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From: Tim Harvey <tharvey@gateworks.com>
To: Rob Herring <robh+dt@kernel.org>,
	Jean Delvare <jdelvare@suse.com>,
	Guenter Roeck <linux@roeck-us.net>
Cc: Lee Jones <lee.jones@linaro.org>,
	Robert Jones <rjones@gateworks.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-hwmon@vger.kernel.org, Tim Harvey <tharvey@gateworks.com>
Subject: [PATCH 2/2] hwmon: (gsc): add 16bit pre-scaled voltage mode
Date: Tue,  9 Jun 2020 07:57:20 -0700	[thread overview]
Message-ID: <1591714640-10332-3-git-send-email-tharvey@gateworks.com> (raw)
In-Reply-To: <1591714640-10332-1-git-send-email-tharvey@gateworks.com>

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>
---
 drivers/hwmon/gsc-hwmon.c               | 8 +++++---
 include/linux/platform_data/gsc_hwmon.h | 3 ++-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/gsc-hwmon.c b/drivers/hwmon/gsc-hwmon.c
index 2137bc6..3dfe2ca 100644
--- a/drivers/hwmon/gsc-hwmon.c
+++ b/drivers/hwmon/gsc-hwmon.c
@@ -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");
diff --git a/include/linux/platform_data/gsc_hwmon.h b/include/linux/platform_data/gsc_hwmon.h
index ec1611a..37a8f554d 100644
--- a/include/linux/platform_data/gsc_hwmon.h
+++ b/include/linux/platform_data/gsc_hwmon.h
@@ -4,8 +4,9 @@
 
 enum gsc_hwmon_mode {
 	mode_temperature,
-	mode_voltage,
+	mode_voltage_24bit,
 	mode_voltage_raw,
+	mode_voltage_16bit,
 	mode_max,
 };
 
-- 
2.7.4


  parent reply	other threads:[~2020-06-09 14:57 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-09 14:57 [PATCH 0/2] add 16bit pre-scaled adc mode to Gateworks GSC hwmon Tim Harvey
2020-06-09 14:57 ` [PATCH 1/2] dt-bindings: mfd: gateworks-gsc: add 16bit pre-scaled voltage mode Tim Harvey
2020-06-17 21:47   ` Rob Herring
2020-06-18  7:39   ` Lee Jones
2020-06-09 14:57 ` Tim Harvey [this message]
2020-06-11 13:47   ` [PATCH 2/2] hwmon: (gsc): " Guenter Roeck
2020-06-23 14:09   ` Guenter Roeck

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