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authorPeter Chen <peter.chen@nxp.com>2020-01-16 06:28:52 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-24 11:41:27 +0300
commit3bdcfe6c1d90b343c3de5fffdc83d988e76f8679 (patch)
tree041723cbeeac5f265e33149f8e8a5c160b20b59d /drivers/usb
parentc120431347246fe481b73026cad49920f705e92f (diff)
downloadlinux-3bdcfe6c1d90b343c3de5fffdc83d988e76f8679.tar.xz
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> Link: https://lore.kernel.org/r/1579145333-1657-1-git-send-email-peter.chen@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/phy/phy.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index 0277f62739a2..ad2554630889 100644
--- 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 work_struct *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(struct work_struct *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);
}