[Intel-gfx] [PATCH v2 2/6] drm/i915/display: fix comment on skl straps

[Jani Nikula]

On Wed, 24 Jun 2020, Lucas De Marchi <lucas.demarchi at intel.com> wrote:
> We are not checking for specific SKUs and feedback from HW team is that
> it may not work since it was supposed to be fixed by the same time
> straps stopped to be used. So, just update comment.
>
> v2: Instead of removing the check, just update the comment since
> feedback from HW team was that it actually may not work
>
> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>

Acked-by: Jani Nikula <jani.nikula at intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 49772c82a299..effd6b65f270 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -16863,8 +16863,9 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
>  
>  		/*
>  		 * Haswell uses DDI functions to detect digital outputs.
> -		 * On SKL pre-D0 the strap isn't connected, so we assume
> -		 * it's there.
> +		 * On SKL pre-D0 the strap isn't connected. Later SKUs may or
> +		 * may not have it - it was supposed to be fixed by the same
> +		 * time we stopped using straps. Assume it's there.
>  		 */
>  		found = intel_de_read(dev_priv, DDI_BUF_CTL(PORT_A)) & DDI_INIT_DISPLAY_DETECTED;
>  		/* WaIgnoreDDIAStrap: skl */

-- 
Jani Nikula, Intel Open Source Graphics Center