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SubjectRe: [PATCH] platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds
On Wed, Feb 10, 2021 at 9:20 PM Casey Bowman <casey.g.bowman@intel.com> wrote:
>
> 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.

Since the driver is used across several platforms, can we somehow be
more flexible with it on a per platform basis or so (per command?)?
In general I'm not against the patch and I usually don't see the long
timeouts on other platforms, so if Hans thinks it's okay to take,
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>

> 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>
> ---
> 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 */
> --
> 2.17.1
>


--
With Best Regards,
Andy Shevchenko

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