05.08.2020 20:29, Sowjanya Komatineni пишет: ... > UART_FST_MIPI_CAL is the clock used for calibration logic which is FSM > that goes thru sequence codes and when done waits for pads to be in > LP-11 to apply results. > > MIPI_CLK is controller gate clock which is also need to be kept enabled > as incase if it sees LP-11 it updates registers so its recommended to > have this clock enabled. > > We can cancel_calibration() in CSI only when csi/sensor stream on fails > and in which case there will be no LP-11 so we can unconditionally > disable MIPI_CLK. >
There is no guarantee that the fail comes before the LP-11. For example, some odd camera driver may have a complicated enable sequence which may fail after enabling the hardware streaming.
