From: Wei Xu <xuwei5@hisilicon.com>
To: Andre Przywara <andre.przywara@arm.com>, <soc@kernel.org>
Cc: Rob Herring <robh@kernel.org>, Chanho Min <chanho.min@lge.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v3 4/6] arm64: dts: hisilicon: Fix SP805 clocks
Date: Wed, 16 Sep 2020 09:45:20 +0800 [thread overview]
Message-ID: <5F616E30.3090705@hisilicon.com> (raw)
In-Reply-To: <20200907121831.242281-5-andre.przywara@arm.com>
Hi Andre,
On 2020/9/7 20:18, Andre Przywara wrote:
> The SP805 DT binding requires two clocks to be specified, but
> Hisilicon platform DTs currently only specify one clock.
>
> In practice, Linux would pick a clock named "apb_pclk" for the bus
> clock, and the Linux and U-Boot SP805 driver would use the first clock
> to derive the actual watchdog counter frequency.
>
> Since currently both are the very same clock, we can just double the
> clock reference, and add the correct clock-names, to match the binding.
>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Thanks!
Applied to the hisilicon arm64 dt tree.
Best Regards,
Wei
> ---
> arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 10 ++++++----
> arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 5 +++--
> 2 files changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> index d25aac5e0bf8..994140fbc916 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> @@ -1089,16 +1089,18 @@
> compatible = "arm,sp805-wdt", "arm,primecell";
> reg = <0x0 0xe8a06000 0x0 0x1000>;
> interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&crg_ctrl HI3660_OSC32K>;
> - clock-names = "apb_pclk";
> + clocks = <&crg_ctrl HI3660_OSC32K>,
> + <&crg_ctrl HI3660_OSC32K>;
> + clock-names = "wdog_clk", "apb_pclk";
> };
>
> watchdog1: watchdog@e8a07000 {
> compatible = "arm,sp805-wdt", "arm,primecell";
> reg = <0x0 0xe8a07000 0x0 0x1000>;
> interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&crg_ctrl HI3660_OSC32K>;
> - clock-names = "apb_pclk";
> + clocks = <&crg_ctrl HI3660_OSC32K>,
> + <&crg_ctrl HI3660_OSC32K>;
> + clock-names = "wdog_clk", "apb_pclk";
> };
>
> tsensor: tsensor@fff30000 {
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> index 3d189d9f0d24..6578f8191d71 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> @@ -843,8 +843,9 @@
> compatible = "arm,sp805-wdt", "arm,primecell";
> reg = <0x0 0xf8005000 0x0 0x1000>;
> interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&ao_ctrl HI6220_WDT0_PCLK>;
> - clock-names = "apb_pclk";
> + clocks = <&ao_ctrl HI6220_WDT0_PCLK>,
> + <&ao_ctrl HI6220_WDT0_PCLK>;
> + clock-names = "wdog_clk", "apb_pclk";
> };
>
> tsensor: tsensor@0,f7030700 {
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-09-16 1:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-07 12:18 [PATCH v3 0/6] ARM/arm64: dts: Fix SP804/SP805 users Andre Przywara
2020-09-07 12:18 ` [PATCH v3 1/6] ARM: dts: hisilicon: Fix SP804 users Andre Przywara
2020-09-16 1:44 ` Wei Xu
2020-09-07 12:18 ` [PATCH v3 2/6] ARM: dts: nspire: " Andre Przywara
2020-09-07 12:18 ` [PATCH v3 3/6] arm64: dts: lg: " Andre Przywara
2020-09-07 12:18 ` [PATCH v3 4/6] arm64: dts: hisilicon: Fix SP805 clocks Andre Przywara
2020-09-16 1:45 ` Wei Xu [this message]
2020-09-07 12:18 ` [PATCH v3 5/6] arm64: dts: lg: " Andre Przywara
2020-09-07 12:18 ` [PATCH v3 6/6] ARM: dts: hisilicon: " Andre Przywara
2020-09-16 1:42 ` Wei Xu
2020-10-03 19:57 ` [PATCH v3 0/6] ARM/arm64: dts: Fix SP804/SP805 users Olof Johansson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5F616E30.3090705@hisilicon.com \
--to=xuwei5@hisilicon.com \
--cc=andre.przywara@arm.com \
--cc=chanho.min@lge.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh@kernel.org \
--cc=soc@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).