From: Conor Dooley <conor@kernel.org>
To: Shengyu Qu <wiagn233@outlook.com>
Cc: kernel@esmil.dk, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, paul.walmsley@sifive.com,
palmer@dabbelt.com, aou@eecs.berkeley.edu,
william.qiu@starfivetech.com, devicetree@vger.kernel.org,
linux-riscv@lists.infradead.org, stable@vger.kernel.org
Subject: Re: [PATCH v2] riscv: dts: starfive: Set EMMC vqmmc maximum voltage to 3.3V on JH7110 boards
Date: Wed, 12 Jun 2024 17:18:25 +0100 [thread overview]
Message-ID: <20240612-various-verbose-8c1a5db7d25a@spud> (raw)
In-Reply-To: <TY3P286MB261189B5D946BDE69398EE3A98C02@TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM>
[-- Attachment #1: Type: text/plain, Size: 1439 bytes --]
On Wed, Jun 12, 2024 at 06:33:31PM +0800, Shengyu Qu wrote:
> Currently, for JH7110 boards with EMMC slot, vqmmc voltage for EMMC is
> fixed to 1.8V, while the spec needs it to be 3.3V on low speed mode and
> should support switching to 1.8V when using higher speed mode. Since
> there are no other peripherals using the same voltage source of EMMC's
> vqmmc(ALDO4) on every board currently supported by mainline kernel,
I should've asked last time around, does the star64 also support 3.3
volts?
> regulator-max-microvolt of ALDO4 should be set to 3.3V.
>
> Cc: stable@vger.kernel.org
> Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
> Fixes: 7dafcfa79cc9 ("riscv: dts: starfive: enable DCDC1&ALDO4 node in axp15060")
> ---
> arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> index 37b4c294ffcc..c7a549ec7452 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> @@ -244,7 +244,7 @@ emmc_vdd: aldo4 {
> regulator-boot-on;
> regulator-always-on;
> regulator-min-microvolt = <1800000>;
> - regulator-max-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> regulator-name = "emmc_vdd";
> };
> };
> --
> 2.39.2
>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
next prev parent reply other threads:[~2024-06-12 16:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-12 10:33 [PATCH v2] riscv: dts: starfive: Set EMMC vqmmc maximum voltage to 3.3V on JH7110 boards Shengyu Qu
2024-06-12 10:36 ` Shengyu Qu
2024-06-12 16:18 ` Conor Dooley [this message]
2024-06-12 16:41 ` Shengyu Qu
2024-06-19 11:20 ` Conor Dooley
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=20240612-various-verbose-8c1a5db7d25a@spud \
--to=conor@kernel.org \
--cc=aou@eecs.berkeley.edu \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=kernel@esmil.dk \
--cc=krzk+dt@kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=palmer@dabbelt.com \
--cc=paul.walmsley@sifive.com \
--cc=robh@kernel.org \
--cc=stable@vger.kernel.org \
--cc=wiagn233@outlook.com \
--cc=william.qiu@starfivetech.com \
/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).