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I am using a custom board based on imx28 with the SAIF interface connected directly with the PCM output of a modem. I have written a dummy codec (with a line discipline that controls the modem), integrate it with mxs-devb.c. I am able to receive DMA irq but when __readl(SAIF0_...
dummy codec (with a line discipline that controls the modem), integrate it with mxs-devb.c. I am able to receive DMA irq but when __readl(SAIF0_DATA) i always receive 0x0. Even if i manualy write (__raw_writel(0x2131231, SAIF0_DATA_SET)) and then read the data i still get...