diff mbox series

[5/6] phy: stm32: ensure phy are no more active when removing the driver

Message ID 20201123170132.17859-6-amelie.delaunay@st.com (mailing list archive)
State New, archived
Headers show
Series STM32 USBPHYC PLL management rework | expand

Commit Message

Amelie Delaunay Nov. 23, 2020, 5:01 p.m. UTC 
To ensure a good balancing of regulators, and allow PLL disabling when the
driver is removed, call stm32_usbphyc_phy_exit on each ports to set phys
inactive and disable PLL.

Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
---
 drivers/phy/st/phy-stm32-usbphyc.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-stm32-usbphyc.c
index 33367a325612..8b11d95b2c20 100644
--- a/drivers/phy/st/phy-stm32-usbphyc.c
+++ b/drivers/phy/st/phy-stm32-usbphyc.c
@@ -470,6 +470,12 @@  static int stm32_usbphyc_probe(struct platform_device *pdev)
 static int stm32_usbphyc_remove(struct platform_device *pdev)
 {
 	struct stm32_usbphyc *usbphyc = dev_get_drvdata(&pdev->dev);
+	int port;
+
+	/* Ensure PHYs are not active, to allow PLL disabling */
+	for (port = 0; port < usbphyc->nphys; port++)
+		if (usbphyc->phys[port]->active)
+			stm32_usbphyc_phy_exit(usbphyc->phys[port]->phy);
 
 	clk_disable_unprepare(usbphyc->clk);