linux.git/drivers/iio/dac, branch v4.11.9 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git iio: dac: ad7303: fix channel description 2017-05-25T13:46:16+00:00 Pavel Roskin plroskin@gmail.com 2017-04-13T21:54:23+00:00 327f5da04e62124e5a79d050f084f1cec7af85e2 commit ce420fd4251809b4c3119b3b20c8b13bd8eba150 upstream. realbits, storagebits and shift should be numbers, not ASCII characters. Signed-off-by: Pavel Roskin <plroskin@gmail.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit ce420fd4251809b4c3119b3b20c8b13bd8eba150 upstream.

realbits, storagebits and shift should be numbers, not ASCII characters.

Signed-off-by: Pavel Roskin <plroskin@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
iio: dac: ad5593r: Add ACPI support 2016-12-30T17:20:14+00:00 Michael Hennerich michael.hennerich@analog.com 2016-12-19T12:10:39+00:00 2cc5b0df86dc2e8b3fa0309d145e6ab5f529eff7 This patch adds the ACPI/PNP ID. The AD5592/3 driver core is already designed around the unified device property API. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
This patch adds the ACPI/PNP ID. The AD5592/3 driver core is already
designed around the unified device property API.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dac: ad5592r: Add ACPI support 2016-12-30T17:19:36+00:00 Michael Hennerich michael.hennerich@analog.com 2016-12-19T12:10:38+00:00 b0570bcee39a313aea693612d061d6417ab06a2e This patch adds the ACPI/PNP ID. The AD5592/3 driver core is already designed around the unified device property API. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
This patch adds the ACPI/PNP ID. The AD5592/3 driver core is already
designed around the unified device property API.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dpot-dac: DAC driver based on a digital potentiometer 2016-11-13T13:07:15+00:00 Peter Rosin peda@axentia.se 2016-11-08T11:58:56+00:00 7fde1484af21f9668e9575bd8a119ebc4fe6fe42 It is assumed that the dpot is used as a voltage divider between the current dpot wiper setting and the maximum resistance of the dpot. The divided voltage is provided by a vref regulator. .------. .-----------. | | | vref |--' .---. | regulator |--. | | '-----------' | | d | | | p | | | o | wiper | | t |<---------+ | | | | '---' dac output voltage | | '------+------------+ Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
It is assumed that the dpot is used as a voltage divider between the
current dpot wiper setting and the maximum resistance of the dpot. The
divided voltage is provided by a vref regulator.

                  .------.
   .-----------.  |      |
   | vref      |--'    .---.
   | regulator |--.    |   |
   '-----------'  |    | d |
                  |    | p |
                  |    | o |  wiper
                  |    | t |<---------+
                  |    |   |
                  |    '---'       dac output voltage
                  |      |
                  '------+------------+

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dac: mcp4725: fix odd_ptr_err.cocci warnings 2016-10-23T18:34:27+00:00 Julia Lawall julia.lawall@lip6.fr 2016-10-22T20:41:32+00:00 30df2d1879ff65af7b269ee94e9c7fc276b54105 PTR_ERR should access the value just tested by IS_ERR Generated by: scripts/coccinelle/tests/odd_ptr_err.cocci CC: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
PTR_ERR should access the value just tested by IS_ERR

Generated by: scripts/coccinelle/tests/odd_ptr_err.cocci

CC: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dac: mcp4725: add devicetree support 2016-10-23T18:34:24+00:00 Tomas Novotny tomas@novotny.cz 2016-10-18T17:43:09+00:00 88e39a88b7ff4ec0deaf596bb653a6ca2c0c1f30 Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dac: mcp4725: support voltage reference selection 2016-10-23T18:34:23+00:00 Tomas Novotny tomas@novotny.cz 2016-10-18T17:43:08+00:00 29157c6d601db8cb9f3bea93fc933b73db3bf869 MCP47x6 chip supports selection of a voltage reference (VDD, VREF buffered or unbuffered). MCP4725 doesn't have this feature thus the eventual setting is ignored and user is warned. The setting is stored only in the volatile memory of the chip. You need to manually store it to the EEPROM of the chip via 'store_eeprom' sysfs entry. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
MCP47x6 chip supports selection of a voltage reference (VDD, VREF buffered
or unbuffered). MCP4725 doesn't have this feature thus the eventual setting
is ignored and user is warned.

The setting is stored only in the volatile memory of the chip. You need to
manually store it to the EEPROM of the chip via 'store_eeprom' sysfs entry.

Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dac: mcp4725: fix incorrect comment 2016-10-23T18:34:20+00:00 Tomas Novotny tomas@novotny.cz 2016-10-18T17:43:06+00:00 6a31c225f5d5182cd711019f99a4e87c92884e2b Number 2 is referencing to the settings with the largest available resistor. No functional change. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Number 2 is referencing to the settings with the largest available
resistor.

No functional change.

Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dac: mcp4725: use regulator framework 2016-10-23T18:33:51+00:00 Tomas Novotny tomas@novotny.cz 2016-10-11T13:57:40+00:00 b440f1d90ec54fd2586537ea46e958343ad4b151 Use a standard framework to get the reference voltage. It is done that way in the iio subsystem and it will simplify extending of the driver. Structure mcp4725_platform_data is left undeleted because it used in the next patch. This change breaks the current users of the driver, but there is no mainline user of struct mcp4725_platform_data. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Use a standard framework to get the reference voltage. It is done that way
in the iio subsystem and it will simplify extending of the driver.

Structure mcp4725_platform_data is left undeleted because it used in the
next patch.

This change breaks the current users of the driver, but there is no
mainline user of struct mcp4725_platform_data.

Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
drivers: iio: dac: Fix sparse warning 2016-09-27T19:25:32+00:00 Sandhya Bankar bankarsandhya512@gmail.com 2016-09-23T19:20:22+00:00 38e442fc8ba11b32e57f4837e1aa695f3751b99c Fixing below warnings: drivers/iio/dac/ad5592r.c:58:41: warning: incorrect type in argument 2 (different base types) drivers/iio/dac/ad5592r.c:58:41: expected unsigned short [usertype] *buf drivers/iio/dac/ad5592r.c:58:41: got restricted __be16 *<noident> drivers/iio/dac/ad5592r.c:62:41: warning: incorrect type in argument 2 (different base types) drivers/iio/dac/ad5592r.c:62:41: expected unsigned short [usertype] *buf drivers/iio/dac/ad5592r.c:62:41: got restricted __be16 *<noident> drivers/iio/dac/ad5592r.c:92:41: warning: incorrect type in argument 2 (different base types) drivers/iio/dac/ad5592r.c:92:41: expected unsigned short [usertype] *buf drivers/iio/dac/ad5592r.c:92:41: got restricted __be16 *<noident> drivers/iio/dac/ad5592r.c:110:41: warning: incorrect type in argument 2 (different base types) drivers/iio/dac/ad5592r.c:110:41: expected unsigned short [usertype] *buf drivers/iio/dac/ad5592r.c:110:41: got restricted __be16 *<noident> Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Fixing below warnings:

drivers/iio/dac/ad5592r.c:58:41: warning: incorrect type in argument 2 (different base types)
drivers/iio/dac/ad5592r.c:58:41:    expected unsigned short [usertype] *buf
drivers/iio/dac/ad5592r.c:58:41:    got restricted __be16 *<noident>
drivers/iio/dac/ad5592r.c:62:41: warning: incorrect type in argument 2 (different base types)
drivers/iio/dac/ad5592r.c:62:41:    expected unsigned short [usertype] *buf
drivers/iio/dac/ad5592r.c:62:41:    got restricted __be16 *<noident>
drivers/iio/dac/ad5592r.c:92:41: warning: incorrect type in argument 2 (different base types)
drivers/iio/dac/ad5592r.c:92:41:    expected unsigned short [usertype] *buf
drivers/iio/dac/ad5592r.c:92:41:    got restricted __be16 *<noident>
drivers/iio/dac/ad5592r.c:110:41: warning: incorrect type in argument 2 (different base types)
drivers/iio/dac/ad5592r.c:110:41:    expected unsigned short [usertype] *buf
drivers/iio/dac/ad5592r.c:110:41:    got restricted __be16 *<noident>

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>