[PATCH 0/4] media: rc: sunxi-cir: support the A523/H728/T527 IR receiver

[Justin Suess]

This series adds support for the CIR receiver found in the Allwinner
A523/T527/H728 family (sun55i). The only board in this family that I
am in possession of that has the IR receiver is the x96qpro+, so it is
just enabled for that board. The Avaota A1 may have it, but I don't have
hardware to test, so it's just enabled on the x96qpro+ for now, but
left in the a523 DTSI for future use.

The sun55i family carries a newer revision of the sunxi CIR IP that is
not backwards-compatible with the prior hardware. So a new pulse
capture mode field in the control register resets to 0 by default,
which captures nothing, and the sample clock divider became selectable
instead of the fixed module clock / 64.

Solve this by adding the two new registers, enabling the setting of the
pulse capture mode register and the selection of the clock speed.

The new compatible is therefore added standalone, without the
usual sun6i-a31-ir fallback (it won't work).

Tested on an X96Q Pro+ (H728) TV box with the Google TV remote that
came in the box (using NEC keymap). Was able to press buttons and
get readings from lirc / ir-keytable.

The series is based on tag v7.2-rc1 on mainline.

Justin Suess (4):
  media: dt-bindings: allwinner,sun4i-a10-ir: add A523 compatible
  media: rc: sunxi-cir: add support for the A523
  arm64: dts: allwinner: a523: add IR receiver node
  arm64: dts: allwinner: a523: enable IR receiver on the X96Q Pro+

 .../media/allwinner,sun4i-a10-ir.yaml         |  1 +
 .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 19 +++++
 .../dts/allwinner/sun55i-h728-x96qpro+.dts    |  4 +
 drivers/media/rc/sunxi-cir.c                  | 76 +++++++++++++++----
 4 files changed, 87 insertions(+), 13 deletions(-)

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2.54.0