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usb: phy: show USB charger type for user

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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>
This commit is contained in:
Peter Chen 2020-01-16 11:28:52 +08:00 committed by Greg Kroah-Hartman
parent c120431347
commit 3bdcfe6c1d
1 changed files with 12 additions and 1 deletions
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13
drivers/usb/phy/phy.c
View file

@ -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);
}