[PATCH 02/16] drm/amd/display: based on flag reset z10 function pointer

Qingqing Zhuo qingqing.zhuo at amd.com
Fri Nov 19 19:43:25 UTC 2021


From: Charlene Liu <Charlene.Liu at amd.com>

[Why & How]
Per hardware requirements, add a flag to control
z10 enable/disable.

Reviewed-by: Sung joon Kim <Sungjoon.Kim at amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo at amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
index 05335a8c3c2d..e175b6cc0125 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
@@ -149,4 +149,9 @@ void dcn31_hw_sequencer_construct(struct dc *dc)
 		dc->hwss.init_hw = dcn20_fpga_init_hw;
 		dc->hwseq->funcs.init_pipes = NULL;
 	}
+	if (dc->debug.disable_z10) {
+		/*hw not support z10 or sw disable it*/
+		dc->hwss.z10_restore = NULL;
+		dc->hwss.z10_save_init = NULL;
+	}
 }
-- 
2.25.1



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