[RFC PATCH v1 6/6] spi: rockchip: clear interrupt status in error handler

[Jon Lin]

The interrupt status bit of the previous error data transmition will
affect the next operation and cause continuous SPI transmission failure.

Signed-off-by: Jon Lin <jon.lin at rock-chips.com>
---

 drivers/spi/spi-rockchip.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 3d4e95eda4a6..bc547b79a2a1 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/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);
-- 
2.17.1