Merge "usb: phy: snps: Enable auto resume during host mode suspend" (460bde7f) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/usb/phy/phy-msm-snps-hs.c

+11 −1

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
		* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -54,6 +54,7 @@
		#define VBUSVLDEXT0 BIT(0)

		#define USB2_PHY_USB_PHY_HS_PHY_CTRL2 (0x64)
		#define USB2_AUTO_RESUME BIT(0)
		#define USB2_SUSPEND_N BIT(2)
		#define USB2_SUSPEND_N_SEL BIT(3)

		@@ -511,6 +512,15 @@ static int msm_hsphy_set_suspend(struct usb_phy *uphy, int suspend)
		if (suspend) { /* Bus suspend */
		if (phy->cable_connected \|\|
		(phy->phy.flags & PHY_HOST_MODE)) {
		/* Enable auto-resume functionality by pulsing signal */
		msm_usb_write_readback(phy->base,
		USB2_PHY_USB_PHY_HS_PHY_CTRL2,
		USB2_AUTO_RESUME, USB2_AUTO_RESUME);
		usleep_range(500, 1000);
		msm_usb_write_readback(phy->base,
		USB2_PHY_USB_PHY_HS_PHY_CTRL2,
		USB2_AUTO_RESUME, 0);

		msm_hsphy_enable_clocks(phy, false);
		} else {/* Cable disconnect */
		mutex_lock(&phy->phy_lock);