From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA78837702E; Sat, 28 Feb 2026 17:35:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300158; cv=none; b=BVeWQ0PyLJCXRhN8jotZcRn0PQgkKec9KnylzIlgwO5TEc2yvig5Zkc5fnNSM3DOZY8vRDqLql2ewJoIeSWUOxfE9f2A4FS1Wfr0KQAsXb3puflw2y52xEEjUuqBvu88UToajskXG1UQFyJziccN3szYfBvpoODxF7QCWYZImc8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300158; c=relaxed/simple; bh=fqo1tRZ40B/lwAWQfkdtK0n9wxzpxII4GRCGgGu/60k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Wu2O8GDA5kpHYjxLoqPKF+5jj/Qp3DRtTWfFOd888cZMqi3rYt28JdnjkuDJhTze3Eg9e8C7ClI41qpdDsQp9fo74jmTgwJsy1jz9PaN5CdNZEeG7Up6rHgtfvIb39t44yn8/OVod6iZQTG8zzxbGxHQkMbP0ZjroiD2gbune7M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RDZkWZq8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RDZkWZq8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27148C2BCB2; Sat, 28 Feb 2026 17:35:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300157; bh=fqo1tRZ40B/lwAWQfkdtK0n9wxzpxII4GRCGgGu/60k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RDZkWZq8qVLEuK/UM6LiESC/pfsSS945k9xJ7AizJKBN+hOQ1VgFUbQ1RYNfQPyXc Pazh2tg9EM9Qj/CK68iQpGKRU/Wkt4fhn977fqa1cg6yYJ7QIEXjew7o8+D691m9Bc parGengvTyW6Oy2G2lZTl9yNAZLcjRGy9B1rgCjB9Zoh9gweN3skAULBRb5SG3eg0f P2IWunfO2T3yohSHwG0Qy97RnXxuT/i5wZCSE3B3uL0Ibi9PFFBbL0dTkE9CHlJIta DYGP5uGMu5UnEO6TyEcAwzzXps7+x5RadqajdAdm0k4k6YHUeV0Xdx53GjoYbVOKJ0 ukNC4/D7wNvfw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ming Qian , Nicolas Dufresne , Hans Verkuil , Sasha Levin Subject: [PATCH 6.19 176/844] media: amphion: Clear last_buffer_dequeued flag for DEC_CMD_START Date: Sat, 28 Feb 2026 12:21:29 -0500 Message-ID: <20260228173244.1509663-177-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Ming Qian [ Upstream commit d85f3207d75df6d7a08be6526b15ff398668206c ] The V4L2_DEC_CMD_START command may be used to handle the dynamic source change, which will triggers an implicit decoder drain. The last_buffer_dequeued flag is set in the implicit decoder drain, so driver need to clear it to continue the following decoding flow. Signed-off-by: Ming Qian Reviewed-by: Nicolas Dufresne Signed-off-by: Nicolas Dufresne Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/platform/amphion/vdec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/platform/amphion/vdec.c b/drivers/media/platform/amphion/vdec.c index c0d2aabb9e0e3..f25dbcebdccf6 100644 --- a/drivers/media/platform/amphion/vdec.c +++ b/drivers/media/platform/amphion/vdec.c @@ -724,6 +724,7 @@ static int vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd switch (cmd->cmd) { case V4L2_DEC_CMD_START: vdec_cmd_start(inst); + vb2_clear_last_buffer_dequeued(v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx)); break; case V4L2_DEC_CMD_STOP: vdec_cmd_stop(inst); -- 2.51.0