iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Revert "at803x: fix suspend/resume for SGMII link"

Browse Source 
This reverts commit 98267311fe3b334ae7c107fa0e2413adcf3ba735.

Suspending the SGMII alongside the copper side
made the at803x inaccessable while powered down,
e.g. it can't be re-probed after suspend.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zefir Kurtisi 2016-10-24 12:40:53 +02:00 committed by David S. Miller
parent 67f0160fe3
commit 4fc6d239ee
1 changed files with 0 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/net/phy/at803x.c
View File

@ -52,9 +52,6 @@
#define AT803X_DEBUG_REG_5 0x05
#define AT803X_DEBUG_TX_CLK_DLY_EN BIT(8)
#define AT803X_REG_CHIP_CONFIG 0x1f
#define AT803X_BT_BX_REG_SEL 0x8000
#define ATH8030_PHY_ID 0x004dd076
#define ATH8031_PHY_ID 0x004dd074
#define ATH8035_PHY_ID 0x004dd072
@ -209,7 +206,6 @@ static int at803x_suspend(struct phy_device *phydev)
{
int value;
int wol_enabled;
int ccr;
mutex_lock(&phydev->lock);
@ -225,16 +221,6 @@ static int at803x_suspend(struct phy_device *phydev)
phy_write(phydev, MII_BMCR, value);
if (phydev->interface != PHY_INTERFACE_MODE_SGMII)
goto done;
/* also power-down SGMII interface */
ccr = phy_read(phydev, AT803X_REG_CHIP_CONFIG);
phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr & ~AT803X_BT_BX_REG_SEL);
phy_write(phydev, MII_BMCR, phy_read(phydev, MII_BMCR) | BMCR_PDOWN);
phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL);
done:
mutex_unlock(&phydev->lock);
return 0;
@ -243,7 +229,6 @@ done:
static int at803x_resume(struct phy_device *phydev)
{
int value;
int ccr;
mutex_lock(&phydev->lock);
@ -251,17 +236,6 @@ static int at803x_resume(struct phy_device *phydev)
value &= ~(BMCR_PDOWN | BMCR_ISOLATE);
phy_write(phydev, MII_BMCR, value);
if (phydev->interface != PHY_INTERFACE_MODE_SGMII)
goto done;
/* also power-up SGMII interface */
ccr = phy_read(phydev, AT803X_REG_CHIP_CONFIG);
phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr & ~AT803X_BT_BX_REG_SEL);
value = phy_read(phydev, MII_BMCR) & ~(BMCR_PDOWN | BMCR_ISOLATE);
phy_write(phydev, MII_BMCR, value);
phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL);
done:
mutex_unlock(&phydev->lock);
return 0;