From: mgross@linux.intel.com
To: markgross@kernel.org, mgross@linux.intel.com, arnd@arndb.de,
bp@suse.de, damien.lemoal@wdc.com, dragan.cvetic@xilinx.com,
gregkh@linuxfoundation.org, corbet@lwn.net,
palmerdabbelt@google.com, paul.walmsley@sifive.com,
peng.fan@nxp.com, robh+dt@kernel.org, shawnguo@kernel.org,
jassisinghbrar@gmail.com
Cc: linux-kernel@vger.kernel.org,
Daniele Alessandrelli <daniele.alessandrelli@intel.com>,
devicetree@vger.kernel.org
Subject: [PATCH v4 02/34] dt-bindings: mailbox: Add Intel VPU IPC mailbox bindings
Date: Fri, 29 Jan 2021 18:20:52 -0800 [thread overview]
Message-ID: <20210130022124.65083-38-mgross@linux.intel.com> (raw)
In-Reply-To: <20210130022124.65083-1-mgross@linux.intel.com>
From: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Add bindings for the Intel VPU IPC mailbox driver.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Mark Gross <mgross@linux.intel.com>
---
.../mailbox/intel,vpu-ipc-mailbox.yaml | 69 +++++++++++++++++++
MAINTAINERS | 6 ++
2 files changed, 75 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mailbox/intel,vpu-ipc-mailbox.yaml
diff --git a/Documentation/devicetree/bindings/mailbox/intel,vpu-ipc-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/intel,vpu-ipc-mailbox.yaml
new file mode 100644
index 000000000000..923a6d619a64
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/intel,vpu-ipc-mailbox.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 Intel Corporation
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/mailbox/intel,vpu-ipc-mailbox.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Intel VPU IPC mailbox
+
+maintainers:
+ - Daniele Alessandrelli <daniele.alessandrelli@intel.com>
+
+description: |
+ Intel VPU SoCs like Keem Bay have hardware FIFOs to enable Inter-Processor
+ Communication (IPC) between the CPU and the VPU.
+
+ Specifically, there is one HW FIFO for the CPU (aka Application Processor -
+ AP) and one for the VPU. Each FIFO can hold 128 entries of 32 bits each. A
+ "FIFO-not-empty" interrupt is raised every time there is at least a message
+ in the FIFO. The CPU FIFO raises interrupts to the CPU, while the VPU FIFO
+ raises interrupts to VPU. When the CPU wants to send a message to the VPU it
+ writes to the VPU FIFO, similarly, when the VPU want to send a message to the
+ CPU, it writes to the CPU FIFO.
+
+ Refer to ./mailbox.txt for generic information about mailbox device-tree
+ bindings.
+
+properties:
+ compatible:
+ const: intel,vpu-ipc-mailbox
+
+ reg:
+ items:
+ - description: The CPU FIFO registers
+ - description: The VPU FIFO registers
+
+ reg-names:
+ items:
+ - const: cpu_fifo
+ - const: vpu_fifo
+
+ interrupts:
+ items:
+ - description: CPU FIFO-not-empty interrupt
+
+ "#mbox-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - "#mbox-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ vpu_ipc_mailbox@203300f0 {
+ compatible = "intel,vpu-ipc-mailbox";
+ #mbox-cells = <1>;
+ reg = <0x203300f0 0x310>,
+ <0x208200f0 0x310>;
+ reg-names = "cpu_fifo", "vpu_fifo";
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 992fe3b0900a..2b82526a00dc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9181,6 +9181,12 @@ L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/intel-vbtn.c
+INTEL VPU IPC MAILBOX
+M: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
+M: Mark Gross <mgross@linux.intel.com>
+S: Supported
+F: Documentation/devicetree/bindings/mailbox/intel,vpu-ipc-mailbox.yaml
+
INTEL WIRELESS 3945ABG/BG, 4965AGN (iwlegacy)
M: Stanislaw Gruszka <stf_xl@wp.pl>
L: linux-wireless@vger.kernel.org
--
2.17.1
next prev parent reply other threads:[~2021-01-30 10:06 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-30 2:20 [PATCH v3 00/34] Intel Vision Processing base enabling mgross
2021-01-30 2:20 ` [PATCH v3 01/34] Add Vision Processing Unit (VPU) documentation mgross
2021-01-30 2:20 ` [PATCH v3 02/34] dt-bindings: mailbox: Add Intel VPU IPC mailbox bindings mgross
2021-01-30 2:20 ` [PATCH v3 03/34] mailbox: vpu-ipc-mailbox: Add support for Intel VPU IPC mailbox mgross
2021-02-01 7:07 ` Jassi Brar
2021-02-01 15:49 ` Alessandrelli, Daniele
2021-01-30 2:20 ` [PATCH v3 04/34] dt-bindings: Add bindings for Keem Bay IPC driver mgross
2021-01-30 2:20 ` [PATCH v3 05/34] keembay-ipc: Add Keem Bay IPC module mgross
2021-01-30 2:20 ` [PATCH v3 06/34] dt-bindings: Add bindings for Keem Bay VPU IPC driver mgross
2021-01-30 2:20 ` [PATCH v3 07/34] keembay-vpu-ipc: Add Keem Bay VPU IPC module mgross
2021-01-30 2:20 ` [PATCH v3 08/34] misc: xlink-pcie: Add documentation for XLink PCIe driver mgross
2021-01-30 2:20 ` [PATCH v3 09/34] misc: xlink-pcie: lh: Add PCIe EPF driver for Local Host mgross
2021-01-30 2:20 ` [PATCH v3 10/34] misc: xlink-pcie: lh: Add PCIe EP DMA functionality mgross
2021-01-30 2:20 ` [PATCH v3 11/34] misc: xlink-pcie: lh: Add core communication logic mgross
2021-01-30 2:20 ` [PATCH v3 12/34] misc: xlink-pcie: lh: Prepare changes for adding remote host driver mgross
2021-01-30 2:20 ` [PATCH v3 13/34] misc: xlink-pcie: rh: Add PCIe EP driver for Remote Host mgross
2021-01-30 2:20 ` [PATCH v3 14/34] misc: xlink-pcie: rh: Add core communication logic mgross
2021-01-30 2:20 ` [PATCH v3 15/34] misc: xlink-pcie: Add XLink API interface mgross
2021-01-30 2:20 ` [PATCH v3 16/34] misc: xlink-pcie: Add asynchronous event notification support for XLink mgross
2021-01-30 2:20 ` [PATCH v3 17/34] xlink-ipc: Add xlink ipc device tree bindings mgross
2021-01-30 2:20 ` [PATCH v3 18/34] xlink-ipc: Add xlink ipc driver mgross
2021-01-30 2:20 ` [PATCH v3 19/34] xlink-core: Add xlink core device tree bindings mgross
2021-01-30 2:20 ` [PATCH v3 20/34] xlink-core: Add xlink core driver xLink mgross
2021-01-30 2:20 ` [PATCH v3 21/34] xlink-core: Enable xlink protocol over pcie mgross
2021-01-30 2:20 ` [PATCH v3 22/34] xlink-core: Enable VPU IP management and runtime control mgross
2021-01-30 2:20 ` [PATCH v3 23/34] xlink-core: add async channel and events mgross
2021-01-30 2:20 ` [PATCH v3 24/34] dt-bindings: misc: Add Keem Bay vpumgr mgross
2021-01-30 2:20 ` [PATCH v3 25/34] misc: Add Keem Bay VPU manager mgross
2021-02-01 2:04 ` Randy Dunlap
2021-01-30 2:20 ` [PATCH v3 26/34] dt-bindings: misc: intel_tsens: Add tsens thermal bindings documentation mgross
2021-01-30 2:20 ` [PATCH v3 27/34] misc: Tsens ARM host thermal driver mgross
2021-01-30 2:20 ` [PATCH v3 28/34] misc: Intel tsens IA host driver mgross
2021-01-30 7:01 ` Joe Perches
2021-02-02 7:21 ` C, Udhayakumar
2021-01-30 2:20 ` [PATCH v3 29/34] Intel tsens i2c slave driver mgross
2021-02-01 2:07 ` Randy Dunlap
2021-01-30 2:20 ` [PATCH v3 30/34] misc:intel_tsens: Intel Keem Bay tsens driver mgross
2021-01-30 2:20 ` [PATCH v3 31/34] Intel Keem Bay XLink SMBus driver mgross
2021-01-30 2:20 ` [PATCH v3 32/34] dt-bindings: misc: hddl_dev: Add hddl device management documentation mgross
2021-01-30 2:20 ` [PATCH v3 33/34] misc: Hddl device management for local host mgross
2021-01-30 2:20 ` [PATCH v3 34/34] misc: HDDL device management for IA host mgross
2021-01-30 2:20 ` [PATCH v4 00/34] Intel Vision Processing base enabling mgross
2021-01-30 2:20 ` [PATCH v4 01/34] Add Vision Processing Unit (VPU) documentation mgross
2021-01-30 2:20 ` mgross [this message]
2021-01-30 2:20 ` [PATCH v4 03/34] mailbox: vpu-ipc-mailbox: Add support for Intel VPU IPC mailbox mgross
2021-01-30 2:20 ` [PATCH v4 04/34] dt-bindings: Add bindings for Keem Bay IPC driver mgross
2021-01-30 2:20 ` [PATCH v4 05/34] keembay-ipc: Add Keem Bay IPC module mgross
2021-01-30 2:20 ` [PATCH v4 06/34] dt-bindings: Add bindings for Keem Bay VPU IPC driver mgross
2021-01-30 2:20 ` [PATCH v4 07/34] keembay-vpu-ipc: Add Keem Bay VPU IPC module mgross
2021-01-30 2:20 ` [PATCH v4 08/34] misc: xlink-pcie: Add documentation for XLink PCIe driver mgross
2021-01-30 2:20 ` [PATCH v4 09/34] misc: xlink-pcie: lh: Add PCIe EPF driver for Local Host mgross
2021-01-30 2:21 ` [PATCH v4 10/34] misc: xlink-pcie: lh: Add PCIe EP DMA functionality mgross
2021-01-30 2:21 ` [PATCH v4 11/34] misc: xlink-pcie: lh: Add core communication logic mgross
2021-01-30 2:21 ` [PATCH v4 12/34] misc: xlink-pcie: lh: Prepare changes for adding remote host driver mgross
2021-01-30 2:21 ` [PATCH v4 13/34] misc: xlink-pcie: rh: Add PCIe EP driver for Remote Host mgross
2021-01-30 2:21 ` [PATCH v4 14/34] misc: xlink-pcie: rh: Add core communication logic mgross
2021-01-30 2:21 ` [PATCH v4 15/34] misc: xlink-pcie: Add XLink API interface mgross
2021-01-30 2:21 ` [PATCH v4 16/34] misc: xlink-pcie: Add asynchronous event notification support for XLink mgross
2021-01-30 2:21 ` [PATCH v4 17/34] xlink-ipc: Add xlink ipc device tree bindings mgross
2021-01-30 2:21 ` [PATCH v4 18/34] xlink-ipc: Add xlink ipc driver mgross
2021-01-30 2:21 ` [PATCH v4 19/34] xlink-core: Add xlink core device tree bindings mgross
2021-01-30 2:21 ` [PATCH v4 20/34] xlink-core: Add xlink core driver xLink mgross
2021-01-30 2:21 ` [PATCH v4 21/34] xlink-core: Enable xlink protocol over pcie mgross
2021-01-30 2:21 ` [PATCH v4 22/34] xlink-core: Enable VPU IP management and runtime control mgross
2021-01-30 2:21 ` [PATCH v4 23/34] xlink-core: add async channel and events mgross
2021-01-30 2:21 ` [PATCH v4 24/34] dt-bindings: misc: Add Keem Bay vpumgr mgross
2021-01-30 2:21 ` [PATCH v4 25/34] misc: Add Keem Bay VPU manager mgross
2021-01-30 2:21 ` [PATCH v4 26/34] dt-bindings: misc: intel_tsens: Add tsens thermal bindings documentation mgross
2021-01-30 17:23 ` Rob Herring
2021-02-02 8:47 ` C, Udhayakumar
2021-01-30 2:21 ` [PATCH v4 27/34] misc: Tsens ARM host thermal driver mgross
2021-01-30 2:21 ` [PATCH v4 28/34] misc: Intel tsens IA host driver mgross
2021-01-30 2:21 ` [PATCH v4 29/34] Intel tsens i2c slave driver mgross
2021-02-01 2:13 ` Randy Dunlap
2021-02-01 15:20 ` Gross, Mark
2021-01-30 2:21 ` [PATCH v4 30/34] misc:intel_tsens: Intel Keem Bay tsens driver mgross
2021-01-30 2:21 ` [PATCH v4 31/34] Intel Keem Bay XLink SMBus driver mgross
2021-01-30 2:21 ` [PATCH v4 32/34] dt-bindings: misc: hddl_dev: Add hddl device management documentation mgross
2021-01-30 17:23 ` Rob Herring
2021-02-02 8:48 ` C, Udhayakumar
2021-01-30 2:21 ` [PATCH v4 33/34] misc: Hddl device management for local host mgross
2021-01-30 2:21 ` [PATCH v4 34/34] misc: HDDL device management for IA host mgross
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