Initially support for nt36xxx series spi device. Below list all supported varients: - NT36675 - NT36672A - NT36772(?) - NT36525 - NT36676F I had tested it with Redmi note 9 pro, aka NT36675 chip. This series is based on my repo below: https://github.com/99degree/linux/tree/nt36xxx There is a boot-and-functional tree for miatoll device: https://github.com/99degree/linux/tree/working-20241015 And the older dev history: https://github.com/99degree/linux/tree/nt36xxx_old https://github.com/99degree/linux/tree/working-20230528/drivers/input/touchscreen This driver is based on AngeloGioacchino Del Regno for i2c based drive https://patchwork.kernel.org/project/linux-input/cover/20201028221302.66583-1-kholk11@xxxxxxxxx/#24831734 _AND_ Neil Armstrong for the spi device codes https://patchwork.kernel.org/project/linux-input/patch/20231213-topic-goodix-berlin-upstream-initial-v13-2-5d7a26a5eaa2@xxxxxxxxxx/ Download fw function is adapted from original vendor driver https://github.com/LineageOS/android_kernel_xiaomi_sm6250/tree/lineage-21/drivers/input/touchscreen/nt36xxx_spi/ Panel follower functionality is finally added. Since the driver is split into core+spi so i2c function is relatively easily to add. Signed-off-by: George Chan <gchan9527@xxxxxxxxx> --- George Chan (3): dt-bindings: touchscreen: Add binding for Novatek NT36xxx series driver [RFC/RFT]Input: Add Novatek NT36xxx touchscreen driver dts: sm7125-xiaomi-joyeuse: Sample device tree for reference .../bindings/input/touchscreen/nt36xxx.yaml | 70 + arch/arm64/boot/dts/qcom/Makefile | 1 + .../boot/dts/qcom/sm7125-xiaomi-joyeuse-touch.dts | 183 +++ drivers/input/touchscreen/Kconfig | 13 + drivers/input/touchscreen/Makefile | 2 + drivers/input/touchscreen/nt36xxx.h | 142 ++ drivers/input/touchscreen/nt36xxx_core.c | 1422 ++++++++++++++++++++ drivers/input/touchscreen/nt36xxx_spi.c | 256 ++++ 8 files changed, 2089 insertions(+) --- base-commit: b852e1e7a0389ed6168ef1d38eb0bad71a6b11e8 change-id: 20241015-nt36xxx-07e458ba2877 Best regards, -- George Chan <gchan9527@xxxxxxxxx>
