Hello all,
We are working in OMAP3530 processor. We have changed the LCD size
from 480 x 272 to 800 x 480 .
We have changed the front panel parameters accordingly and we are able
to get Android screen properly.
Currently we are working in touchscreen . We are using ads7846 touch
screen controller.
We have tested Touch screen through tslib calibration after linux
booting. Its able to sense it.
But in Android it should not able to sense the proper positions.
we would like to know , how the xmin, xmax, ymin and ymax parameter
values are calculated for the new LCD resolution?
ie For 480 x 272 the following values are given in the board file
struct ads7846_platform_data ads7846_config = {
//#ifdef CONFIG_ADS_SCALED_EV
.x_min = 0,
.y_min = 0,
.x_max = 3800,
.y_max = 3800,
//#else
// .x_max = 0x0fff,
// .y_max = 0x0fff,
//#endif
.x_plate_ohms = 180,
.pressure_max = 255,
.debounce_max = 20,
.debounce_tol = 10,
.debounce_rep = 1,
.get_pendown_state = ads7846_get_pendown_state,
.keep_vref_on = 1,
.settle_delay_usecs = 150,
};
We would like to know for the new LCD 800 x 480 , how this value
should be calculated?
---Gokul
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