the resolution of 480 * 272 LCD whether support the resolution of 320 * 240 LCD,

Hi,I meet a problem now.My board is am335x EVM,and the lcd is 4.3 inch,the pixels is 480*272.When I set it to 320*240,the system can access normaly.But the problem is that the touchsreen is not use appropriatly. I change the parameters in the boardam335xevm.c, but it seems not work.

static struct tsc_data am335x_touchscreen_data = {
.wires = 4,
.x_max = 0x0fff,
.y_max = 0x0fff,
.x_plate_resistance = 200,
};

I change the values of x_max and y_max , which is get from ti_tscadc.c, that I add two printk function in it.

 I do not know the resolution of 480 * 272 LCD whether support the resolution of 320 * 240 LCD,thanks for your reply!