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Subject[PATCH net-next v5 09/10] net: phy: smsc: use phy_read_poll_timeout() to simplify the code
Date
use phy_read_poll_timeout() to replace the poll codes for
simplify lan87xx_read_status() function.

it should be add msleep(10) before call phy_read_poll_timeout()
to keep the code more similar, but it will report that warning, so
modify it to msleep(20).

./scripts/checkpatch.pl
v5-0009-net-phy-smsc-use-phy_read_poll_timeout-to-simplif.patch
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.rst
#42: FILE: drivers/net/phy/smsc.c:126:
+ msleep(10);

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
---
v4 -> v5:
- add msleep before phy_read_poll_timeout() to keep the
code more similar
v3 -> v4:
- add this patch by Andrew's suggestion. Thanks Andrew!

drivers/net/phy/smsc.c | 17 ++++++-----------
1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index b73298250793..f888523086ed 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -112,8 +112,6 @@ static int lan87xx_read_status(struct phy_device *phydev)
int err = genphy_read_status(phydev);

if (!phydev->link && priv->energy_enable) {
- int i;
-
/* Disable EDPD to wake up PHY */
int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
if (rc < 0)
@@ -125,15 +123,12 @@ static int lan87xx_read_status(struct phy_device *phydev)
return rc;

/* Wait max 640 ms to detect energy */
- for (i = 0; i < 64; i++) {
- /* Sleep to allow link test pulses to be sent */
- msleep(10);
- rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
- if (rc < 0)
- return rc;
- if (rc & MII_LAN83C185_ENERGYON)
- break;
- }
+ msleep(20);
+ phy_read_poll_timeout(phydev, MII_LAN83C185_CTRL_STATUS, rc,
+ rc & MII_LAN83C185_ENERGYON, 10000,
+ 620000);
+ if (rc < 0)
+ return rc;

/* Re-enable EDPD */
rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
--
2.25.0
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