linux-kernel - [PATCH AUTOSEL 5.15 06/47] usb: host: xhci-plat: suspend/resume clks for brcm

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Message-Id: <20221013002124.1894077-6-sashal@kernel.org>
Date:   Wed, 12 Oct 2022 20:20:41 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Justin Chen <justinpopo6@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>, mathias.nyman@...el.com,
        linux-usb@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 06/47] usb: host: xhci-plat: suspend/resume clks for brcm

From: Justin Chen <justinpopo6@...il.com>

[ Upstream commit c69400b09e471a3f1167adead55a808f0da6534a ]

The xhci_plat_brcm xhci block can enter suspend with clock disabled to save
power and re-enable them on resume. Make use of the XHCI_SUSPEND_RESUME_CLKS
quirk to do so.

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: Justin Chen <justinpopo6@...il.com>
Link: https://lore.kernel.org/r/1660170455-15781-3-git-send-email-justinpopo6@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/usb/host/xhci-plat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 2687662f26b6..972a44b2a7f1 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -134,7 +134,7 @@ static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
 };
 
 static const struct xhci_plat_priv xhci_plat_brcm = {
-	.quirks = XHCI_RESET_ON_RESUME,
+	.quirks = XHCI_RESET_ON_RESUME | XHCI_SUSPEND_RESUME_CLKS,
 };
 
 static const struct of_device_id usb_xhci_of_match[] = {
-- 
2.35.1