* no adjustment needed */
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break;
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}
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@ -336,7 +337,8 @@ static int gsc_hwmon_probe(struct platform_device *pdev)
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HWMON_T_LABEL;
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i_temp++;
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break;
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case mode_voltage:
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case mode_voltage_24bit:
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case mode_voltage_16bit:
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case mode_voltage_raw:
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if (i_in == GSC_HWMON_MAX_IN_CH) {
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dev_err(gsc->dev, "too many input channels\n");
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@ -4,8 +4,9 @@
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enum gsc_hwmon_mode {
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mode_temperature,
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mode_voltage,
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mode_voltage_24bit,
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mode_voltage_raw,
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mode_voltage_16bit,
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mode_max,
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};
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