59 lines
1.6 KiB
Diff
59 lines
1.6 KiB
Diff
From 2b37cb9576a0a66242a2081f7a0709355e15c6b0 Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megi@xff.cz>
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Date: Sun, 30 Apr 2023 18:54:51 +0200
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Subject: [PATCH 372/469] usb: dwc3: Track the power state of usb3_generic_phy
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We will need to manage power state of this phy inisde set_mode work,
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without any ability to perform recovery if power on fails, so we'll
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need to track result of power on separately, to be able to balance
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the phy on/off calls.
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Signed-off-by: Ondrej Jirman <megi@xff.cz>
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# Conflicts:
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# drivers/usb/dwc3/core.c
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---
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drivers/usb/dwc3/core.c | 6 +++++-
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drivers/usb/dwc3/core.h | 1 +
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2 files changed, 6 insertions(+), 1 deletion(-)
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diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
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index d68958e151a7..6a72e002b0ff 100644
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--- a/drivers/usb/dwc3/core.c
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+++ b/drivers/usb/dwc3/core.c
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@@ -781,6 +781,7 @@ static int dwc3_phy_power_on(struct dwc3 *dwc)
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if (ret < 0)
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goto err_power_off_usb2_phy;
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+ dwc->usb3_phy_powered = true;
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return 0;
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err_power_off_usb2_phy:
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@@ -794,7 +795,10 @@ static int dwc3_phy_power_on(struct dwc3 *dwc)
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static void dwc3_phy_power_off(struct dwc3 *dwc)
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{
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- phy_power_off(dwc->usb3_generic_phy);
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+ if (dwc->usb3_phy_powered)
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+ phy_power_off(dwc->usb3_generic_phy);
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+ dwc->usb3_phy_powered = false;
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+
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phy_power_off(dwc->usb2_generic_phy);
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usb_phy_set_suspend(dwc->usb3_phy, 1);
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diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
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index 1f043c31a096..6a7bd508bece 100644
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--- a/drivers/usb/dwc3/core.h
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+++ b/drivers/usb/dwc3/core.h
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@@ -1165,6 +1165,7 @@ struct dwc3 {
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struct phy *usb2_generic_phy;
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struct phy *usb3_generic_phy;
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+ bool usb3_phy_powered;
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bool phys_ready;
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--
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2.34.1
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