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([178.197.216.144]) by smtp.gmail.com with ESMTPSA id h3-20020a056000000300b002c3e5652744sm5081955wrx.46.2023.02.07.01.08.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Feb 2023 01:08:59 -0800 (PST) From: Krzysztof Kozlowski To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski Subject: [PATCH 4/5] dt-bindings: remoteproc: qcom,glink-rpm-edge: convert to DT schema Date: Tue, 7 Feb 2023 10:08:51 +0100 Message-Id: <20230207090852.28421-4-krzysztof.kozlowski@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230207090852.28421-1-krzysztof.kozlowski@linaro.org> References: <20230207090852.28421-1-krzysztof.kozlowski@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Convert Qualcomm G-Link RPM edge binding to DT schema. Move it to remoteproc as it better suits the purpose - communication channel with remote processor. Signed-off-by: Krzysztof Kozlowski --- .../remoteproc/qcom,glink-rpm-edge.yaml | 92 ++++++++++++++++++ .../bindings/soc/qcom/qcom,glink.txt | 94 ------------------- 2 files changed, 92 insertions(+), 94 deletions(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,glink-rpm-edge.yaml delete mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,glink-rpm-edge.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,glink-rpm-edge.yaml new file mode 100644 index 000000000000..07cd67ec97c1 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/qcom,glink-rpm-edge.yaml @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/qcom,glink-rpm-edge.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm G-Link RPM edge + +description: | + Qualcomm G-Link edge, a FIFO based mechanism for communication with Resource + Power Manager (RPM) on various Qualcomm platforms. + +maintainers: + - Bjorn Andersson + +properties: + compatible: + const: qcom,glink-rpm + + label: + $ref: /schemas/types.yaml#/definitions/string + description: + Name of the edge, used for debugging and identification purposes. The + node name will be used if this is not present. + + interrupts: + maxItems: 1 + + mboxes: + items: + - description: rpm_hlos mailbox in APCS + + qcom,remote-pid: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The identifier for the remote processor as known by the rest of the + system. + + qcom,rpm-msg-ram: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + RPM message memory resource (compatible:: qcom,rpm-msg-ram). + + rpm-requests: + type: object + $ref: /schemas/soc/qcom/qcom,smd-rpm.yaml# + unevaluatedProperties: false + description: + Qualcomm Resource Power Manager (RPM) over G-Link + + properties: + qcom,intents: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + List of (size, amount) pairs describing what intents should be + preallocated for this virtual channel. This can be used to tweak the + default intents available for the channel to meet expectations of the + remote. + + required: + - qcom,glink-channels + +required: + - compatible + - interrupts + - mboxes + +anyOf: + - required: + - qcom,remote-pid + - required: + - qcom,rpm-msg-ram + +additionalProperties: false + +examples: + - | + #include + + rpm-glink { + compatible = "qcom,glink-rpm"; + interrupts = ; + mboxes = <&apcs_glb 0>; + qcom,rpm-msg-ram = <&rpm_msg_ram>; + + rpm-requests { + compatible = "qcom,rpm-msm8996"; + qcom,glink-channels = "rpm_requests"; + + /* ... */ + }; + }; diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt deleted file mode 100644 index 1214192847ac..000000000000 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt +++ /dev/null @@ -1,94 +0,0 @@ -Qualcomm GLINK edge binding - -This binding describes a Qualcomm GLINK edge, a fifo based mechanism for -communication between subsystem-pairs on various Qualcomm platforms. Two types -of edges can be described by the binding; the GLINK RPM edge and a SMEM based -edge. - -- compatible: - Usage: required for glink-rpm - Value type: - Definition: must be "qcom,glink-rpm" - -- label: - Usage: optional - Value type: - Definition: should specify the subsystem name this edge corresponds to. - -- interrupts: - Usage: required - Value type: - Definition: should specify the IRQ used by the remote processor to - signal this processor about communication related events - -- qcom,remote-pid: - Usage: required for glink-smem - Value type: - Definition: specifies the identifier of the remote endpoint of this edge - -- qcom,rpm-msg-ram: - Usage: required for glink-rpm - Value type: - Definition: handle to RPM message memory resource - -- mboxes: - Usage: required - Value type: - Definition: reference to the "rpm_hlos" mailbox in APCS, as described - in mailbox/mailbox.txt - -= GLINK DEVICES -Each subnode of the GLINK node represent function tied to a virtual -communication channel. The name of the nodes are not important. The properties -of these nodes are defined by the individual bindings for the specific function -- but must contain the following property: - -- qcom,glink-channels: - Usage: required - Value type: - Definition: a list of channels tied to this function, used for matching - the function to a set of virtual channels - -- qcom,intents: - Usage: optional - Value type: - Definition: a list of size,amount pairs describing what intents should - be preallocated for this virtual channel. This can be used - to tweak the default intents available for the channel to - meet expectations of the remote. - -= EXAMPLE -The following example represents the GLINK RPM node on a MSM8996 device, with -the function for the "rpm_request" channel defined, which is used for -regulators and root clocks. - - apcs_glb: mailbox@9820000 { - compatible = "qcom,msm8996-apcs-hmss-global"; - reg = <0x9820000 0x1000>; - - #mbox-cells = <1>; - }; - - rpm_msg_ram: memory@68000 { - compatible = "qcom,rpm-msg-ram"; - reg = <0x68000 0x6000>; - }; - - rpm-glink { - compatible = "qcom,glink-rpm"; - - interrupts = ; - - qcom,rpm-msg-ram = <&rpm_msg_ram>; - - mboxes = <&apcs_glb 0>; - - rpm-requests { - compatible = "qcom,rpm-msm8996"; - qcom,glink-channels = "rpm_requests"; - - qcom,intents = <0x400 5 - 0x800 1>; - ... - }; - };