diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2015-08-27 18:20:45 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-10-13 01:00:37 +0300 |
| commit | 4fbdc6ab836f54e7559a637d9db44be7535c0889 (patch) | |
| tree | 5e12cb4ba957ea7194b80b6d273f181c03a2b6ea /arch/arm/boot/dts/dra7-evm.dts | |
| parent | a00e368c197b236ec76e6684a6459cee98335e14 (diff) | |
| download | linux-4fbdc6ab836f54e7559a637d9db44be7535c0889.tar.xz | |
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: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/dra7-evm.dts')
| -rw-r--r-- | arch/arm/boot/dts/dra7-evm.dts | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index 1a66d359f3e3..d40418c8d5a3 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -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>; |