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Date: Sat, 12 Nov 2022 00:46:51 +0200
From: Vladimir Oltean <vladimir.oltean@....com>
To: linux-spi@...r.kernel.org
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Vladimir Oltean <olteanv@...il.com>,
Mark Brown <broonie@...nel.org>,
Kuldeep Singh <singh.kuldeep87k@...il.com>,
Michael Walle <michael@...le.cc>,
Kuldeep Singh <kuldeep.singh@....com>
Subject: [PATCH v2] dt-bindings: spi: convert Freescale DSPI to dt-schema
From: Kuldeep Singh <kuldeep.singh@....com>
Convert the Freescale DSPI binding to DT schema format.
Signed-off-by: Kuldeep Singh <kuldeep.singh@....com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
v1 (from more than 1 year ago) at:
https://patchwork.kernel.org/project/spi-devel-general/patch/20210315121518.3710171-1-kuldeep.singh@nxp.com/
.../fsl,spi-fsl-dspi-peripheral-props.yaml | 28 +++++
.../bindings/spi/fsl,spi-fsl-dspi.yaml | 118 ++++++++++++++++++
.../devicetree/bindings/spi/spi-fsl-dspi.txt | 65 ----------
.../bindings/spi/spi-peripheral-props.yaml | 1 +
MAINTAINERS | 3 +-
5 files changed, 149 insertions(+), 66 deletions(-)
create mode 100644 Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi-peripheral-props.yaml
create mode 100644 Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi.yaml
delete mode 100644 Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
diff --git a/Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi-peripheral-props.yaml
new file mode 100644
index 000000000000..d15f77c040d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi-peripheral-props.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/fsl,spi-fsl-dspi-peripheral-props.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Peripheral-specific properties for Freescale DSPI controller
+
+maintainers:
+ - Vladimir Oltean <olteanv@...il.com>
+
+description:
+ See spi-peripheral-props.yaml for more info.
+
+properties:
+ fsl,spi-cs-sck-delay:
+ description:
+ Delay in nanoseconds between activating chip select and the start of
+ clock signal, at the start of a transfer.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ fsl,spi-sck-cs-delay:
+ description:
+ Delay in nanoseconds between stopping the clock signal and
+ deactivating chip select, at the end of a transfer.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi.yaml b/Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi.yaml
new file mode 100644
index 000000000000..8a790c0ed95f
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi.yaml
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/fsl,spi-fsl-dspi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale DSPI Controller
+
+maintainers:
+ - Vladimir Oltean <olteanv@...il.com>
+
+allOf:
+ - $ref: "spi-controller.yaml#"
+
+properties:
+ compatible:
+ description:
+ Some integrations can have a single compatible string containing their
+ SoC name (LS1012A, LS1021A, ...). Others require their SoC compatible
+ string, plus a fallback compatible string (either on LS1021A or on
+ LS2085A).
+ oneOf:
+ - enum:
+ - fsl,ls1012a-dspi
+ - fsl,ls1021a-v1.0-dspi
+ - fsl,ls1028a-dspi
+ - fsl,ls2085a-dspi
+ - fsl,lx2160a-dspi
+ - fsl,vf610-dspi
+ - items:
+ - enum:
+ - fsl,ls1012a-dspi
+ - fsl,ls1028a-dspi
+ - fsl,ls1043a-dspi
+ - fsl,ls1046a-dspi
+ - fsl,ls1088a-dspi
+ - const: fsl,ls1021a-v1.0-dspi
+ - items:
+ - enum:
+ - fsl,ls2080a-dspi
+ - fsl,lx2160a-dspi
+ - const: fsl,ls2085a-dspi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: dspi
+
+ dmas:
+ maxItems: 2
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+ spi-num-chipselects:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Number of available native Chip Select signals
+
+ bus-num:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: SoC-specific identifier for the SPI controller
+
+ little-endian: true
+ big-endian: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - spi-num-chipselects
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ spi@...0000 {
+ compatible = "fsl,ls1028a-dspi", "fsl,ls1021a-v1.0-dspi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0 0x2100000 0x0 0x10000>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "dspi";
+ clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(2)>;
+ dmas = <&edma0 0 62>, <&edma0 0 60>;
+ dma-names = "tx", "rx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dspi0_1>;
+ spi-num-chipselects = <4>;
+ little-endian;
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <10000000>;
+ fsl,spi-cs-sck-delay = <100>;
+ fsl,spi-sck-cs-delay = <100>;
+ reg = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
deleted file mode 100644
index 30a79da9c039..000000000000
--- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-ARM Freescale DSPI controller
-
-Required properties:
-- compatible : must be one of:
- "fsl,vf610-dspi",
- "fsl,ls1021a-v1.0-dspi",
- "fsl,ls1012a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls1028a-dspi",
- "fsl,ls1043a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls1046a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls1088a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls2080a-dspi" (optionally followed by "fsl,ls2085a-dspi"),
- "fsl,ls2085a-dspi",
- "fsl,lx2160a-dspi",
-- reg : Offset and length of the register set for the device
-- interrupts : Should contain SPI controller interrupt
-- clocks: from common clock binding: handle to dspi clock.
-- clock-names: from common clock binding: Shall be "dspi".
-- pinctrl-0: pin control group to be used for this controller.
-- pinctrl-names: must contain a "default" entry.
-- spi-num-chipselects : the number of the chipselect signals.
-
-Optional property:
-- big-endian: If present the dspi device's registers are implemented
- in big endian mode.
-- bus-num : the slave chip chipselect signal number.
-
-Optional SPI slave node properties:
-- fsl,spi-cs-sck-delay: a delay in nanoseconds between activating chip
- select and the start of clock signal, at the start of a transfer.
-- fsl,spi-sck-cs-delay: a delay in nanoseconds between stopping the clock
- signal and deactivating chip select, at the end of a transfer.
-
-Example:
-
-dspi0@...2c000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,vf610-dspi";
- reg = <0x4002c000 0x1000>;
- interrupts = <0 67 0x04>;
- clocks = <&clks VF610_CLK_DSPI0>;
- clock-names = "dspi";
- spi-num-chipselects = <5>;
- bus-num = <0>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_dspi0_1>;
- big-endian;
-
- sflash: at26df081a@0 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "atmel,at26df081a";
- spi-max-frequency = <16000000>;
- spi-cpol;
- spi-cpha;
- reg = <0>;
- linux,modalias = "m25p80";
- modal = "at26df081a";
- fsl,spi-cs-sck-delay = <100>;
- fsl,spi-sck-cs-delay = <50>;
- };
-};
-
-
diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
index dca677f9e1b9..a475e757f8da 100644
--- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
@@ -101,6 +101,7 @@ properties:
# The controller specific properties go here.
allOf:
- $ref: cdns,qspi-nor-peripheral-props.yaml#
+ - $ref: fsl,spi-fsl-dspi-peripheral-props.yaml#
- $ref: samsung,spi-peripheral-props.yaml#
- $ref: nvidia,tegra210-quad-peripheral-props.yaml#
diff --git a/MAINTAINERS b/MAINTAINERS
index c242098a34f9..c75ae49c85b5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8160,7 +8160,8 @@ FREESCALE DSPI DRIVER
M: Vladimir Oltean <olteanv@...il.com>
L: linux-spi@...r.kernel.org
S: Maintained
-F: Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
+F: Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi.yaml
+F: Documentation/devicetree/bindings/spi/fsl,spi-fsl-dspi-peripheral-props.yaml
F: drivers/spi/spi-fsl-dspi.c
F: include/linux/spi/spi-fsl-dspi.h
--
2.34.1
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