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authorMichael Grzeschik <m.grzeschik@pengutronix.de>2021-02-02 19:54:12 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2021-02-04 11:26:45 +0100
commiteb2ad9a793c7d00988e399b9b7a1ebb2a0d85b3f (patch)
treee65c90ee771274d2deac35c9a8f6cfb557ab25af
parent70ec84e1470efeea4ab100513e1241b44aa8c2ff (diff)
downloadbarebox-eb2ad9a793c7d00988e399b9b7a1ebb2a0d85b3f.tar.gz
barebox-eb2ad9a793c7d00988e399b9b7a1ebb2a0d85b3f.tar.xz
usb: imx: fix overcurrent polarity handling on i.MX7
The reference manual says the overcurrent polarity is changed to low with the bit set. We fix that according to the description. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--drivers/usb/imx/imx-usb-misc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/imx/imx-usb-misc.c b/drivers/usb/imx/imx-usb-misc.c
index b663d073aa..660ebecd78 100644
--- a/drivers/usb/imx/imx-usb-misc.c
+++ b/drivers/usb/imx/imx-usb-misc.c
@@ -353,7 +353,7 @@ static __maybe_unused struct imx_usb_misc_data mx5_data = {
#define MX6_USB_CTRL(n) ((n) * 4)
#define MX6_USB_CTRL_OVER_CUR_DIS (1 << 7)
-#define MX6_USB_CTRL_OVER_CUR_ACT_HIGH (1 << 8)
+#define MX6_USB_CTRL_OVER_CUR_ACT_LOW (1 << 8)
#define MX6_USB_CTRL_PWR_POLARITY (1 << 9)
static void mx6_hsic_pullup(unsigned long reg, int on)
@@ -453,9 +453,9 @@ static int usbmisc_imx7d_init(void __iomem *base, int port,
} else {
reg &= ~MX6_USB_CTRL_OVER_CUR_DIS;
if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)
- reg &= ~MX6_USB_CTRL_OVER_CUR_ACT_HIGH;
+ reg |= MX6_USB_CTRL_OVER_CUR_ACT_LOW;
else
- reg |= MX6_USB_CTRL_OVER_CUR_ACT_HIGH;
+ reg &= ~MX6_USB_CTRL_OVER_CUR_ACT_LOW;
}
if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH)
reg |= MX6_USB_CTRL_PWR_POLARITY;