Add support for the HW found in most Amlogic SoC dedicated to measure system clocks. This drivers aims to replace the one found in drivers/soc/amlogic/meson-clk-measure.c with following improvements: * Access to the measurements through the IIO API: Easier re-use of the results in userspace and other drivers * Controllable scale with raw measurements * Higher precision with processed measurements Jerome Brunet (2): dt-bindings: iio: frequency: add clock measure support iio: frequency: add amlogic clock measure support .../iio/frequency/amlogic,clk-msr-io.yaml | 50 ++ drivers/iio/frequency/Kconfig | 15 + drivers/iio/frequency/Makefile | 1 + drivers/iio/frequency/amlogic-clk-msr-io.c | 802 ++++++++++++++++++ 4 files changed, 868 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/frequency/amlogic,clk-msr-io.yaml create mode 100644 drivers/iio/frequency/amlogic-clk-msr-io.c -- 2.43.0
