From 2fcdde56c44fe1cd13ce328128f509bbda2cdb41 Mon Sep 17 00:00:00 2001 From: Jon Lin Date: Wed, 16 Feb 2022 09:40:28 +0800 Subject: [PATCH] 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: Jon Lin Link: https://lore.kernel.org/r/20220216014028.8123-7-jon.lin@rock-chips.com Signed-off-by: Mark Brown --- 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 8b4d56e..cdc16ee 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); -- 2.7.4