mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 17:01:14 +00:00
62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
139 lines
4.3 KiB
Diff
139 lines
4.3 KiB
Diff
From 1cc9056759e1f500de5e401afd4b0acff90cc653 Mon Sep 17 00:00:00 2001
|
|
From: Jacopo Mondi <jacopo@jmondi.org>
|
|
Date: Sat, 9 May 2020 11:04:49 +0200
|
|
Subject: [PATCH] media: v4l2-fwnode: Add helper to parse device
|
|
properties
|
|
|
|
Add an helper function to parse common device properties in the same
|
|
way as v4l2_fwnode_endpoint_parse() parses common endpoint properties.
|
|
|
|
Parse the 'rotation' and 'orientation' properties from the firmware
|
|
interface.
|
|
|
|
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
|
|
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
|
|
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
|
|
|
|
Commit 344897ef1d9b33e246b64e255d807ca6c053f349 upstream
|
|
|
|
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
---
|
|
drivers/media/v4l2-core/v4l2-fwnode.c | 42 ++++++++++++++++++++++++
|
|
include/media/v4l2-fwnode.h | 47 +++++++++++++++++++++++++++
|
|
2 files changed, 89 insertions(+)
|
|
|
|
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
|
|
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
|
|
@@ -599,6 +599,48 @@ void v4l2_fwnode_put_link(struct v4l2_fw
|
|
}
|
|
EXPORT_SYMBOL_GPL(v4l2_fwnode_put_link);
|
|
|
|
+int v4l2_fwnode_device_parse(struct device *dev,
|
|
+ struct v4l2_fwnode_device_properties *props)
|
|
+{
|
|
+ struct fwnode_handle *fwnode = dev_fwnode(dev);
|
|
+ u32 val;
|
|
+ int ret;
|
|
+
|
|
+ memset(props, 0, sizeof(*props));
|
|
+
|
|
+ props->orientation = V4L2_FWNODE_PROPERTY_UNSET;
|
|
+ ret = fwnode_property_read_u32(fwnode, "orientation", &val);
|
|
+ if (!ret) {
|
|
+ switch (val) {
|
|
+ case V4L2_FWNODE_ORIENTATION_FRONT:
|
|
+ case V4L2_FWNODE_ORIENTATION_BACK:
|
|
+ case V4L2_FWNODE_ORIENTATION_EXTERNAL:
|
|
+ break;
|
|
+ default:
|
|
+ dev_warn(dev, "Unsupported device orientation: %u\n", val);
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ props->orientation = val;
|
|
+ dev_dbg(dev, "device orientation: %u\n", val);
|
|
+ }
|
|
+
|
|
+ props->rotation = V4L2_FWNODE_PROPERTY_UNSET;
|
|
+ ret = fwnode_property_read_u32(fwnode, "rotation", &val);
|
|
+ if (!ret) {
|
|
+ if (val >= 360) {
|
|
+ dev_warn(dev, "Unsupported device rotation: %u\n", val);
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ props->rotation = val;
|
|
+ dev_dbg(dev, "device rotation: %u\n", val);
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(v4l2_fwnode_device_parse);
|
|
+
|
|
static int
|
|
v4l2_async_notifier_fwnode_parse_endpoint(struct device *dev,
|
|
struct v4l2_async_notifier *notifier,
|
|
--- a/include/media/v4l2-fwnode.h
|
|
+++ b/include/media/v4l2-fwnode.h
|
|
@@ -110,6 +110,36 @@ struct v4l2_fwnode_endpoint {
|
|
};
|
|
|
|
/**
|
|
+ * V4L2_FWNODE_PROPERTY_UNSET - identify a non initialized property
|
|
+ *
|
|
+ * All properties in &struct v4l2_fwnode_device_properties are initialized
|
|
+ * to this value.
|
|
+ */
|
|
+#define V4L2_FWNODE_PROPERTY_UNSET (-1U)
|
|
+
|
|
+/**
|
|
+ * enum v4l2_fwnode_orientation - possible device orientation
|
|
+ * @V4L2_FWNODE_ORIENTATION_FRONT: device installed on the front side
|
|
+ * @V4L2_FWNODE_ORIENTATION_BACK: device installed on the back side
|
|
+ * @V4L2_FWNODE_ORIENTATION_EXTERNAL: device externally located
|
|
+ */
|
|
+enum v4l2_fwnode_orientation {
|
|
+ V4L2_FWNODE_ORIENTATION_FRONT,
|
|
+ V4L2_FWNODE_ORIENTATION_BACK,
|
|
+ V4L2_FWNODE_ORIENTATION_EXTERNAL
|
|
+};
|
|
+
|
|
+/**
|
|
+ * struct v4l2_fwnode_device_properties - fwnode device properties
|
|
+ * @orientation: device orientation. See &enum v4l2_fwnode_orientation
|
|
+ * @rotation: device rotation
|
|
+ */
|
|
+struct v4l2_fwnode_device_properties {
|
|
+ enum v4l2_fwnode_orientation orientation;
|
|
+ unsigned int rotation;
|
|
+};
|
|
+
|
|
+/**
|
|
* struct v4l2_fwnode_link - a link between two endpoints
|
|
* @local_node: pointer to device_node of this endpoint
|
|
* @local_port: identifier of the port this endpoint belongs to
|
|
@@ -234,6 +264,23 @@ int v4l2_fwnode_parse_link(struct fwnode
|
|
void v4l2_fwnode_put_link(struct v4l2_fwnode_link *link);
|
|
|
|
/**
|
|
+ * v4l2_fwnode_device_parse() - parse fwnode device properties
|
|
+ * @dev: pointer to &struct device
|
|
+ * @props: pointer to &struct v4l2_fwnode_device_properties where to store the
|
|
+ * parsed properties values
|
|
+ *
|
|
+ * This function parses and validates the V4L2 fwnode device properties from the
|
|
+ * firmware interface, and fills the @struct v4l2_fwnode_device_properties
|
|
+ * provided by the caller.
|
|
+ *
|
|
+ * Return:
|
|
+ * % 0 on success
|
|
+ * %-EINVAL if a parsed property value is not valid
|
|
+ */
|
|
+int v4l2_fwnode_device_parse(struct device *dev,
|
|
+ struct v4l2_fwnode_device_properties *props);
|
|
+
|
|
+/**
|
|
* typedef parse_endpoint_func - Driver's callback function to be called on
|
|
* each V4L2 fwnode endpoint.
|
|
*
|