From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH v6 23/25] usb: chipidea: Pullup D+ in device mode via phy APIs Date: Wed, 28 Dec 2016 14:57:09 -0800 Message-ID: <20161228225711.698-24-stephen.boyd@linaro.org> References: <20161228225711.698-1-stephen.boyd@linaro.org> Return-path: In-Reply-To: <20161228225711.698-1-stephen.boyd-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andy Gross , Bjorn Andersson , Neil Armstrong , Arnd Bergmann , Felipe Balbi , Peter Chen , Greg Kroah-Hartman List-Id: linux-arm-msm@vger.kernel.org If the phy supports it, call phy_set_mode() to pull up D+ when required by setting the mode to PHY_MODE_USB_DEVICE. If we want to remove the pullup, set the mode to PHY_MODE_USB_HOST. Cc: Peter Chen Cc: Greg Kroah-Hartman Signed-off-by: Stephen Boyd --- drivers/usb/chipidea/udc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 0d532a724d48..6d61fa0689b0 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -1609,10 +1610,15 @@ static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on) return 0; pm_runtime_get_sync(&ci->gadget.dev); - if (is_on) + if (is_on) { + if (ci->phy) + phy_set_mode(ci->phy, PHY_MODE_USB_DEVICE); hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); - else + } else { hw_write(ci, OP_USBCMD, USBCMD_RS, 0); + if (ci->phy) + phy_set_mode(ci->phy, PHY_MODE_USB_HOST); + } pm_runtime_put_sync(&ci->gadget.dev); return 0; -- 2.10.0.297.gf6727b0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html