Commit 23065096 authored by Thor Thayer's avatar Thor Thayer Committed by Mark Brown

spi: dw-spi: Single Register read to clear IRQs

Instead of clearing the RxU, RxO, and TxO IRQs individually with
3 register reads, a single read of the ICR register will do the
same thing.
Signed-off-by: default avatarThor Thayer <>
Signed-off-by: default avatarAndy Shevchenko <>
Signed-off-by: default avatarMark Brown <>
parent d744f826
......@@ -232,9 +232,7 @@ static irqreturn_t interrupt_transfer(struct dw_spi *dws)
/* Error handling */
if (irq_status & (SPI_INT_TXOI | SPI_INT_RXOI | SPI_INT_RXUI)) {
dw_readw(dws, DW_SPI_TXOICR);
dw_readw(dws, DW_SPI_RXOICR);
dw_readw(dws, DW_SPI_RXUICR);
dw_readw(dws, DW_SPI_ICR);
int_error_stop(dws, "interrupt_transfer: fifo overrun/underrun");
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