diff options
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-nomadik.txt | 23 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml | 113 | ||||
| -rw-r--r-- | MAINTAINERS | 2 |
3 files changed, 114 insertions, 24 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt b/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt deleted file mode 100644 index 72065b0ff680..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt +++ /dev/null @@ -1,23 +0,0 @@ -I2C for Nomadik based systems - -Required (non-standard) properties: - - Nil - -Recommended (non-standard) properties: - - clock-frequency : Maximum bus clock frequency for the device - -Optional (non-standard) properties: - - Nil - -Example : - -i2c@80004000 { - compatible = "stericsson,db8500-i2c", "st,nomadik-i2c"; - reg = <0x80004000 0x1000>; - interrupts = <0 21 0x4>; - #address-cells = <1>; - #size-cells = <0>; - v-i2c-supply = <&db8500_vape_reg>; - - clock-frequency = <400000>; -}; diff --git a/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml new file mode 100644 index 000000000000..eec502c57047 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml @@ -0,0 +1,113 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/st,nomadik-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ST Microelectronics Nomadik I2C Bindings + +description: The Nomadik I2C host controller began its life in the ST + Microelectronics STn8800 SoC, and was then inherited into STn8810 and + STn8815. It was part of the prototype STn8500 which then became ST-Ericsson + DB8500 after the merge of these two companies wireless divisions. + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +# Need a custom select here or 'arm,primecell' will match on lots of nodes +select: + properties: + compatible: + contains: + enum: + - st,nomadik-i2c + required: + - compatible + +properties: + compatible: + oneOf: + # The variant found in STn8815 + - items: + - const: st,nomadik-i2c + - const: arm,primecell + # The variant found in DB8500 + - items: + - const: stericsson,db8500-i2c + - const: st,nomadik-i2c + - const: arm,primecell + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + oneOf: + # Clock name in STn8815 + - items: + - const: mclk + - const: apb_pclk + # Clock name in DB8500 + - items: + - const: i2cclk + - const: apb_pclk + + resets: + maxItems: 1 + + clock-frequency: + minimum: 1 + maximum: 400000 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/reset/stericsson,db8500-prcc-reset.h> + #include <dt-bindings/arm/ux500_pm_domains.h> + i2c@80004000 { + compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell"; + reg = <0x80004000 0x1000>; + interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>; + + #address-cells = <1>; + #size-cells = <0>; + v-i2c-supply = <&db8500_vape_reg>; + + clock-frequency = <400000>; + clocks = <&prcc_kclk 3 3>, <&prcc_pclk 3 3>; + clock-names = "i2cclk", "apb_pclk"; + power-domains = <&pm_domains DOMAIN_VAPE>; + resets = <&prcc_reset DB8500_PRCC_3 DB8500_PRCC_3_RESET_I2C0>; + }; + + i2c@101f8000 { + compatible = "st,nomadik-i2c", "arm,primecell"; + reg = <0x101f8000 0x1000>; + interrupt-parent = <&vica>; + interrupts = <20>; + clock-frequency = <100000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&i2c0clk>, <&pclki2c0>; + clock-names = "mclk", "apb_pclk"; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index a6d3bd9d2a8d..3496a26ad1d0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2416,7 +2416,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git F: Documentation/devicetree/bindings/arm/ste-* F: Documentation/devicetree/bindings/arm/ux500.yaml F: Documentation/devicetree/bindings/arm/ux500/ -F: Documentation/devicetree/bindings/i2c/i2c-nomadik.txt +F: Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml F: arch/arm/boot/dts/ste-* F: arch/arm/mach-nomadik/ F: arch/arm/mach-ux500/ |