On Fri, Jan 20, 2017 at 04:28:43PM +0200, Ander Conselvan de Oliveira wrote:
> An error in the condition for avoiding the call to intel_hpd_poll_init()
> for valleyview and cherryview from intel_runtime_suspend() caused it to
> be called unconditionally. Fix it.
>
> Found by coverity.
>
> Fixes: 19625e85c6ec ("drm/i915: Enable polling when we don't have hpd")
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Cc: Lyude <cpaul@xxxxxxxxxx>
> Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
> Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.9+
> Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_drv.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 4ae69eb..ca168b2 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -2377,7 +2377,7 @@ static int intel_runtime_suspend(struct device *kdev)
>
> assert_forcewakes_inactive(dev_priv);
>
> - if (!IS_VALLEYVIEW(dev_priv) || !IS_CHERRYVIEW(dev_priv))
> + if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv))
> intel_hpd_poll_init(dev_priv);
>
> DRM_DEBUG_KMS("Device suspended\n");
> --
> 2.5.5
--
Ville Syrjälä
Intel OTC
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