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authorDavid Mosberger <davidm@egauge.net>2014-04-28 22:14:07 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-05-27 15:20:33 -0700
commit2d53139f31626bad6f8983d8e519ddde2cbba921 (patch)
tree89755c03f07ad57c75d6d2e7d926e1d57daf6443 /include/linux/platform_data/max3421-hcd.h
parentc6a64de08e52235b570fedbe927cc5f3127ca47e (diff)
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>
Diffstat (limited to 'include/linux/platform_data/max3421-hcd.h')
-rw-r--r--include/linux/platform_data/max3421-hcd.h23
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 */