From: Yixun Lan <dlan@kernel.org>
To: Andre Heider <a.heider@gmail.com>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@gentoo.org>,
devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
spacemit@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/6] riscv: dts: spacemit: k1-musepi-pro: add PMIC and power infrastructure
Date: Tue, 12 May 2026 22:53:54 +0000 [thread overview]
Message-ID: <20260512225354-GKK3624147@kernel.org> (raw)
In-Reply-To: <a41f87cc-55e4-4a48-bbee-d863e5a4b00a@gmail.com>
Hi Andre,
On 14:20 Tue 12 May , Andre Heider wrote:
> On 12.05.26 1:39 PM, Yixun Lan wrote:
> > Hi Andre,
> >
> > On 13:11 Mon 11 May , Andre Heider wrote:
> >> Enable i2c8 and add the connected SpacemiT P1 PMIC with its related regulators
> >> for the board's power infrastructure and voltage regulation support.
> >>
> >> Signed-off-by: Andre Heider <a.heider@gmail.com>
> >> ---
> >> .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 144 ++++++++++++++++++
> >> 1 file changed, 144 insertions(+)
> >>
> >> diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> >> index 29e333b670cf0..88c35ad1ef2ae 100644
> >> --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> >> +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> >> @@ -17,6 +17,7 @@ / {
> >> aliases {
> >> ethernet0 = ð0;
> >> serial0 = &uart0;
> >> + i2c8 = &i2c8;
> >> };
> >>
> >> chosen {
> >> @@ -33,6 +34,25 @@ led1 {
> >> default-state = "on";
> >> };
> >> };
> >> +
> > ..
> >> + reg_usb_vbus: regulator-usb-vbus {
> >> + compatible = "regulator-fixed";
> >> + regulator-name = "USBVBUS";
> >> + regulator-min-microvolt = <12000000>;
> >> + regulator-max-microvolt = <12000000>;
> >> + regulator-boot-on;
> >> + regulator-always-on;
> >> + };
> > I think you can further drop above regulator, which merely serve as vin-supply
> > and not used by devices, plus it's a non-controllable fixed regulator
>
> It is, but as mentioned on the cover letter I left this one as it's consistent with the other k1 boards.
> I don't care either way, so I'll just drop it.
>
Please drop
It's a historical reason that we instroduced the unnecessary regulator
before Krzysztof's comment, in other words, we should also fix that too..
--
Yixun Lan (dlan)
next prev parent reply other threads:[~2026-05-12 22:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20260511111116.1109643-1-a.heider@gmail.com>
2026-05-11 11:11 ` [PATCH v2 1/6] riscv: dts: spacemit: k1-musepi-pro: add PMIC and power infrastructure Andre Heider
2026-05-12 11:39 ` Yixun Lan
2026-05-12 12:20 ` Andre Heider
2026-05-12 22:53 ` Yixun Lan [this message]
2026-05-11 11:11 ` [PATCH v2 2/6] riscv: dts: spacemit: k1-musepi-pro: add 24c04 eeprom Andre Heider
2026-05-11 11:11 ` [PATCH v2 3/6] riscv: dts: spacemit: k1-musepi-pro: enable QSPI and add SPI NOR Andre Heider
2026-05-12 11:44 ` Yixun Lan
2026-05-11 11:11 ` [PATCH v2 4/6] riscv: dts: spacemit: k1-musepi-pro: enable USB 3 ports Andre Heider
2026-05-11 11:11 ` [PATCH v2 5/6] riscv: dts: spacemit: k1-musepi-pro: enable PCIe ports Andre Heider
2026-05-12 11:34 ` Yixun Lan
2026-05-11 11:11 ` [PATCH v2 6/6] riscv: dts: spacemit: k1-musepi-pro: set default console baud rate Andre Heider
2026-05-12 11:35 ` Yixun Lan
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