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Message-Id: <20230415-mmc-hi3798mv200-v1-3-db5b91d939d4@outlook.com>
Date: Sat, 15 Apr 2023 22:18:46 +0800
From: Yang Xiwen via B4 Relay
<devnull+forbidden405.outlook.com@...nel.org>
To: Ulf Hansson <ulf.hansson@...aro.org>,
Jaehoon Chung <jh80.chung@...sung.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Yang Xiwen <forbidden405@...look.com>
Cc: linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH RFC 3/3] binding: mmc: hi3798cv200-dw-mshc: convert to YAML
and rename to histb-dw-mshc, add compatible of hi3798mv200
From: Yang Xiwen <forbidden405@...look.com>
Hi3798MV200 has an extra clock, also document it here.
Signed-off-by: Yang Xiwen <forbidden405@...look.com>
---
.../bindings/mmc/hi3798cv200-dw-mshc.txt | 40 ----------
.../devicetree/bindings/mmc/histb-dw-mshc.yaml | 90 ++++++++++++++++++++++
2 files changed, 90 insertions(+), 40 deletions(-)
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 a0693b7145f2a..0000000000000
--- 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@...0000 {
- 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/histb-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/histb-dw-mshc.yaml
new file mode 100644
index 0000000000000..05a435185e9da
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/histb-dw-mshc.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/histb-dw-mshc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:
+ Hisilicon Hi3798CV200 specific extensions to the Synopsys Designware Mobile
+ Storage Host Controller
+
+maintainers:
+ - Yang Xiwen <forbidden405@...look.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#"
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: hisilicon,hi3798mv200-dw-mshc
+ then:
+ properties:
+ clocks:
+ minItems: 5
+
+ clock-names:
+ minItems: 5
+
+properties:
+ compatible:
+ enum:
+ - hisilicon,hi3798cv200-dw-mshc
+ - hisilicon,hi3798mv200-dw-mshc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 4
+ maxItems: 5
+ description: A list of phandles for the clocks listed in clock-names
+
+ clock-names:
+ minItems: 4
+ items:
+ - const: ciu
+ - const: biu
+ - const: ciu-sample
+ - const: ciu-drive
+ - const: sap-dll-mode
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ emmc: mmc@...0000 {
+ compatible = "hisilicon,hi3798cv200-dw-mshc";
+ reg = <0x9830000 0x10000>;
+ interrupts = <35>;
+ clocks = <&crg 1>,
+ <&crg 2>,
+ <&crg 3>,
+ <&crg 4>;
+ 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>;
+ };
+
--
2.39.2
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