diff options
Diffstat (limited to 'arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi b/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi index 20cc940f5f91..82f87cdcd164 100644 --- a/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi +++ b/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi @@ -41,6 +41,7 @@ */ #include "sunxi-reference-design-tablet.dtsi" +#include <dt-bindings/interrupt-controller/irq.h> #include <dt-bindings/pwm/pwm.h> / { @@ -84,6 +85,23 @@ }; &i2c1 { + /* + * The gsl1680 is rated at 400KHz and it will not work reliable at + * 100KHz, this has been confirmed on multiple different q8 tablets. + * All other devices on this bus are also rated for 400KHz. + */ + clock-frequency = <400000>; + + touchscreen: touchscreen { + interrupt-parent = <&pio>; + interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>; /* EINT11 (PG11) */ + pinctrl-names = "default"; + pinctrl-0 = <&ts_power_pin>; + power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */ + /* Tablet dts must provide reg and compatible */ + status = "disabled"; + }; + pcf8563: rtc@51 { compatible = "nxp,pcf8563"; reg = <0x51>; @@ -125,6 +143,13 @@ allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; }; + ts_power_pin: ts_power_pin { + pins = "PB3"; + function = "gpio_out"; + drive-strength = <10>; + bias-disable; + }; + usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 { allwinner,pins = "PG1"; allwinner,function = "gpio_in"; |