From: Jeremy Fertic <jeremyfertic@gmail.com>
To: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>,
Hartmut Knaack <knaack.h@gmx.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-iio@vger.kernel.org, devel@driverdev.osuosl.org,
linux-kernel@vger.kernel.org,
Jeremy Fertic <jeremyfertic@gmail.com>
Subject: [PATCH 03/11] staging: iio: adt7316: fix dac_bits assignment
Date: Tue, 11 Dec 2018 17:54:55 -0700 [thread overview]
Message-ID: <20181212005503.28054-4-jeremyfertic@gmail.com> (raw)
In-Reply-To: <20181212005503.28054-1-jeremyfertic@gmail.com>
The only assignment to dac_bits is in adt7316_store_da_high_resolution().
This function enables or disables 10 bit dac resolution for the adt7316/7
and adt7516/7 when they're set to output voltage proportional to
temperature. Remove these assignments since they're unnecessary for the
dac high resolution functionality.
Instead, assign a value to dac_bits in adt7316_probe() since the number
of dac bits might be needed as soon as the device is registered and
available to userspace.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
---
drivers/staging/iio/addac/adt7316.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index e5e1f9d6357f..a9990e7f2a4d 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -651,17 +651,10 @@ static ssize_t adt7316_store_da_high_resolution(struct device *dev,
u8 config3;
int ret;
- chip->dac_bits = 8;
-
- if (buf[0] == '1') {
+ if (buf[0] == '1')
config3 = chip->config3 | ADT7316_DA_HIGH_RESOLUTION;
- if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
- chip->dac_bits = 12;
- else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
- chip->dac_bits = 10;
- } else {
+ else
config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION);
- }
ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
if (ret)
@@ -2123,6 +2116,13 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
else
return -ENODEV;
+ if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
+ chip->dac_bits = 12;
+ else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
+ chip->dac_bits = 10;
+ else
+ chip->dac_bits = 8;
+
chip->ldac_pin = devm_gpiod_get_optional(dev, "adi,ldac", GPIOD_OUT_LOW);
if (IS_ERR(chip->ldac_pin)) {
ret = PTR_ERR(chip->ldac_pin);
--
2.19.1
next prev parent reply other threads:[~2018-12-12 0:56 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-12 0:54 [PATCH 00/11] staging: iio: adt7316: dac fixes Jeremy Fertic
2018-12-12 0:54 ` [PATCH 01/11] staging: iio: adt7316: fix register and bit definitions Jeremy Fertic
2018-12-16 11:19 ` Jonathan Cameron
2018-12-12 0:54 ` [PATCH 02/11] staging: iio: adt7316: invert the logic of the check for an ldac pin Jeremy Fertic
2018-12-12 8:19 ` Dan Carpenter
2018-12-13 22:06 ` Jeremy Fertic
2018-12-14 6:18 ` Dan Carpenter
2018-12-16 11:23 ` Jonathan Cameron
2018-12-12 0:54 ` Jeremy Fertic [this message]
2018-12-16 11:37 ` [PATCH 03/11] staging: iio: adt7316: fix dac_bits assignment Jonathan Cameron
2018-12-17 21:30 ` Jeremy Fertic
2018-12-22 18:03 ` Jonathan Cameron
2018-12-22 18:03 ` Jonathan Cameron
2018-12-12 0:54 ` [PATCH 04/11] staging: iio: adt7316: fix handling of dac high resolution option Jeremy Fertic
2018-12-12 8:23 ` Dan Carpenter
2018-12-13 22:01 ` Jeremy Fertic
2018-12-14 6:26 ` Dan Carpenter
2018-12-14 21:29 ` Jeremy Fertic
2018-12-12 0:54 ` [PATCH 05/11] staging: iio: adt7316: fix the dac read calculation Jeremy Fertic
2018-12-16 11:45 ` Jonathan Cameron
2018-12-12 0:54 ` [PATCH 06/11] staging: iio: adt7316: fix the dac write calculation Jeremy Fertic
2018-12-16 11:47 ` Jonathan Cameron
2018-12-12 0:54 ` [PATCH 07/11] staging: iio: adt7316: use correct variable in DAC_internal_Vref read Jeremy Fertic
2018-12-16 11:51 ` Jonathan Cameron
2018-12-12 0:55 ` [PATCH 08/11] staging: iio: adt7316: allow adt751x to use internal vref for all dacs Jeremy Fertic
2018-12-16 11:54 ` Jonathan Cameron
2018-12-12 0:55 ` [PATCH 09/11] staging: iio: adt7316: remove dac vref buffer bypass from adt751x Jeremy Fertic
2018-12-16 11:56 ` Jonathan Cameron
2018-12-12 0:55 ` [PATCH 10/11] staging: iio: adt7316: change interpretation of write to dac update mode Jeremy Fertic
2018-12-12 8:31 ` Dan Carpenter
2018-12-12 11:05 ` Jonathan Cameron
2018-12-16 11:59 ` Jonathan Cameron
2018-12-12 0:55 ` [PATCH 11/11] staging: iio: adt7316: correct spelling of ADT7316_DA_EN_VIA_DAC_LDCA Jeremy Fertic
2018-12-16 12:00 ` Jonathan Cameron
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