From a7d53dbbc70a81d5781da7fc905b656f41ad2381 Mon Sep 17 00:00:00 2001
From: Casey Bowman <casey.g.bowman@intel.com>
Date: Wed, 10 Feb 2021 11:20:41 -0800
Subject: [PATCH] platform/x86: intel_scu_ipc: Increase virtual timeout from 3
to 5 seconds
Increasing the virtual timeout time to account for scenarios
that may require more time, like DisplayPort Multi-Stream Transport
(DP MST), where the disconnect time can be extended longer than
usual.
The recommended timeout range is 5-10 seconds, of which
we will take the lower bound.
Signed-off-by: Casey Bowman <casey.g.bowman@intel.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210210192041.17022-1-casey.g.bowman@intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/platform/x86/intel_scu_ipc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index d9cf7f7602b0..9171a46a9e3f 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -75,7 +75,7 @@ struct intel_scu_ipc_dev {
#define IPC_READ_BUFFER 0x90
/* Timeout in jiffies */
-#define IPC_TIMEOUT (3 * HZ)
+#define IPC_TIMEOUT (5 * HZ)
static struct intel_scu_ipc_dev *ipcdev; /* Only one for now */
static DEFINE_MUTEX(ipclock); /* lock used to prevent multiple call to SCU */