linux-kernel - [PATCH v7 3/5] media: verisilicon: Do not set ctx->bit_depth in hantro_try

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Message-Id: <20230131130327.776899-4-benjamin.gaignard@collabora.com>
Date:   Tue, 31 Jan 2023 14:03:25 +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
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 v7 3/5] media: verisilicon: Do not set ctx->bit_depth in hantro_try_ctrl()

In hantro_try_ctrl() we should only check the values inside
control parameters and not set ctx->bit_depth. That must
be done in controls set function.
Create a set control function for hevc where ctx->bit_depth is
set at the right time.

Fixes: dc39473d0340 ("media: hantro: imx8m: Enable 10bit decoding")

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
---
version 7:
- Remove unused ctx variable in hantro_try_ctrl().

 .../media/platform/verisilicon/hantro_drv.c   | 32 ++++++++++++++-----
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index 8cb4a68c9119..6d8bc55ea627 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -251,11 +251,6 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
 
 static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
 {
-	struct hantro_ctx *ctx;
-
-	ctx = container_of(ctrl->handler,
-			   struct hantro_ctx, ctrl_handler);
-
 	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
 		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
 
@@ -274,8 +269,6 @@ static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
 		if (sps->bit_depth_luma_minus8 != 0 && sps->bit_depth_luma_minus8 != 2)
 			/* Only 8-bit and 10-bit are supported */
 			return -EINVAL;
-
-		ctx->bit_depth = sps->bit_depth_luma_minus8 + 8;
 	} else if (ctrl->id == V4L2_CID_STATELESS_VP9_FRAME) {
 		const struct v4l2_ctrl_vp9_frame *dec_params = ctrl->p_new.p_vp9_frame;
 
@@ -324,6 +317,24 @@ static int hantro_vp9_s_ctrl(struct v4l2_ctrl *ctrl)
 	return 0;
 }
 
+static int hantro_hevc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct hantro_ctx *ctx;
+
+	ctx = container_of(ctrl->handler,
+			   struct hantro_ctx, ctrl_handler);
+
+	switch (ctrl->id) {
+	case V4L2_CID_STATELESS_HEVC_SPS:
+		ctx->bit_depth = ctrl->p_new.p_hevc_sps->bit_depth_luma_minus8 + 8;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static const struct v4l2_ctrl_ops hantro_ctrl_ops = {
 	.try_ctrl = hantro_try_ctrl,
 };
@@ -336,6 +347,11 @@ static const struct v4l2_ctrl_ops hantro_vp9_ctrl_ops = {
 	.s_ctrl = hantro_vp9_s_ctrl,
 };
 
+static const struct v4l2_ctrl_ops hantro_hevc_ctrl_ops = {
+	.try_ctrl = hantro_try_ctrl,
+	.s_ctrl = hantro_hevc_s_ctrl,
+};
+
 #define HANTRO_JPEG_ACTIVE_MARKERS	(V4L2_JPEG_ACTIVE_MARKER_APP0 | \
 					 V4L2_JPEG_ACTIVE_MARKER_COM | \
 					 V4L2_JPEG_ACTIVE_MARKER_DQT | \
@@ -470,7 +486,7 @@ static const struct hantro_ctrl controls[] = {
 		.codec = HANTRO_HEVC_DECODER,
 		.cfg = {
 			.id = V4L2_CID_STATELESS_HEVC_SPS,
-			.ops = &hantro_ctrl_ops,
+			.ops = &hantro_hevc_ctrl_ops,
 		},
 	}, {
 		.codec = HANTRO_HEVC_DECODER,
-- 
2.34.1