The chipidea binding describes the optional property of a regulator
for vbus named "vbus-supply".
Add support for this property to the driver so it can be used on boards
with a gpio-controlled regulator.
Signed-off-by: Steffen Trumtrar <s.trumt...@pengutronix.de>
---
drivers/usb/imx/chipidea-imx.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/imx/chipidea-imx.c b/drivers/usb/imx/chipidea-imx.c
index 9b6829b..84522dc 100644
--- a/drivers/usb/imx/chipidea-imx.c
+++ b/drivers/usb/imx/chipidea-imx.c
@@ -18,6 +18,7 @@
#include <of.h>
#include <errno.h>
#include <driver.h>
+#include <regulator.h>
#include <usb/usb.h>
#include <usb/ehci.h>
#include <usb/chipidea-imx.h>
@@ -32,6 +33,7 @@ struct imx_chipidea {
struct ehci_data data;
unsigned long flags;
enum imx_usb_mode mode;
+ struct regulator *reg_vbus;
int portno;
enum usb_phy_interface phymode;
};
@@ -41,6 +43,12 @@ static int imx_chipidea_port_init(void *drvdata)
struct imx_chipidea *ci = drvdata;
int ret;
+ if (ci->reg_vbus) {
+ ret = regulator_enable(ci->reg_vbus);
+ if (ret < 0)
+ return ret;
+ }
+
if ((ci->flags & MXC_EHCI_PORTSC_MASK) == MXC_EHCI_MODE_ULPI) {
dev_dbg(ci->dev, "using ULPI phy\n");
if (IS_ENABLED(CONFIG_USB_ULPI)) {
@@ -54,8 +62,11 @@ static int imx_chipidea_port_init(void *drvdata)
ret = -ENODEV;
}
- if (ret)
+ if (ret) {
+ if (ci->reg_vbus)
+ regulator_disable(ci->reg_vbus);
return ret;
+ }
}
ret = imx_usbmisc_port_init(ci->portno, ci->flags);
@@ -126,6 +137,8 @@ static int imx_chipidea_probe_dt(struct imx_chipidea *ci)
"disable-over-current", NULL))
ci->flags |= MXC_EHCI_DISABLE_OVERCURRENT;
+ ci->reg_vbus = regulator_get(ci->dev, "vbus");
+
return 0;
}
--
2.0.0
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