From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Andersson Subject: [PATCH v4 2/5] dt-bindings: mailbox: Introduce Qualcomm APCS global binding Date: Thu, 4 May 2017 13:05:36 -0700 Message-ID: <20170504200539.27027-2-bjorn.andersson@linaro.org> References: <20170504200539.27027-1-bjorn.andersson@linaro.org> Return-path: In-Reply-To: <20170504200539.27027-1-bjorn.andersson@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org To: Andy Gross , Rob Herring , Mark Rutland , Ohad Ben-Cohen , Jassi Brar Cc: linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-remoteproc@vger.kernel.org List-Id: devicetree@vger.kernel.org Introduce a binding for the Qualcomm APCS global block, exposing a mailbox for invoking interrupts on remote processors in the system. Signed-off-by: Bjorn Andersson --- Changes since v3: - Transition to mailbox binding Changes since v2: - New binding .../bindings/mailbox/qcom,apcs-kpss-global.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt new file mode 100644 index 000000000000..eaa9e780f412 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt @@ -0,0 +1,46 @@ +Binding for the Qualcomm APCS global block +========================================== + +This binding describes the APCS "global" block found in various Qualcomm +platforms. + +- compatible: + Usage: required + Value type: + Definition: must be one of: + "qcom,msm8916-apcs-kpss-global", + "qcom,msm8996-apcs-hmss-global" + +- reg: + Usage: required + Value type: + Definition: must specify the base address and size of the global block + +- #mbox-cells: + Usage: required + Value type: + Definition: as described in mailbox.txt, must be 1 + + += EXAMPLE +The following example describes the APCS HMSS found in MSM8996 and part of the +GLINK RPM referencing the "rpm_hlos" doorbell therein. + + apcs_glb: apcs-glb@9820000 { + compatible = "qcom,msm8996-apcs-hmss-global"; + reg = <0x9820000 0x1000>; + + #mbox-cells = <1>; + }; + + rpm-glink { + compatible = "qcom,glink-rpm"; + + interrupts = ; + + qcom,rpm-msg-ram = <&rpm_msg_ram>; + + mboxes = <&apcs_glb 0>; + mbox-names = "rpm_hlos"; + }; + -- 2.12.0