From:   Luca Ceresoli <luca.ceresoli@bootlin.com>
To:     Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Sowjanya Komatineni <skomatineni@nvidia.com>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Dmitry Osipenko <digetx@gmail.com>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc:     Luca Ceresoli <luca.ceresoli@bootlin.com>,
        linux-media@vger.kernel.org, linux-tegra@vger.kernel.org,
        dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
        Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
        Richard Leitner <richard.leitner@skidata.com>
Subject: [RESEND PATCH v4 05/21] staging: media: tegra-video: document tegra_channel_get_remote_source_subdev
Date:   Thu,  9 Mar 2023 15:43:04 +0100
Message-Id: <20230309144320.2937553-6-luca.ceresoli@bootlin.com>
In-Reply-To: <20230309144320.2937553-1-luca.ceresoli@bootlin.com>
References: <20230309144320.2937553-1-luca.ceresoli@bootlin.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Clarify what this function does.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>

---

Changed in v4:
 - Added review tags

No changes in v3
No changes in v2
---
 drivers/staging/media/tegra-video/vi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 9dba6e97ebdd..6aecdd28bd82 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -154,6 +154,9 @@ tegra_channel_get_remote_csi_subdev(struct tegra_vi_channel *chan)
 	return media_entity_to_v4l2_subdev(pad->entity);
 }
 
+/*
+ * Walk up the chain until the initial source (e.g. image sensor)
+ */
 struct v4l2_subdev *
 tegra_channel_get_remote_source_subdev(struct tegra_vi_channel *chan)
 {
-- 
2.34.1