Add support for using a MAX3421E chip as a host driver.

Signed-off-by: David Mosberger <davidm@egauge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/linux/platform_data/max3421-hcd.h b/include/linux/platform_data/max3421-hcd.h
new file mode 100644
index 000000000000..4ad459605d87
--- /dev/null
+++ b/include/linux/platform_data/max3421-hcd.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2014 eGauge Systems LLC
+ *      Contributed by David Mosberger-Tang <davidm@egauge.net>
+ *
+ * Platform-data structure for MAX3421 USB HCD driver.
+ *
+ */
+#ifndef MAX3421_HCD_PLAT_H_INCLUDED
+#define MAX3421_HCD_PLAT_H_INCLUDED
+
+/*
+ * This structure defines the mapping of certain auxiliary functions to the
+ * MAX3421E GPIO pins.  The chip has eight GP inputs and eight GP outputs.
+ * A value of 0 indicates that the pin is not used/wired to anything.
+ *
+ * At this point, the only control the max3421-hcd driver cares about is
+ * to control Vbus (5V to the peripheral).
+ */
+struct max3421_hcd_platform_data {
+        u8 vbus_gpout;                  /* pin controlling Vbus */
+};
+
+#endif /* MAX3421_HCD_PLAT_H_INCLUDED */