[PATCH v3 0/2] arm64: dts: qcom: glymur-crd: Add touchscreen node for ft3d81

[Pradyot Kumar Nayak]

The touchscreen module on Glymur/Mahua CRDs is a ft3d81 chip which, while
hardware-compatible with the ft8112 (same I2C-HID protocol, same
power-on/reset sequencing), requires the reset-gpios line to be
explicitly wired up in the DT. Without it the reset line remains
permanently asserted after a suspend/resume cycle and all subsequent
I2C transactions fail with -ENXIO.

V2 incorrectly used the generic hid-over-i2c binding. V3
takes a cleaner approach: extend the chip-specific focaltech,ft8112
binding to cover the ft3d81 (they share the same driver) and switch
the glymur-crd node to that binding. This removes the dependency on
the hid-over-i2c properties (hid-descr-addr) and aligns the supply
property names (vcc33-supply / vccio-supply) with the binding schema.

v1: https://lore.kernel.org/linux-arm-msm/20260522-arm64-dts-glymur-crd-add-reset-gpio-to-touchscreen-v1-1-c7653924acdc@xxxxxxxxxxxxxxxx/
Changes in v1:
  - Initial submission: add reset-gpios to touchscreen node in glymur-crd.dtsi

v2: https://lore.kernel.org/linux-arm-msm/20260523-arm64-dts-glymur-crd-add-reset-gpio-to-touchscreen-v2-0-5c333051e5bb@xxxxxxxxxxxxxxxx/
Changes in v2:
  - Add dt-bindings patch to document reset-gpios in hid-over-i2c schema
    (flagged by dtbs_check on v1)
  - No change to the DTS patch itself

Changes in v3:
  - Drop prerequisite-message-id; series is now self-contained
  - Patch 1 (new): add focaltech,ft3d81 to the focaltech,ft8112
    binding compatible enum
  - Patch 2: Added focaltech,ft3d81 Dt suuport which is hardware-compatible with the ft8112

Signed-off-by: Pradyot Kumar Nayak <pradyot.nayak@xxxxxxxxxxxxxxxx>
---
Pradyot Kumar Nayak (2):
      dt-bindings: input: focaltech,ft8112: Add focaltech,ft3d81 compatible
      arm64: dts: qcom: glymur-crd: Add FocalTech ft3d81 touchscreen support

 Documentation/devicetree/bindings/input/focaltech,ft8112.yaml | 9 +++++++--
 arch/arm64/boot/dts/qcom/glymur-crd.dts                       | 9 +++++----
 2 files changed, 12 insertions(+), 6 deletions(-)
---
base-commit: 08484c504b55a98bd100527fbe10a3caf55ff3ff
change-id: 20260523-arm64-dts-glymur-crd-add-reset-gpio-to-touchscreen

Best regards,
-- 
Pradyot Kumar Nayak <pradyot.nayak@xxxxxxxxxxxxxxxx>