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Message-Id: <20240613-ls_waring_esdhc-v5-2-36644e2fe21c@nxp.com>
Date: Thu, 13 Jun 2024 10:32:06 -0400
From: Frank Li <Frank.Li@....com>
To: Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>
Cc: linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
imx@...ts.linux.dev, Frank Li <Frank.Li@....com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v5 2/3] dt-bindings: mmc: Convert fsl-esdhc.txt to yaml
Convert layerscape fsl-esdhc binding doc from txt to yaml format.
Addtional change during convert:
- Deprecate "sdhci,wp-inverted", "sdhci,1-bit-only".
- Add "reg" and "interrupts" property.
- Change example "sdhci@...00" to "mmc@...00".
- Compatible string require fsl,<chip>-esdhc followed by fsl,esdhc to match
most existed dts file.
- Set clock-frequency to 100mhz in example.
- clock-frequency is not required now.
- Allow dma-coherence
- Add clocks
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Frank Li <Frank.Li@....com>
---
Change from v4 to v5
- Add Krzysztof Kozlowski's review tag
Change from v3 to v4
- Remove clock-frequency from required
- Add dma-coherence
- Add clocks
- Not add Krzysztof Kozlowski review tag because some additional change.
Change from v2 to v3
- add minItems and maxItems for voltage-ranges
Change from v1 to v2
- use filename fsl,esdhc.yaml
- Add clock-frequency to required
- change clock-frequency to 100mhz in example
pass dt_binding_check
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j8 dt_binding_check DT_SCHEMA_FILES=fsl,esdhc.yaml
SCHEMA Documentation/devicetree/bindings/processed-schema.json
CHKDT Documentation/devicetree/bindings
LINT Documentation/devicetree/bindings
DTEX Documentation/devicetree/bindings/mmc/fsl-ls-esdhc.example.dts
DTC_CHK Documentation/devicetree/bindings/mmc/fsl-ls-esdhc.example.dtb
---
.../devicetree/bindings/mmc/fsl,esdhc.yaml | 105 +++++++++++++++++++++
.../devicetree/bindings/mmc/fsl-esdhc.txt | 52 ----------
2 files changed, 105 insertions(+), 52 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/fsl,esdhc.yaml b/Documentation/devicetree/bindings/mmc/fsl,esdhc.yaml
new file mode 100644
index 0000000000000..b86ffb53b18b5
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/fsl,esdhc.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/fsl,esdhc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Enhanced Secure Digital Host Controller (eSDHC)
+
+description:
+ The Enhanced Secure Digital Host Controller provides an interface
+ for MMC, SD, and SDIO types of memory cards.
+
+maintainers:
+ - Frank Li <Frank.Li@....com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - fsl,mpc8536-esdhc
+ - fsl,mpc8378-esdhc
+ - fsl,p2020-esdhc
+ - fsl,p4080-esdhc
+ - fsl,t1040-esdhc
+ - fsl,t4240-esdhc
+ - fsl,ls1012a-esdhc
+ - fsl,ls1028a-esdhc
+ - fsl,ls1088a-esdhc
+ - fsl,ls1043a-esdhc
+ - fsl,ls1046a-esdhc
+ - fsl,ls2080a-esdhc
+ - const: fsl,esdhc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: specifies eSDHC base clock frequency.
+
+ sdhci,wp-inverted:
+ $ref: /schemas/types.yaml#/definitions/flag
+ deprecated: true
+ description:
+ specifies that eSDHC controller reports
+ inverted write-protect state; New devices should use the generic
+ "wp-inverted" property.
+
+ sdhci,1-bit-only:
+ $ref: /schemas/types.yaml#/definitions/flag
+ deprecated: true
+ description:
+ specifies that a controller can only handle
+ 1-bit data transfers. New devices should use the generic
+ "bus-width = <1>" property.
+
+ sdhci,auto-cmd12:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ specifies that a controller can only handle auto CMD12.
+
+ voltage-ranges:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: specifies minimum slot voltage (mV).
+ - description: specifies maximum slot voltage (mV).
+ minItems: 1
+ maxItems: 8
+
+ dma-coherent: true
+
+ little-endian:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ If the host controller is little-endian mode, specify
+ this property. The default endian mode is big-endian.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - $ref: sdhci-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ mmc@...00 {
+ compatible = "fsl,mpc8378-esdhc", "fsl,esdhc";
+ reg = <0x2e000 0x1000>;
+ interrupts = <42 0x8>;
+ interrupt-parent = <&ipic>;
+ /* Filled in by U-Boot */
+ clock-frequency = <100000000>;
+ voltage-ranges = <3300 3300>;
+ };
diff --git a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
deleted file mode 100644
index edb8cadb95412..0000000000000
--- a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* Freescale Enhanced Secure Digital Host Controller (eSDHC)
-
-The Enhanced Secure Digital Host Controller provides an interface
-for MMC, SD, and SDIO types of memory cards.
-
-This file documents differences between the core properties described
-by mmc.txt and the properties used by the sdhci-esdhc driver.
-
-Required properties:
- - compatible : should be "fsl,esdhc", or "fsl,<chip>-esdhc".
- Possible compatibles for PowerPC:
- "fsl,mpc8536-esdhc"
- "fsl,mpc8378-esdhc"
- "fsl,p2020-esdhc"
- "fsl,p4080-esdhc"
- "fsl,t1040-esdhc"
- "fsl,t4240-esdhc"
- Possible compatibles for ARM:
- "fsl,ls1012a-esdhc"
- "fsl,ls1028a-esdhc"
- "fsl,ls1088a-esdhc"
- "fsl,ls1043a-esdhc"
- "fsl,ls1046a-esdhc"
- "fsl,ls2080a-esdhc"
- - clock-frequency : specifies eSDHC base clock frequency.
-
-Optional properties:
- - sdhci,wp-inverted : specifies that eSDHC controller reports
- inverted write-protect state; New devices should use the generic
- "wp-inverted" property.
- - sdhci,1-bit-only : specifies that a controller can only handle
- 1-bit data transfers. New devices should use the generic
- "bus-width = <1>" property.
- - sdhci,auto-cmd12: specifies that a controller can only handle auto
- CMD12.
- - voltage-ranges : two cells are required, first cell specifies minimum
- slot voltage (mV), second cell specifies maximum slot voltage (mV).
- Several ranges could be specified.
- - little-endian : If the host controller is little-endian mode, specify
- this property. The default endian mode is big-endian.
-
-Example:
-
-sdhci@...00 {
- compatible = "fsl,mpc8378-esdhc", "fsl,esdhc";
- reg = <0x2e000 0x1000>;
- interrupts = <42 0x8>;
- interrupt-parent = <&ipic>;
- /* Filled in by U-Boot */
- clock-frequency = <0>;
- voltage-ranges = <3300 3300>;
-};
--
2.34.1
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