Re: [PATCH v7 0/3] clocksource/drivers/atcpit100: Add andestech atcpit100 timer

Greentime Hu
2018-02-21T07:21:04Z

2018-02-13 17:13 GMT+08:00 Greentime Hu <green.hu@gmail.com>:
> Hi, all:
>
> ATCPIT100 is often used on the Andes architecture,
> This timer provide 4 PIT channels. Each PIT channel is a
> multi-function timer, can be configured as 32,16,8 bit timers
> or PWM as well.
>
> For system timer it will set channel 1 32-bit timer0 as clock
> source and count downwards until underflow and restart again.
>
> It also set channel 0 32-bit timer0 as clock event and count
> downwards until condition match. It will generate an interrupt
> for handling periodically.
>
> Changes in v7:
> - Fix atcpit100_clkevt_next_event(), before set reload register,
> clock source timer shall disable. And re-enable it after the setting.
> Without this modification, the test case 'clock_nanosleep02' of ltp_20170929
> will fail.
>
> Changes in v6:
> - To select TIMER_OF in drivers/clocksource/Kconfig instead of arch/nds32/Kconfig
> - Refine Kconfig
> - Update license format to SPDX-License-Identifier
>
>
> Rick Chen (3):
> clocksource/drivers/atcpit100: Add andestech atcpit100 timer
> clocksource/drivers/atcpit100: VDSO support
> dt-bindings: timer: Add andestech atcpit100 timer binding doc
>
> .../bindings/timer/andestech,atcpit100-timer.txt | 33 +++
> drivers/clocksource/Kconfig | 9 +
> drivers/clocksource/Makefile | 1 +
> drivers/clocksource/timer-atcpit100.c | 266 +++++++++++++++++++++
> 4 files changed, 309 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt
> create mode 100644 drivers/clocksource/timer-atcpit100.c
>
Hi, Daniel:

Please merge this driver for 4.17 to go along with the nds32
architeture support.
Thank you.