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- From ac94635b678715af00a685ada0a1b60dfb54c771 Mon Sep 17 00:00:00 2001
- From: Martin Sperl <[email protected]>
- Date: Mon, 13 May 2019 11:05:27 +0000
- Subject: [PATCH] spi: bcm2835: enable shared interrupt support
- Add shared interrupt support for this driver.
- Signed-off-by: Martin Sperl <[email protected]>
- ---
- drivers/spi/spi-bcm2835.c | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
- --- a/drivers/spi/spi-bcm2835.c
- +++ b/drivers/spi/spi-bcm2835.c
- @@ -379,6 +379,10 @@ static irqreturn_t bcm2835_spi_interrupt
- 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 */
- @@ -1281,7 +1285,8 @@ static int bcm2835_spi_probe(struct plat
- 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, 0,
- + err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt,
- + IRQF_SHARED,
- dev_name(&pdev->dev), ctlr);
- if (err) {
- dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
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