[PATCH 1/3] drm/i915/psr: drm_WARN_ON when activating disabled PSR

[Kahola, Mika]

> -----Original Message-----
> From: Intel-xe <intel-xe-bounces at lists.freedesktop.org> On Behalf Of Jouni Högander
> Sent: Friday, 15 August 2025 11.46
> To: intel-gfx at lists.freedesktop.org; intel-xe at lists.freedesktop.org
> Cc: Hogander, Jouni <jouni.hogander at intel.com>
> Subject: [PATCH 1/3] drm/i915/psr: drm_WARN_ON when activating disabled PSR
> 
> Add drm_WARN_ON for scenario where PSR is activated while it is disabled.
> 

Reviewed-by: Mika Kahola <mika.kahola at intel.com>

> Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_psr.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
> index 8bea2b8188a7..226d4d1c7c82 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -1787,6 +1787,8 @@ static void intel_psr_activate(struct intel_dp *intel_dp)
> 
>  	drm_WARN_ON(display->drm, intel_dp->psr.active);
> 
> +	drm_WARN_ON(display->drm, !intel_dp->psr.enabled);
> +
>  	lockdep_assert_held(&intel_dp->psr.lock);
> 
>  	/* psr1, psr2 and panel-replay are mutually exclusive.*/
> --
> 2.43.0