| Message ID | 20190121064813.18444-2-kishon@ti.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | PHY: Add support for SERDES in TI's AM654 platform | expand |
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 19b05e824ee4..bf3a1fc18117 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -384,10 +384,16 @@ int phy_reset(struct phy *phy) if (!phy || !phy->ops->reset) return 0; + ret = phy_pm_runtime_get_sync(phy); + if (ret < 0 && ret != -ENOTSUPP) + return ret; + mutex_lock(&phy->mutex); ret = phy->ops->reset(phy); mutex_unlock(&phy->mutex); + phy_pm_runtime_put(phy); + return ret; } EXPORT_SYMBOL_GPL(phy_reset);
PHY drivers may try to access PHY registers in the ->reset() callback. Invoke phy_pm_runtime_get_sync() before invoking the ->reset() callback so that the PHY drivers don't have to enable clocks by themselves before accessing PHY registers. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- drivers/phy/phy-core.c | 6 ++++++ 1 file changed, 6 insertions(+) -- 2.17.1