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From: Alex Bee <knaerzche@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>
Cc: Rob Herring <robh+dt@kernel.org>,
	Markus Reichl <m.reichl@fivetechno.de>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	Alex Bee <knaerzche@gmail.com>
Subject: [PATCH] arm64: dts: rockchip: Re-add regulator-boot-on, regulator-always-on for vdd_gpu on rk3399-roc-pc
Date: Sat, 19 Jun 2021 14:14:46 +0200	[thread overview]
Message-ID: <20210619121446.7802-1-knaerzche@gmail.com> (raw)

This might be a limitation of either the current panfrost driver
devfreq implementation or how the gpu is implemented in RK3399 SoC.
The gpu regulator must never get disabled or the registers get
(randomly?) inaccessable by the driver. (see all other RK3399 boards)

Fixes: ec7d731d81e7 ("arm64: dts: rockchip: Add node for gpu on rk3399-roc-pc")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index da3021dc0ff3..8b27ee4be755 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -494,6 +494,8 @@ vdd_gpu: regulator@41 {
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;
 		regulator-ramp-delay = <1000>;
+		regulator-always-on;
+		regulator-boot-on;
 		vin-supply = <&vcc3v3_sys>;
 
 		regulator-state-mem {
-- 
2.27.0


WARNING: multiple messages have this Message-ID (diff)
From: Alex Bee <knaerzche@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>
Cc: Rob Herring <robh+dt@kernel.org>,
	Markus Reichl <m.reichl@fivetechno.de>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	Alex Bee <knaerzche@gmail.com>
Subject: [PATCH] arm64: dts: rockchip: Re-add regulator-boot-on, regulator-always-on for vdd_gpu on rk3399-roc-pc
Date: Sat, 19 Jun 2021 14:14:46 +0200	[thread overview]
Message-ID: <20210619121446.7802-1-knaerzche@gmail.com> (raw)

This might be a limitation of either the current panfrost driver
devfreq implementation or how the gpu is implemented in RK3399 SoC.
The gpu regulator must never get disabled or the registers get
(randomly?) inaccessable by the driver. (see all other RK3399 boards)

Fixes: ec7d731d81e7 ("arm64: dts: rockchip: Add node for gpu on rk3399-roc-pc")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index da3021dc0ff3..8b27ee4be755 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -494,6 +494,8 @@ vdd_gpu: regulator@41 {
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;
 		regulator-ramp-delay = <1000>;
+		regulator-always-on;
+		regulator-boot-on;
 		vin-supply = <&vcc3v3_sys>;
 
 		regulator-state-mem {
-- 
2.27.0


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Alex Bee <knaerzche@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>
Cc: Rob Herring <robh+dt@kernel.org>,
	Markus Reichl <m.reichl@fivetechno.de>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	Alex Bee <knaerzche@gmail.com>
Subject: [PATCH] arm64: dts: rockchip: Re-add regulator-boot-on, regulator-always-on for vdd_gpu on rk3399-roc-pc
Date: Sat, 19 Jun 2021 14:14:46 +0200	[thread overview]
Message-ID: <20210619121446.7802-1-knaerzche@gmail.com> (raw)

This might be a limitation of either the current panfrost driver
devfreq implementation or how the gpu is implemented in RK3399 SoC.
The gpu regulator must never get disabled or the registers get
(randomly?) inaccessable by the driver. (see all other RK3399 boards)

Fixes: ec7d731d81e7 ("arm64: dts: rockchip: Add node for gpu on rk3399-roc-pc")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index da3021dc0ff3..8b27ee4be755 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -494,6 +494,8 @@ vdd_gpu: regulator@41 {
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;
 		regulator-ramp-delay = <1000>;
+		regulator-always-on;
+		regulator-boot-on;
 		vin-supply = <&vcc3v3_sys>;
 
 		regulator-state-mem {
-- 
2.27.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2021-06-19 12:15 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-19 12:14 Alex Bee [this message]
2021-06-19 12:14 ` [PATCH] arm64: dts: rockchip: Re-add regulator-boot-on, regulator-always-on for vdd_gpu on rk3399-roc-pc Alex Bee
2021-06-19 12:14 ` Alex Bee
2021-06-19 21:58 ` Heiko Stuebner
2021-06-19 21:58   ` Heiko Stuebner
2021-06-19 21:58   ` Heiko Stuebner

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