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Merge "usb: phy: snps: Enable auto-resume during host mode bus suspend"

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qctecmdr 2020-08-05 19:48:50 -07:00 • committed by Gerrit - the friendly Code Review server
commit 581a648da0
1 changed files with 17 additions and 9 deletions
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26
drivers/usb/phy/phy-msm-snps-hs.c
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@ -487,15 +487,23 @@ 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);
/* Enable auto-resume functionality only when
* there is some peripheral connected and real
* bus suspend happened
*/
if ((phy->phy.flags & PHY_HSFS_MODE) ||
(phy->phy.flags & PHY_LS_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);