From: Johan Hovold <johan@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Felipe Balbi <balbi@kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>, Bin Liu <b-liu@ti.com>,
linux-usb@vger.kernel.org, linux-omap@vger.kernel.org,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
Johan Hovold <johan@kernel.org>
Subject: [v2,2/6] USB: core: hcd: drop support for legacy phys
Date: Wed, 18 Apr 2018 11:26:20 +0200 [thread overview]
Message-ID: <20180418092624.12361-3-johan@kernel.org> (raw)
Drop support for looking up and initialising legacy phys in USB core,
something which hasn't been used by a mainline kernel since commit
9080b8dc761a ("ARM: OMAP2+: Remove legacy usb-host.c platform init
code"). Specifically, since that commit usb_get_phy_dev() have always
returned -ENODEV and consequently this code has not been used.
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/core/hcd.c | 38 +++-----------------------------------
include/linux/usb/hcd.h | 1 -
2 files changed, 3 insertions(+), 36 deletions(-)
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 777036ae6367..6241d32c5ba7 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -33,7 +33,6 @@
#include <linux/phy/phy.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
-#include <linux/usb/phy.h>
#include <linux/usb/otg.h>
#include "usb.h"
@@ -2739,30 +2738,10 @@ int usb_add_hcd(struct usb_hcd *hcd,
int retval;
struct usb_device *rhdev;
- if (IS_ENABLED(CONFIG_USB_PHY) && !hcd->skip_phy_initialization) {
- struct usb_phy *phy = usb_get_phy_dev(hcd->self.sysdev, 0);
-
- if (IS_ERR(phy)) {
- retval = PTR_ERR(phy);
- if (retval == -EPROBE_DEFER)
- return retval;
- } else {
- retval = usb_phy_init(phy);
- if (retval) {
- usb_put_phy(phy);
- return retval;
- }
- hcd->usb_phy = phy;
- hcd->remove_phy = 1;
- }
- }
-
if (!hcd->skip_phy_initialization && usb_hcd_is_primary_hcd(hcd)) {
hcd->phy_roothub = usb_phy_roothub_init(hcd->self.sysdev);
- if (IS_ERR(hcd->phy_roothub)) {
- retval = PTR_ERR(hcd->phy_roothub);
- goto err_phy_roothub_init;
- }
+ if (IS_ERR(hcd->phy_roothub))
+ return PTR_ERR(hcd->phy_roothub);
retval = usb_phy_roothub_power_on(hcd->phy_roothub);
if (retval)
@@ -2936,12 +2915,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
usb_phy_roothub_power_off(hcd->phy_roothub);
err_usb_phy_roothub_power_on:
usb_phy_roothub_exit(hcd->phy_roothub);
-err_phy_roothub_init:
- if (hcd->remove_phy && hcd->usb_phy) {
- usb_phy_shutdown(hcd->usb_phy);
- usb_put_phy(hcd->usb_phy);
- hcd->usb_phy = NULL;
- }
+
return retval;
}
EXPORT_SYMBOL_GPL(usb_add_hcd);
@@ -3017,12 +2991,6 @@ void usb_remove_hcd(struct usb_hcd *hcd)
usb_phy_roothub_power_off(hcd->phy_roothub);
usb_phy_roothub_exit(hcd->phy_roothub);
- if (hcd->remove_phy && hcd->usb_phy) {
- usb_phy_shutdown(hcd->usb_phy);
- usb_put_phy(hcd->usb_phy);
- hcd->usb_phy = NULL;
- }
-
usb_put_invalidate_rhdev(hcd);
hcd->flags = 0;
}
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index aef50cb2ed1b..e33009c77840 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -150,7 +150,6 @@ struct usb_hcd {
unsigned rh_pollable:1; /* may we poll the root hub? */
unsigned msix_enabled:1; /* driver has MSI-X enabled? */
unsigned msi_enabled:1; /* driver has MSI enabled? */
- unsigned remove_phy:1; /* auto-remove USB phy */
/*
* do not manage the PHY state in the HCD core, instead let the driver
* handle this (for example if the PHY can only be turned on after a
reply other threads:[~2018-04-18 9:26 UTC|newest]
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