linux-toradex.git/include/linux/iio/dac, branch v4.11-rc3 Linux kernel for Apalis and Colibri modules 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: 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>
iio: max517: Add support for MAX520 and MAX521 chips. 2015-03-28T10:57:34+00:00 Antonio Fiol antonio@fiol.es 2015-03-28T08:07:14+00:00 a878a1a61a1f0e4b23602ddd87b1408a7a748d0e MAX520 and MAX521 are protocol-compatible with the already supported chips, just have more channels. Signed-off-by: Antonio Fiol <antonio@fiol.es> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
MAX520 and MAX521 are protocol-compatible with the already supported
chips, just have more channels.

Signed-off-by: Antonio Fiol <antonio@fiol.es>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: add mcp4725 I2C DAC driver 2012-06-12T21:50:51+00:00 Peter Meerwald pmeerw@pmeerw.net 2012-06-08T16:06:45+00:00 cf35ad61aca2c0c8983fa1e140c901f6588aba7e v5: * fix warnings (Jonathan Cameron) v4: * remove unused indio_dev pointer in mcp4725_data (Jonathan Cameron) * use u16 instead of unsigned short in mcp4725_data (Jonathan Cameron) * #include mcp4725.h from linux/iio/dac/ v3: * move from staging to drivers/iio * switch to chan_spec * dev_get_drvdata() -> dev_to_iio_dev() * annotate probe() and remove() with __devinit and __devexit v2 (based on comments from Jonathan Cameron and Lars-Peter Clausen): * did NOT switch to chan_spec yet * rebase to staging-next tree, update iio header locations * dropped dac.h #include, not needed * strict_strtol() -> kstrtol() * call iio_device_unregister() in remove() * everything in one patch Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
v5:
* fix warnings (Jonathan Cameron)

v4:
* remove unused indio_dev pointer in mcp4725_data (Jonathan Cameron)
* use u16 instead of unsigned short in mcp4725_data (Jonathan Cameron)
* #include mcp4725.h from linux/iio/dac/

v3:
* move from staging to drivers/iio
* switch to chan_spec
* dev_get_drvdata() -> dev_to_iio_dev()
* annotate probe() and remove() with __devinit and __devexit

v2 (based on comments from Jonathan Cameron and Lars-Peter Clausen):
* did NOT switch to chan_spec yet
* rebase to staging-next tree, update iio header locations
* dropped dac.h #include, not needed
* strict_strtol() -> kstrtol()
* call iio_device_unregister() in remove()
* everything in one patch

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging:iio: Move DAC drivers out of staging 2012-06-05T05:02:25+00:00 Lars-Peter Clausen lars@metafoo.de 2012-06-04T09:36:28+00:00 dbdc025bb239ce62c9b4d28c459a98f22ce9ec0a The IIO DAC drivers are in a reasonably good shape. They all make use of channel spec and non of them provides non-documented sysfs attributes. Code style should be OK as well, both checkpatch and coccicheck only report trivial issues. So lets move the whole folder out of staging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The IIO DAC drivers are in a reasonably good shape. They all make use of channel
spec and non of them provides non-documented sysfs attributes. Code style should
be OK as well, both checkpatch and coccicheck only report trivial issues.

So lets move the whole folder out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>