linux-kernel - [PATCH 1/2] usb: host: ehci-platform: Drop ehci_resume from ehci_platform

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Message-ID: <20251207124742.96526-2-biju.das.jz@bp.renesas.com>
Date: Sun,  7 Dec 2025 12:47:26 +0000
From: Biju <biju.das.au@...il.com>
To: Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: Biju Das <biju.das.jz@...renesas.com>,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>,
	linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
	Biju Das <biju.das.au@...il.com>,
	linux-renesas-soc@...r.kernel.org
Subject: [PATCH 1/2] usb: host: ehci-platform: Drop ehci_resume from ehci_platform_suspend()

From: Biju Das <biju.das.jz@...renesas.com>

As per the suspend_devices_and_enter(), if .suspend() fails, it invoke the
.resume() callback. Currently ehci_resume() is called in 2 times if the
reset_control_assert fails in ehci_platform_suspend(). Drop the duplicate
ehci_resume() from ehci_platform_suspend() callback, as it is called
later from ehci_platform_resume() callback.

Also, drop the other duplicate callbacks pdata->power_on() and
quirk_poll_init().

Fixes: c31a401fe7ab ("usb: host: ehci-platform: Call reset assert/deassert on suspend/resume")
Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
---
 drivers/usb/host/ehci-platform.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index f61f095cedab..253405efe50e 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -454,18 +454,7 @@ static int __maybe_unused ehci_platform_suspend(struct device *dev)
 	if (pdata->power_suspend)
 		pdata->power_suspend(pdev);
 
-	ret = reset_control_assert(priv->rsts);
-	if (ret) {
-		if (pdata->power_on)
-			pdata->power_on(pdev);
-
-		ehci_resume(hcd, false);
-
-		if (priv->quirk_poll)
-			quirk_poll_init(priv);
-	}
-
-	return ret;
+	return reset_control_assert(priv->rsts);
 }
 
 static int __maybe_unused ehci_platform_resume(struct device *dev)
-- 
2.43.0