1 files changed, 26 insertions, 1 deletions

diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h
index b004e557caa9..2ef4385da6bf 100644
--- a/include/linux/ti_wilink_st.h
+++ b/include/linux/ti_wilink_st.h
@@ -410,7 +410,28 @@ struct gps_event_hdr {
         u16 plen;
 } __attribute__ ((packed));
 
-/* platform data */
+/**
+ * struct ti_st_plat_data - platform data shared between ST driver and
+ *      platform specific board file which adds the ST device.
+ * @nshutdown_gpio: Host's GPIO line to which chip's BT_EN is connected.
+ * @dev_name: The UART/TTY name to which chip is interfaced. (eg: /dev/ttyS1)
+ * @flow_cntrl: Should always be 1, since UART's CTS/RTS is used for PM
+ *      purposes.
+ * @baud_rate: The baud rate supported by the Host UART controller, this will
+ *      be shared across with the chip via a HCI VS command from User-Space Init
+ *      Mgr application.
+ * @suspend:
+ * @resume: legacy PM routines hooked to platform specific board file, so as
+ *      to take chip-host interface specific action.
+ * @chip_enable:
+ * @chip_disable: Platform/Interface specific mux mode setting, GPIO
+ *      configuring, Host side PM disabling etc.. can be done here.
+ * @chip_asleep:
+ * @chip_awake: Chip specific deep sleep states is communicated to Host
+ *      specific board-xx.c to take actions such as cut UART clocks when chip
+ *      asleep or run host faster when chip awake etc..
+ *
+ */
 struct ti_st_plat_data {
         long nshutdown_gpio;
         unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */
@@ -418,6 +439,10 @@ struct ti_st_plat_data {
         unsigned long baud_rate;
         int (*suspend)(struct platform_device *, pm_message_t);
         int (*resume)(struct platform_device *);
+        int (*chip_enable) (struct kim_data_s *);
+        int (*chip_disable) (struct kim_data_s *);
+        int (*chip_asleep) (struct kim_data_s *);
+        int (*chip_awake) (struct kim_data_s *);
 };
 
 #endif /* TI_WILINK_ST_H */