Messages in this thread Patch in this message | | | From | Amelie Delaunay <> | Subject | [PATCH 5/6] phy: stm32: ensure phy are no more active when removing the driver | Date | Mon, 23 Nov 2020 18:01:31 +0100 |
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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 --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); -- 2.17.1
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