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Commit 4fbdc6ab authored by Grygorii Strashko's avatar Grygorii Strashko Committed by Tony Lindgren
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ARM: dts: dra7-evm: add pcf8575 gpio expander (i2c1 addr 20) 



This patch adds DT definition for CF8575 GPIO pcf_lcd: gpio@20
expander which is connected to i2c bus 1 and has slave address 0x20.
It allows to control:
- tc_lcd gpios, pins p0-p3
- user leds, pins p4-p7
- control LCD panel power, p15

PCF8575 GPIO pcf_lcd: gpio@20 expander supports interrupt controller
functionality and its INT line is connected to dra7 GPIO6.11 pin.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent a00e368c

arch/arm/boot/dts/dra7-evm.dts

+11 −0
Original line number Diff line number Diff line
@@ -479,6 +479,17 @@ 
		};

	};



	pcf_lcd: gpio@20 {

		compatible = "nxp,pcf8575";

		reg = <0x20>;

		gpio-controller;

		#gpio-cells = <2>;

		interrupt-parent = <&gpio6>;

		interrupts = <11 IRQ_TYPE_EDGE_FALLING>;

		interrupt-controller;

		#interrupt-cells = <2>;

	};



	pcf_gpio_21: gpio@21 {

		compatible = "ti,pcf8575";

		reg = <0x21>;