From patchwork Sun Jan 23 18:35:47 2022
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From: michael.srba@seznam.cz
To: Andy Gross <agross@kernel.org>,
 Bjorn Andersson <bjorn.andersson@linaro.org>,
 Rob Herring <robh+dt@kernel.org>, Stephen Boyd <sboyd@kernel.org>,
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Linus Walleij <linus.walleij@linaro.org>,
 Florian Fainelli <f.fainelli@gmail.com>, Arnd Bergmann <arnd@arndb.de>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Saravana Kannan <saravanak@google.com>,
 linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
 Mis012 <michael.srba@seznam.cz>
Subject: [PATCH v2 5/5] arm64: dts: qcom: msm8998: reserve potentially
 inaccessible clocks With the gcc driver now being more complete and
 describing clocks which might not always be write-accessible to the OS,
 conservatively specify all such clocks as protected in the SoC dts. The board
 dts - or even user-supplied dts - can override this property to reflect the
 actual configuration.
Date: Sun, 23 Jan 2022 19:35:47 +0100
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From: Mis012 <michael.srba@seznam.cz>

diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
index f273bc1ff629..cff83af8c12e 100644
--- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
@@ -863,6 +863,12 @@ gcc: clock-controller@100000 {
 
 			clock-names = "xo", "sleep_clk";
 			clocks = <&xo>, <&sleep_clk>;
+
+			// be conservative by default, the board dts
+			// can overwrite this list
+			protected-clocks = <AGGRE2_SNOC_NORTH_AXI>,
+					   <SSC_XO>,
+					   <SSC_CNOC_AHBS_CLK>;
 		};
 
 		rpm_msg_ram: sram@778000 {