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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0979-drm-amd-display-increase-polling-interval-for-fbc-st.patch47
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0979-drm-amd-display-increase-polling-interval-for-fbc-st.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0979-drm-amd-display-increase-polling-interval-for-fbc-st.patch
new file mode 100644
index 00000000..cc9a92fa
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0979-drm-amd-display-increase-polling-interval-for-fbc-st.patch
@@ -0,0 +1,47 @@
+From 7212b069a63e339e185b5d3840ecf43da84b36f9 Mon Sep 17 00:00:00 2001
+From: Roman Li <Roman.Li@amd.com>
+Date: Wed, 16 Aug 2017 19:06:49 -0400
+Subject: [PATCH 0979/4131] drm/amd/display: increase polling interval for fbc
+ status update
+
+1.Fixing error message:
+"wait counter exceeded, changes to HW not applied"
+2. Added "FBC status changed to 0/1" logs
+
+Signed-off-by: Roman Li <Roman.Li@amd.com>
+Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
+Acked-by: Harry Wentland <Harry.Wentland@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
+index 9759d8e..2e97e57 100644
+--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
++++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
+@@ -115,7 +115,7 @@ static void wait_for_fbc_state_changed(
+ FBC_STATUS,
+ FBC_ENABLE_STATUS) == enabled)
+ break;
+- udelay(10);
++ msleep(10);
+ counter++;
+ }
+
+@@ -124,7 +124,13 @@ static void wait_for_fbc_state_changed(
+ cp110->base.ctx->logger, LOG_WARNING,
+ "%s: wait counter exceeded, changes to HW not applied",
+ __func__);
++ } else {
++ dm_logger_write(
++ cp110->base.ctx->logger, LOG_SYNC,
++ "FBC status changed to %d", enabled);
+ }
++
++
+ }
+
+ void dce110_compressor_power_up_fbc(struct compressor *compressor)
+--
+2.7.4
+