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From: Dejin Zheng <zhengdejin5@gmail.com>
To: andrew@lunn.ch, f.fainelli@gmail.com, hkallweit1@gmail.com,
	linux@armlinux.org.uk, davem@davemloft.net, allison@lohutok.net,
	tglx@linutronix.de, gregkh@linuxfoundation.org,
	mchehab+samsung@kernel.org, netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Dejin Zheng <zhengdejin5@gmail.com>
Subject: [PATCH net-next v3 7/7] net: phy: use phy_read_poll_timeout() to simplify the code
Date: Sun, 22 Mar 2020 10:48:34 +0800	[thread overview]
Message-ID: <20200322024834.31402-8-zhengdejin5@gmail.com> (raw)
In-Reply-To: <20200322024834.31402-1-zhengdejin5@gmail.com>

use phy_read_poll_timeout() to replace the poll codes for
simplify the code in phy_poll_reset() function.

Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
---
v2 -> v3:
	- adapt to it after modifying the parameter order of the
	  newly added function
v1 -> v2:
	- remove the handle of phy_read()'s return error.

 drivers/net/phy/phy_device.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index a585faf8b844..cfe7aae35084 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1059,23 +1059,15 @@ EXPORT_SYMBOL(phy_disconnect);
 static int phy_poll_reset(struct phy_device *phydev)
 {
 	/* Poll until the reset bit clears (50ms per retry == 0.6 sec) */
-	unsigned int retries = 12;
-	int ret;
-
-	do {
-		msleep(50);
-		ret = phy_read(phydev, MII_BMCR);
-		if (ret < 0)
-			return ret;
-	} while (ret & BMCR_RESET && --retries);
-	if (ret & BMCR_RESET)
-		return -ETIMEDOUT;
+	int ret, val;
 
+	ret = phy_read_poll_timeout(phydev, MII_BMCR, val, !(val & BMCR_RESET),
+				    50000, 600000);
 	/* Some chips (smsc911x) may still need up to another 1ms after the
 	 * BMCR_RESET bit is cleared before they are usable.
 	 */
 	msleep(1);
-	return 0;
+	return ret;
 }
 
 int phy_init_hw(struct phy_device *phydev)
-- 
2.25.0


  parent reply	other threads:[~2020-03-22  2:49 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-22  2:48 [PATCH net-next v3 0/7] introduce read_poll_timeout Dejin Zheng
2020-03-22  2:48 ` [PATCH net-next v3 1/7] iopoll: introduce read_poll_timeout macro Dejin Zheng
2020-03-22  2:48 ` [PATCH net-next v3 2/7] iopoll: redefined readx_poll_timeout macro to simplify the code Dejin Zheng
2020-03-22  2:48 ` [PATCH net-next v3 3/7] net: phy: introduce phy_read_mmd_poll_timeout macro Dejin Zheng
2020-03-22  2:48 ` [PATCH net-next v3 4/7] net: phy: bcm84881: use phy_read_mmd_poll_timeout() to simplify the code Dejin Zheng
2020-03-22  2:48 ` [PATCH net-next v3 5/7] net: phy: aquantia: " Dejin Zheng
2020-03-22  2:48 ` [PATCH net-next v3 6/7] net: phy: introduce phy_read_poll_timeout macro Dejin Zheng
2020-03-22  2:48 ` Dejin Zheng [this message]
2020-03-22  2:57   ` [PATCH net-next v3 7/7] net: phy: use phy_read_poll_timeout() to simplify the code Florian Fainelli
2020-03-22  6:12     ` Dejin Zheng

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