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Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0306-drm-amd-display-increase-timeout-for-dmif-dealloc.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0306-drm-amd-display-increase-timeout-for-dmif-dealloc.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0306-drm-amd-display-increase-timeout-for-dmif-dealloc.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0306-drm-amd-display-increase-timeout-for-dmif-dealloc.patch new file mode 100644 index 00000000..d8762d85 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0306-drm-amd-display-increase-timeout-for-dmif-dealloc.patch @@ -0,0 +1,35 @@ +From 67191984f4a466bd7d48410762e79aebbfc0d226 Mon Sep 17 00:00:00 2001 +From: Roman Li <Roman.Li@amd.com> +Date: Fri, 24 Mar 2017 16:26:09 -0400 +Subject: [PATCH 0306/4131] drm/amd/display: increase timeout for dmif dealloc + +In some use-cases, e.g. multiple 4K displays, +exisitng wait time for reg update of 30msec timed out +during mode setiing that sometimes resulted in system bad state +as we continue without waiting for registry update complete. +Increasing timeout to 35msec fixes that problem. + +Signed-off-by: Roman Li <Roman.Li@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c b/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c +index 7acd871..884f453 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c ++++ b/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c +@@ -524,7 +524,7 @@ void dce_mem_input_free_dmif(struct mem_input *mi, + + REG_WAIT(DMIF_BUFFER_CONTROL, + DMIF_BUFFERS_ALLOCATION_COMPLETED, 1, +- 10, 0xBB8); ++ 10, 3500); + + if (mi->wa.single_head_rdreq_dmif_limit) { + uint32_t eanble = (total_stream_num > 1) ? 0 : +-- +2.7.4 + |