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[73.202.231.77]) by smtp.googlemail.com with ESMTPSA id r20sm5367801pgo.74.2019.11.24.11.07.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 Nov 2019 11:07:27 -0800 (PST) From: Steve Longerbeam To: linux-media@vger.kernel.org Cc: Steve Longerbeam Subject: [PATCH v2 16/23] media: imx7-mipi-csis: Create media links in bound notifier Date: Sun, 24 Nov 2019 11:06:56 -0800 Message-Id: <20191124190703.12138-17-slongerbeam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191124190703.12138-1-slongerbeam@gmail.com> References: <20191124190703.12138-1-slongerbeam@gmail.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Implement a notifier bound op to register media links from the remote sub-device's source pad(s) to the mipi csi-2 receiver sink pad. Signed-off-by: Steve Longerbeam --- Changes in v2: Move notifier_to_csis_state() next to mipi_sd_to_csis_state(), remove unnecessary inline, and rename to mipi_notifier_to_csis_state(). Suggested-by: Rui Miguel Silva --- drivers/staging/media/imx/imx7-mipi-csis.c | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c index bbbc4d55fa9e..0ea6a48c2274 100644 --- a/drivers/staging/media/imx/imx7-mipi-csis.c +++ b/drivers/staging/media/imx/imx7-mipi-csis.c @@ -319,6 +319,12 @@ static int mipi_csis_dump_regs(struct csi_state *state) return 0; } +static struct csi_state * +mipi_notifier_to_csis_state(struct v4l2_async_notifier *n) +{ + return container_of(n, struct csi_state, notifier); +} + static struct csi_state *mipi_sd_to_csis_state(struct v4l2_subdev *sdev) { return container_of(sdev, struct csi_state, mipi_sd); @@ -850,6 +856,23 @@ static int mipi_csis_parse_endpoint(struct device *dev, return 0; } +static int mipi_csis_notify_bound(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *sd, + struct v4l2_async_subdev *asd) +{ + struct csi_state *state = mipi_notifier_to_csis_state(notifier); + struct media_pad *sink = &state->mipi_sd.entity.pads[CSIS_PAD_SINK]; + + return media_create_fwnode_pad_links(sink, + dev_fwnode(state->mipi_sd.dev), + &sd->entity, + dev_fwnode(sd->dev), 0); +} + +static const struct v4l2_async_notifier_operations mipi_csis_notify_ops = { + .bound = mipi_csis_notify_bound, +}; + static int mipi_csis_subdev_init(struct v4l2_subdev *mipi_sd, struct platform_device *pdev, const struct v4l2_subdev_ops *ops) @@ -888,6 +911,8 @@ static int mipi_csis_subdev_init(struct v4l2_subdev *mipi_sd, v4l2_async_notifier_init(&state->notifier); + state->notifier.ops = &mipi_csis_notify_ops; + ret = v4l2_async_register_fwnode_subdev(mipi_sd, &state->notifier, sizeof(struct v4l2_async_subdev), &sink_port, 1, -- 2.17.1