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/linux/Documentation/devicetree/bindings/auxdisplay/
H A Dhit,hd44780.yaml17 expander boards based on the PCF8574 available for these displays. For
107 pcf8574: gpio-expander@27 {
108 compatible = "nxp,pcf8574";
119 data-gpios = <&pcf8574 4 GPIO_ACTIVE_HIGH>,
120 <&pcf8574 5 GPIO_ACTIVE_HIGH>,
121 <&pcf8574 6 GPIO_ACTIVE_HIGH>,
122 <&pcf8574 7 GPIO_ACTIVE_HIGH>;
123 enable-gpios = <&pcf8574 2 GPIO_ACTIVE_HIGH>;
124 rs-gpios = <&pcf8574 0 GPIO_ACTIVE_HIGH>;
125 rw-gpios = <&pcf8574 1 GPIO_ACTIVE_HIGH>;
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/linux/arch/arm64/boot/dts/broadcom/stingray/
H A Dbcm958742-base.dtsi77 pcf8574: pcf8574@27 { label
/linux/drivers/input/misc/
H A Dpcf8574_keypad.c3 * Driver for a keypad w/16 buttons connected to a PCF8574 I2C I/O expander
210 MODULE_DESCRIPTION("Keypad input driver for 16 keys connected to PCF8574");
/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mn-rve-gateway.dts177 compatible = "nxp,pcf8574";
187 compatible = "nxp,pcf8574";
/linux/Documentation/devicetree/bindings/gpio/
H A Dnxp,pcf8575.yaml35 - nxp,pcf8574
/linux/sound/pci/ice1712/
H A Dews.c476 err = snd_i2c_device_create(ice->i2c, "PCF8574 (1st)", in snd_ice1712_ews_init()
481 err = snd_i2c_device_create(ice->i2c, "PCF8574 (2nd)", in snd_ice1712_ews_init()
/linux/arch/arm64/boot/dts/ti/
H A Dk3-am62x-phyboard-lyra.dtsi352 compatible = "nxp,pcf8574";
/linux/drivers/gpio/
H A Dgpio-max732x.c52 * NOTE: MAX7328/MAX7329 are drop-in replacements for PCF8574/a, so
H A DKconfig1221 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,