Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4588a09c authored by Vamsi Krishna Samavedam's avatar Vamsi Krishna Samavedam Committed by Hemant Kumar
Browse files

usb: phy: snps: Use external resistor (REXT) for HSTX tuning 



Enable external resistor for HSTX tuning for the phy

Change-Id: If54c19cd02f15286f1556c7f2831b80ef2c93536
Signed-off-by: default avatarVamsi Krishna Samavedam <vskrishn@codeaurora.org>
parent a9586f8c

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

+6 −0
Original line number Diff line number Diff line
@@ -69,6 +69,9 @@ 
#define REFCLK_SEL_MASK				(0x3 << 0)

#define REFCLK_SEL_DEFAULT			(0x2 << 0)



#define USB2PHY_USB_PHY_RTUNE_SEL		(0xb4)

#define RTUNE_SEL				BIT(0)



#define USB_HSPHY_3P3_VOL_MIN			3050000 /* uV */

#define USB_HSPHY_3P3_VOL_MAX			3300000 /* uV */

#define USB_HSPHY_3P3_HPM_LOAD			16000	/* uA */
@@ -389,6 +392,9 @@ static int msm_hsphy_init(struct usb_phy *uphy) 
		hsusb_phy_write_seq(phy->base, phy->param_override_seq,

				phy->param_override_seq_cnt, 0);



	msm_usb_write_readback(phy->base, USB2PHY_USB_PHY_RTUNE_SEL,

			RTUNE_SEL, RTUNE_SEL);



	msm_usb_write_readback(phy->base, USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON2,

				VREGBYPASS, VREGBYPASS);