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

Commit 39334015 authored by Pratham Pratap's avatar Pratham Pratap
Browse files

usb: phy: Update BIAS_CTRL2 register based on REFGEN status 



This change adds support to read REFGEN status and override BIAS_CTRL2
register for better USB compliance result in HOST mode.

Change-Id: I437382f4d902b623244ecef5849ab102a473fc31
Signed-off-by: default avatarPratham Pratap <prathampratap@codeaurora.org>
parent e3d045af

drivers/usb/phy/phy-msm-qusb-v2.c

+6 −0
Original line number Diff line number Diff line
@@ -489,6 +489,12 @@ static void qusb_phy_host_init(struct usb_phy *phy) 
		writel_relaxed(DEBUG_CTRL1_OVERRIDE_VAL,

				qphy->base + qphy->phy_reg[DEBUG_CTRL1]);

	}



	if (qphy->refgen_north_bg_reg)

		if (readl_relaxed(qphy->refgen_north_bg_reg) & BANDGAP_BYPASS)

			writel_relaxed(BIAS_CTRL_2_OVERRIDE_VAL,

				qphy->base + qphy->phy_reg[BIAS_CTRL_2]);



	/* Ensure above write is completed before turning ON ref clk */

	wmb();