Add devicetree bindings mmc Add bindings doc for Sunplus SP7021 Signed-off-by: LH.Kuo <lh.kuo@xxxxxxxxxxx> --- 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@xxxxxxxxxxx> + +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@9C003e80 { + 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@9C008400 { + 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@xxxxxxxxxxx> L: linux-mmc@xxxxxxxxxxxxxxx S: Maintained +F: Documentation/devicetree/bindings/mmc/sunplus-sd2.yaml F: drivers/mmc/host/sunplus_sd2.* SUPERH -- 2.7.4
