Platform: OLPC: add a stub to drivers/platform/ for the OLPC EC driver

The OLPC EC driver has outgrown arch/x86/platform/.  It's time to both
share common code amongst different architectures, as well as move it out
of arch/x86/.  The XO-1.75 is ARM-based, and the EC driver shares a lot of
code with the x86 code.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Paul Fox <pgf@laptop.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 29 insertions, 0 deletions

diff --git a/include/linux/olpc-ec.h b/include/linux/olpc-ec.h
new file mode 100644
index 000000000000..6d4e426d9fdc
--- /dev/null
+++ b/include/linux/olpc-ec.h
@@ -0,0 +1,29 @@
+#ifndef _LINUX_OLPC_EC_H
+#define _LINUX_OLPC_EC_H
+
+/* XO-1 EC commands */
+#define EC_FIRMWARE_REV                 0x08
+#define EC_WRITE_SCI_MASK               0x1b
+#define EC_WAKE_UP_WLAN                 0x24
+#define EC_WLAN_LEAVE_RESET             0x25
+#define EC_READ_EB_MODE                 0x2a
+#define EC_SET_SCI_INHIBIT              0x32
+#define EC_SET_SCI_INHIBIT_RELEASE      0x34
+#define EC_WLAN_ENTER_RESET             0x35
+#define EC_WRITE_EXT_SCI_MASK           0x38
+#define EC_SCI_QUERY                    0x84
+#define EC_EXT_SCI_QUERY                0x85
+
+#ifdef CONFIG_OLPC
+
+extern int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
+                size_t outlen);
+
+#else
+
+static inline int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
+                size_t outlen) { return -ENODEV; }
+
+#endif /* CONFIG_OLPC */
+
+#endif /* _LINUX_OLPC_EC_H */