| Message ID | 20220211034344.4130-7-jon.lin@rock-chips.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 2fcdde56c44fe1cd13ce328128f509bbda2cdb41 |
| Headers | show |
| Series | [1/6] spi: rockchip: Stop spi slave dma receiver when cs inactive | expand |
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);
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@rock-chips.com> --- drivers/spi/spi-rockchip.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)