linux-kernel - [PATCH 2/6] phy: usb: s2 WoL wakeup_count not incremented for USB->Eth devices

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Message-Id: <1665005418-15807-3-git-send-email-justinpopo6@gmail.com>
Date:   Wed,  5 Oct 2022 14:30:14 -0700
From:   justinpopo6@...il.com
To:     alcooperx@...il.com, kishon@...com, vkoul@...nel.org,
        f.fainelli@...il.com, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org
Cc:     bcm-kernel-feedback-list@...adcom.com,
        Justin Chen <justinpopo6@...il.com>
Subject: [PATCH 2/6] phy: usb: s2 WoL wakeup_count not incremented for USB->Eth devices

From: Al Cooper <alcooperx@...il.com>

The PHY's "wakeup_count" is not incrementing when waking from
WoL. The wakeup count can be found in sysfs at:
/sys/bus/platform/devices/rdb/*.usb-phy/power/wakeup_count.
The problem is that the system wakup event handler was being passed
the wrong "device" by the PHY driver.

Fixes: f1c0db40a3ad ("usb: Add "wake on" functionality")
Signed-off-by: Al Cooper <alcooperx@...il.com>
Signed-off-by: Justin Chen <justinpopo6@...il.com>
---
 drivers/phy/broadcom/phy-brcm-usb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
index 99d4dea..d97fa58 100644
--- a/drivers/phy/broadcom/phy-brcm-usb.c
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -102,9 +102,9 @@ static int brcm_pm_notifier(struct notifier_block *notifier,
 
 static irqreturn_t brcm_usb_phy_wake_isr(int irq, void *dev_id)
 {
-	struct phy *gphy = dev_id;
+	struct device *dev = dev_id;
 
-	pm_wakeup_event(&gphy->dev, 0);
+	pm_wakeup_event(dev, 0);
 
 	return IRQ_HANDLED;
 }
@@ -452,7 +452,7 @@ static int brcm_usb_phy_dvr_init(struct platform_device *pdev,
 	if (priv->wake_irq >= 0) {
 		err = devm_request_irq(dev, priv->wake_irq,
 				       brcm_usb_phy_wake_isr, 0,
-				       dev_name(dev), gphy);
+				       dev_name(dev), dev);
 		if (err < 0)
 			return err;
 		device_set_wakeup_capable(dev, 1);
-- 
2.7.4