linux-kernel - [PATCH AUTOSEL 5.10 04/36] arm64: dts: qcom: sdm845: Reserve LPASS clocks in gcc

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Message-Id: <20210208175806.2091668-4-sashal@kernel.org>
Date:   Mon,  8 Feb 2021 12:57:34 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Vinod Koul <vkoul@...nel.org>, Sasha Levin <sashal@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH AUTOSEL 5.10 04/36] arm64: dts: qcom: sdm845: Reserve LPASS clocks in gcc

From: Bjorn Andersson <bjorn.andersson@...aro.org>

[ Upstream commit 93f2a11580a9732c1d90f9e01a7e9facc825658f ]

The GCC_LPASS_Q6_AXI_CLK and GCC_LPASS_SWAY_CLK clocks may not be
touched on a typical UEFI based SDM845 device, but when the kernel is
built with CONFIG_SDM_LPASSCC_845 this happens, unless they are marked
as protected-clocks in the DT.

This was done for the MTP and the Pocophone, but not for DB845c and the
Lenovo Yoga C630 - causing these to fail to boot if the LPASS clock
controller is enabled (which it typically isn't).

Tested-by: Vinod Koul <vkoul@...nel.org> #on db845c
Reviewed-by: Vinod Koul <vkoul@...nel.org>
Link: https://lore.kernel.org/r/20201222001103.3112306-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts           | 4 +++-
 arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index 7cc236575ee20..c0b93813ea9ac 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -415,7 +415,9 @@ &dsi0_phy {
 &gcc {
 	protected-clocks = <GCC_QSPI_CORE_CLK>,
 			   <GCC_QSPI_CORE_CLK_SRC>,
-			   <GCC_QSPI_CNOC_PERIPH_AHB_CLK>;
+			   <GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
+			   <GCC_LPASS_Q6_AXI_CLK>,
+			   <GCC_LPASS_SWAY_CLK>;
 };
 
 &gpu {
diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index 76a8c996d497f..5748a404062bb 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -245,7 +245,9 @@ &cdsp_pas {
 &gcc {
 	protected-clocks = <GCC_QSPI_CORE_CLK>,
 			   <GCC_QSPI_CORE_CLK_SRC>,
-			   <GCC_QSPI_CNOC_PERIPH_AHB_CLK>;
+			   <GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
+			   <GCC_LPASS_Q6_AXI_CLK>,
+			   <GCC_LPASS_SWAY_CLK>;
 };
 
 &gpu {
-- 
2.27.0