diff options
Diffstat (limited to 'target/linux/generic/pending-4.4/084-0003-usb-core-read-USB-ports-from-DT-in-the-usbport-LED-t.patch')
| -rw-r--r-- | target/linux/generic/pending-4.4/084-0003-usb-core-read-USB-ports-from-DT-in-the-usbport-LED-t.patch | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/target/linux/generic/pending-4.4/084-0003-usb-core-read-USB-ports-from-DT-in-the-usbport-LED-t.patch b/target/linux/generic/pending-4.4/084-0003-usb-core-read-USB-ports-from-DT-in-the-usbport-LED-t.patch deleted file mode 100644 index 65d17c8a9e..0000000000 --- a/target/linux/generic/pending-4.4/084-0003-usb-core-read-USB-ports-from-DT-in-the-usbport-LED-t.patch +++ /dev/null @@ -1,106 +0,0 @@ -From 4f04c210d031667e503d6538a72345a36f3b5d71 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> -Date: Thu, 8 Jun 2017 18:08:32 +0200 -Subject: [PATCH] usb: core: read USB ports from DT in the usbport LED trigger - driver -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -This uses DT info to read relation description of LEDs and USB ports. If -DT has properly described LEDs, trigger will know when to turn them on. - -Signed-off-by: Rafał Miłecki <rafal@milecki.pl> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - drivers/usb/core/ledtrig-usbport.c | 56 ++++++++++++++++++++++++++++++++++++++ - 1 file changed, 56 insertions(+) - ---- a/drivers/usb/core/ledtrig-usbport.c -+++ b/drivers/usb/core/ledtrig-usbport.c -@@ -11,8 +11,10 @@ - #include <linux/device.h> - #include <linux/leds.h> - #include <linux/module.h> -+#include <linux/of.h> - #include <linux/slab.h> - #include <linux/usb.h> -+#include <linux/usb/of.h> - - struct usbport_trig_data { - struct led_classdev *led_cdev; -@@ -123,6 +125,57 @@ static const struct attribute_group port - * Adding & removing ports - ***************************************/ - -+/** -+ * usbport_trig_port_observed - Check if port should be observed -+ */ -+static bool usbport_trig_port_observed(struct usbport_trig_data *usbport_data, -+ struct usb_device *usb_dev, int port1) -+{ -+ struct device *dev = usbport_data->led_cdev->dev; -+ struct device_node *led_np = dev->of_node; -+ struct of_phandle_args args; -+ struct device_node *port_np; -+ int count, i; -+ -+ if (!led_np) -+ return false; -+ -+ /* Get node of port being added */ -+ port_np = usb_of_get_child_node(usb_dev->dev.of_node, port1); -+ if (!port_np) -+ return false; -+ -+ /* Amount of trigger sources for this LED */ -+ count = of_count_phandle_with_args(led_np, "trigger-sources", -+ "#trigger-source-cells"); -+ if (count < 0) { -+ dev_warn(dev, "Failed to get trigger sources for %s\n", -+ led_np->full_name); -+ return false; -+ } -+ -+ /* Check list of sources for this specific port */ -+ for (i = 0; i < count; i++) { -+ int err; -+ -+ err = of_parse_phandle_with_args(led_np, "trigger-sources", -+ "#trigger-source-cells", i, -+ &args); -+ if (err) { -+ dev_err(dev, "Failed to get trigger source phandle at index %d: %d\n", -+ i, err); -+ continue; -+ } -+ -+ of_node_put(args.np); -+ -+ if (args.np == port_np) -+ return true; -+ } -+ -+ return false; -+} -+ - static int usbport_trig_add_port(struct usbport_trig_data *usbport_data, - struct usb_device *usb_dev, - const char *hub_name, int portnum) -@@ -141,6 +194,8 @@ static int usbport_trig_add_port(struct - port->data = usbport_data; - port->hub = usb_dev; - port->portnum = portnum; -+ port->observed = usbport_trig_port_observed(usbport_data, usb_dev, -+ portnum); - - len = strlen(hub_name) + 8; - port->port_name = kzalloc(len, GFP_KERNEL); -@@ -255,6 +310,7 @@ static void usbport_trig_activate(struct - if (err) - goto err_free; - usb_for_each_dev(usbport_data, usbport_trig_add_usb_dev_ports); -+ usbport_trig_update_count(usbport_data); - - /* Notifications */ - usbport_data->nb.notifier_call = usbport_trig_notify, |