From: Xu Liang <lxu@maxlinear.com>
To: <andrew@lunn.ch>, <hkallweit1@gmail.com>,
<netdev@vger.kernel.org>, <davem@davemloft.net>,
<kuba@kernel.org>
Cc: <linux@armlinux.org.uk>, <hmehrtens@maxlinear.com>,
<tmohren@maxlinear.com>, <mohammad.athari.ismail@intel.com>,
<edumazet@google.com>, <pabeni@redhat.com>,
Xu Liang <lxu@maxlinear.com>
Subject: [PATCH net v2] net: phy: mxl-gpy: fix delay time required by loopback disable function
Date: Wed, 21 Dec 2022 17:43:58 +0800 [thread overview]
Message-ID: <20221221094358.29639-1-lxu@maxlinear.com> (raw)
GPY2xx devices need 3 seconds to fully switch out of loopback mode
before it can safely re-enter loopback mode.
Signed-off-by: Xu Liang <lxu@maxlinear.com>
---
drivers/net/phy/mxl-gpy.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/mxl-gpy.c b/drivers/net/phy/mxl-gpy.c
index 147d7a5a9b35..b682d7fc477c 100644
--- a/drivers/net/phy/mxl-gpy.c
+++ b/drivers/net/phy/mxl-gpy.c
@@ -770,9 +770,11 @@ static int gpy_loopback(struct phy_device *phydev, bool enable)
enable ? BMCR_LOOPBACK : 0);
if (!ret) {
/* It takes some time for PHY device to switch
- * into/out-of loopback mode.
+ * into/out-of loopback mode. It takes 3 seconds
+ * to fully switch out of loopback mode before
+ * it can safely re-enter loopback mode.
*/
- msleep(100);
+ msleep(enable ? 100 : 3000);
}
return ret;
--
2.17.1
next reply other threads:[~2022-12-21 9:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-21 9:43 Xu Liang [this message]
2022-12-21 12:21 ` [PATCH net v2] net: phy: mxl-gpy: fix delay time required by loopback disable function Russell King (Oracle)
2022-12-22 5:23 ` Liang Xu
2022-12-27 10:56 ` Michael Walle
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