diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/820-usb-0003-usb-phy-show-USB-charger-type-for-user.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/820-usb-0003-usb-phy-show-USB-charger-type-for-user.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/820-usb-0003-usb-phy-show-USB-charger-type-for-user.patch b/target/linux/layerscape/patches-5.4/820-usb-0003-usb-phy-show-USB-charger-type-for-user.patch new file mode 100644 index 0000000000..c2e85c096b --- /dev/null +++ b/target/linux/layerscape/patches-5.4/820-usb-0003-usb-phy-show-USB-charger-type-for-user.patch @@ -0,0 +1,49 @@ +From 8eaa50485af15a4e1cc0c7c04f5ce3916e712ae1 Mon Sep 17 00:00:00 2001 +From: Peter Chen <peter.chen@nxp.com> +Date: Wed, 6 Nov 2019 17:24:29 +0800 +Subject: [PATCH] usb: phy: show USB charger type for user + +Current USB charger framework only shows charger state for user, but the +user may also need charger type for further use, add support for it. + +Signed-off-by: Peter Chen <peter.chen@nxp.com> +--- + drivers/usb/phy/phy.c | 13 ++++++++++++- + 1 file changed, 12 insertions(+), 1 deletion(-) + +--- a/drivers/usb/phy/phy.c ++++ b/drivers/usb/phy/phy.c +@@ -34,6 +34,14 @@ struct phy_devm { + struct notifier_block *nb; + }; + ++static const char *const usb_chger_type[] = { ++ [UNKNOWN_TYPE] = "USB_CHARGER_UNKNOWN_TYPE", ++ [SDP_TYPE] = "USB_CHARGER_SDP_TYPE", ++ [CDP_TYPE] = "USB_CHARGER_CDP_TYPE", ++ [DCP_TYPE] = "USB_CHARGER_DCP_TYPE", ++ [ACA_TYPE] = "USB_CHARGER_ACA_TYPE", ++}; ++ + static struct usb_phy *__usb_find_phy(struct list_head *list, + enum usb_phy_type type) + { +@@ -98,7 +106,8 @@ static void usb_phy_notify_charger_work( + { + struct usb_phy *usb_phy = container_of(work, struct usb_phy, chg_work); + char uchger_state[50] = { 0 }; +- char *envp[] = { uchger_state, NULL }; ++ char uchger_type[50] = { 0 }; ++ char *envp[] = { uchger_state, uchger_type, NULL }; + unsigned int min, max; + + switch (usb_phy->chg_state) { +@@ -122,6 +131,8 @@ static void usb_phy_notify_charger_work( + return; + } + ++ snprintf(uchger_type, ARRAY_SIZE(uchger_type), ++ "USB_CHARGER_TYPE=%s", usb_chger_type[usb_phy->chg_type]); + kobject_uevent_env(&usb_phy->dev->kobj, KOBJ_CHANGE, envp); + } + |