diff options
| author | Xu Liang <lxu@maxlinear.com> | 2021-09-27 09:03:02 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-09-27 14:49:38 +0200 |
| commit | 3b1b6e82fb5e08e2cb355d7b2ee8644ec289de66 (patch) | |
| tree | 2cdf7fa4acbea805c0dacc928fa104d2989aecbe /drivers/net | |
| parent | Merge tag 'mac80211-for-net-2021-09-27' of git://git.kernel.org/pub/scm/linux... (diff) | |
| download | linux-3b1b6e82fb5e08e2cb355d7b2ee8644ec289de66.tar.xz linux-3b1b6e82fb5e08e2cb355d7b2ee8644ec289de66.zip | |
net: phy: enhance GPY115 loopback disable function
GPY115 need reset PHY when it comes out from loopback mode if the firmware
version number (lower 8 bits) is equal to or below 0x76.
Fixes: 7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver")
Signed-off-by: Xu Liang <lxu@maxlinear.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/phy/mxl-gpy.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/net/phy/mxl-gpy.c b/drivers/net/phy/mxl-gpy.c index 2d5d5081c3b6..5ce1bf03bbd7 100644 --- a/drivers/net/phy/mxl-gpy.c +++ b/drivers/net/phy/mxl-gpy.c @@ -493,6 +493,25 @@ static int gpy_loopback(struct phy_device *phydev, bool enable) return ret; } +static int gpy115_loopback(struct phy_device *phydev, bool enable) +{ + int ret; + int fw_minor; + + if (enable) + return gpy_loopback(phydev, enable); + + ret = phy_read(phydev, PHY_FWV); + if (ret < 0) + return ret; + + fw_minor = FIELD_GET(PHY_FWV_MINOR_MASK, ret); + if (fw_minor > 0x0076) + return gpy_loopback(phydev, 0); + + return genphy_soft_reset(phydev); +} + static struct phy_driver gpy_drivers[] = { { PHY_ID_MATCH_MODEL(PHY_ID_GPY2xx), @@ -527,7 +546,7 @@ static struct phy_driver gpy_drivers[] = { .handle_interrupt = gpy_handle_interrupt, .set_wol = gpy_set_wol, .get_wol = gpy_get_wol, - .set_loopback = gpy_loopback, + .set_loopback = gpy115_loopback, }, { PHY_ID_MATCH_MODEL(PHY_ID_GPY115C), @@ -544,7 +563,7 @@ static struct phy_driver gpy_drivers[] = { .handle_interrupt = gpy_handle_interrupt, .set_wol = gpy_set_wol, .get_wol = gpy_get_wol, - .set_loopback = gpy_loopback, + .set_loopback = gpy115_loopback, }, { .phy_id = PHY_ID_GPY211B, |