soc : realtek: ec: rts5912: fix waiting time not enough

For the ULPM set, it asks for a 10ms ready time for the module.
Use k_busy_wait instead of k_msleep to ensure we wait enough clock cycles.

Signed-off-by: Elmo Lan <[email protected]>

Author: elmo9999

soc/realtek/ec/rts5912/rts5912_ulpm.c

@@ -24,6 +24,8 @@ BUILD_ASSERT(DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT) <= 1, "Unsupported number of
 
 #define ULPM_RTS5912_MAX_NB_WKUP_PINS DT_INST_PROP(0, wkup_pins_max)
 
+#define RTS5912_ULPM_WAIT_READY (10 * USEC_PER_MSEC)
+
 /** @cond INTERNAL_HIDDEN */
 
 /**
@@ -89,13 +91,13 @@ void ulpm_start(void)
 	SYSTEM_Type *sys_reg = RTS5912_SCCON_REG_BASE;
 	/* enable VOUT */
 	sys_reg->VIVOCTRL &= ~(SYSTEM_VIVOCTRL_VOUTMD_Msk);
-	k_msleep(10);
+	k_busy_wait(RTS5912_ULPM_WAIT_READY);
 	/* Set the VOUT to low */
 	sys_reg->VIVOCTRL &= ~(SYSTEM_VIVOCTRL_VODEF_Msk);
-	k_msleep(10);
+	k_busy_wait(RTS5912_ULPM_WAIT_READY);
 	/* update to ULPM */
 	sys_reg->VIVOCTRL |= SYSTEM_VIVOCTRL_REGWREN_Msk;
-	k_msleep(10);
+	k_busy_wait(RTS5912_ULPM_WAIT_READY);
 }
 /**
  * @brief Update register value to ULPM IP
@@ -104,11 +106,11 @@ void update_vivo_register(void)
 {
 	SYSTEM_Type *sys_reg = RTS5912_SCCON_REG_BASE;
 	/* Update Register & reset bit */
-	k_msleep(10);
+	k_busy_wait(RTS5912_ULPM_WAIT_READY);
 	sys_reg->VIVOCTRL |= SYSTEM_VIVOCTRL_REGWREN_Msk;
-	k_msleep(10);
+	k_busy_wait(RTS5912_ULPM_WAIT_READY);
 	sys_reg->VIVOCTRL &= ~(SYSTEM_VIVOCTRL_REGWREN_Msk);
-	k_msleep(10);
+	k_busy_wait(RTS5912_ULPM_WAIT_READY);
 }
 
 /**
@@ -125,7 +127,7 @@ void rts5912_ulpm_enable(void)
 	LOG_INF("rts5912 ULPM enabled\n");
 	/* VoutEnable, Keep VOUT output default value as bit 16 */
 	sys_reg->VIVOCTRL |= SYSTEM_VIVOCTRL_VODEF_Msk;
-	k_msleep(10);
+	k_busy_wait(RTS5912_ULPM_WAIT_READY);
 
 	/* set to GPIO mode to clear status and aviod mis-trigger */
 	sys_reg->VIVOCTRL |= (SYSTEM_VIVOCTRL_VIN0MD_Msk | SYSTEM_VIVOCTRL_VIN1MD_Msk |