linux-kernel - [PATCH 12/13] phy: usb: USB driver is crashing during S3 resume on 7216

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Message-Id: <20191107141339.6079-13-alcooperx@gmail.com>
Date:   Thu,  7 Nov 2019 09:13:38 -0500
From:   Al Cooper <alcooperx@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Al Cooper <alcooperx@...il.com>,
        bcm-kernel-feedback-list@...adcom.com, devicetree@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        linux-arm-kernel@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Srinath Mannam <srinath.mannam@...adcom.com>
Subject: [PATCH 12/13] phy: usb: USB driver is crashing during S3 resume on 7216

This is a result of the USB 2.0 clocks not being disabled/enabled
during suspend/resume on XHCI only systems.

Signed-off-by: Al Cooper <alcooperx@...il.com>
---
 drivers/phy/broadcom/phy-brcm-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
index 2a06965d20b8..86d7ba7c3af3 100644
--- a/drivers/phy/broadcom/phy-brcm-usb.c
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -538,7 +538,7 @@ static int brcm_usb_phy_suspend(struct device *dev)
 		brcm_usb_wake_enable(&priv->ini, true);
 		if (priv->phys[BRCM_USB_PHY_3_0].inited)
 			clk_disable_unprepare(priv->usb_30_clk);
-		if (priv->phys[BRCM_USB_PHY_2_0].inited)
+		if (priv->phys[BRCM_USB_PHY_2_0].inited || !priv->has_eohci)
 			clk_disable_unprepare(priv->usb_20_clk);
 		if (priv->wake_irq >= 0)
 			enable_irq_wake(priv->wake_irq);
-- 
2.17.1