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 <sergiu.moga@microchip.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220310114553.184763-3-sergiu.moga@microchip.com

1 files changed, 0 insertions, 82 deletions

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>;
-	};
-};