1 files changed, 49 insertions, 0 deletions

diff --git a/include/linux/platform_data/msm_serial_hs.h b/include/linux/platform_data/msm_serial_hs.h
new file mode 100644
index 00000000000..98a2046f8b3
--- /dev/null
+++ b/include/linux/platform_data/msm_serial_hs.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Nick Pelly <npelly@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ASM_ARCH_MSM_SERIAL_HS_H
+#define __ASM_ARCH_MSM_SERIAL_HS_H
+
+#include <linux/serial_core.h>
+
+/* API to request the uart clock off or on for low power management
+ * Clients should call request_clock_off() when no uart data is expected,
+ * and must call request_clock_on() before any further uart data can be
+ * received. */
+extern void msm_hs_request_clock_off(struct uart_port *uport);
+extern void msm_hs_request_clock_on(struct uart_port *uport);
+
+/**
+ * struct msm_serial_hs_platform_data
+ * @rx_wakeup_irq: Rx activity irq
+ * @rx_to_inject: extra character to be inserted to Rx tty on wakeup
+ * @inject_rx: 1 = insert rx_to_inject. 0 = do not insert extra character
+ * @exit_lpm_cb: function called before every Tx transaction
+ *
+ * This is an optional structure required for UART Rx GPIO IRQ based
+ * wakeup from low power state. UART wakeup can be triggered by RX activity
+ * (using a wakeup GPIO on the UART RX pin). This should only be used if
+ * there is not a wakeup GPIO on the UART CTS, and the first RX byte is
+ * known (eg., with the Bluetooth Texas Instruments HCILL protocol),
+ * since the first RX byte will always be lost. RTS will be asserted even
+ * while the UART is clocked off in this mode of operation.
+ */
+struct msm_serial_hs_platform_data {
+        int rx_wakeup_irq;
+        unsigned char inject_rx_on_wakeup;
+        char rx_to_inject;
+        void (*exit_lpm_cb)(struct uart_port *);
+};
+
+#endif