linux-kernel - [PATCH v2 5/5] arm64: dts: exynos: gs101-oriole: add pd-disable and typec-power-opmode

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Message-Id: <20241203-gs101-phy-lanes-orientation-dts-v2-5-1412783a6b01@linaro.org>
Date: Tue, 03 Dec 2024 12:40:28 +0000
From: André Draszik <andre.draszik@...aro.org>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Peter Griffin <peter.griffin@...aro.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Sam Protsenko <semen.protsenko@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, Roy Luo <royluo@...gle.com>, 
 kernel-team@...roid.com, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
 devicetree@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH v2 5/5] arm64: dts: exynos: gs101-oriole: add pd-disable
 and typec-power-opmode

When the serial console is enabled, we need to disable power delivery
since serial uses the SBU1/2 pins and appears to confuse the TCPCI,
resulting in endless interrupts.

For now, change the DT such that the serial console continues working.

Note1: We can not have both typec-power-opmode and
new-source-frs-typec-current active at the same time, as otherwise DT
binding checks complain.

Note2: When using a downstream DT, the Pixel boot-loader will modify
the DT accordingly before boot, but for this upstream DT it doesn't
know where to find the TCPCI node. The intention is for this commit to
be reverted once an updated Pixel boot-loader becomes available.

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
 arch/arm64/boot/dts/exynos/google/gs101-oriole.dts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
index a5cbf1e10c7b..e58881c61d53 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
+++ b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
@@ -107,7 +107,6 @@ connector {
 			self-powered;
 			try-power-role = "sink";
 			op-sink-microwatt = <2600000>;
-			new-source-frs-typec-current = <FRS_5V_1P5A>;
 			slow-charger-loop;
 			/*
 			 * max77759 operating in reverse boost mode (0xA) can
@@ -146,6 +145,12 @@ VDO_DFP(DFP_VDO_VER1_1,
 						0, 0, 0x18d1)
 					VDO_CERT(0x0)
 					VDO_PRODUCT(0x4ee1, 0x0)>;
+			/*
+			 * Until bootloader is updated to set those two when
+			 * console is enabled, we disable PD here.
+			 */
+			pd-disable;
+			typec-power-opmode = "default";
 
 			ports {
 				#address-cells = <1>;

-- 
2.47.0.338.g60cca15819-goog