Update mdiobb_read() to read whether the PHY has a broken turn-around,
and if it does, ignore it to make the read succeeed.
Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
drivers/net/phy/mdio-bitbang.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
index daec9b05d168..61a543c788cc 100644
--- a/drivers/net/phy/mdio-bitbang.c
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -165,8 +165,11 @@ static int mdiobb_read(struct mii_bus *bus, int phy, int
reg)
ctrl->ops->set_mdio_dir(ctrl, 0);
- /* check the turnaround bit: the PHY should be driving it to zero */
- if (mdiobb_get_bit(ctrl) != 0) {
+ /* check the turnaround bit: the PHY should be driving it to zero, if
this
+ * PHY is listed in phy_ignore_ta_mask as having broken TA, skip that
+ */
+ if (mdiobb_get_bit(ctrl) != 0 &&
+ !(bus->phy_ignore_ta_mask & (1 << phy))) {
/* PHY didn't drive TA low -- flush any bits it
* may be trying to send.
*/
--
2.1.0
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