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platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds

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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>
This commit is contained in:
Casey Bowman 2021-02-10 11:20:41 -08:00 • committed by Hans de Goede
parent 86eb98cb4a
commit a7d53dbbc7
1 changed files with 1 additions and 1 deletions
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2
drivers/platform/x86/intel_scu_ipc.c
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@ -75,7 +75,7 @@ struct intel_scu_ipc_dev {
#define IPC_READ_BUFFER 0x90 #define IPC_READ_BUFFER 0x90
/* Timeout in jiffies */ /* 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 struct intel_scu_ipc_dev *ipcdev; /* Only one for now */
static DEFINE_MUTEX(ipclock); /* lock used to prevent multiple call to SCU */ static DEFINE_MUTEX(ipclock); /* lock used to prevent multiple call to SCU */