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linux-stable/drivers/iio/dac
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Jean-Francois Dagenais 0600353150 iio: dac: mcp4725: add missing powerdown bits in store eeprom 
When issuing the write DAC register and write eeprom command, the two
powerdown bits (PD0 and PD1) are assumed by the chip to be present in
the bytes sent. Leaving them at 0 implies "powerdown disabled" which is
a different state that the current one. By adding the current state of
the powerdown in the i2c write, the chip will correctly power-on exactly
like as it is at the moment of store_eeprom call.

This is documented in MCP4725's datasheet, FIGURE 6-2: "Write Commands
for DAC Input Register and EEPROM" and MCP4726's datasheet, FIGURE 6-3:
"Write All Memory Command".

Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-03-16 15:15:31 +00:00
..
ad5064.c iio: ad5064: Fix regulator handling 2018-09-29 13:28:47 +01:00
ad5360.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ad5380.c iio: Replace occurrences of magic number 0 by IIO_CHAN_INFO_RAW 2018-03-07 20:14:36 +00:00
ad5421.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ad5446.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
ad5449.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ad5504.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
ad5592r-base.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
ad5592r-base.h
ad5592r.c iio: dac: ad5592r: Add ACPI support 2016-12-30 17:19:36 +00:00
ad5593r.c iio: dac: ad5593r: Add ACPI support 2016-12-30 17:20:14 +00:00
ad5624r.h
ad5624r_spi.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ad5686-spi.c drivers: iio: dac: Fix wrong license for ADI drivers 2019-02-09 18:46:01 +00:00
ad5686.c drivers: iio: dac: Fix wrong license for ADI drivers 2019-02-09 18:46:01 +00:00
ad5686.h drivers: iio: dac: Fix wrong license for ADI drivers 2019-02-09 18:46:01 +00:00
ad5696-i2c.c drivers: iio: dac: Fix wrong license for ADI drivers 2019-02-09 18:46:01 +00:00
ad5755.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ad5758.c drivers: iio: dac: Fix wrong license for ADI drivers 2019-02-09 18:46:01 +00:00
ad5761.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ad5764.c iio: Replace occurrences of magic number 0 by IIO_CHAN_INFO_RAW 2018-03-07 20:14:36 +00:00
ad5791.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
ad7303.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ad8801.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
cio-dac.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
dpot-dac.c iio: dpot-dac: mark expected switch fall-through with text GCC expects. 2018-10-14 18:01:00 +01:00
ds4424.c iio: dac: ds4422/ds4424 dac driver 2017-10-09 20:49:39 +01:00
Kconfig iio:dac:ti-dac7612: Add driver for Texas Instruments DAC7612 2019-02-09 18:46:02 +00:00
lpc18xx_dac.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
ltc1660.c iio: dac: add support for ltc1660 2018-08-25 09:24:07 +01:00
ltc2632.c treewide: convert ISO_8859-1 text comments to utf-8 2018-08-23 18:48:43 -07:00
m62332.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00
Makefile iio:dac:ti-dac7612: Add driver for Texas Instruments DAC7612 2019-02-09 18:46:02 +00:00
max517.c iio: dac: max517: avoid using CONFIG_PM_SLEEP 2018-08-19 17:40:24 +01:00
max5821.c iio: dac: max5821: avoid using CONFIG_PM_SLEEP 2018-08-19 17:41:31 +01:00
mcp4725.c iio: dac: mcp4725: add missing powerdown bits in store eeprom 2019-03-16 15:15:31 +00:00
mcp4922.c iio: dac: mcp4922: fix error handling in mcp4922_write_raw 2018-08-25 09:47:36 +01:00
stm32-dac-core.c iio: stm32: Adopt SPDX identifier 2018-01-08 16:03:41 +01:00
stm32-dac-core.h iio: stm32: Adopt SPDX identifier 2018-01-08 16:03:41 +01:00
stm32-dac.c iio: stm32: Adopt SPDX identifier 2018-01-08 16:03:41 +01:00
ti-dac082s085.c iio: dac: ti-dac082s085: Read chip spec from device table 2017-10-21 20:36:45 +01:00
ti-dac5571.c iio: dac: ti-dac5571: provide of_match_table to driver 2018-08-25 09:58:52 +01:00
ti-dac7311.c iio:dac:ti-dac7311 Add driver for Texas Instrument DAC7311 2018-11-11 15:29:44 +00:00
ti-dac7612.c iio:dac:ti-dac7612: Add driver for Texas Instruments DAC7612 2019-02-09 18:46:02 +00:00
vf610_dac.c iio:dac: drop assignment of iio_info.driver_module 2017-08-22 21:26:54 +01:00