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* [PATCH] drm/psr: Fix missed entry in PSR setup time table.
@ 2018-05-11  0:54 Dhinakaran Pandiyan
  2018-05-11  1:35 ` ✓ Fi.CI.BAT: success for " Patchwork
                   ` (3 more replies)
  0 siblings, 4 replies; 7+ messages in thread
From: Dhinakaran Pandiyan @ 2018-05-11  0:54 UTC (permalink / raw)
  To: intel-gfx
  Cc: Dhinakaran Pandiyan, stable, Ville Syrjälä,
	Jose Roberto de Souza

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>
Signed-off-by: Dhinakaran Pandiyan <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),
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2018-05-18 17:46 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-05-11  0:54 [PATCH] drm/psr: Fix missed entry in PSR setup time table Dhinakaran Pandiyan
2018-05-11  1:35 ` ✓ Fi.CI.BAT: success for " Patchwork
2018-05-11  2:24 ` ✗ Fi.CI.IGT: failure " Patchwork
2018-05-11 18:03 ` [PATCH] " Souza, Jose
2018-05-11 19:46   ` Dhinakaran Pandiyan
2018-05-18 17:45 ` Tarun Vyas
2018-05-18 17:45   ` [Intel-gfx] " Tarun Vyas

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