Shawn Guo wrote:

On Wed, Aug 15, 2012 at 06:31:48PM +0800, Hui Wang wrote:
  

quoted

i.MX6Q sabrelite board uses i2c3 to connect an eeti egalax
touchscreen controller, add it as an i2c slave device in the dts.

Signed-off-by: Hui Wang <redacted>
---
 arch/arm/boot/dts/imx6q-sabrelite.dts |   16 ++++++++++++++++
 arch/arm/boot/dts/imx6q.dtsi          |    7 +++++++
 2 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
index 72f30f3..4a68e1f 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts

@@ -54,6 +54,7 @@
 							   144  0x80000000	/* MX6Q_PAD_EIM_D22__GPIO_3_22 */
 							   121  0x80000000	/* MX6Q_PAD_EIM_D19__GPIO_3_19 */
 							   953  0x80000000	/* MX6Q_PAD_GPIO_0__CCM_CLKO */
+							   972  0x10		/* MX6Q_PAD_GPIO_9__GPIO_1_9 */
 							   >;
 					};
 				};

@@ -115,6 +116,21 @@
 					VDDIO-supply = <&reg_3p3v>;
 				};
 			};
+
+			i2c at 021a8000 { /* I2C3 */
+				status = "okay";
+				clock-frequency = <100000>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_i2c3_1>;
+
+				egalax_ts at 04 {
+					compatible = "eeti,egalax_ts";
+					reg = <0x04>;
+					interrupt-parent = <&gpio1>;
+					interrupts = <9 2>;
    

So you take this interrupt as falling-edge, while I see IRQF_TRIGGER_LOW
is used in driver with request_threaded_irq call.

Regards,
Shawn

  

Yes, you are right. Should be 8 instead of 2.

Regards,
Hui.