linux-kernel - [PATCH v13 33/56] touchscreen: sur40: Stop direct calls to queue num

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Message-Id: <20231019125222.21370-34-benjamin.gaignard@collabora.com>
Date:   Thu, 19 Oct 2023 14:51:59 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     mchehab@...nel.org, tfiga@...omium.org, m.szyprowski@...sung.com,
        ming.qian@....com, ezequiel@...guardiasur.com.ar,
        p.zabel@...gutronix.de, gregkh@...uxfoundation.org,
        hverkuil-cisco@...all.nl, nicolas.dufresne@...labora.com
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, linux-staging@...ts.linux.dev,
        kernel@...labora.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Henrik Rydberg <rydberg@...math.org>
Subject: [PATCH v13 33/56] touchscreen: sur40: Stop direct calls to queue num_buffers field

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@...labora.com>
CC: Dmitry Torokhov <dmitry.torokhov@...il.com>
CC: Henrik Rydberg <rydberg@...math.org>
---
 drivers/input/touchscreen/sur40.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index 8ddb3f7d307a..e7d2a52169a0 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -847,9 +847,10 @@ static int sur40_queue_setup(struct vb2_queue *q,
 		       unsigned int sizes[], struct device *alloc_devs[])
 {
 	struct sur40_state *sur40 = vb2_get_drv_priv(q);
+	unsigned int q_num_bufs = vb2_get_num_buffers(q);
 
-	if (q->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - q->num_buffers;
+	if (q_num_bufs + *nbuffers < 3)
+		*nbuffers = 3 - q_num_bufs;
 
 	if (*nplanes)
 		return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0;
-- 
2.39.2