diff options
Diffstat (limited to 'meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4216-drm-amd-display-Check-SCRATCH-reg-to-determine-S3-re.patch')
| -rw-r--r-- | meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4216-drm-amd-display-Check-SCRATCH-reg-to-determine-S3-re.patch | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4216-drm-amd-display-Check-SCRATCH-reg-to-determine-S3-re.patch b/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4216-drm-amd-display-Check-SCRATCH-reg-to-determine-S3-re.patch deleted file mode 100644 index dea707bd..00000000 --- a/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4216-drm-amd-display-Check-SCRATCH-reg-to-determine-S3-re.patch +++ /dev/null @@ -1,74 +0,0 @@ -From f2d21896f604143f0ffef1bdb8d138d9e0f22642 Mon Sep 17 00:00:00 2001 -From: Yongqiang Sun <yongqiang.sun@amd.com> -Date: Fri, 6 Apr 2018 21:38:10 -0400 -Subject: [PATCH 4216/5725] drm/amd/display: Check SCRATCH reg to determine S3 - resume. - -Use lid state only to determine fast boot optimization is not enough. -For S3/Resume, due to bios isn't involved in boot, eDP wasn't -light up, while lid state is open, if do fast boot optimization, -eDP panel will skip enable link and result in black screen after boot. -And becasue of bios isn't involved, no matter UEFI or Legacy boot, -BIOS_SCRATCH_3 value should be 0, use this to determine the case. - -Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> -Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> -Acked-by: Harry Wentland <harry.wentland@amd.com> ---- - .../amd/display/dc/dce110/dce110_hw_sequencer.c | 33 ++++++++++++++++++---- - 1 file changed, 28 insertions(+), 5 deletions(-) - -diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c -index 430d67b..3920310 100644 ---- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c -+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c -@@ -1526,18 +1526,41 @@ static struct dc_link *get_link_for_edp_not_in_use( - */ - void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) - { -- /* check eDP lid state: -- * If lid is open, vbios already light up eDP, so we can leverage vbios and skip eDP -- * programming -+ /* check eDP lid state and BIOS_SCRATCH_3 to determine fast boot optimization -+ * UEFI boot -+ * edp_active_status_from_scratch fast boot optimization -+ * S4/S5 resume: -+ * Lid Open true true -+ * Lid Close false false -+ * -+ * S3/ resume: -+ * Lid Open false false -+ * Lid Close false false -+ * -+ * Legacy boot: -+ * edp_active_status_from_scratch fast boot optimization -+ * S4/S resume: -+ * Lid Open true true -+ * Lid Close true false -+ * -+ * S3/ resume: -+ * Lid Open false false -+ * Lid Close false false - */ -+ struct dc_bios *dcb = dc->ctx->dc_bios; - bool lid_state_closed = is_eDP_lid_closed(context); - struct dc_link *edp_link_to_turnoff = NULL; -+ bool edp_active_status_from_scratch = -+ (dcb->funcs->get_vga_enabled_displays(dc->ctx->dc_bios) == ATOM_DISPLAY_LCD1_ACTIVE); - -+ /*Lid open*/ - if (!lid_state_closed) { - edp_link_to_turnoff = get_link_for_edp_not_in_use(dc, context); - -- /* if OS doesn't light up eDP and eDP link is available, we want to disable */ -- if (!edp_link_to_turnoff) -+ /* if OS doesn't light up eDP and eDP link is available, we want to disable -+ * If resume from S4/S5, should optimization. -+ */ -+ if (!edp_link_to_turnoff && edp_active_status_from_scratch) - dc->apply_edp_fast_boot_optimization = true; - } - --- -2.7.4 - |