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| author | Mark Brown <broonie@kernel.org> | 2018-06-27 14:34:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-06-27 14:34:10 +0100 |
| commit | eed41b9f413f40183095d27ffc94fb942fe18bb6 (patch) | |
| tree | 0a28112db2410e9ae7586343895079d470121599 /drivers/spi/spi-bcm2835aux.c | |
| parent | 698f8bc0bacea1351db9de6f247e6922fb4d7f80 (diff) | |
| parent | 1ce34dea91ae86bb18f493f72292df1bf6f66df7 (diff) | |
Merge branch 'linux-linaro-lsk-v4.14' into linux-linaro-lsk-v4.14-rtlsk-v4.14-18.06-rt
Diffstat (limited to 'drivers/spi/spi-bcm2835aux.c')
| -rw-r--r-- | drivers/spi/spi-bcm2835aux.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c index 7428091d3f5b..bd00b7cc8b78 100644 --- a/drivers/spi/spi-bcm2835aux.c +++ b/drivers/spi/spi-bcm2835aux.c @@ -184,6 +184,11 @@ static irqreturn_t bcm2835aux_spi_interrupt(int irq, void *dev_id) struct bcm2835aux_spi *bs = spi_master_get_devdata(master); irqreturn_t ret = IRQ_NONE; + /* IRQ may be shared, so return if our interrupts are disabled */ + if (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_CNTL1) & + (BCM2835_AUX_SPI_CNTL1_TXEMPTY | BCM2835_AUX_SPI_CNTL1_IDLE))) + return ret; + /* check if we have data to read */ while (bs->rx_len && (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) & |