115 lines
4.0 KiB
Diff
115 lines
4.0 KiB
Diff
From 66106be29d69e41afa8dcb749d551b67738983cf Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= <megi@xff.cz>
|
|
Date: Fri, 4 Feb 2022 02:25:34 +0100
|
|
Subject: [PATCH 345/464] phy: rockchip-inno-usb2: More robust charger
|
|
detection extcon updates
|
|
|
|
Make sure we always clear the charger detection results. Allow to
|
|
disable updates of EXTCON_USB state via extcon,ignore-usb DT property.
|
|
The previous method was smart, but assumed !vbus_branch would
|
|
always be called.
|
|
|
|
Signed-off-by: Ondrej Jirman <megi@xff.cz>
|
|
---
|
|
drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 39 +++++++++++--------
|
|
1 file changed, 23 insertions(+), 16 deletions(-)
|
|
|
|
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
|
|
index 490cce6e1d40..ae448127d31c 100644
|
|
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
|
|
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
|
|
@@ -542,21 +542,27 @@ static const struct phy_ops rockchip_usb2phy_ops = {
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
+const int rockchip_usb2phy_cable_types[] = {
|
|
+ EXTCON_CHG_USB_SDP,
|
|
+ EXTCON_CHG_USB_DCP,
|
|
+ EXTCON_CHG_USB_CDP,
|
|
+ EXTCON_CHG_USB_ACA,
|
|
+};
|
|
+
|
|
static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
|
|
{
|
|
struct rockchip_usb2phy_port *rport =
|
|
container_of(work, struct rockchip_usb2phy_port,
|
|
otg_sm_work.work);
|
|
struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);
|
|
- static unsigned int cable;
|
|
+ unsigned int cable = 0, i;
|
|
unsigned long delay;
|
|
- bool vbus_attach, sch_work, notify_charger;
|
|
+ bool vbus_attach, sch_work;
|
|
|
|
vbus_attach = property_enabled(rphy->grf,
|
|
&rport->port_cfg->utmi_bvalid);
|
|
|
|
sch_work = false;
|
|
- notify_charger = false;
|
|
delay = OTG_SCHEDULE_DELAY;
|
|
dev_dbg(&rport->phy->dev, "%s otg sm work\n",
|
|
usb_otg_state_string(rport->state));
|
|
@@ -585,14 +591,12 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
|
|
dev_dbg(&rport->phy->dev, "sdp cable is connected\n");
|
|
rockchip_usb2phy_power_on(rport->phy);
|
|
rport->state = OTG_STATE_B_PERIPHERAL;
|
|
- notify_charger = true;
|
|
sch_work = true;
|
|
cable = EXTCON_CHG_USB_SDP;
|
|
break;
|
|
case POWER_SUPPLY_TYPE_USB_DCP:
|
|
dev_dbg(&rport->phy->dev, "dcp cable is connected\n");
|
|
rockchip_usb2phy_power_off(rport->phy);
|
|
- notify_charger = true;
|
|
sch_work = true;
|
|
cable = EXTCON_CHG_USB_DCP;
|
|
break;
|
|
@@ -600,7 +604,6 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
|
|
dev_dbg(&rport->phy->dev, "cdp cable is connected\n");
|
|
rockchip_usb2phy_power_on(rport->phy);
|
|
rport->state = OTG_STATE_B_PERIPHERAL;
|
|
- notify_charger = true;
|
|
sch_work = true;
|
|
cable = EXTCON_CHG_USB_CDP;
|
|
break;
|
|
@@ -612,22 +615,26 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
|
|
break;
|
|
}
|
|
} else {
|
|
- notify_charger = true;
|
|
rphy->chg_state = USB_CHG_STATE_UNDEFINED;
|
|
rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;
|
|
}
|
|
|
|
- if (rport->vbus_attached != vbus_attach) {
|
|
- rport->vbus_attached = vbus_attach;
|
|
+ if (rphy->edev && extcon_get_state(rphy->edev, cable) != vbus_attach) {
|
|
+ for (i = 0; i < ARRAY_SIZE(rockchip_usb2phy_cable_types); i++) {
|
|
+ int type = rockchip_usb2phy_cable_types[i];
|
|
|
|
- if (notify_charger && rphy->edev) {
|
|
- extcon_set_state_sync(rphy->edev,
|
|
- cable, vbus_attach);
|
|
- if (cable == EXTCON_CHG_USB_SDP)
|
|
- extcon_set_state_sync(rphy->edev,
|
|
- EXTCON_USB,
|
|
- vbus_attach);
|
|
+ if (extcon_get_state(rphy->edev, type))
|
|
+ extcon_set_state_sync(rphy->edev, type, 0);
|
|
}
|
|
+
|
|
+ if (vbus_attach)
|
|
+ extcon_set_state_sync(rphy->edev, cable, vbus_attach);
|
|
+
|
|
+ if ((cable == EXTCON_CHG_USB_SDP || cable == POWER_SUPPLY_TYPE_USB_CDP)
|
|
+ && extcon_get_state(rphy->edev, EXTCON_USB) != vbus_attach
|
|
+ && !of_property_read_bool(rphy->dev->of_node, "extcon,ignore-usb"))
|
|
+ extcon_set_state_sync(rphy->edev,
|
|
+ EXTCON_USB, vbus_attach);
|
|
}
|
|
break;
|
|
case OTG_STATE_B_PERIPHERAL:
|
|
--
|
|
2.34.1
|
|
|