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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,
	Michael Srba <michael.srba@seznam.cz>,
	Michael Srba <Michael.Srba@seznam.cz>
Subject: [PATCH v3 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: Mon, 24 Jan 2022 13:18:53 +0100	[thread overview]
Message-ID: <20220124121853.23600-5-michael.srba@seznam.cz> (raw)
In-Reply-To: <20220124121853.23600-1-michael.srba@seznam.cz>

From: Michael Srba <michael.srba@seznam.cz>

Signed-off-by: Michael Srba <Michael.Srba@seznam.cz>
---
 CHANGES:
 - v2: add this patch
 - v3: fix missing Signed-off-by
---
 arch/arm64/boot/dts/qcom/msm8998.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

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 {
-- 
2.34.1


  parent reply	other threads:[~2022-01-24 12:21 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-24 12:18 [PATCH v3 1/5] dt-bindings: clock: gcc-msm8998: Add definitions of SSC-related clocks michael.srba
2022-01-24 12:18 ` [PATCH v3 2/5] clk: qcom: gcc-msm8998: add " michael.srba
2022-01-26  3:36   ` Bjorn Andersson
2022-01-24 12:18 ` [PATCH v3 3/5] dt-bindings: bus: add device tree bindings for qcom,ssc-block-bus michael.srba
2022-01-24 16:01   ` Rob Herring
2022-01-24 23:43   ` Rob Herring
2022-01-24 12:18 ` [PATCH v3 4/5] drivers: bus: add driver for initializing the SSC bus on (some) qcom SoCs michael.srba
2022-01-24 21:16   ` Saravana Kannan
2022-01-24 12:18 ` michael.srba [this message]
2022-01-26  3:48   ` [PATCH v3 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 Bjorn Andersson

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