linux-kernel - [PATCH] phy: rockchip-inno-usb2: Sync initial otg state

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 21 Jun 2022 20:31:40 -0400
From:   Peter Geis <pgwipeout@...il.com>
To:     Heiko Stuebner <heiko@...ech.de>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Samuel Holland <samuel@...lland.org>
Cc:     Peter Geis <pgwipeout@...il.com>, linux-phy@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] phy: rockchip-inno-usb2: Sync initial otg state

The initial otg state for the phy defaults to device mode. The actual
state isn't detected until an ID IRQ fires. Fix this by syncing the ID
state during initialization.

Fixes: 51a9b2c03dd3 ("phy: rockchip-inno-usb2: Handle ID IRQ")
Signed-off-by: Peter Geis <pgwipeout@...il.com>
---
 drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index 6711659f727c..6e44069617df 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -1162,6 +1162,12 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
 					EXTCON_USB_HOST, &rport->event_nb);
 		if (ret)
 			dev_err(rphy->dev, "register USB HOST notifier failed\n");
+
+		if (!of_property_read_bool(rphy->dev->of_node, "extcon")) {
+			/* do initial sync of usb state */
+			ret = property_enabled(rphy->grf, &rport->port_cfg->utmi_id);
+			extcon_set_state_sync(rphy->edev, EXTCON_USB_HOST, !ret);
+		}
 	}
 
 out:
-- 
2.25.1