diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0203-drm-vc4-Skip-ULPS-latching-when-we-re-in-that-ULPS-s.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0203-drm-vc4-Skip-ULPS-latching-when-we-re-in-that-ULPS-s.patch | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0203-drm-vc4-Skip-ULPS-latching-when-we-re-in-that-ULPS-s.patch b/target/linux/brcm2708/patches-4.14/950-0203-drm-vc4-Skip-ULPS-latching-when-we-re-in-that-ULPS-s.patch deleted file mode 100644 index b01062c1b2..0000000000 --- a/target/linux/brcm2708/patches-4.14/950-0203-drm-vc4-Skip-ULPS-latching-when-we-re-in-that-ULPS-s.patch +++ /dev/null @@ -1,28 +0,0 @@ -From c86b5da9e8c4ca0fedd6cdbfc70cdc5f61b5d711 Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Tue, 31 Oct 2017 11:33:10 -0700 -Subject: [PATCH 203/454] drm/vc4: Skip ULPS latching when we're in that ULPS - state already. - -It seems that trying to go from unlatched to unlatched will time out -waiting for STOP, and we can just skip that. - -Signed-off-by: Eric Anholt <eric@anholt.net> ---- - drivers/gpu/drm/vc4/vc4_dsi.c | 5 +++++ - 1 file changed, 5 insertions(+) - ---- a/drivers/gpu/drm/vc4/vc4_dsi.c -+++ b/drivers/gpu/drm/vc4/vc4_dsi.c -@@ -753,6 +753,11 @@ static void vc4_dsi_ulps(struct vc4_dsi - (dsi->lanes > 2 ? DSI1_STAT_PHY_D2_STOP : 0) | - (dsi->lanes > 3 ? DSI1_STAT_PHY_D3_STOP : 0)); - int ret; -+ bool ulps_currently_enabled = (DSI_PORT_READ(PHY_AFEC0) & -+ DSI_PORT_BIT(PHY_AFEC0_LATCH_ULPS)); -+ -+ if (ulps == ulps_currently_enabled) -+ return; - - DSI_PORT_WRITE(STAT, stat_ulps); - DSI_PORT_WRITE(PHYC, DSI_PORT_READ(PHYC) | phyc_ulps); |