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[104.188.17.28]) by smtp.gmail.com with ESMTPSA id f7sm3135396otl.60.2020.06.22.00.59.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jun 2020 00:59:47 -0700 (PDT) From: Bjorn Andersson To: Andy Gross , Bjorn Andersson , Ohad Ben-Cohen , Baolin Wang , Rob Herring Cc: linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Vinod Koul Subject: [PATCH v2 2/4] dt-bindings: hwlock: qcom: Allow device on mmio bus Date: Mon, 22 Jun 2020 00:59:54 -0700 Message-Id: <20200622075956.171058-3-bjorn.andersson@linaro.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200622075956.171058-1-bjorn.andersson@linaro.org> References: <20200622075956.171058-1-bjorn.andersson@linaro.org> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org In modern Qualcomm platforms the mutex region of the TCSR is forked off into its own block, all with a offset of 0 and stride of 4096, and in some of these platforms no other registers in this region is accessed from Linux. Update the binding to allow the hardware block to be described directly on the mmio bus, in addition to allowing the existing syscon based definition for backwards compatibility. Reviewed-by: Vinod Koul Signed-off-by: Bjorn Andersson --- Changes since v1: - None .../bindings/hwlock/qcom-hwspinlock.yaml | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) -- 2.26.2 diff --git a/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml index 71e63b52edd5..88f975837588 100644 --- a/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml +++ b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml @@ -19,6 +19,9 @@ properties: - qcom,sfpb-mutex - qcom,tcsr-mutex + reg: + maxItems: 1 + '#hwlock-cells': const: 1 @@ -31,7 +34,12 @@ properties: required: - compatible - '#hwlock-cells' - - syscon + +oneOf: + - required: + - reg + - required: + - syscon additionalProperties: false @@ -46,6 +54,12 @@ examples: compatible = "qcom,tcsr-mutex"; syscon = <&tcsr_mutex_block 0 0x80>; + #hwlock-cells = <1>; + }; + - | + tcsr_mutex: hwlock@1f40000 { + compatible = "qcom,tcsr-mutex"; + reg = <0x01f40000 0x40000>; #hwlock-cells = <1>; }; ...