From 652b70446f3556c982057c185cde225587f4c46f Mon Sep 17 00:00:00 2001 From: Jon Lin Date: Thu, 23 Dec 2021 10:29:04 +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. Change-Id: Ib215d63d8572e3fc8d843652687e1ebfb7ff531e Signed-off-by: Jon Lin --- 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 58bfa819e1f7..a6dbbfc7598f 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -280,8 +280,9 @@ 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);