drivers:misc: ti-st: remove multiple gpio handling

TI shared transport driver previously intended to expose rfkill
entries for each of the protocol gpio that the chip would have.
However now in case such gpios exist, which requires to be enabled
for a specific protocol, the responsibility lay on protocol driver.
This patch removes the request/free of multiple gpios, rfkill struct
references and also removes the chip_toggle function.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 17 deletions

diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h
index 7885a779c588..7071ec5d0118 100644
--- a/include/linux/ti_wilink_st.h
+++ b/include/linux/ti_wilink_st.h
@@ -26,15 +26,6 @@
 #define TI_WILINK_ST_H
 
 /**
- * enum kim_gpio_state - Few protocols such as FM have ACTIVE LOW
- *      gpio states for their chip/core enable gpios
- */
-enum kim_gpio_state {
-        KIM_GPIO_INACTIVE,
-        KIM_GPIO_ACTIVE,
-};
-
-/**
  * enum proto-type - The protocol on WiLink chips which share a
  *      common physical interface like UART.
  */
@@ -252,14 +243,11 @@ struct chip_version {
  *      the ldisc was properly installed.
  * @resp_buffer: data buffer for the .bts fw file name.
  * @fw_entry: firmware class struct to request/release the fw.
- * @gpios: the list of core/chip enable gpios for BT, FM and GPS cores.
  * @rx_state: the rx state for kim's receive func during fw download.
  * @rx_count: the rx count for the kim's receive func during fw download.
  * @rx_skb: all of fw data might not come at once, and hence data storage for
  *      whole of the fw response, only HCI_EVENTs and hence diff from ST's
  *      response.
- * @rfkill: rfkill data for each of the cores to be registered with rfkill.
- * @rf_protos: proto types of the data registered with rfkill sub-system.
  * @core_data: ST core's data, which mainly is the tty's disc_data
  * @version: chip version available via a sysfs entry.
  *
@@ -270,12 +258,10 @@ struct kim_data_s {
         struct completion kim_rcvd, ldisc_installed;
         char resp_buffer[30];
         const struct firmware *fw_entry;
-        long gpios[ST_MAX_CHANNELS];
+        long nshutdown;
         unsigned long rx_state;
         unsigned long rx_count;
         struct sk_buff *rx_skb;
-        struct rfkill *rfkill[ST_MAX_CHANNELS];
-        enum proto_type rf_protos[ST_MAX_CHANNELS];
         struct st_data_s *core_data;
         struct chip_version version;
         unsigned char ldisc_install;
@@ -293,7 +279,6 @@ long st_kim_start(void *);
 long st_kim_stop(void *);
 
 void st_kim_recv(void *, const unsigned char *, long count);
-void st_kim_chip_toggle(enum proto_type, enum kim_gpio_state);
 void st_kim_complete(void *);
 void kim_st_list_protocols(struct st_data_s *, void *);
 
@@ -426,7 +411,7 @@ struct gps_event_hdr {
 
 /* platform data */
 struct ti_st_plat_data {
-        long gpios[ST_MAX_CHANNELS]; /* BT, FM and GPS */
+        long nshutdown_gpio;
         unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */
         unsigned char flow_cntrl; /* flow control flag */
         unsigned long baud_rate;