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From:   Benjamin Gaignard <benjamin.gaignard@collabora.com>
To:     mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com,
        ming.qian@nxp.com, ezequiel@vanguardiasur.com.ar,
        p.zabel@pengutronix.de, gregkh@linuxfoundation.org,
        hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com
Cc:     linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org,
        linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev,
        kernel@collabora.com,
        Benjamin Gaignard <benjamin.gaignard@collabora.com>,
        "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Subject: [PATCH v13 38/56] media: ti: Stop direct calls to queue num_buffers field
Date:   Thu, 19 Oct 2023 14:52:04 +0200
Message-Id: <20231019125222.21370-39-benjamin.gaignard@collabora.com>
In-Reply-To: <20231019125222.21370-1-benjamin.gaignard@collabora.com>
References: <20231019125222.21370-1-benjamin.gaignard@collabora.com>
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Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
This allows us to change how the number of buffers is computed in the
future.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
CC: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
---
 drivers/media/platform/ti/am437x/am437x-vpfe.c   | 5 +++--
 drivers/media/platform/ti/cal/cal-video.c        | 5 +++--
 drivers/media/platform/ti/davinci/vpif_capture.c | 5 +++--
 drivers/media/platform/ti/davinci/vpif_display.c | 5 +++--
 drivers/media/platform/ti/omap/omap_vout.c       | 5 +++--
 5 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/media/platform/ti/am437x/am437x-vpfe.c b/drivers/media/platform/ti/am437x/am437x-vpfe.c
index 5fa2ea9025d9..f18acf9286a2 100644
--- a/drivers/media/platform/ti/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/ti/am437x/am437x-vpfe.c
@@ -1771,9 +1771,10 @@ static int vpfe_queue_setup(struct vb2_queue *vq,
 {
 	struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
 	unsigned size = vpfe->fmt.fmt.pix.sizeimage;
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 
-	if (vq->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < 3)
+		*nbuffers = 3 - q_num_bufs;
 
 	if (*nplanes) {
 		if (sizes[0] < size)
diff --git a/drivers/media/platform/ti/cal/cal-video.c b/drivers/media/platform/ti/cal/cal-video.c
index a8abcd0fee17..94e67c057a20 100644
--- a/drivers/media/platform/ti/cal/cal-video.c
+++ b/drivers/media/platform/ti/cal/cal-video.c
@@ -603,9 +603,10 @@ static int cal_queue_setup(struct vb2_queue *vq,
 {
 	struct cal_ctx *ctx = vb2_get_drv_priv(vq);
 	unsigned int size = ctx->v_fmt.fmt.pix.sizeimage;
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 
-	if (vq->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < 3)
+		*nbuffers = 3 - q_num_bufs;
 
 	if (*nplanes) {
 		if (sizes[0] < size)
diff --git a/drivers/media/platform/ti/davinci/vpif_capture.c b/drivers/media/platform/ti/davinci/vpif_capture.c
index 99fae8830c41..fc42b4bc37e6 100644
--- a/drivers/media/platform/ti/davinci/vpif_capture.c
+++ b/drivers/media/platform/ti/davinci/vpif_capture.c
@@ -113,6 +113,7 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
 	struct channel_obj *ch = vb2_get_drv_priv(vq);
 	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
 	unsigned size = common->fmt.fmt.pix.sizeimage;
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 
 	vpif_dbg(2, debug, "vpif_buffer_setup\n");
 
@@ -122,8 +123,8 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
 		size = sizes[0];
 	}
 
-	if (vq->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < 3)
+		*nbuffers = 3 - q_num_bufs;
 
 	*nplanes = 1;
 	sizes[0] = size;
diff --git a/drivers/media/platform/ti/davinci/vpif_display.c b/drivers/media/platform/ti/davinci/vpif_display.c
index f8ec2991c667..9dbab1003c1d 100644
--- a/drivers/media/platform/ti/davinci/vpif_display.c
+++ b/drivers/media/platform/ti/davinci/vpif_display.c
@@ -115,6 +115,7 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
 	struct channel_obj *ch = vb2_get_drv_priv(vq);
 	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
 	unsigned size = common->fmt.fmt.pix.sizeimage;
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 
 	if (*nplanes) {
 		if (sizes[0] < size)
@@ -122,8 +123,8 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
 		size = sizes[0];
 	}
 
-	if (vq->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < 3)
+		*nbuffers = 3 - q_num_bufs;
 
 	*nplanes = 1;
 	sizes[0] = size;
diff --git a/drivers/media/platform/ti/omap/omap_vout.c b/drivers/media/platform/ti/omap/omap_vout.c
index 4143274089c3..72ce903717d3 100644
--- a/drivers/media/platform/ti/omap/omap_vout.c
+++ b/drivers/media/platform/ti/omap/omap_vout.c
@@ -944,10 +944,11 @@ static int omap_vout_vb2_queue_setup(struct vb2_queue *vq,
 				     struct device *alloc_devs[])
 {
 	struct omap_vout_device *vout = vb2_get_drv_priv(vq);
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 	int size = vout->pix.sizeimage;
 
-	if (is_rotation_enabled(vout) && vq->num_buffers + *nbufs > VRFB_NUM_BUFS) {
-		*nbufs = VRFB_NUM_BUFS - vq->num_buffers;
+	if (is_rotation_enabled(vout) && q_num_bufs + *nbufs > VRFB_NUM_BUFS) {
+		*nbufs = VRFB_NUM_BUFS - q_num_bufs;
 		if (*nbufs == 0)
 			return -EINVAL;
 	}
-- 
2.39.2