linux-kernel - [PATCH] media: verisilicon: HEVC: Initialize start

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Message-ID: <20250120081052.63224-1-benjamin.gaignard@collabora.com>
Date: Mon, 20 Jan 2025 09:10:52 +0100
From: Benjamin Gaignard <benjamin.gaignard@...labora.com>
To: nicolas.dufresne@...labora.com,
	p.zabel@...gutronix.de,
	mchehab@...nel.org
Cc: linux-media@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH] media: verisilicon: HEVC: Initialize start_bit field

Always set start_bit field to 0, if not it could lead to corrupted frames
specially when decoding VP9 bitstreams at the same time since VP9 driver
set it for it own purpose.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
---
 drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
index 85a44143b378..0e212198dd65 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
@@ -518,6 +518,7 @@ static void set_buffers(struct hantro_ctx *ctx)
 	hantro_reg_write(vpu, &g2_stream_len, src_len);
 	hantro_reg_write(vpu, &g2_strm_buffer_len, src_buf_len);
 	hantro_reg_write(vpu, &g2_strm_start_offset, 0);
+	hantro_reg_write(vpu, &g2_start_bit, 0);
 	hantro_reg_write(vpu, &g2_write_mvs_e, 1);
 
 	hantro_write_addr(vpu, G2_TILE_SIZES_ADDR, ctx->hevc_dec.tile_sizes.dma);
-- 
2.43.0