From ce6e74d008ff5c8b43e3bafaa7343bf7eb69593e Mon Sep 17 00:00:00 2001
From: Shreyas NC <shreyas.nc@intel.com>
Date: Fri, 27 Jul 2018 14:44:16 +0530
Subject: soundwire: Add support for multi link bank switch

In cases of multiple Masters in a stream, synchronization
between multiple Master(s) is achieved by performing bank switch
together and using Master methods.

Add sdw_ml_bank_switch() to wait for completion of bank switch.

Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
 drivers/soundwire/bus.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/soundwire/bus.h')

diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h
index b6cfbdfc47d5..c77de05b8100 100644
--- a/drivers/soundwire/bus.h
+++ b/drivers/soundwire/bus.h
@@ -4,6 +4,8 @@
 #ifndef __SDW_BUS_H
 #define __SDW_BUS_H
 
+#define DEFAULT_BANK_SWITCH_TIMEOUT 3000
+
 #if IS_ENABLED(CONFIG_ACPI)
 int sdw_acpi_find_slaves(struct sdw_bus *bus);
 #else
-- 
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