[Intel-gfx] [PATCH stable-5.10 2/2] drm/i915: Skip vswing programming for TBT

[Greg KH]

On Mon, Feb 08, 2021 at 07:53:41PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> commit eaf5bfe37db871031232d2bf2535b6ca92afbad8 upstream.
> 
> In thunderbolt mode the PHY is owned by the thunderbolt controller.
> We are not supposed to touch it. So skip the vswing programming
> as well (we already skipped the other steps not applicable to TBT).
> 
> Touching this stuff could supposedly interfere with the PHY
> programming done by the thunderbolt controller.
> 
> Cc: stable at vger.kernel.org
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Link: https://patchwork.freedesktop.org/patch/msgid/20210128155948.13678-1-ville.syrjala@linux.intel.com
> Reviewed-by: Imre Deak <imre.deak at intel.com>
> (cherry picked from commit f8c6b615b921d8a1bcd74870f9105e62b0bceff3)
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
> (cherry picked from commit eaf5bfe37db871031232d2bf2535b6ca92afbad8)
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c | 6 ++++++
>  1 file changed, 6 insertions(+)

Both n ow queued up,t hanks.

greg k-h