linux-kernel - [PATCH v9 6/6] media: verisilicon: VP9: Only propose 10 bits compatible pixels formats

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Date:   Mon, 20 Feb 2023 11:48:49 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     ezequiel@...guardiasur.com.ar, p.zabel@...gutronix.de,
        mchehab@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        hverkuil-cisco@...all.nl, nicolas.dufresne@...labora.co.uk,
        robert.mader@...labora.com
Cc:     linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel@...labora.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH v9 6/6] media: verisilicon: VP9: Only propose 10 bits compatible pixels formats

When decoding a 10bits bitstreams VP9 driver should only expose
10bits pixel formats.
To fulfill this requirement it is needed to call hantro_reset_raw_fmt()
when bit depth change and to correctly set match_depth in pixel formats
enumeration.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
---
version 9:
- Fix brackets

 drivers/media/platform/verisilicon/hantro_drv.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index 7d452f1afaae..d20e62c025ae 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -307,9 +307,14 @@ static int hantro_vp9_s_ctrl(struct v4l2_ctrl *ctrl)
 			   struct hantro_ctx, ctrl_handler);
 
 	switch (ctrl->id) {
-	case V4L2_CID_STATELESS_VP9_FRAME:
-		ctx->bit_depth = ctrl->p_new.p_vp9_frame->bit_depth;
-		break;
+	case V4L2_CID_STATELESS_VP9_FRAME: {
+		int bit_depth = ctrl->p_new.p_vp9_frame->bit_depth;
+
+		if (ctx->bit_depth == bit_depth)
+			return 0;
+
+		return hantro_reset_raw_fmt(ctx, bit_depth);
+	}
 	default:
 		return -EINVAL;
 	}
-- 
2.34.1