can: Driver for the Microchip MCP251x SPI CAN controllers

Signed-off-by: Christian Pellegrin <chripell@fsfe.org>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 36 insertions, 0 deletions

diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h
new file mode 100644
index 000000000000..1448177d86d5
--- /dev/null
+++ b/include/linux/can/platform/mcp251x.h
@@ -0,0 +1,36 @@
+#ifndef __CAN_PLATFORM_MCP251X_H__
+#define __CAN_PLATFORM_MCP251X_H__
+
+/*
+ *
+ * CAN bus driver for Microchip 251x CAN Controller with SPI Interface
+ *
+ */
+
+#include <linux/spi/spi.h>
+
+/**
+ * struct mcp251x_platform_data - MCP251X SPI CAN controller platform data
+ * @oscillator_frequency:       - oscillator frequency in Hz
+ * @model:                      - actual type of chip
+ * @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
+ *                                transceiver
+ *
+ * Please note that you should define power_enable or transceiver_enable or
+ * none of them. Defining both of them is no use.
+ *
+ */
+
+struct mcp251x_platform_data {
+	unsigned long oscillator_frequency;
+	int model;
+#define CAN_MCP251X_MCP2510 0
+#define CAN_MCP251X_MCP2515 1
+	int (*board_specific_setup)(struct spi_device *spi);
+	int (*transceiver_enable)(int enable);
+	int (*power_enable) (int enable);
+};
+
+#endif /* __CAN_PLATFORM_MCP251X_H__ */