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authorEnric Balletbo i Serra <eballetbo@iseebcn.com>2011-04-05 11:08:41 +0400
committerDavid S. Miller <davem@davemloft.net>2011-04-06 23:24:26 +0400
commit34206f267120c839a479d0237db907fa062e7b0f (patch)
tree9c0ba35cefe44b0913c6cbbc7165869d839abee7 /include/linux/can
parent35a67edf3570e9b44c34965dd52a6b7f845fb40f (diff)
downloadlinux-34206f267120c839a479d0237db907fa062e7b0f.tar.xz
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 'include/linux/can')
-rw-r--r--include/linux/can/platform/mcp251x.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h
index 8e20540043f5..089fe43211a4 100644
--- a/include/linux/can/platform/mcp251x.h
+++ b/include/linux/can/platform/mcp251x.h
@@ -12,6 +12,7 @@
/**
* struct mcp251x_platform_data - MCP251X SPI CAN controller platform data
* @oscillator_frequency: - oscillator frequency in Hz
+ * @irq_flags: - IRQF configuration flags
* @board_specific_setup: - called before probing the chip (power,reset)
* @transceiver_enable: - called to power on/off the transceiver
* @power_enable: - called to power on/off the mcp *and* the
@@ -24,6 +25,7 @@
struct mcp251x_platform_data {
unsigned long oscillator_frequency;
+ unsigned long irq_flags;
int (*board_specific_setup)(struct spi_device *spi);
int (*transceiver_enable)(int enable);
int (*power_enable) (int enable);