intel: idc: remove unused function

Remove idc_wait_in_blocking_mode() as its no longer use with
Zephyr based IDC.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

Author: lrgirdwo

posix/include/rtos/idc.h

@@ -196,8 +196,6 @@ enum task_state idc_do_cmd(void *data);
 
 void idc_cmd(struct idc_msg *msg);
 
-int idc_wait_in_blocking_mode(uint32_t target_core, bool (*cond)(int));
-
 int idc_msg_status_get(uint32_t core);
 
 void idc_init_thread(void);

src/idc/idc.c

@@ -72,35 +72,6 @@ int idc_msg_status_get(uint32_t core)
 	return *(uint32_t *)payload->data;
 }
 
-/**
- * \brief Waits until status condition is true.
- * \param[in] target_core Id of the core receiving the message.
- * \param[in] cond Pointer to condition function.
- * \return Error code.
- */
-int idc_wait_in_blocking_mode(uint32_t target_core, bool (*cond)(int))
-{
-	uint64_t deadline = sof_cycle_get_64() + k_us_to_cyc_ceil64(IDC_TIMEOUT);
-
-	while (!cond(target_core)) {
-		/* spin here so other core can access IO and timers freely */
-		wait_delay(8192);
-
-		if (deadline < sof_cycle_get_64())
-			break;
-	}
-
-	/* safe check in case we've got preempted
-	 * after read
-	 */
-	if (cond(target_core))
-		return 0;
-
-	tr_err(&idc_tr, "idc_wait_in_blocking_mode() error: timeout, target_core %u",
-	       target_core);
-	return -ETIME;
-}
-
 /**
  * \brief Executes IDC IPC processing message.
  */

xtos/include/rtos/idc.h

@@ -173,8 +173,6 @@ enum task_state idc_do_cmd(void *data);
 
 void idc_cmd(struct idc_msg *msg);
 
-int idc_wait_in_blocking_mode(uint32_t target_core, bool (*cond)(int));
-
 int idc_msg_status_get(uint32_t core);
 
 void idc_init_thread(void);

zephyr/include/rtos/idc.h

@@ -201,8 +201,6 @@ enum task_state idc_do_cmd(void *data);
 
 void idc_cmd(struct idc_msg *msg);
 
-int idc_wait_in_blocking_mode(uint32_t target_core, bool (*cond)(int));
-
 int idc_msg_status_get(uint32_t core);
 
 int idc_init(void);