From 9f287a1c3fffbc10360d7490f5361fff0255a93d Mon Sep 17 00:00:00 2001
From: Jeremy Fertic <jeremyfertic@gmail.com>
Date: Tue, 11 Dec 2018 17:55:01 -0700
Subject: [PATCH] staging: iio: adt7316: remove dac vref buffer bypass from
 adt751x

The option to allow the external vref to bypass the reference buffer is
only available for adt7316/7/8. Remove the attributes for adt751x as
well as the chip->id checks from the show and store functions.

Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/staging/iio/addac/adt7316.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index ab6de60a94ae6..0ee925edad042 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -969,9 +969,6 @@ static ssize_t adt7316_show_DA_AB_Vref_bypass(struct device *dev,
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
 	return sprintf(buf, "%d\n",
 		!!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_AB));
 }
@@ -986,9 +983,6 @@ static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev,
 	u8 dac_config;
 	int ret;
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
 	dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_AB);
 	if (buf[0] == '1')
 		dac_config |= ADT7316_VREF_BYPASS_DAC_AB;
@@ -1014,9 +1008,6 @@ static ssize_t adt7316_show_DA_CD_Vref_bypass(struct device *dev,
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
 	return sprintf(buf, "%d\n",
 		!!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_CD));
 }
@@ -1031,9 +1022,6 @@ static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev,
 	u8 dac_config;
 	int ret;
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
 	dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_CD);
 	if (buf[0] == '1')
 		dac_config |= ADT7316_VREF_BYPASS_DAC_CD;
@@ -1710,8 +1698,6 @@ static struct attribute *adt7516_attributes[] = {
 	&iio_dev_attr_DAC_update_mode.dev_attr.attr,
 	&iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
 	&iio_dev_attr_update_DAC.dev_attr.attr,
-	&iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
-	&iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
 	&iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
 	&iio_dev_attr_VDD.dev_attr.attr,
 	&iio_dev_attr_in_temp.dev_attr.attr,
-- 
GitLab