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Date: Tue, 9 Nov 2021 15:58:25 +0800
From: "LH.Kuo" <lhjeff911@...il.com>
To: p.zabel@...gutronix.de, daniel.thompson@...aro.org,
lee.jones@...aro.org, u.kleine-koenig@...gutronix.de,
ulf.hansson@...aro.org, robh+dt@...nel.org,
linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
devicetree@...r.kernel.org
Cc: qinjian@...lus1.com, wells.lu@...plus.com,
"LH.Kuo" <lh.kuo@...plus.com>
Subject: [PATCH v2 2/2] devicetree bindings mmc Add bindings doc for Sunplus SP7021
Add devicetree bindings mmc Add bindings doc for Sunplus SP7021
Signed-off-by: LH.Kuo <lh.kuo@...plus.com>
---
Changes in v2:
- Addressed all comments from Mr. Philipp Zabel
- Modified the structure and register access method.
- Modifiedthe path about MAINTAINERS. ( wrong messages PATH in v1).
.../devicetree/bindings/mmc/sunplus-sd2.yaml | 82 ++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 83 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/sunplus-sd2.yaml
diff --git a/Documentation/devicetree/bindings/mmc/sunplus-sd2.yaml b/Documentation/devicetree/bindings/mmc/sunplus-sd2.yaml
new file mode 100644
index 0000000..95dc0bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sunplus-sd2.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/sunplus-sd2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SD/SDIO controller
+
+maintainers:
+ - lh.kuo <lh.kuo@...plus.com>
+
+properties:
+ compatible:
+ enum:
+ - sunplus,sp7021-card1
+ - sunplus,sp7021-sdio
+
+ reg:
+ items:
+ - description: Base address and length of the SD/SDIO registers
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ pinctrl-names:
+ description:
+ A pinctrl state named "default" must be defined.
+ const: default
+
+ pinctrl-0:
+ description:
+ A phandle to the default pinctrl state.
+
+ max-frequency: true
+
+allOf:
+ - $ref: "mmc-controller.yaml"
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - resets
+ - pinctrl-names
+ - pinctrl-0
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sp-sp7021.h>
+ #include <dt-bindings/reset/sp-sp7021.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ mmc1: mmc@...03e80 {
+ compatible = "sunplus,sp7021-card1";
+ reg = <0x9c003e80 0x280>;
+ interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clkc CARD_CTL1>;
+ resets = <&rstc RST_CARD_CTL1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_mux &mmc1_mux_cd>;
+ max-frequency = <52000000>;
+ };
+ sdio: mmc@...08400 {
+ compatible = "sunplus,sp7021-sdio";
+ reg = <0x9c008400 0x280>;
+ interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clkc CARD_CTL1>;
+ resets = <&rstc RST_CARD_CTL1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_sdio>;
+ max-frequency = <52000000>;
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 2746084..e653a1d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18193,6 +18193,7 @@ SUNPLUS SD/SDIO HOST CONTROLLER INTERFACE DRIVER
M: LH Kuo <lh.kuo@...plus.com>
L: linux-mmc@...r.kernel.org
S: Maintained
+F: Documentation/devicetree/bindings/mmc/sunplus-sd2.yaml
F: drivers/mmc/host/sunplus_sd2.*
SUPERH
--
2.7.4
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