4.16-stable review patch. If anyone has any objections, please let me know.
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From: Dhinakaran Pandiyan dhinakaran.pandiyan@intel.com
commit bdcc02cf1bb508fc700df7662f55058f651f2621 upstream.
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: stable@vger.kernel.org Cc: Ville Syrjälä ville.syrjala@linux.intel.com Cc: Jose Roberto de Souza jose.souza@intel.com Cc: dri-devel@lists.freedesktop.org Reviewed-by: José Roberto de Souza jose.souza@intel.com Reviewed-by: Tarun Vyas tarun.vyas@intel.com Signed-off-by: Dhinakaran Pandiyan dhinakaran.pandiyan@intel.com Signed-off-by: Jani Nikula jani.nikula@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20180511195145.3829-3-dhinakar... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/drm_dp_helper.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1141,6 +1141,7 @@ int drm_dp_psr_setup_time(const u8 psr_c 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),