diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c index 7de6f8472a8100656884647ad5447be94604e7bb..e1b2fec1db63122770a16b3cef2d99a379e5a4c8 100644 --- a/drivers/spi/spi-bcm2835aux.c +++ b/drivers/spi/spi-bcm2835aux.c @@ -212,6 +212,12 @@ static irqreturn_t bcm2835aux_spi_interrupt(int irq, void *dev_id) ret = IRQ_HANDLED; } + if (!bs->tx_len) { + /* disable tx fifo empty interrupt */ + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, bs->cntl[1] | + BCM2835_AUX_SPI_CNTL1_IDLE); + } + /* and if rx_len is 0 then wake up completion and disable spi */ if (!bs->rx_len) { bcm2835aux_spi_reset_hw(bs);