修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/Documentation/devicetree/bindings/i2c/i2c-at91.txt
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@@ -1,9 +1,16 @@
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 I2C for Atmel platforms
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 Required properties :
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-- compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c",
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-     "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c",
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-     "atmel,at91sam9x5-i2c", "atmel,sama5d4-i2c" or "atmel,sama5d2-i2c"
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+- compatible : Must be one of:
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+	"atmel,at91rm9200-i2c",
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+	"atmel,at91sam9261-i2c",
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+	"atmel,at91sam9260-i2c",
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+	"atmel,at91sam9g20-i2c",
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+	"atmel,at91sam9g10-i2c",
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+	"atmel,at91sam9x5-i2c",
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+	"atmel,sama5d4-i2c",
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+	"atmel,sama5d2-i2c",
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+	"microchip,sam9x60-i2c".
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 - reg: physical base address of the controller and length of memory mapped
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      region.
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 - interrupts: interrupt number to the cpu.
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@@ -17,9 +24,16 @@
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 - dma-names: should contain "tx" and "rx".
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 - atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO
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   capable I2C controllers.
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-- i2c-sda-hold-time-ns: TWD hold time, only available for "atmel,sama5d4-i2c"
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-  and "atmel,sama5d2-i2c".
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+- i2c-sda-hold-time-ns: TWD hold time, only available for:
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+	"atmel,sama5d4-i2c",
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+	"atmel,sama5d2-i2c",
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+	"microchip,sam9x60-i2c".
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+- scl-gpios: specify the gpio related to SCL pin
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+- sda-gpios: specify the gpio related to SDA pin
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+- pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c
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+  bus recovery, call it "gpio" state
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 - Child nodes conforming to i2c bus binding
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+
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 Examples :
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@@ -33,7 +47,7 @@
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 	clock-frequency = <400000>;
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 	24c512@50 {
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-		compatible = "24c512";
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+		compatible = "atmel,24c512";
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 		reg = <0x50>;
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 		pagesize = <128>;
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 	}
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@@ -55,6 +69,11 @@
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 	clocks = <&flx0>;
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 	atmel,fifo-size = <16>;
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 	i2c-sda-hold-time-ns = <336>;
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+	pinctrl-names = "default", "gpio";
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+	pinctrl-0 = <&pinctrl_i2c0>;
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+	pinctrl-1 = <&pinctrl_i2c0_gpio>;
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+	sda-gpios = <&pioA 30 GPIO_ACTIVE_HIGH>;
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+	scl-gpios = <&pioA 31 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
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 	wm8731: wm8731@1a {
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 		compatible = "wm8731";