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Message-Id: <20230211204751.9149-1-avolmat@me.com>
Date: Sat, 11 Feb 2023 21:47:50 +0100
From: Alain Volmat <avolmat@...com>
To: Bjorn Andersson <andersson@...nel.org>,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Patrice Chotard <patrice.chotard@...s.st.com>
Cc: Alain Volmat <avolmat@...com>, linux-remoteproc@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: remoteproc: sti: convert st-rproc into dt-schema
Convert the st-rproc.txt binding into dt-schema YAML st,sti-rproc.yaml
Signed-off-by: Alain Volmat <avolmat@...com>
---
.../bindings/remoteproc/st,sti-rproc.yaml | 101 ++++++++++++++++++
.../bindings/remoteproc/st-rproc.txt | 41 -------
2 files changed, 101 insertions(+), 41 deletions(-)
create mode 100644 Documentation/devicetree/bindings/remoteproc/st,sti-rproc.yaml
delete mode 100644 Documentation/devicetree/bindings/remoteproc/st-rproc.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/st,sti-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/st,sti-rproc.yaml
new file mode 100644
index 000000000000..b9d84dfbcb58
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/st,sti-rproc.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/remoteproc/st,sti-rproc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STi remote processor controller
+
+description:
+ This binding provides support for adjunct processors found on ST SoCs.
+
+ Co-processors can be controlled from the bootloader or the primary OS. If
+ the bootloader starts a co-processor, the primary OS must detect its state
+ and act accordingly.
+
+maintainers:
+ - Patrice Chotard <patrice.chotard@...s.st.com>
+
+properties:
+ compatible:
+ enum:
+ - st,st231-rproc
+ - st,st40-rproc
+
+ memory-region:
+ description:
+ List of phandles to the reserved memory regions associated with the
+ remoteproc device. This is variable and describes the memories shared with
+ the remote processor (e.g. remoteproc firmware and carveouts, rpmsg
+ vrings, ...).
+ (see ../reserved-memory/reserved-memory.txt)
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ maxItems: 1
+
+ st,syscfg:
+ description:
+ System configuration register which holds the boot vector for the co-processor
+ $ref: "/schemas/types.yaml#/definitions/phandle-array"
+ items:
+ - items:
+ - description: Phandle of syscon block
+ - description: Boot vector register offset
+
+ clocks:
+ maxItems: 1
+
+ clock-frequency:
+ description:
+ Frequency of the processing clock of the remote processor
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+ "#mbox-cells":
+ const: 1
+
+ mboxes:
+ maxItems: 4
+
+ mbox-names:
+ items:
+ - const: vq0_rx
+ - const: vq0_tx
+ - const: vq1_rx
+ - const: vq1_tx
+
+required:
+ - compatible
+ - memory-region
+ - resets
+ - reset-names
+ - st,syscfg
+ - clocks
+ - clock-frequency
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stih407-clks.h>
+ #include <dt-bindings/reset/stih407-resets.h>
+ audio_reserved: rproc@...00000 {
+ compatible = "shared-dma-pool";
+ reg = <0x42000000 0x01000000>;
+ no-map;
+ };
+
+ st231-audio {
+ compatible = "st,st231-rproc";
+ memory-region = <&audio_reserved>;
+ resets = <&softreset STIH407_ST231_AUD_SOFTRESET>;
+ reset-names = "sw_reset";
+ clocks = <&clk_s_c0_flexgen CLK_ST231_AUD_0>;
+ clock-frequency = <600000000>;
+ st,syscfg = <&syscfg_core 0x228>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/remoteproc/st-rproc.txt b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt
deleted file mode 100644
index 1031bcd90a79..000000000000
--- a/Documentation/devicetree/bindings/remoteproc/st-rproc.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-STMicroelectronics Co-Processor Bindings
-----------------------------------------
-
-This binding provides support for adjunct processors found on ST SoCs.
-
-Co-processors can be controlled from the bootloader or the primary OS. If
-the bootloader starts a co-processor, the primary OS must detect its state
-and act accordingly.
-
-Required properties:
-- compatible Should be one of:
- "st,st231-rproc"
- "st,st40-rproc"
-- memory-region Reserved memory (See: ../reserved-memory/reserved-memory.txt)
-- resets Reset lines (See: ../reset/reset.txt)
-- reset-names Must be "sw_reset" and "pwr_reset"
-- clocks Clock for co-processor (See: ../clock/clock-bindings.txt)
-- clock-frequency Clock frequency to set co-processor at if the bootloader
- hasn't already done so
-- st,syscfg System configuration register which holds the boot vector
- for the co-processor
- 1st cell: Phandle to syscon block
- 2nd cell: Boot vector register offset
-
-Example:
-
- audio_reserved: rproc@...00000 {
- compatible = "shared-dma-pool";
- reg = <0x42000000 0x01000000>;
- no-map;
- };
-
- st231-audio {
- compatible = "st,st231-rproc";
- memory-region = <&audio_reserved>;
- resets = <&softreset STIH407_ST231_AUD_SOFTRESET>;
- reset-names = "sw_reset";
- clocks = <&clk_s_c0_flexgen CLK_ST231_AUD_0>;
- clock-frequency = <600000000>;
- st,syscfg = <&syscfg_core 0x228>;
- };
--
2.34.1
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