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soc: pinctrl-lpi: Add 100msec before resetting hw votes

Add 100msec delay before resetting hw vote counts in
SSR up sequence in order to ensure AVS is up when
votes are requested.

Change-Id: I0f46c60555f6bf833b1cac76f86a54afdcb78ba0
Signed-off-by: Aditya Bavanari <[email protected]>
Aditya Bavanari 5 years ago
parent
commit
204e309fad
1 changed files with 3 additions and 0 deletions
  1. 3 0
      soc/pinctrl-lpi.c

+ 3 - 0
soc/pinctrl-lpi.c

@@ -15,6 +15,7 @@
 #include <linux/types.h>
 #include <linux/clk.h>
 #include <linux/bitops.h>
+#include <linux/delay.h>
 #include <soc/snd_event.h>
 #include <dsp/digital-cdc-rsc-mgr.h>
 #include <linux/pm_runtime.h>
@@ -489,6 +490,8 @@ static int lpi_notifier_service_cb(struct notifier_block *this,
 
 		/* Reset HW votes after SSR */
 		if (!lpi_dev_up) {
+			/* Add 100ms sleep to ensure AVS is up after SSR */
+			msleep(100);
 			if (state->lpass_core_hw_vote)
 				digital_cdc_rsc_mgr_hw_vote_reset(
 					state->lpass_core_hw_vote);