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authorEnric Balletbo i Serra <eballetbo@iseebcn.com>2011-04-05 07:08:41 +0000
committerDavid S. Miller <davem@davemloft.net>2011-04-06 12:24:26 -0700
commit34206f267120c839a479d0237db907fa062e7b0f (patch)
tree9c0ba35cefe44b0913c6cbbc7165869d839abee7 /drivers/net/can
parent35a67edf3570e9b44c34965dd52a6b7f845fb40f (diff)
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can: mcp251x: Allow pass IRQ flags through platform data.
When an interrupt occurs, the INT pin is driven low by the MCP251x controller (falling edge) but in some cases the INT pin can be connected to the MPU through a transistor or level translator which inverts this signal. In this case interrupt should be configured in rising edge. This patch adds support to pass the IRQ flags via mcp251x_platform_data. Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can')
-rw-r--r--drivers/net/can/mcp251x.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c
index 7513c45..330140e 100644
--- a/drivers/net/can/mcp251x.c
+++ b/drivers/net/can/mcp251x.c
@@ -931,7 +931,8 @@ static int mcp251x_open(struct net_device *net)
priv->tx_len = 0;
ret = request_threaded_irq(spi->irq, NULL, mcp251x_can_ist,
- IRQF_TRIGGER_FALLING, DEVICE_NAME, priv);
+ pdata->irq_flags ? pdata->irq_flags : IRQF_TRIGGER_FALLING,
+ DEVICE_NAME, priv);
if (ret) {
dev_err(&spi->dev, "failed to acquire irq %d\n", spi->irq);
if (pdata->transceiver_enable)