FAILED: patch "[PATCH] phy: renesas: rcar-gen3-usb2: Assert PLL reset on PHY power" failed to apply to 6.6-stable tree

The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 9ce71e85b29eb63e48e294479742e670513f03a0
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2025051908-smock-python-51a3@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 9ce71e85b29eb63e48e294479742e670513f03a0 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <[email protected]>
Date: Wed, 7 May 2025 15:50:31 +0300
Subject: [PATCH] phy: renesas: rcar-gen3-usb2: Assert PLL reset on PHY power
off

Assert PLL reset on PHY power off. This saves power.

index 00ce564463de..118899efda70 100644
@@ -537,9 +537,17 @@ static int rcar_gen3_phy_usb2_power_off(struct phy *p)
 	struct rcar_gen3_chan *channel = rphy->ch;
 	int ret = 0;
 
-	scoped_guard(spinlock_irqsave, &channel->lock)
+	scoped_guard(spinlock_irqsave, &channel->lock) {
 		rphy->powered = false;
 
+		if (rcar_gen3_are_all_rphys_power_off(channel)) {
+			u32 val = readl(channel->base + USB2_USBCTR);
+
+			val |= USB2_USBCTR_PLL_RST;
+			writel(val, channel->base + USB2_USBCTR);
+		}
+	}
+
 	if (channel->vbus)
 		ret = regulator_disable(channel->vbus);