linux-kernel - [PATCH v0 1/6] media: chips-media: wave5: Fix to display gray color on screen

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Message-Id: <20241112021517.121-2-jackson.lee@chipsnmedia.com>
Date: Tue, 12 Nov 2024 11:15:12 +0900
From: "Jackson.lee" <jackson.lee@...psnmedia.com>
To: mchehab@...nel.org,
	nicolas@...fresne.ca,
	sebastian.fricke@...labora.com
Cc: linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	hverkuil@...all.nl,
	nas.chung@...psnmedia.com,
	lafley.kim@...psnmedia.com,
	b-brnich@...com,
	jackson.lee@...psnmedia.com
Subject: [PATCH v0 1/6] media: chips-media: wave5: Fix to display gray color on screen

When a decoder instance is created, W5_CMD_ERR_CONCEAL register should be
initialized to 0. If not set to 0, gray color can occasionally be displayed
on screen while decoding.

Signed-off-by: Jackson.lee <jackson.lee@...psnmedia.com>
Signed-off-by: Nas Chung <nas.chung@...psnmedia.com>
---
 drivers/media/platform/chips-media/wave5/wave5-hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/chips-media/wave5/wave5-hw.c b/drivers/media/platform/chips-media/wave5/wave5-hw.c
index c8a905994109..d94cf84c3ee5 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-hw.c
+++ b/drivers/media/platform/chips-media/wave5/wave5-hw.c
@@ -585,7 +585,7 @@ int wave5_vpu_build_up_dec_param(struct vpu_instance *inst,
 		vpu_write_reg(inst->dev, W5_CMD_NUM_CQ_DEPTH_M1,
 			      WAVE521_COMMAND_QUEUE_DEPTH - 1);
 	}
-
+	vpu_write_reg(inst->dev, W5_CMD_ERR_CONCEAL, 0);
 	ret = send_firmware_command(inst, W5_CREATE_INSTANCE, true, NULL, NULL);
 	if (ret) {
 		wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_work);
-- 
2.43.0