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usb: dwc3-msm: Resume SS_PHY after enabling clocks 

commit 7a1311d3 "usb: dwc3-msm: Fix resume sequence when cable is
reconnected" introduced this issue. SS_PHY was resumed before
enabling clocks which resulted in unclocked register access.
So fix this by enabling the clocks before resuming SS_PHY.

CRs-fixed: 688312
Change-Id: Ic3621caf8878e6c6c02edf23461eeb74292d203b
Signed-off-by: Azhar Shaikh <azhars@codeaurora.org>
This commit is contained in:
Azhar Shaikh 2014-07-02 14:53:05 -07:00
parent ff1ff8e01d
commit dbc6a7199e
1 changed files with 7 additions and 4 deletions
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11
drivers/usb/dwc3/dwc3-msm.c
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@ -1799,11 +1799,9 @@ static int dwc3_msm_resume(struct dwc3_msm *mdwc)
clk_prepare_enable(mdwc->utmi_clk);
if (mdwc->lpm_flags & MDWC3_PHY_REF_CLK_OFF) {
if (mdwc->lpm_flags & MDWC3_PHY_REF_CLK_OFF)
clk_prepare_enable(mdwc->ref_clk);
usb_phy_set_suspend(mdwc->ss_phy, 0);
mdwc->lpm_flags &= ~MDWC3_PHY_REF_CLK_OFF;
}
usleep_range(1000, 1200);
clk_prepare_enable(mdwc->iface_clk);
@ -1812,6 +1810,11 @@ static int dwc3_msm_resume(struct dwc3_msm *mdwc)
mdwc->lpm_flags &= ~MDWC3_CORECLK_OFF;
}
if (mdwc->lpm_flags & MDWC3_PHY_REF_CLK_OFF) {
usb_phy_set_suspend(mdwc->ss_phy, 0);
mdwc->lpm_flags &= ~MDWC3_PHY_REF_CLK_OFF;
}
usb_phy_set_suspend(mdwc->hs_phy, 0);
/* Recover from controller power collapse */