diff mbox series

[RESEND,v3,3/3] phy: core: Warn when phy_power_on is called before phy_init

Message ID 20220407102108.24211-4-jmaselbas@kalray.eu
State New
Headers show
Series Cleanup the call ordering of phy_init and phy_power_on | expand

Commit Message

Jules Maselbas April 7, 2022, 10:21 a.m. UTC
A warning when the order of phy operation is mixed up by drivers,
this is an atempt to make the phy usage more uniform across (usb)
drivers.

Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: Amelie DELAUNAY <amelie.delaunay@foss.st.com>
Cc: Minas Harutyunyan <hminas@synopsys.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
---
 drivers/phy/phy-core.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index d11b517e283a..90f589563a60 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -253,6 +253,9 @@  int phy_init(struct phy *phy)
 	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
+	if (phy->power_count > phy->init_count)
+		dev_warn(&phy->dev, "phy_power_on was called before phy_init\n");
+
 	if (phy->init_count == 0 && phy->ops->init) {
 		ret = phy->ops->init(phy);
 		if (ret < 0) {