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[2/3] dt-bindings: mmc: dw-mshc-hi3798cv200: convert to YAML

Message ID 20240216-b4-mmc-hi3798mv200-v1-2-7d46db845ae6@outlook.com
State New
Headers show
Series mmc: add hi3798mv200 specific extensions of DWMMC | expand

Commit Message

Yang Xiwen via B4 Relay Feb. 15, 2024, 5:46 p.m. UTC
From: Yang Xiwen <forbidden405@outlook.com>

convert the legacy txt binding to modern YAML. No semantic change.

Signed-off-by: Yang Xiwen <forbidden405@outlook.com>
---
 .../bindings/mmc/hi3798cv200-dw-mshc.txt           | 40 ----------
 .../bindings/mmc/hi3798cv200-dw-mshc.yaml          | 86 ++++++++++++++++++++++
 2 files changed, 86 insertions(+), 40 deletions(-)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mmc/hi3798cv200-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/hi3798cv200-dw-mshc.txt
deleted file mode 100644
index a0693b7145f2..000000000000
--- a/Documentation/devicetree/bindings/mmc/hi3798cv200-dw-mshc.txt
+++ /dev/null
@@ -1,40 +0,0 @@ 
-* Hisilicon Hi3798CV200 specific extensions to the Synopsys Designware Mobile
-  Storage Host Controller
-
-Read synopsys-dw-mshc.txt for more details
-
-The Synopsys designware mobile storage host controller is used to interface
-a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core Synopsys dw mshc controller properties described
-by synopsys-dw-mshc.txt and the properties used by the Hisilicon Hi3798CV200
-specific extensions to the Synopsys Designware Mobile Storage Host Controller.
-
-Required Properties:
-- compatible: Should contain "hisilicon,hi3798cv200-dw-mshc".
-- clocks: A list of phandle + clock-specifier pairs for the clocks listed
-  in clock-names.
-- clock-names: Should contain the following:
-	"ciu" - The ciu clock described in synopsys-dw-mshc.txt.
-	"biu" - The biu clock described in synopsys-dw-mshc.txt.
-	"ciu-sample" - Hi3798CV200 extended phase clock for ciu sampling.
-	"ciu-drive"  - Hi3798CV200 extended phase clock for ciu driving.
-
-Example:
-
-	emmc: mmc@9830000 {
-		compatible = "hisilicon,hi3798cv200-dw-mshc";
-		reg = <0x9830000 0x10000>;
-		interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&crg HISTB_MMC_CIU_CLK>,
-			 <&crg HISTB_MMC_BIU_CLK>,
-			 <&crg HISTB_MMC_SAMPLE_CLK>,
-			 <&crg HISTB_MMC_DRV_CLK>;
-		clock-names = "ciu", "biu", "ciu-sample", "ciu-drive";
-		fifo-depth = <256>;
-		clock-frequency = <200000000>;
-		cap-mmc-highspeed;
-		mmc-ddr-1_8v;
-		mmc-hs200-1_8v;
-		non-removable;
-		bus-width = <8>;
-	};
diff --git a/Documentation/devicetree/bindings/mmc/hi3798cv200-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/hi3798cv200-dw-mshc.yaml
new file mode 100644
index 000000000000..5db99cd94b90
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/hi3798cv200-dw-mshc.yaml
@@ -0,0 +1,86 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/hi3798cv200-dw-mshc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:
+  Hisilicon Hi3798CV200 SoC specific extensions to the Synopsys DWMMC controller
+
+maintainers:
+  - Yang Xiwen <forbidden405@outlook.com>
+
+description:
+  The Synopsys designware mobile storage host controller is used to interface
+  a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
+  differences between the core Synopsys dw mshc controller properties described
+  by synopsys-dw-mshc.txt and the properties used by the Hisilicon Hi3798CV200
+  specific extensions to the Synopsys Designware Mobile Storage Host Controller.
+
+allOf:
+  - $ref: synopsys-dw-mshc-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - hisilicon,hi3798cv200-dw-mshc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 4
+    maxItems: 4
+    description: A list of phandles for the clocks listed in clock-names
+
+  clock-names:
+    items:
+      - const: ciu
+      - const: biu
+      - const: ciu-sample
+      - const: ciu-drive
+    description:
+      Apart from the clock-names "biu" and "ciu" two more clocks
+      "ciu-drive" and "ciu-sample" are added. They are used to
+      control the clock phases, "ciu-sample" is required for tuning
+      high speed modes.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/histb-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    emmc: mmc@9830000 {
+      compatible = "hisilicon,hi3798cv200-dw-mshc";
+      reg = <0x9830000 0x10000>;
+      interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+      clocks = <&crg HISTB_MMC_CIU_CLK>,
+               <&crg HISTB_MMC_BIU_CLK>,
+               <&crg HISTB_MMC_SAMPLE_CLK>,
+               <&crg HISTB_MMC_DRV_CLK>;
+      clock-names = "ciu", "biu", "ciu-sample", "ciu-drive";
+      resets = <&crg 0xa0 4>;
+      reset-names = "reset";
+      pinctrl-names = "default";
+      pinctrl-0 = <&emmc_pins_1 &emmc_pins_2
+                   &emmc_pins_3 &emmc_pins_4>;
+      fifo-depth = <256>;
+      clock-frequency = <200000000>;
+      cap-mmc-highspeed;
+      mmc-ddr-1_8v;
+      mmc-hs200-1_8v;
+      non-removable;
+      bus-width = <8>;
+      status = "okay";
+    };