Input: add support for enhanced rotary controller on pxa930 and pxa935

Signed-off-by: Yong Yao <yaoyong@marvell.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/include/mach/pxa930_rotary.h b/arch/arm/mach-pxa/include/mach/pxa930_rotary.h
new file mode 100644
index 000000000000..053587caffdd
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/pxa930_rotary.h
@@ -0,0 +1,20 @@
+#ifndef __ASM_ARCH_PXA930_ROTARY_H
+#define __ASM_ARCH_PXA930_ROTARY_H
+
+/* NOTE:
+ *
+ * rotary can be either interpreted as a ralative input event (e.g.
+ * REL_WHEEL or REL_HWHEEL) or a specific key event (e.g. UP/DOWN
+ * or LEFT/RIGHT), depending on if up_key & down_key are assigned
+ * or rel_code is assigned a non-zero value. When all are non-zero,
+ * up_key and down_key will be preferred.
+ */
+struct pxa930_rotary_platform_data {
+        int     up_key;
+        int     down_key;
+        int     rel_code;
+};
+
+void __init pxa930_set_rotarykey_info(struct pxa930_rotary_platform_data *info);
+
+#endif /* __ASM_ARCH_PXA930_ROTARY_H */