bcm27xx: import latest patches from the RPi foundation

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>

1 files changed, 138 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0907-media-v4l2-fwnode-Add-helper-to-parse-device-propert.patch b/target/linux/bcm27xx/patches-5.4/950-0907-media-v4l2-fwnode-Add-helper-to-parse-device-propert.patch
new file mode 100644
index 0000000000..d0d21fc7f2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0907-media-v4l2-fwnode-Add-helper-to-parse-device-propert.patch
@@ -0,0 +1,138 @@
+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.
+  *