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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4475-drm-amd-display-Add-hubp-clock-status-in-DTN-log-for.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4475-drm-amd-display-Add-hubp-clock-status-in-DTN-log-for.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4475-drm-amd-display-Add-hubp-clock-status-in-DTN-log-for.patch
new file mode 100644
index 00000000..2e708fec
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4475-drm-amd-display-Add-hubp-clock-status-in-DTN-log-for.patch
@@ -0,0 +1,37 @@
+From d6aad171628f54a3c309e4007e94fa31cb6bfae9 Mon Sep 17 00:00:00 2001
+From: "Leo (Hanghong) Ma" <hanghong.ma@amd.com>
+Date: Fri, 25 Oct 2019 09:40:13 -0400
+Subject: [PATCH 4475/4736] drm/amd/display: Add hubp clock status in DTN log
+ for Navi
+
+[Why]
+For debug purpose, we need to check HUBP_CLOCK_ENABLE in DTN
+log debugfs on Navi.
+
+[How]
+Add related register read in dcn20_hubp.c.
+
+Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
+Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
+Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
+index 69e2aae42394..391f0629b955 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
++++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
+@@ -1204,6 +1204,9 @@ void hubp2_read_state_common(struct hubp *hubp)
+ HUBP_TTU_DISABLE, &s->ttu_disable,
+ HUBP_UNDERFLOW_STATUS, &s->underflow_status);
+
++ REG_GET(HUBP_CLK_CNTL,
++ HUBP_CLOCK_ENABLE, &s->clock_en);
++
+ REG_GET(DCN_GLOBAL_TTU_CNTL,
+ MIN_TTU_VBLANK, &s->min_ttu_vblank);
+
+--
+2.17.1
+