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

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Message-ID: <CAJRtX8T=bD4S1yMbexuwiMOK7rtwOg5TmVQJsRW6b8Lv9LnPKw@mail.gmail.com>
Date: Mon, 18 Dec 2023 15:11:46 +0800
From: Jingbao Qiu <qiujingbao.dlmu@...il.com>
To: Jisheng Zhang <jszhang@...nel.org>
Cc: a.zummo@...ertech.it, alexandre.belloni@...tlin.com, robh+dt@...nel.org, 
	krzysztof.kozlowski+dt@...aro.org, conor@...nel.org, conor+dt@...nel.org, 
	chao.wei@...hgo.com, unicorn_wang@...look.com, paul.walmsley@...ive.com, 
	palmer@...belt.com, aou@...s.berkeley.edu, linux-rtc@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, dlan@...too.org
Subject: Re: [PATCH v2 0/3] riscv: rtc: sophgo: add rtc support for CV1800

On Mon, Dec 18, 2023 at 1:53 PM Jisheng Zhang <jszhang@...nel.org> wrote:
>
> 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.
>

Thanks,I will improve it in the next version.

Best regards,
Jingbao Qiu


> >
> >  .../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
> >