Commit 6813cc8c authored by Joakim Zhang's avatar Joakim Zhang Committed by David S. Miller
Browse files

net: phy: realtek: add delay to fix RXC generation issue 



PHY will delay about 11.5ms to generate RXC clock when switching from
power down to normal operation. Read/write registers would also cause RXC
become unstable and stop for a while during this process. Realtek engineer
suggests 15ms or more delay can workaround this issue.

Signed-off-by: default avatarJoakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d90db36a

drivers/net/phy/realtek.c

+14 −1
Original line number Diff line number Diff line
@@ -410,6 +410,19 @@ static int rtl8211f_config_init(struct phy_device *phydev) 
	return genphy_soft_reset(phydev);

}



static int rtl821x_resume(struct phy_device *phydev)

{

	int ret;



	ret = genphy_resume(phydev);

	if (ret < 0)

		return ret;



	msleep(20);



	return 0;

}



static int rtl8211e_config_init(struct phy_device *phydev)

{

	int ret = 0, oldpage;
@@ -906,7 +919,7 @@ static struct phy_driver realtek_drvs[] = { 
		.config_intr	= &rtl8211f_config_intr,

		.handle_interrupt = rtl8211f_handle_interrupt,

		.suspend	= genphy_suspend,

		.resume		= genphy_resume,

		.resume		= rtl821x_resume,

		.read_page	= rtl821x_read_page,

		.write_page	= rtl821x_write_page,

	}, {