2020-11-10 10:26:35

by Amelie Delaunay

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Subject: [PATCH 2/2] phy: stm32: defer probe for reset controller

Change stm32-usbphyc driver to defer its probe when the expected reset
control has its probe operation deferred.

Signed-off-by: Etienne Carriere <[email protected]>
Signed-off-by: Amelie Delaunay <[email protected]>
---
drivers/phy/st/phy-stm32-usbphyc.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-stm32-usbphyc.c
index fe3085eec201..f3f582a3ccdb 100644
--- a/drivers/phy/st/phy-stm32-usbphyc.c
+++ b/drivers/phy/st/phy-stm32-usbphyc.c
@@ -342,6 +342,10 @@ static int stm32_usbphyc_probe(struct platform_device *pdev)
reset_control_assert(usbphyc->rst);
udelay(2);
reset_control_deassert(usbphyc->rst);
+ } else {
+ ret = PTR_ERR(usbphyc->rst);
+ if (ret == -EPROBE_DEFER)
+ goto clk_disable;
}

usbphyc->switch_setup = -EINVAL;
--
2.17.1