diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2025-02-09 14:31:45 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2025-02-13 23:25:17 +0530 |
| commit | d58c04e305afbaa9dda7969151f06c4efe2c98b0 (patch) | |
| tree | f2385e52766131a796eb9f0b338c723583f0ed03 /drivers/phy/phy-core.c | |
| parent | 13c1eb1b4bd169f820188c62acaa1f96677284b1 (diff) | |
phy: core: don't require set_mode() callback for phy_get_mode() to work
As reported by Damon Ding, the phy_get_mode() call doesn't work as
expected unless the PHY driver has a .set_mode() call. This prompts PHY
drivers to have empty stubs for .set_mode() for the sake of being able
to get the mode.
Make .set_mode() callback truly optional and update PHY's mode even if
it there is none.
Cc: Damon Ding <damon.ding@rock-chips.com>
Link: https://lore.kernel.org/r/96f8310f-93f1-4bcb-8637-137e1159ff83@rock-chips.com
Tested-by: Damon Ding <damon.ding@rock-chips.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250209-phy-fix-set-moe-v2-1-76e248503856@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy/phy-core.c')
| -rw-r--r-- | drivers/phy/phy-core.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 8dfdce605a90..067316dfcd83 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -405,13 +405,14 @@ EXPORT_SYMBOL_GPL(phy_power_off); int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode) { - int ret; + int ret = 0; - if (!phy || !phy->ops->set_mode) + if (!phy) return 0; mutex_lock(&phy->mutex); - ret = phy->ops->set_mode(phy, mode, submode); + if (phy->ops->set_mode) + ret = phy->ops->set_mode(phy, mode, submode); if (!ret) phy->attrs.mode = mode; mutex_unlock(&phy->mutex); |