spi: rockchip: clear interrupt status in error handler

The interrupt status bit of the previous error data transmition will
affect the next operation and cause continuous SPI transmission failure.
Signed-off-by: NJon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20220216014028.8123-7-jon.lin@rock-chips.comSigned-off-by: NMark Brown <broonie@kernel.org>

drivers/spi/spi-rockchip.c

@@ -278,8 +278,9 @@ static void rockchip_spi_handle_err(struct spi_controller *ctlr,
 	 */
 	spi_enable_chip(rs, false);
 
-	/* make sure all interrupts are masked */
+	/* make sure all interrupts are masked and status cleared */
 	writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR);
+	writel_relaxed(0xffffffff, rs->regs + ROCKCHIP_SPI_ICR);
 
 	if (atomic_read(&rs->state) & TXDMA)
 		dmaengine_terminate_async(ctlr->dma_tx);