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author | AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> | 2022-04-07 12:47:53 +0300 |
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committer | Rob Herring <robh@kernel.org> | 2022-04-07 21:10:21 +0300 |
commit | fe88f5f70b9f1df16eabab4a558cf5cf567a1940 (patch) | |
tree | 9846abdf24a450c37c52370663362548c88d13ad | |
parent | 2b18b93e199510429fce0f799df6418eadf9bd08 (diff) | |
download | linux-fe88f5f70b9f1df16eabab4a558cf5cf567a1940.tar.xz |
dt-bindings: i2c: convert i2c-mt65xx to json-schema
Convert I2C binding for MediaTek SoCs to Devicetree schema.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407094753.13282-1-angelogioacchino.delregno@collabora.com
-rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt | 53 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml | 118 | ||||
-rw-r--r-- | MAINTAINERS | 2 |
3 files changed, 119 insertions, 54 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt deleted file mode 100644 index 026985b8f61a..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt +++ /dev/null @@ -1,53 +0,0 @@ -* MediaTek's I2C controller - -The MediaTek's I2C controller is used to interface with I2C devices. - -Required properties: - - compatible: value should be either of the following. - "mediatek,mt2701-i2c", "mediatek,mt6577-i2c": for MediaTek MT2701 - "mediatek,mt2712-i2c": for MediaTek MT2712 - "mediatek,mt6577-i2c": for MediaTek MT6577 - "mediatek,mt6589-i2c": for MediaTek MT6589 - "mediatek,mt6797-i2c", "mediatek,mt6577-i2c": for MediaTek MT6797 - "mediatek,mt7622-i2c": for MediaTek MT7622 - "mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for MediaTek MT7623 - "mediatek,mt7629-i2c", "mediatek,mt2712-i2c": for MediaTek MT7629 - "mediatek,mt8168-i2c": for MediaTek MT8168 - "mediatek,mt8173-i2c": for MediaTek MT8173 - "mediatek,mt8183-i2c": for MediaTek MT8183 - "mediatek,mt8186-i2c": for MediaTek MT8186 - "mediatek,mt8192-i2c": for MediaTek MT8192 - "mediatek,mt8195-i2c", "mediatek,mt8192-i2c": for MediaTek MT8195 - "mediatek,mt8516-i2c", "mediatek,mt2712-i2c": for MediaTek MT8516 - - reg: physical base address of the controller and dma base, length of memory - mapped region. - - interrupts: interrupt number to the cpu. - - clock-div: the fixed value for frequency divider of clock source in i2c - module. Each IC may be different. - - clocks: clock name from clock manager - - clock-names: Must include "main" and "dma", "arb" is for multi-master that - one bus has more than two i2c controllers, if enable have-pmic need include - "pmic" extra. - -Optional properties: - - clock-frequency: Frequency in Hz of the bus when transfer, the default value - is 100000. - - mediatek,have-pmic: platform can control i2c form special pmic side. - Only mt6589 and mt8135 support this feature. - - mediatek,use-push-pull: IO config use push-pull mode. - - vbus-supply: phandle to the regulator that provides power to SCL/SDA. - -Example: - - i2c0: i2c@1100d000 { - compatible = "mediatek,mt6577-i2c"; - reg = <0x1100d000 0x70>, - <0x11000300 0x80>; - interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>; - clock-frequency = <400000>; - mediatek,have-pmic; - clock-div = <16>; - clocks = <&i2c0_ck>, <&ap_dma_ck>; - clock-names = "main", "dma"; - }; - diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml new file mode 100644 index 000000000000..16a1a3118204 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml @@ -0,0 +1,118 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/i2c-mt65xx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek I2C controller + +description: + This driver interfaces with the native I2C controller present in + various MediaTek SoCs. + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +maintainers: + - Qii Wang <qii.wang@mediatek.com> + +properties: + compatible: + oneOf: + - const: mediatek,mt2712-i2c + - const: mediatek,mt6577-i2c + - const: mediatek,mt6589-i2c + - const: mediatek,mt7622-i2c + - const: mediatek,mt8168-i2c + - const: mediatek,mt8173-i2c + - const: mediatek,mt8183-i2c + - const: mediatek,mt8186-i2c + - const: mediatek,mt8192-i2c + - items: + - enum: + - mediatek,mt7629-i2c + - mediatek,mt8516-i2c + - const: mediatek,mt2712-i2c + - items: + - enum: + - mediatek,mt2701-i2c + - mediatek,mt6797-i2c + - mediatek,mt7623-i2c + - const: mediatek,mt6577-i2c + - items: + - enum: + - mediatek,mt8195-i2c + - const: mediatek,mt8192-i2c + + reg: + items: + - description: Physical base address + - description: DMA base address + + interrupts: + maxItems: 1 + + clocks: + minItems: 2 + items: + - description: Main clock for I2C bus + - description: Clock for I2C via DMA + - description: Bus arbitrator clock + - description: Clock for I2C from PMIC + + clock-names: + minItems: 2 + items: + - const: main + - const: dma + - const: arb + - const: pmic + + clock-div: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Frequency divider of clock source in I2C module + + clock-frequency: + default: 100000 + description: + SCL frequency to use (in Hz). If omitted, 100kHz is used. + + mediatek,have-pmic: + description: Platform controls I2C from PMIC side + type: boolean + + mediatek,use-push-pull: + description: Use push-pull mode I/O config + type: boolean + + vbus-supply: + description: Phandle to the regulator providing power to SCL/SDA + +required: + - compatible + - reg + - clocks + - clock-names + - clock-div + - interrupts + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c0: i2c@1100d000 { + compatible = "mediatek,mt6577-i2c"; + reg = <0x1100d000 0x70>, <0x11000300 0x80>; + interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>; + clocks = <&i2c0_ck>, <&ap_dma_ck>; + clock-names = "main", "dma"; + clock-div = <16>; + clock-frequency = <400000>; + mediatek,have-pmic; + + #address-cells = <1>; + #size-cells = <0>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 4beb2002c904..364ddad11c87 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12356,7 +12356,7 @@ MEDIATEK I2C CONTROLLER DRIVER M: Qii Wang <qii.wang@mediatek.com> L: linux-i2c@vger.kernel.org S: Maintained -F: Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt +F: Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml F: drivers/i2c/busses/i2c-mt65xx.c MEDIATEK IOMMU DRIVER |