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phy: stm32: ensure phy are no more active when removing the driver

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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@foss.st.com>
Link: https://lore.kernel.org/r/20210105090525.23164-6-amelie.delaunay@foss.st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Amelie Delaunay 2021-01-05 10:05:24 +01:00 committed by Vinod Koul
parent 56bf858edd
commit 649627245c
1 changed files with 6 additions and 0 deletions
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6
drivers/phy/st/phy-stm32-usbphyc.c
View file

@ -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);