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author | Zhen Lei <thunder.leizhen@huawei.com> | 2020-12-08 15:46:41 +0300 |
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committer | Philipp Zabel <p.zabel@pengutronix.de> | 2021-01-08 15:00:59 +0300 |
commit | f2ad9bfd4dda69175b8ed2c38f115c8138239780 (patch) | |
tree | acd8a134cad0051f0014b5b61da7cb9bd9a8e4d5 | |
parent | 0cafb846a326e838d41db22f96e625c0ad0b6fc8 (diff) | |
download | linux-f2ad9bfd4dda69175b8ed2c38f115c8138239780.tar.xz |
dt-bindings: reset: convert Hisilicon reset controller bindings to json-schema
Convert the Hisilicon reset controller binding to DT schema format using
json-schema.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
-rw-r--r-- | Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt | 44 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml | 77 |
2 files changed, 77 insertions, 44 deletions
diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt deleted file mode 100644 index aefd26710f9e..000000000000 --- a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt +++ /dev/null @@ -1,44 +0,0 @@ -Hisilicon System Reset Controller -====================================== - -Please also refer to reset.txt in this directory for common reset -controller binding usage. - -The reset controller registers are part of the system-ctl block on -hi3660 and hi3670 SoCs. - -Required properties: -- compatible: should be one of the following: - "hisilicon,hi3660-reset" for HI3660 - "hisilicon,hi3670-reset", "hisilicon,hi3660-reset" for HI3670 -- hisilicon,rst-syscon: phandle of the reset's syscon. -- #reset-cells : Specifies the number of cells needed to encode a - reset source. The type shall be a <u32> and the value shall be 2. - - Cell #1 : offset of the reset assert control - register from the syscon register base - offset + 4: deassert control register - offset + 8: status control register - Cell #2 : bit position of the reset in the reset control register - -Example: - iomcu: iomcu@ffd7e000 { - compatible = "hisilicon,hi3660-iomcu", "syscon"; - reg = <0x0 0xffd7e000 0x0 0x1000>; - }; - - iomcu_rst: iomcu_rst_controller { - compatible = "hisilicon,hi3660-reset"; - hisilicon,rst-syscon = <&iomcu>; - #reset-cells = <2>; - }; - -Specifying reset lines connected to IP modules -============================================== -example: - - i2c0: i2c@..... { - ... - resets = <&iomcu_rst 0x20 3>; /* offset: 0x20; bit: 3 */ - ... - }; diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml new file mode 100644 index 000000000000..9bf40952e5b7 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/hisilicon,hi3660-reset.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Hisilicon System Reset Controller + +maintainers: + - Wei Xu <xuwei5@hisilicon.com> + +description: | + Please also refer to reset.txt in this directory for common reset + controller binding usage. + The reset controller registers are part of the system-ctl block on + hi3660 and hi3670 SoCs. + +properties: + compatible: + oneOf: + - items: + - const: hisilicon,hi3660-reset + - items: + - const: hisilicon,hi3670-reset + - const: hisilicon,hi3660-reset + + hisilicon,rst-syscon: + description: phandle of the reset's syscon. + $ref: /schemas/types.yaml#/definitions/phandle + + '#reset-cells': + description: | + Specifies the number of cells needed to encode a reset source. + Cell #1 : offset of the reset assert control register from the syscon + register base + offset + 4: deassert control register + offset + 8: status control register + Cell #2 : bit position of the reset in the reset control register + const: 2 + +required: + - compatible + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/hi3660-clock.h> + + iomcu: iomcu@ffd7e000 { + compatible = "hisilicon,hi3660-iomcu", "syscon"; + reg = <0xffd7e000 0x1000>; + }; + + iomcu_rst: iomcu_rst_controller { + compatible = "hisilicon,hi3660-reset"; + hisilicon,rst-syscon = <&iomcu>; + #reset-cells = <2>; + }; + + /* Specifying reset lines connected to IP modules */ + i2c@ffd71000 { + compatible = "snps,designware-i2c"; + reg = <0xffd71000 0x1000>; + interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>; + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <400000>; + clocks = <&crg_ctrl HI3660_CLK_GATE_I2C0>; + resets = <&iomcu_rst 0x20 3>; + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pmx_func &i2c0_cfg_func>; + status = "disabled"; + }; +... |