On Fri, 31 Jan 2014, Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:
> I have a machine here which hits this (a g33):
>
> [ 13.368536] excessive driver sleep timeout (DSPL) 1024
>
> Apparently people love pot numbers, and one second isn't that
> unreasonable (for a bios writer at least) I guess.
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_opregion.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
> index 3da259e280ba..3c7e38c7ed87 100644
> --- a/drivers/gpu/drm/i915/intel_opregion.c
> +++ b/drivers/gpu/drm/i915/intel_opregion.c
> @@ -261,10 +261,10 @@ static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
> /* The spec says 2ms should be the default, but it's too small
> * for some machines. */
> dslp = 50;
> - } else if (dslp > 500) {
> + } else if (dslp > 1500) {
> /* Hey bios, trust must be earned. */
> WARN_ONCE(1, "excessive driver sleep timeout (DSPL) %u\n", dslp);
> - dslp = 500;
> + dslp = 1500;
> }
>
> /* The spec tells us to do this, but we are the only user... */
> --
> 1.8.3.1
>
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--
Jani Nikula, Intel Open Source Technology Center
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