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phy: stm32: defer probe for reset controller
author
Amelie Delaunay
<amelie.delaunay@st.com>
Tue, 10 Nov 2020 10:23:05 +0000
(11:23 +0100)
committer
Vinod Koul
<vkoul@kernel.org>
Mon, 16 Nov 2020 09:49:03 +0000
(15:19 +0530)
Change stm32-usbphyc driver to defer its probe when the expected reset
control has its probe operation deferred.
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link:
https://lore.kernel.org/r/20201110102305.27205-2-amelie.delaunay@st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
drivers/phy/st/phy-stm32-usbphyc.c
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diff --git
a/drivers/phy/st/phy-stm32-usbphyc.c
b/drivers/phy/st/phy-stm32-usbphyc.c
index 8ebfd567d407d81511917d44feab99c2081a6324..a54317e96c41144e3d8f2a4e5157327743519279 100644
(file)
--- a/
drivers/phy/st/phy-stm32-usbphyc.c
+++ b/
drivers/phy/st/phy-stm32-usbphyc.c
@@
-340,6
+340,10
@@
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;