Introduces a more generalized ABI documentation for DAC. Instead of having separate ABI files for each DAC, we now have a single ABI file that covers the common sysfs interface for all DAC. Co-developed-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Signed-off-by: Kim Seer Paller <kimseer.paller@xxxxxxxxxx> --- Documentation/ABI/testing/sysfs-bus-iio-dac | 61 +++++++++++++++++++ .../ABI/testing/sysfs-bus-iio-dac-ltc2688 | 31 ---------- MAINTAINERS | 8 +++ 3 files changed, 69 insertions(+), 31 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dac diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac b/Documentation/ABI/testing/sysfs-bus-iio-dac new file mode 100644 index 000000000000..53d5213520c6 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-dac @@ -0,0 +1,61 @@ +What: /sys/bus/iio/devices/iio:deviceX/out_currentY_toggle_en +KernelVersion: 5.18 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Toggle enable. Write 1 to enable toggle or 0 to disable it. This is + useful when one wants to change the DAC output codes. The way it should + be done is: + + - disable toggle operation; + - change out_currentY_raw0 and out_currentY_raw1; + - enable toggle operation. + +What: /sys/bus/iio/devices/iio:deviceX/out_currentY_raw0 +What: /sys/bus/iio/devices/iio:deviceX/out_currentY_raw1 +KernelVersion: 5.18 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + It has the same meaning as out_currentY_raw. This attribute is + specific to toggle enabled channels and refers to the DAC output + code in INPUT_A (_raw0) and INPUT_B (_raw1). The same scale and offset + as in out_currentY_raw applies. + +What: /sys/bus/iio/devices/iio:deviceX/out_currentY_symbol +KernelVersion: 5.18 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Performs a SW toggle. This attribute is specific to toggle + enabled channels and allows to toggle between out_currentY_raw0 + and out_currentY_raw1 through software. Writing 0 will select + out_currentY_raw0 while 1 selects out_currentY_raw1. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_toggle_en +KernelVersion: 5.18 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Toggle enable. Write 1 to enable toggle or 0 to disable it. This is + useful when one wants to change the DAC output codes. The way it should + be done is: + + - disable toggle operation; + - change out_voltageY_raw0 and out_voltageY_raw1; + - enable toggle operation. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw0 +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw1 +KernelVersion: 5.18 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + It has the same meaning as out_voltageY_raw. This attribute is + specific to toggle enabled channels and refers to the DAC output + code in INPUT_A (_raw0) and INPUT_B (_raw1). The same scale and offset + as in out_voltageY_raw applies. + +What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_symbol +KernelVersion: 5.18 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Performs a SW toggle. This attribute is specific to toggle + enabled channels and allows to toggle between out_voltageY_raw0 + and out_voltageY_raw1 through software. Writing 0 will select + out_voltageY_raw0 while 1 selects out_voltageY_raw1. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 index 1c35971277ba..ae95a5477382 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 +++ b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 @@ -53,34 +53,3 @@ KernelVersion: 5.18 Contact: linux-iio@xxxxxxxxxxxxxxx Description: Returns the available values for the dither phase. - -What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_toggle_en -KernelVersion: 5.18 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Toggle enable. Write 1 to enable toggle or 0 to disable it. This is - useful when one wants to change the DAC output codes. The way it should - be done is: - - - disable toggle operation; - - change out_voltageY_raw0 and out_voltageY_raw1; - - enable toggle operation. - -What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw0 -What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw1 -KernelVersion: 5.18 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - It has the same meaning as out_voltageY_raw. This attribute is - specific to toggle enabled channels and refers to the DAC output - code in INPUT_A (_raw0) and INPUT_B (_raw1). The same scale and offset - as in out_voltageY_raw applies. - -What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_symbol -KernelVersion: 5.18 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Performs a SW toggle. This attribute is specific to toggle - enabled channels and allows to toggle between out_voltageY_raw0 - and out_voltageY_raw1 through software. Writing 0 will select - out_voltageY_raw0 while 1 selects out_voltageY_raw1. diff --git a/MAINTAINERS b/MAINTAINERS index 758c202ec712..b3be54c09159 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12850,6 +12850,14 @@ S: Maintained F: Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml F: drivers/iio/dac/ltc1660.c +LTC2664 IIO DAC DRIVER +M: Michael Hennerich <michael.hennerich@xxxxxxxxxx> +M: Kim Seer Paller <kimseer.paller@xxxxxxxxxx> +L: linux-iio@xxxxxxxxxxxxxxx +S: Supported +W: https://ez.analog.com/linux-software-drivers +F: Documentation/ABI/testing/sysfs-bus-iio-dac + LTC2688 IIO DAC DRIVER M: Nuno Sá <nuno.sa@xxxxxxxxxx> L: linux-iio@xxxxxxxxxxxxxxx -- 2.34.1
