linux-kernel - [RFT PATCH v2 17/17] ARM: dts: qcom: msm8226: switch TCSR mutex to MMIO

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Date:   Wed, 17 Aug 2022 17:59:01 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Lee Jones <lee@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [RFT PATCH v2 17/17] ARM: dts: qcom: msm8226: switch TCSR mutex to MMIO

The TCSR mutex bindings allow device to be described only with address
space (so it uses MMIO, not syscon regmap).  This seems reasonable as
TCSR mutex is actually a dedicated IO address space and it also fixes DT
schema checks:

  qcom-msm8226-samsung-s3ve3g.dtb: hwlock: 'reg' is a required property
  qcom-msm8226-samsung-s3ve3g.dtb: hwlock: 'syscon' does not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 arch/arm/boot/dts/qcom-msm8226.dtsi | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-msm8226.dtsi b/arch/arm/boot/dts/qcom-msm8226.dtsi
index 0b5effdb269a..efb5d1edc3a8 100644
--- a/arch/arm/boot/dts/qcom-msm8226.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8226.dtsi
@@ -44,13 +44,6 @@ scm {
 		};
 	};
 
-	tcsr_mutex: hwlock {
-		compatible = "qcom,tcsr-mutex";
-		syscon = <&tcsr_mutex_block 0 0x80>;
-
-		#hwlock-cells = <1>;
-	};
-
 	reserved-memory {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -508,9 +501,10 @@ rpm_msg_ram: memory@...28000 {
 			reg = <0xfc428000 0x4000>;
 		};
 
-		tcsr_mutex_block: syscon@...84000 {
-			compatible = "syscon";
-			reg = <0xfd484000 0x2000>;
+		tcsr_mutex: hwlock@...84000 {
+			compatible = "qcom,msm8226-tcsr-mutex", "qcom,tcsr-mutex";
+			reg = <0xfd484000 0x1000>;
+			#hwlock-cells = <1>;
 		};
 	};
 
-- 
2.34.1