evie/android_kernel_oneplus_msm8998
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Merge "USB: pd: Notify selfpowered state based on type C current"

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Linux Build Service Account 2018-09-08 12:33:58 -07:00 • committed by Gerrit - the friendly Code Review server
commit d6d8c10244
4 changed files with 18 additions and 0 deletions
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8
drivers/usb/dwc3/dwc3-msm.c
View file

@ -2689,6 +2689,7 @@ static int dwc3_msm_vbus_notifier(struct notifier_block *nb,
struct extcon_dev *edev = ptr;
int cc_state;
int speed;
int self_powered;
if (!edev) {
dev_err(mdwc->dev, "%s: edev null\n", __func__);
@ -2714,6 +2715,13 @@ static int dwc3_msm_vbus_notifier(struct notifier_block *nb,
if (dwc->maximum_speed > dwc->max_hw_supp_speed)
dwc->maximum_speed = dwc->max_hw_supp_speed;
self_powered = extcon_get_cable_state_(edev,
EXTCON_USB_TYPEC_MED_HIGH_CURRENT);
if (self_powered < 0)
dwc->gadget.is_selfpowered = 0;
else
dwc->gadget.is_selfpowered = self_powered;
mdwc->vbus_active = event;
if (dwc->is_drd && !mdwc->in_restart) {
dbg_event(0xFF, "Q RW (vbus)", mdwc->vbus_active);

4
drivers/usb/gadget/composite.c
View file

@ -518,6 +518,10 @@ static int config_buf(struct usb_configuration *config,
c->iConfiguration = config->iConfiguration;
c->bmAttributes = USB_CONFIG_ATT_ONE | config->bmAttributes;
c->bMaxPower = encode_bMaxPower(speed, config);
if (config->cdev->gadget->is_selfpowered) {
c->bmAttributes |= USB_CONFIG_ATT_SELFPOWER;
c->bMaxPower = 0;
}
/* There may be e.g. OTG descriptors */
if (config->descriptors) {

3
drivers/usb/pd/policy_engine.c
View file

@ -456,6 +456,7 @@ static const unsigned int usbpd_extcon_cable[] = {
EXTCON_USB_HOST,
EXTCON_USB_CC,
EXTCON_USB_SPEED,
EXTCON_USB_TYPEC_MED_HIGH_CURRENT,
EXTCON_NONE,
};
@ -503,6 +504,8 @@ static inline void start_usb_peripheral(struct usbpd *pd)
extcon_set_cable_state_(pd->extcon, EXTCON_USB_CC,
cc == ORIENTATION_CC2);
extcon_set_cable_state_(pd->extcon, EXTCON_USB_SPEED, 1);
extcon_set_cable_state_(pd->extcon, EXTCON_USB_TYPEC_MED_HIGH_CURRENT,
pd->typec_mode > POWER_SUPPLY_TYPEC_SOURCE_DEFAULT ? 1 : 0);
extcon_set_cable_state_(pd->extcon, EXTCON_USB, 1);
}

3
include/linux/extcon.h
View file

@ -61,6 +61,9 @@
/* connector speed 0 - High Speed, 1 - super speed */
#define EXTCON_USB_SPEED 29
/* connector type C current 0 - default current, 1 - medium or high current */
#define EXTCON_USB_TYPEC_MED_HIGH_CURRENT 30
/* Display external connector */
#define EXTCON_DISP_HDMI 40 /* High-Definition Multimedia Interface */
#define EXTCON_DISP_MHL 41 /* Mobile High-Definition Link */