On Fri, 11 May 2018, Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com> wrote:
> Entry corresponding to 220 us setup time was missing. I am not aware of
> any specific bug this fixes, but this could potentially result in enabling
> PSR on a panel with a higher setup time requirement than supported by the
> hardware.
>
> I verified the value is present in eDP spec versions 1.3, 1.4 and 1.4a.
>
> Fixes: 6608804b3d7f ("drm/dp: Add drm_dp_psr_setup_time()")
> Cc: sta...@vger.kernel.org
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Cc: Jose Roberto de Souza <jose.so...@intel.com>
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>Pushed to drm-misc-fixes with reviews picked up from the earlier posting [1]. Doesn't look like the function is used by anyone other than i915, so I didn't bother with further acks from non-Intel devs. Should be a straightforward fix anyway. BR, Jani. [1] http://mid.mail-archive.com/20180511005419.11199-1-dhinakaran.pandiyan@intel.com > --- > drivers/gpu/drm/drm_dp_helper.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c > index 36c7609a4bd5..a7ba602a43a8 100644 > --- a/drivers/gpu/drm/drm_dp_helper.c > +++ b/drivers/gpu/drm/drm_dp_helper.c > @@ -1159,6 +1159,7 @@ int drm_dp_psr_setup_time(const u8 > psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]) > static const u16 psr_setup_time_us[] = { > PSR_SETUP_TIME(330), > PSR_SETUP_TIME(275), > + PSR_SETUP_TIME(220), > PSR_SETUP_TIME(165), > PSR_SETUP_TIME(110), > PSR_SETUP_TIME(55), -- Jani Nikula, Intel Open Source Graphics Center _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
