Re: [PATCH v2 0/3] riscv: rtc: sophgo: add rtc support for CV1800

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On Sun, Dec 17, 2023 at 07:09:49PM +0800, Jingbao Qiu wrote:
> This series adds rtc support for Sophgo CV1800.
> 
> Changes since v1
> - fix duplicate names in subject
> - using RTC replace RTC controller
> - improve the properties of dt-bindings
> - using `unevaluatedProperties` replace `additionalProperties`
> - dt-bindings passed the test
> - using `devm_platform_ioremap_resource()` replace
>   `platform_get_resource()` and `devm_ioremap_resource()`
> - fix random order of the code
> - fix wrong wrapping of the `devm_request_irq()` and map the flag with dts
> - using devm_clk_get_enabled replace `devm_clk_get()` and
>   `clk_prepare_enable()`
> - fix return style
> - add rtc clock calibration function
> - use spinlock when write register on read/set time
> 
> Jingbao Qiu (3):
>   dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC
>   rtc: sophgo: add rtc support for Sophgo CV1800 SoC
>   riscv: dts: sophgo: add rtc dt node for CV1800

AFAICT, the rtc subsystem supports not only RTC function but also
power/reboot controller, so modeling the rtc subsystem as RTC only doesn't
match the HW. I expect a mfd here.

> 
>  .../bindings/rtc/sophgo,cv1800-rtc.yaml       |  47 ++
>  arch/riscv/boot/dts/sophgo/cv1800b.dtsi       |   7 +
>  drivers/rtc/Kconfig                           |   6 +
>  drivers/rtc/Makefile                          |   1 +
>  drivers/rtc/rtc-cv1800.c                      | 400 ++++++++++++++++++
>  5 files changed, 461 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
>  create mode 100644 drivers/rtc/rtc-cv1800.c
> 
> -- 
> 2.25.1
> 




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