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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZX/bUfSS1+32skCM@xhacker>
Date: Mon, 18 Dec 2023 13:40:33 +0800
From: Jisheng Zhang <jszhang@...nel.org>
To: Jingbao Qiu <qiujingbao.dlmu@...il.com>
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 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
>