From: Jon Lin <jon.lin@rock-chips.com>
To: broonie@kernel.org
Cc: heiko@sntech.de, linux-spi@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
Jon Lin <jon.lin@rock-chips.com>
Subject: [PATCH 6/6] spi: rockchip: clear interrupt status in error handler
Date: Fri, 11 Feb 2022 11:43:43 +0800 [thread overview]
Message-ID: <20220211034344.4130-7-jon.lin@rock-chips.com> (raw)
In-Reply-To: <20220211034344.4130-1-jon.lin@rock-chips.com>
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(-)
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
next prev parent reply other threads:[~2022-02-11 3:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-11 3:43 [PATCH 1/6] spi: rockchip: Stop spi slave dma receiver when cs inactive Jon Lin
2022-02-11 3:43 ` [PATCH 2/6] spi: rockchip: Preset cs-high and clk polarity in setup progress Jon Lin
2022-02-11 11:24 ` Mark Brown
[not found] ` <4222ce7d-a1e3-1728-fec2-976946b06ba9@rock-chips.com>
2022-02-14 12:49 ` Mark Brown
[not found] ` <e0f0ca0d-40df-cf86-9471-9272bcc171f9@rock-chips.com>
2022-02-15 12:36 ` Mark Brown
2022-02-16 1:23 ` Jon Lin
2022-02-11 3:43 ` [PATCH 3/6] spi: rockchip: Fix error in getting num-cs property Jon Lin
2022-02-11 11:25 ` Mark Brown
2022-02-11 3:43 ` [PATCH 4/6] spi: rockchip: Suspend and resume the bus during NOIRQ_SYSTEM_SLEEP_PM ops Jon Lin
2022-02-11 3:43 ` [PATCH v10 5/6] spi: rockchip: Support cs-gpio Jon Lin
2022-02-11 11:48 ` Mark Brown
2022-02-11 3:43 ` [PATCH 5/6] spi: rockchip: terminate dma transmission when slave abort Jon Lin
2022-02-11 11:49 ` Mark Brown
2022-02-11 3:43 ` Jon Lin [this message]
2022-02-11 3:43 ` [PATCH v10 6/6] spi: rockchip: Support SPI_CS_HIGH Jon Lin
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