Frank Agius wrote:
Further debug shows that in the module initialization routine twl4030_madc_set_power, as soon as the MADC is powered on by setting CTRL1[0] MADCON bit to 1, the BUSY bit of CTRL_SW1 turns on and never turns off. I'm guessing this constant state of busy is why the conversion never completes.
I'm still having the same problem with the conversion never completing, but my initial debug analysis was wrong. The BUSY bit does not turn on when power is applied. BUSY turns on when the conversion is started. The conversion never completes (BUSY never turns off). BUSY can only be reset with a power cycle (removing and reinserting the driver does not clear BUSY).
Im trying to understand if this is a driver problem or something specific to the Overo. Can anyone with one of the boards that has support enabled for the twl4030 driver (EVM2, EVM3, LDP and 2340/3430sdp)confirm the status of ADC on that board? If it's functional, what is the Linux revision of the working driver?
regards, frank -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
