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Message-Id: <20200222112541.573-1-yamada.masahiro@socionext.com>
Date: Sat, 22 Feb 2020 20:25:41 +0900
From: Masahiro Yamada <yamada.masahiro@...ionext.com>
To: Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, masahiroy@...nel.org,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Mark Rutland <mark.rutland@....com>,
Ulf Hansson <ulf.hansson@...aro.org>,
linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org
Subject: [PATCH] dt-bindings: mmc: Convert UniPhier SD controller to json-schema
Convert the UniPhier SD controller binding to DT schema format.
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---
If there is a better way to describe reset-names,
please let me know.
.../bindings/mmc/socionext,uniphier-sd.yaml | 99 +++++++++++++++++++
.../devicetree/bindings/mmc/uniphier-sd.txt | 55 -----------
2 files changed, 99 insertions(+), 55 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mmc/socionext,uniphier-sd.yaml
delete mode 100644 Documentation/devicetree/bindings/mmc/uniphier-sd.txt
diff --git a/Documentation/devicetree/bindings/mmc/socionext,uniphier-sd.yaml b/Documentation/devicetree/bindings/mmc/socionext,uniphier-sd.yaml
new file mode 100644
index 000000000000..cdfac9b4411b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/socionext,uniphier-sd.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/socionext,uniphier-sd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: UniPhier SD/SDIO/eMMC controller
+
+maintainers:
+ - Masahiro Yamada <yamada.masahiro@...ionext.com>
+
+properties:
+ compatible:
+ description: version 2.91, 3.1, 3.1.1, respectively
+ enum:
+ - socionext,uniphier-sd-v2.91
+ - socionext,uniphier-sd-v3.1
+ - socionext,uniphier-sd-v3.1.1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ reset-names:
+ description: |
+ There are three reset signals at maximum
+ host: mandatory for all variants
+ bridge: exist only for version 2.91
+ hw: optional. exist if eMMC hw reset line is available
+ oneOf:
+ - const: host
+ - items:
+ - const: host
+ - const: bridge
+ - items:
+ - const: host
+ - const: hw
+ - items:
+ - const: host
+ - const: bridge
+ - const: hw
+
+ resets:
+ minItems: 1
+ maxItems: 3
+
+allOf:
+ - $ref: mmc-controller.yaml
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: socionext,uniphier-sd-v2.91
+ then:
+ properties:
+ reset-names:
+ contains:
+ const: bridge
+ else:
+ properties:
+ reset-names:
+ not:
+ contains:
+ const: bridge
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - reset-names
+ - resets
+
+examples:
+ - |
+ sd: mmc@...00000 {
+ compatible = "socionext,uniphier-sd-v2.91";
+ reg = <0x5a400000 0x200>;
+ interrupts = <0 76 4>;
+ pinctrl-names = "default", "uhs";
+ pinctrl-0 = <&pinctrl_sd>;
+ pinctrl-1 = <&pinctrl_sd_uhs>;
+ clocks = <&mio_clk 0>;
+ reset-names = "host", "bridge";
+ resets = <&mio_rst 0>, <&mio_rst 3>;
+ dma-names = "rx-tx";
+ dmas = <&dmac 4>;
+ bus-width = <4>;
+ cap-sd-highspeed;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
+ };
diff --git a/Documentation/devicetree/bindings/mmc/uniphier-sd.txt b/Documentation/devicetree/bindings/mmc/uniphier-sd.txt
deleted file mode 100644
index e1d658755722..000000000000
--- a/Documentation/devicetree/bindings/mmc/uniphier-sd.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-UniPhier SD/eMMC controller
-
-Required properties:
-- compatible: should be one of the following:
- "socionext,uniphier-sd-v2.91" - IP version 2.91
- "socionext,uniphier-sd-v3.1" - IP version 3.1
- "socionext,uniphier-sd-v3.1.1" - IP version 3.1.1
-- reg: offset and length of the register set for the device.
-- interrupts: a single interrupt specifier.
-- clocks: a single clock specifier of the controller clock.
-- reset-names: should contain the following:
- "host" - mandatory for all versions
- "bridge" - should exist only for "socionext,uniphier-sd-v2.91"
- "hw" - should exist if eMMC hw reset line is available
-- resets: a list of reset specifiers, corresponding to the reset-names
-
-Optional properties:
-- pinctrl-names: if present, should contain the following:
- "default" - should exist for all instances
- "uhs" - should exist for SD instance with UHS support
-- pinctrl-0: pin control state for the default mode
-- pinctrl-1: pin control state for the UHS mode
-- dma-names: should be "rx-tx" if present.
- This property can exist only for "socionext,uniphier-sd-v2.91".
-- dmas: a single DMA channel specifier
- This property can exist only for "socionext,uniphier-sd-v2.91".
-- bus-width: see mmc.txt
-- cap-sd-highspeed: see mmc.txt
-- cap-mmc-highspeed: see mmc.txt
-- sd-uhs-sdr12: see mmc.txt
-- sd-uhs-sdr25: see mmc.txt
-- sd-uhs-sdr50: see mmc.txt
-- cap-mmc-hw-reset: should exist if reset-names contains "hw". see mmc.txt
-- non-removable: see mmc.txt
-
-Example:
-
- sd: sdhc@...00000 {
- compatible = "socionext,uniphier-sd-v2.91";
- reg = <0x5a400000 0x200>;
- interrupts = <0 76 4>;
- pinctrl-names = "default", "uhs";
- pinctrl-0 = <&pinctrl_sd>;
- pinctrl-1 = <&pinctrl_sd_uhs>;
- clocks = <&mio_clk 0>;
- reset-names = "host", "bridge";
- resets = <&mio_rst 0>, <&mio_rst 3>;
- dma-names = "rx-tx";
- dmas = <&dmac 4>;
- bus-width = <4>;
- cap-sd-highspeed;
- sd-uhs-sdr12;
- sd-uhs-sdr25;
- sd-uhs-sdr50;
- };
--
2.17.1
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