From: Cristian Marussi <cristian.marussi@arm.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, f.fainelli@gmail.com, etienne.carriere@linaro.org, vincent.guittot@linaro.org, souvik.chakravarty@arm.com, cristian.marussi@arm.com, igor.skalkin@opensynergy.com, peter.hilber@opensynergy.com, alex.bennee@linaro.org, jean-philippe@linaro.org, mikhail.golubev@opensynergy.com, anton.yakovlev@opensynergy.com, Vasyl.Vavrychuk@opensynergy.com, Andriy.Tryshnivskyy@opensynergy.com, Rob Herring <robh+dt@kernel.org>, devicetree@vger.kernel.org Subject: [PATCH v4 13/16] dt-bindings: arm: Add virtio transport for SCMI Date: Fri, 11 Jun 2021 17:59:34 +0100 [thread overview] Message-ID: <20210611165937.701-14-cristian.marussi@arm.com> (raw) In-Reply-To: <20210611165937.701-1-cristian.marussi@arm.com> From: Igor Skalkin <igor.skalkin@opensynergy.com> Document the properties for arm,scmi-virtio compatible nodes. The backing virtio SCMI device is described in patch [1]. While doing that, make shmem property required only for pre-existing mailbox and smc transports, since virtio-scmi does not need it. [1] https://lists.oasis-open.org/archives/virtio-comment/202102/msg00018.html CC: Rob Herring <robh+dt@kernel.org> CC: devicetree@vger.kernel.org Signed-off-by: Igor Skalkin <igor.skalkin@opensynergy.com> [ Peter: Adapted patch for submission to upstream. ] Co-developed-by: Peter Hilber <peter.hilber@opensynergy.com> Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com> [ Cristian: converted to yaml format, moved shmen required property. ] Co-developed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- v3 --> V4 - convertd to YAML - make shmem required only for pre-existing mailbox and smc transport - updated VirtIO specification patch message reference - dropped virtio-mmio SCMI device example since really not pertinent to virtio-scmi dt bindings transport: it is not even referenced in SCMI virtio DT node since they are enumerated by VirtIO subsystem and there could be PCI based SCMI devices anyway. --- Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index cebf6ffe70d5..5c4c6782e052 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -34,6 +34,10 @@ properties: - description: SCMI compliant firmware with ARM SMC/HVC transport items: - const: arm,scmi-smc + - description: SCMI compliant firmware with SCMI Virtio transport. + The virtio transport only supports a single device. + items: + - const: arm,scmi-virtio interrupts: description: @@ -172,6 +176,7 @@ patternProperties: Each sub-node represents a protocol supported. If the platform supports a dedicated communication channel for a particular protocol, then the corresponding transport properties must be present. + The virtio transport does not support a dedicated communication channel. properties: reg: @@ -195,7 +200,6 @@ patternProperties: required: - compatible - - shmem if: properties: @@ -209,6 +213,7 @@ then: required: - mboxes + - shmem else: if: @@ -219,6 +224,7 @@ else: then: required: - arm,smc-id + - shmem examples: - | -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Cristian Marussi <cristian.marussi@arm.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, f.fainelli@gmail.com, etienne.carriere@linaro.org, vincent.guittot@linaro.org, souvik.chakravarty@arm.com, cristian.marussi@arm.com, igor.skalkin@opensynergy.com, peter.hilber@opensynergy.com, alex.bennee@linaro.org, jean-philippe@linaro.org, mikhail.golubev@opensynergy.com, anton.yakovlev@opensynergy.com, Vasyl.Vavrychuk@opensynergy.com, Andriy.Tryshnivskyy@opensynergy.com, Rob Herring <robh+dt@kernel.org>, devicetree@vger.kernel.org Subject: [PATCH v4 13/16] dt-bindings: arm: Add virtio transport for SCMI Date: Fri, 11 Jun 2021 17:59:34 +0100 [thread overview] Message-ID: <20210611165937.701-14-cristian.marussi@arm.com> (raw) In-Reply-To: <20210611165937.701-1-cristian.marussi@arm.com> From: Igor Skalkin <igor.skalkin@opensynergy.com> Document the properties for arm,scmi-virtio compatible nodes. The backing virtio SCMI device is described in patch [1]. While doing that, make shmem property required only for pre-existing mailbox and smc transports, since virtio-scmi does not need it. [1] https://lists.oasis-open.org/archives/virtio-comment/202102/msg00018.html CC: Rob Herring <robh+dt@kernel.org> CC: devicetree@vger.kernel.org Signed-off-by: Igor Skalkin <igor.skalkin@opensynergy.com> [ Peter: Adapted patch for submission to upstream. ] Co-developed-by: Peter Hilber <peter.hilber@opensynergy.com> Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com> [ Cristian: converted to yaml format, moved shmen required property. ] Co-developed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- v3 --> V4 - convertd to YAML - make shmem required only for pre-existing mailbox and smc transport - updated VirtIO specification patch message reference - dropped virtio-mmio SCMI device example since really not pertinent to virtio-scmi dt bindings transport: it is not even referenced in SCMI virtio DT node since they are enumerated by VirtIO subsystem and there could be PCI based SCMI devices anyway. --- Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index cebf6ffe70d5..5c4c6782e052 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -34,6 +34,10 @@ properties: - description: SCMI compliant firmware with ARM SMC/HVC transport items: - const: arm,scmi-smc + - description: SCMI compliant firmware with SCMI Virtio transport. + The virtio transport only supports a single device. + items: + - const: arm,scmi-virtio interrupts: description: @@ -172,6 +176,7 @@ patternProperties: Each sub-node represents a protocol supported. If the platform supports a dedicated communication channel for a particular protocol, then the corresponding transport properties must be present. + The virtio transport does not support a dedicated communication channel. properties: reg: @@ -195,7 +200,6 @@ patternProperties: required: - compatible - - shmem if: properties: @@ -209,6 +213,7 @@ then: required: - mboxes + - shmem else: if: @@ -219,6 +224,7 @@ else: then: required: - arm,smc-id + - shmem examples: - | -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-06-11 17:01 UTC|newest] Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-11 16:59 [PATCH v4 00/16] Introduce SCMI VirtIO transport Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 01/16] firmware: arm_scmi: Fix max pending messages boundary check Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:04 ` Cristian Marussi 2021-07-01 10:04 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 02/16] firmware: arm_scmi: Add support for type handling in common functions Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 03/16] firmware: arm_scmi: Add transport optional init/exit support Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 13:29 ` Jonathan Cameron 2021-06-14 13:29 ` Jonathan Cameron 2021-06-16 9:04 ` Cristian Marussi 2021-06-16 9:04 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 04/16] firmware: arm_scmi: Introduce monotonically increasing tokens Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 13:53 ` Jonathan Cameron 2021-06-14 13:53 ` Jonathan Cameron 2021-06-16 9:11 ` Cristian Marussi 2021-06-16 9:11 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:16 ` Cristian Marussi 2021-07-01 10:16 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 05/16] firmware: arm_scmi: Introduce delegated xfers support Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:24 ` Cristian Marussi 2021-07-01 10:24 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 06/16] firmware: arm_scmi, smccc, mailbox: Make shmem based transports optional Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:27 ` Cristian Marussi 2021-07-01 10:27 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 07/16] firmware: arm_scmi: Add op to override max message # Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 14:04 ` Jonathan Cameron 2021-06-14 14:04 ` Jonathan Cameron 2021-06-16 9:13 ` Cristian Marussi 2021-06-16 9:13 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 08/16] [RFC][REWORK] " Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 09/16] firmware: arm_scmi: Add optional link_supplier() transport op Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 10/16] firmware: arm_scmi: Add per-device transport private info Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 11/16] firmware: arm_scmi: Add is_scmi_protocol_device() Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 12/16] firmware: arm_scmi: Add message passing abstractions for transports Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 14:10 ` Jonathan Cameron 2021-06-14 14:10 ` Jonathan Cameron 2021-06-16 9:14 ` Cristian Marussi 2021-06-16 9:14 ` Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi [this message] 2021-06-11 16:59 ` [PATCH v4 13/16] dt-bindings: arm: Add virtio transport for SCMI Cristian Marussi 2021-06-24 19:22 ` Rob Herring 2021-06-24 19:22 ` Rob Herring 2021-06-24 19:22 ` Rob Herring 2021-07-01 8:43 ` Peter Hilber 2021-07-01 8:43 ` [virtio-dev] " Peter Hilber 2021-07-01 8:43 ` Peter Hilber 2021-07-01 10:31 ` Cristian Marussi 2021-07-01 10:31 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 14/16] firmware: arm_scmi: Add virtio transport Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 14:23 ` Jonathan Cameron 2021-06-14 14:23 ` Jonathan Cameron 2021-06-16 10:18 ` Cristian Marussi 2021-06-16 10:18 ` Cristian Marussi 2021-07-01 8:43 ` Peter Hilber 2021-07-01 8:43 ` [virtio-dev] " Peter Hilber 2021-07-01 8:43 ` Peter Hilber 2021-07-01 10:34 ` Cristian Marussi 2021-07-01 10:34 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 15/16] [RFC][REWORK] firmware: arm_scmi: make virtio-scmi use delegated xfers Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:43 ` Peter Hilber 2021-07-01 8:43 ` [virtio-dev] " Peter Hilber 2021-07-01 8:43 ` Peter Hilber 2021-07-01 11:26 ` Cristian Marussi 2021-07-01 11:26 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 16/16] firmware: arm_scmi: Add polling mode to virtio transport Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 11:43 ` [PATCH v4 00/16] Introduce SCMI VirtIO transport Christoph Hellwig 2021-06-14 11:43 ` Christoph Hellwig 2021-06-14 11:43 ` Christoph Hellwig 2021-06-14 14:03 ` Cristian Marussi 2021-06-14 14:03 ` Cristian Marussi
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