Move usb-psy init to dwc3_populate_usb_psy() so that gadget can re-use
it to retry setting up usb-psy when null.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 6f0764b5adea ("usb: dwc3: add a power supply for current control")
Signed-off-by: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
---
drivers/usb/dwc3/core.c | 24 ++++++++++++++++--------
drivers/usb/dwc3/core.h | 1 +
2 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index b101dbf8c5dc..a93425b9c1c0 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1495,6 +1495,19 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc)
dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE);
}
+void dwc3_populate_usb_psy(struct dwc3 *dwc)
+{
+ const char *usb_psy_name;
+ int ret;
+
+ if (dwc->usb_psy)
+ return;
+
+ ret = device_property_read_string(dwc->dev, "usb-psy-name", &usb_psy_name);
+ if (ret >= 0)
+ dwc->usb_psy = power_supply_get_by_name(usb_psy_name);
+}
+
static void dwc3_get_properties(struct dwc3 *dwc)
{
struct device *dev = dwc->dev;
@@ -1510,8 +1523,6 @@ static void dwc3_get_properties(struct dwc3 *dwc)
u8 tx_thr_num_pkt_prd = 0;
u8 tx_max_burst_prd = 0;
u8 tx_fifo_resize_max_num;
- const char *usb_psy_name;
- int ret;
/* default to highest possible threshold */
lpm_nyet_threshold = 0xf;
@@ -1544,12 +1555,9 @@ static void dwc3_get_properties(struct dwc3 *dwc)
else
dwc->sysdev = dwc->dev;
- ret = device_property_read_string(dev, "usb-psy-name", &usb_psy_name);
- if (ret >= 0) {
- dwc->usb_psy = power_supply_get_by_name(usb_psy_name);
- if (!dwc->usb_psy)
- dev_err(dev, "couldn't get usb power supply\n");
- }
+ dwc3_populate_usb_psy(dwc);
+ if (!dwc->usb_psy)
+ dev_err(dev, "couldn't get usb power supply\n");
dwc->has_lpm_erratum = device_property_read_bool(dev,
"snps,has-lpm-erratum");
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index efe6caf4d0e8..6c65d76e6fe2 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -1526,6 +1526,7 @@ struct dwc3_gadget_ep_cmd_params {
void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode);
void dwc3_set_mode(struct dwc3 *dwc, u32 mode);
u32 dwc3_core_fifo_space(struct dwc3_ep *dep, u8 type);
+void dwc3_populate_usb_psy(struct dwc3 *dwc);
#define DWC3_IP_IS(_ip) \
(dwc->ip == _ip##_IP)
base-commit: 51920207674e9e3475a91d2091583889792df99a
--
2.43.0.472.g3155946c3a-goog
