From: Andrey Konovalov <andrey.konovalov@linaro.org>
To: mchehab@kernel.org, sakari.ailus@iki.fi,
manivannan.sadhasivam@linaro.org
Cc: devicetree@vger.kernel.org, c.barrett@framos.com,
linux-kernel@vger.kernel.org, a.brela@framos.com,
peter.griffin@linaro.org,
Andrey Konovalov <andrey.konovalov@linaro.org>,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org
Subject: [PATCH v3 10/10] media: i2c: imx290: set bus_type before calling v4l2_fwnode_endpoint_alloc_parse()
Date: Sun, 24 May 2020 22:25:05 +0300 [thread overview]
Message-ID: <20200524192505.20682-11-andrey.konovalov@linaro.org> (raw)
In-Reply-To: <20200524192505.20682-1-andrey.konovalov@linaro.org>
The bus_type field of v4l2_fwnode_endpoint structure passed as the argument
to v4l2_fwnode_endpoint_alloc_parse() function must be initiaized.
Set it to V4L2_MBUS_CSI2_DPHY, and check for -ENXIO which is returned
when the requested media bus type doesn't match the fwnode.
Also remove v4l2_fwnode_endpoint field from struct imx290 as it is only
needed in the probe function: use the local variable for this purpose.
Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
---
drivers/media/i2c/imx290.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/drivers/media/i2c/imx290.c b/drivers/media/i2c/imx290.c
index ee5c95cf64f3..05a3d897614e 100644
--- a/drivers/media/i2c/imx290.c
+++ b/drivers/media/i2c/imx290.c
@@ -74,7 +74,6 @@ struct imx290 {
u8 bpp;
struct v4l2_subdev sd;
- struct v4l2_fwnode_endpoint ep;
struct media_pad pad;
struct v4l2_mbus_framefmt current_format;
const struct imx290_mode *current_mode;
@@ -887,6 +886,10 @@ static int imx290_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct fwnode_handle *endpoint;
+ /* Only CSI2 is supported for now: */
+ struct v4l2_fwnode_endpoint ep = {
+ .bus_type = V4L2_MBUS_CSI2_DPHY
+ };
struct imx290 *imx290;
u32 xclk_freq;
int ret;
@@ -908,15 +911,18 @@ static int imx290_probe(struct i2c_client *client)
return -EINVAL;
}
- ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &imx290->ep);
+ ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &ep);
fwnode_handle_put(endpoint);
- if (ret) {
+ if (ret == -ENXIO) {
+ dev_err(dev, "Unsupported bus type, should be CSI2\n");
+ goto free_err;
+ } else if (ret) {
dev_err(dev, "Parsing endpoint node failed\n");
goto free_err;
}
/* Get number of data lanes */
- imx290->nlanes = imx290->ep.bus.mipi_csi2.num_data_lanes;
+ imx290->nlanes = ep.bus.mipi_csi2.num_data_lanes;
if (imx290->nlanes != 2 && imx290->nlanes != 4) {
dev_err(dev, "Invalid data lanes: %d\n", imx290->nlanes);
ret = -EINVAL;
@@ -925,19 +931,12 @@ static int imx290_probe(struct i2c_client *client)
dev_dbg(dev, "Using %u data lanes\n", imx290->nlanes);
- if (!imx290->ep.nr_of_link_frequencies) {
+ if (!ep.nr_of_link_frequencies) {
dev_err(dev, "link-frequency property not found in DT\n");
ret = -EINVAL;
goto free_err;
}
- /* Only CSI2 is supported for now */
- if (imx290->ep.bus_type != V4L2_MBUS_CSI2_DPHY) {
- dev_err(dev, "Unsupported bus type, should be CSI2\n");
- ret = -EINVAL;
- goto free_err;
- }
-
/* get system clock (xclk) */
imx290->xclk = devm_clk_get(dev, "xclk");
if (IS_ERR(imx290->xclk)) {
@@ -1063,7 +1062,7 @@ static int imx290_probe(struct i2c_client *client)
pm_runtime_enable(dev);
pm_runtime_idle(dev);
- v4l2_fwnode_endpoint_free(&imx290->ep);
+ v4l2_fwnode_endpoint_free(&ep);
return 0;
@@ -1073,7 +1072,7 @@ static int imx290_probe(struct i2c_client *client)
v4l2_ctrl_handler_free(&imx290->ctrls);
mutex_destroy(&imx290->lock);
free_err:
- v4l2_fwnode_endpoint_free(&imx290->ep);
+ v4l2_fwnode_endpoint_free(&ep);
return ret;
}
--
2.17.1
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prev parent reply other threads:[~2020-05-24 19:32 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-24 19:24 [PATCH v3 00/10] Improvements to IMX290 CMOS driver Andrey Konovalov
2020-05-24 19:24 ` [PATCH v3 01/10] media: i2c: imx290: set the format before VIDIOC_SUBDEV_G_FMT is called Andrey Konovalov
2020-05-24 19:24 ` [PATCH v3 02/10] media: i2c: imx290: fix the order of the args in SET_RUNTIME_PM_OPS() Andrey Konovalov
2020-05-24 19:24 ` [PATCH v3 03/10] media: i2c: imx290: fix reset GPIO pin handling Andrey Konovalov
2020-05-24 19:24 ` [PATCH v3 04/10] media: i2c: imx290: Add support for 2 data lanes Andrey Konovalov
2020-05-26 9:01 ` Sakari Ailus
2020-05-26 9:14 ` Andrey Konovalov
2020-05-26 9:16 ` Sakari Ailus
2020-05-24 19:25 ` [PATCH v3 05/10] media: i2c: imx290: Add configurable link frequency and pixel rate Andrey Konovalov
2020-05-26 9:12 ` Sakari Ailus
2020-05-26 9:27 ` Andrey Konovalov
2020-05-26 9:58 ` Sakari Ailus
2020-05-27 14:43 ` kbuild test robot
2020-05-24 19:25 ` [PATCH v3 06/10] media: i2c: imx290: Add support for test pattern generation Andrey Konovalov
2020-05-24 19:25 ` [PATCH v3 07/10] media: i2c: imx290: Add RAW12 mode support Andrey Konovalov
2020-05-26 16:05 ` Dave Stevenson
2020-05-27 8:42 ` Andrey Konovalov
2020-05-24 19:25 ` [PATCH v3 08/10] media: i2c: imx290: Add support to enumerate all frame sizes Andrey Konovalov
2020-05-26 9:17 ` Sakari Ailus
2020-06-07 16:28 ` Andrey Konovalov
2020-06-08 8:00 ` Sakari Ailus
2020-05-24 19:25 ` [PATCH v3 09/10] media: i2c: imx290: Move the settle time delay out of loop Andrey Konovalov
2020-05-24 19:25 ` Andrey Konovalov [this message]
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