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From:   bugzilla-daemon@bugzilla.kernel.org
To:     linux-usb@vger.kernel.org
Subject: [Bug 209555] dwc2 driver stops working after sudden disconnect
Date:   Thu, 08 Oct 2020 07:46:26 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=209555

Minas Harutyunyan (Minas.Harutyunyan@synopsys.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Minas.Harutyunyan@synopsys.
                   |                            |com

--- Comment #2 from Minas Harutyunyan (Minas.Harutyunyan@synopsys.com) ---
Hi Tomasz,

Could you please disable power optimization by follow workaround and test
again:

file: params.c

static void dwc2_set_param_power_down(struct dwc2_hsotg *hsotg)
{
        int val;

        if (hsotg->hw_params.hibernation)
                val = DWC2_POWER_DOWN_PARAM_HIBERNATION;
        else if (hsotg->hw_params.power_optimized)
                val = DWC2_POWER_DOWN_PARAM_PARTIAL;
        else
                val = DWC2_POWER_DOWN_PARAM_NONE;

        hsotg->params.power_down = 0; //val; WA
}

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