From 7ea75dd386be6fc15763c4adba67b35e5f051b70 Mon Sep 17 00:00:00 2001 From: Sergiu Moga Date: Thu, 10 Mar 2022 13:45:52 +0200 Subject: dt-bindings: i2c: convert i2c-at91 to json-schema Convert I2C binding for Atmel/Microchip SoCs to Device Tree Schema format. Signed-off-by: Sergiu Moga Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20220310114553.184763-3-sergiu.moga@microchip.com --- Documentation/devicetree/bindings/i2c/i2c-at91.txt | 82 ---------------------- 1 file changed, 82 deletions(-) delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-at91.txt (limited to 'Documentation/devicetree/bindings/i2c/i2c-at91.txt') diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt deleted file mode 100644 index 2015f50aed0f..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt +++ /dev/null @@ -1,82 +0,0 @@ -I2C for Atmel platforms - -Required properties : -- compatible : Must be one of: - "atmel,at91rm9200-i2c", - "atmel,at91sam9261-i2c", - "atmel,at91sam9260-i2c", - "atmel,at91sam9g20-i2c", - "atmel,at91sam9g10-i2c", - "atmel,at91sam9x5-i2c", - "atmel,sama5d4-i2c", - "atmel,sama5d2-i2c", - "microchip,sam9x60-i2c". -- reg: physical base address of the controller and length of memory mapped - region. -- interrupts: interrupt number to the cpu. -- #address-cells = <1>; -- #size-cells = <0>; -- clocks: phandles to input clocks. - -Optional properties: -- clock-frequency: Desired I2C bus frequency in Hz, otherwise defaults to 100000 -- dmas: A list of two dma specifiers, one for each entry in dma-names. -- dma-names: should contain "tx" and "rx". -- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO - capable I2C controllers. -- i2c-sda-hold-time-ns: TWD hold time, only available for: - "atmel,sama5d4-i2c", - "atmel,sama5d2-i2c", - "microchip,sam9x60-i2c". -- scl-gpios: specify the gpio related to SCL pin -- sda-gpios: specify the gpio related to SDA pin -- pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c - bus recovery, call it "gpio" state -- Child nodes conforming to i2c bus binding - - -Examples : - -i2c0: i2c@fff84000 { - compatible = "atmel,at91sam9g20-i2c"; - reg = <0xfff84000 0x100>; - interrupts = <12 4 6>; - #address-cells = <1>; - #size-cells = <0>; - clocks = <&twi0_clk>; - clock-frequency = <400000>; - - 24c512@50 { - compatible = "atmel,24c512"; - reg = <0x50>; - pagesize = <128>; - } -} - -i2c0: i2c@f8034600 { - compatible = "atmel,sama5d2-i2c"; - reg = <0xf8034600 0x100>; - interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>; - dmas = <&dma0 - (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)) - AT91_XDMAC_DT_PERID(11)>, - <&dma0 - (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)) - AT91_XDMAC_DT_PERID(12)>; - dma-names = "tx", "rx"; - #address-cells = <1>; - #size-cells = <0>; - clocks = <&flx0>; - atmel,fifo-size = <16>; - i2c-sda-hold-time-ns = <336>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&pinctrl_i2c0>; - pinctrl-1 = <&pinctrl_i2c0_gpio>; - sda-gpios = <&pioA 30 GPIO_ACTIVE_HIGH>; - scl-gpios = <&pioA 31 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; - - wm8731: wm8731@1a { - compatible = "wm8731"; - reg = <0x1a>; - }; -}; -- cgit