Tool/software: Linux
Hi TI Experts,
We developed AM3358 based custom board and interfaced the SSD2543 Touch screen controller in I2C1 bus.
Here is the dts code.
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
status = "okay";
clock-frequency = <400000>;
ssd2543: ssd2543@48 {
compatible = "solomon,ssd2543-ts";
reg = <0x48>;
pinctrl-names = "default";
interrupt-parent = <&gpio1>;
interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
irq-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
};
};
Log:
[ 276.990439] sched: RT throttling activated
[ 278.000674] omap_i2c 4802a000.i2c: controller timed out
[ 278.000674] omap_i2c 4802a000.i2c: controller timed out
[ 306.560749] omap_i2c 44e0b000.i2c: controller timed out
[ 306.566605] omap_i2c 4802a000.i2c: controller timed out
Touch screen works okay and when we use QT touch test apps which are available in Matrix App, getting "omap_i2c 4802a000.i2c: controller timed out" message and board is completely hang and need to reset the board every time.
BTW, we are using the very latest TI SDK, kernel version is 4.14.
Reference driver:
https://github.com/patrickhwood/linux/blob/kk4.4.2_1.0.0-ga-uib/drivers/input/touchscreen/ssd2543.c
Can you please tell us whats the problem here.
This issue was stopped our production and marked as showstopper bug, can you please help to solve the issue asap.