diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0740-drm-amd-display-Clear-water-mark-change-request-bit-.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0740-drm-amd-display-Clear-water-mark-change-request-bit-.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0740-drm-amd-display-Clear-water-mark-change-request-bit-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0740-drm-amd-display-Clear-water-mark-change-request-bit-.patch new file mode 100644 index 00000000..9c69d810 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0740-drm-amd-display-Clear-water-mark-change-request-bit-.patch @@ -0,0 +1,41 @@ +From 871c103a9e0262f59018620a79a802385a40779d Mon Sep 17 00:00:00 2001 +From: Yongqiang Sun <yongqiang.sun@amd.com> +Date: Thu, 3 Aug 2017 15:46:10 -0400 +Subject: [PATCH 0740/4131] drm/amd/display: Clear water mark change request + bit before programing. + +Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +index 948aaeb..9165dc8 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +@@ -320,6 +320,9 @@ static void program_watermarks( + */ + uint32_t prog_wm_value; + ++ REG_UPDATE(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, ++ DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, 0); ++ + /* Repeat for water mark set A, B, C and D. */ + /* clock state A */ + prog_wm_value = convert_and_clamp(watermarks->a.urgent_ns, +@@ -518,8 +521,7 @@ static void program_watermarks( + + REG_UPDATE(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, + DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, 1); +- REG_UPDATE(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, +- DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, 0); ++ + REG_UPDATE(DCHUBBUB_ARB_SAT_LEVEL, + DCHUBBUB_ARB_SAT_LEVEL, 60 * refclk_mhz); + REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND, +-- +2.7.4 + |