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Message-Id: <20250401120020.976343-1-amadeus@jmu.edu.cn>
Date: Tue, 1 Apr 2025 20:00:18 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: Heiko Stuebner <heiko@...ech.de>
Cc: Yao Zi <ziyao@...root.org>,
Rob Herring <robh@...nel.org>,
Chukun Pan <amadeus@....edu.cn>,
Jonas Karlman <jonas@...boo.se>,
Conor Dooley <conor+dt@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org,
linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH v3 0/2] arm64: dts: rockchip: Add pwm nodes for RK3528
Add pwm nodes for RK3528. Most rk3528 boards use pwm-regulator to
supply to CPU, add node to enable them. The PWM core on RK3528 is
the same as RK3328, but the driver doesn't support interrupts yet.
Note that pwm regulator needs to be initialized in U-Boot:
```
&vdd_arm {
regulator-init-microvolt = <953000>;
};
&vdd_logic {
regulator-init-microvolt = <900000>;
};
```
Changes in v3:
Adjust regulators order of E20C dts nodes
Use PWM_POLARITY_INVERTED in pwm-regulator
Changes in v2:
Remove merged bindings patch
Remove pwm pinctrl in rk3528.dtsi
Enable pwm regulator for Radxa E20C
Chukun Pan (2):
arm64: dts: rockchip: Add pwm nodes for RK3528
arm64: dts: rockchip: Enable regulators for Radxa E20C
.../boot/dts/rockchip/rk3528-radxa-e20c.dts | 73 +++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3528.dtsi | 80 +++++++++++++++++++
2 files changed, 153 insertions(+)
--
2.25.1
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