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Subject[PATCH 1/1] spi: altera: Add empty implementation of setup_transfer callback
Date
This callback is mandatory since txrx_bufs callback is defined. The lack of
it causes a kernel panic on first SPI transaction.

Signed-off-by: Pelle Nilsson <per.nilsson@xelmo.com>
---
drivers/spi/spi-altera.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index b95010e..6d72b1d 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -197,6 +197,11 @@ static irqreturn_t altera_spi_irq(int irq, void *dev)
return IRQ_HANDLED;
}

+static int altera_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
+{
+ return 0;
+}
+
static int altera_spi_probe(struct platform_device *pdev)
{
struct altera_spi *hw;
@@ -220,6 +225,7 @@ static int altera_spi_probe(struct platform_device *pdev)

/* setup the state for the bitbang driver */
hw->bitbang.master = master;
+ hw->bitbang.setup_transfer = altera_spi_setupxfer;
hw->bitbang.chipselect = altera_spi_chipsel;
hw->bitbang.txrx_bufs = altera_spi_txrx;

--
1.9.1


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