[PATCH v1 0/4] iio: adc: meson-saradc: add support for Meson S4

[Nick Xie]

This series adds support for the SARADC IP block found in the Amlogic
Meson S4 (S905Y4) SoC and enables it for the Khadas VIM1S board to
support the onboard ADC 'Function' key.

Following discussions in a previous board-enablement thread [1], a
dedicated compatible string ("amlogic,meson-s4-saradc") is introduced.
While the hardware currently operates perfectly using the G12A parameter
set, defining an S4-specific string ensures forward compatibility should
any S4-specific quirks or BL30 integration differences be discovered in
the future.

[1] https://lore.kernel.org/linux-amlogic/20260123022258.136448-1-nick@khadas.com/

Nick Xie (4):
  dt-bindings: iio: adc: amlogic,meson-saradc: add S4 compatible
  iio: adc: meson-saradc: add support for Meson S4
  arm64: dts: amlogic: meson-s4: add internal SARADC controller
  arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: add Function key
    support

 .../iio/adc/amlogic,meson-saradc.yaml         |  1 +
 .../amlogic/meson-s4-s905y4-khadas-vim1s.dts  | 19 +++++++++++++++++++
 arch/arm64/boot/dts/amlogic/meson-s4.dtsi     | 14 ++++++++++++++
 drivers/iio/adc/meson_saradc.c                |  8 ++++++++
 4 files changed, 42 insertions(+)

-- 
2.34.1