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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Andy Gross <agross@kernel.org>, David Brown <david.brown@linaro.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 3/8] arm64: dts: qcom: qcs404-evb: Mark CDSP clocks protected
Date: Thu,  9 May 2019 21:34:16 -0700	[thread overview]
Message-ID: <20190510043421.31393-4-bjorn.andersson@linaro.org> (raw)
In-Reply-To: <20190510043421.31393-1-bjorn.andersson@linaro.org>

With the Trustzone based CDSP remoteproc driver these clocks are
controlled elsewhere and as they are not enabled by anything in Linux
the clock framework will turn them off during lateinit.

This results in issues either to later start the CDSP, using the
Trustzone interface, or if the CDSP is already running it will crash.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 arch/arm64/boot/dts/qcom/qcs404-evb.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
index 2c3127167e3c..dc1d7d5d21a4 100644
--- a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
@@ -56,6 +56,13 @@
 	qcom,controlled-remotely;
 };
 
+&gcc {
+	protected-clocks = <GCC_BIMC_CDSP_CLK>,
+			   <GCC_CDSP_CFG_AHB_CLK>,
+			   <GCC_CDSP_BIMC_CLK_SRC>,
+			   <GCC_CDSP_TBU_CLK>;
+};
+
 &pms405_spmi_regulators {
 	vdd_s3-supply = <&pms405_s3>;
 
-- 
2.18.0

  parent reply	other threads:[~2019-05-10  4:34 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10  4:34 [PATCH v2 0/8] Qualcomm QCS404 CDSP improvements and fastrpc Bjorn Andersson
2019-05-10  4:34 ` [PATCH v2 1/8] dt-bindings: remoteproc: Rename and amend Hexagon v56 binding Bjorn Andersson
2019-05-13 15:23   ` Rob Herring
2019-05-10  4:34 ` [PATCH v2 2/8] remoteproc: qcom: qdsp6-adsp: Add support for QCS404 CDSP Bjorn Andersson
2019-05-10  4:34 ` Bjorn Andersson [this message]
2019-05-10  4:34 ` [PATCH v2 4/8] arm64: dts: qcom: qcs404: Add TCSR node Bjorn Andersson
2019-05-10  4:34 ` [PATCH v2 5/8] arm64: dts: qcom: qcs404: Fully describe the CDSP Bjorn Andersson
2019-05-10  4:34 ` [PATCH v2 6/8] arm64: dts: qcom: qcs404: Move lpass and q6 into soc Bjorn Andersson
2019-05-10  4:34 ` [PATCH v2 7/8] arm64: dts: qcom: qcs404: Define APPS IOMMU Bjorn Andersson
2019-05-13  4:54   ` Vinod Koul
2019-05-13 18:28     ` Bjorn Andersson
2019-05-10  4:34 ` [PATCH v2 8/8] arm64: dts: qcom: qcs404: Add fastrpc nodes Bjorn Andersson

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