The backgroud of this upstream is: I used to enable i.MX GPT input capture function for i.MX8MM. And I found patches following from Steve: https://lore.kernel.org/linux-arm-kernel/20191016010544.14561-2-slongerbeam@xxxxxxxxx/ https://lore.kernel.org/linux-arm-kernel/20191016010544.14561-3-slongerbeam@xxxxxxxxx/ After applied the patches and do some modification, GPT input capture function was enabled in i.MX8MM. When checked in latest BSP, seems the two patches are not included. I am not sure about the upstream status initiated by Steve. So as a latercomer, I am doing this upsteam again. Kane Jiang (2): Change to cyclecounter for GPT input capture. Add support for i.MX8MM. Add i.MX8MM GPT input capture example. Steve Longerbeam (1): This patch adds support for the input capture function in the i.MX GPT. Output compare and input capture functions are mixed in the same register block, so we need to modify the irq ack/enable/ disable primitives to not stomp on the other function. .../devicetree/bindings/timer/fsl,imxgpt.yaml | 48 ++ drivers/clocksource/timer-imx-gpt.c | 482 ++++++++++++++++-- include/linux/mxc_icap.h | 16 + 3 files changed, 496 insertions(+), 50 deletions(-) create mode 100644 include/linux/mxc_icap.h -- 2.25.1
