There is a problem that fails to initialize the LCD timing controller external.
Communication speed is 400kHz.
weight stabilization time is specified as follows in i2c_imx_start of i2c-imx.c.
Phenomenon initialization to succeed if change to 2ms about this 50us has occurred.
/ * Wait controller to be stable * /
udelay (50);
Question
The meaning of this weight time,
, the impact of changing (like needing increased weight more in the case of 400kHz) and whether or not depends on the communication speed.
/ * Wait controller to be stable * /
udelay (50);
The location of the source code
\ linux-3.0.35 \ drivers \ i2c \ busses \ i2c-imx.c
