summaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi')
-rw-r--r--arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi25
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";