linux-kernel - [PATCH 09/11] staging: iio: adt7316: remove dac vref buffer bypass from adt751x

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Date:   Tue, 11 Dec 2018 17:55:01 -0700
From:   Jeremy Fertic <jeremyfertic@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org,
        Jeremy Fertic <jeremyfertic@...il.com>
Subject: [PATCH 09/11] 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@...il.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 3348fdf08f2e..bca599d8c51c 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -964,9 +964,6 @@ 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));
 }
@@ -981,9 +978,6 @@ 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;
@@ -1009,9 +1003,6 @@ 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));
 }
@@ -1026,9 +1017,6 @@ 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;
@@ -1713,8 +1701,6 @@ 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,
-- 
2.19.1