spi: bcm2835: Remove shared interrupt support
This reverts commit ecfbd3cf3b8b since Lukas Wunner noticed that we
start operating on the hardware before we check to see if this is a
spurious interrupt.
Reported-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index f3e4167..237bd30 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -379,10 +379,6 @@ static irqreturn_t bcm2835_spi_interrupt(int irq, void *dev_id)
if (bs->tx_len && cs & BCM2835_SPI_CS_DONE)
bcm2835_wr_fifo_blind(bs, BCM2835_SPI_FIFO_SIZE);
- /* check if we got interrupt enabled */
- if (!(bcm2835_rd(bs, BCM2835_SPI_CS) & BCM2835_SPI_CS_INTR))
- return IRQ_NONE;
-
/* Read as many bytes as possible from FIFO */
bcm2835_rd_fifo(bs);
/* Write as many bytes as possible to FIFO */
@@ -1348,8 +1344,8 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
bcm2835_wr(bs, BCM2835_SPI_CS,
BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
- err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt,
- IRQF_SHARED, dev_name(&pdev->dev), ctlr);
+ err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt, 0,
+ dev_name(&pdev->dev), ctlr);
if (err) {
dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
goto out_dma_release;