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ucsi: ucsi_glink: notify partner information

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Change-Id: Icf077136fbc4473e58e45ce55ca542f99233d506
Signed-off-by: Linyu Yuan <linyyuan@codeaurora.org>
[collinsd@codeaurora.org: switched to fallthrough statement]
Signed-off-by: David Collins <collinsd@codeaurora.org>
This commit is contained in:
Linyu Yuan 2020-04-24 18:41:41 +08:00 committed by Subbaraman Narayanamurthy
parent ae0e95d915
commit cb81c5fca5
2 changed files with 20 additions and 1 deletions
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19
drivers/usb/typec/ucsi/ucsi_glink.c
View File

@ -363,7 +363,7 @@ static void ucsi_qti_notify_work(struct work_struct *work)
static void ucsi_qti_notify(struct ucsi_dev *udev, unsigned int offset,
struct ucsi_connector_status *status)
{
u8 conn_partner_type;
u8 conn_partner_type, conn_partner_flag;
bool cmd_requested;
mutex_lock(&udev->notify_lock);
@ -372,6 +372,10 @@ static void ucsi_qti_notify(struct ucsi_dev *udev, unsigned int offset,
if (cmd_requested && offset == UCSI_MESSAGE_IN) {
cancel_work_sync(&udev->notify_work);
udev->constat_info.partner_usb = false;
udev->constat_info.partner_alternate_mode = false;
conn_partner_type = UCSI_CONSTAT_PARTNER_TYPE(status->flags);
switch (conn_partner_type) {
@ -381,11 +385,24 @@ static void ucsi_qti_notify(struct ucsi_dev *udev, unsigned int offset,
case UCSI_CONSTAT_PARTNER_TYPE_DEBUG:
udev->constat_info.acc = TYPEC_ACCESSORY_DEBUG;
break;
case UCSI_CONSTAT_PARTNER_TYPE_UFP:
case UCSI_CONSTAT_PARTNER_TYPE_CABLE:
case UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP:
case UCSI_CONSTAT_PARTNER_TYPE_DFP:
udev->constat_info.partner_usb = true;
fallthrough;
default:
udev->constat_info.acc = TYPEC_ACCESSORY_NONE;
break;
}
conn_partner_flag = UCSI_CONSTAT_PARTNER_FLAGS(status->flags);
if (conn_partner_flag & UCSI_CONSTAT_PARTNER_FLAG_USB)
udev->constat_info.partner_usb = true;
if (conn_partner_flag & UCSI_CONSTAT_PARTNER_FLAG_ALT_MODE)
udev->constat_info.partner_alternate_mode = true;
schedule_work(&udev->notify_work);
}
}

2
include/linux/usb/ucsi_glink.h
View File

@ -11,6 +11,8 @@
struct ucsi_glink_constat_info {
enum typec_accessory acc;
bool partner_usb;
bool partner_alternate_mode;
};
struct notifier_block;