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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 19:51:18 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 19:51:18 +0300 |
commit | c6dbef7307629cce855aa6b482b60cbf7777ed88 (patch) | |
tree | d8d13630bd57090173ad9f0c5f8e3bfb392964c9 /drivers/usb/isp1760/isp1760-hcd.c | |
parent | ade7afe3e606f9f6ff0e6deefce140157f75540b (diff) | |
parent | 93578a25d4e21603518daf27a5f9caa4bf79de68 (diff) | |
download | linux-c6dbef7307629cce855aa6b482b60cbf7777ed88.tar.xz |
Merge tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY/Thunderbolt driver updates from Greg KH:
"Here is the big set of USB, PHY, and Thunderbolt driver updates for
5.10-rc1.
Lots of tiny different things for these subsystems are in here,
including:
- phy driver updates
- thunderbolt / USB 4 updates and additions
- USB gadget driver updates
- xhci fixes and updates
- typec driver additions and updates
- api conversions to various drivers for core kernel api changes
- new USB control message functions to make it harder to get wrong,
as found by syzbot (took 2 tries to get it right)
- lots of tiny USB driver fixes and updates all over the place
All of these have been in linux-next for a while, with the exception
of the last "obviously correct" patch that updated a FALLTHROUGH
comment that got merged last weekend"
* tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (374 commits)
usb: musb: gadget: Use fallthrough pseudo-keyword
usb: typec: Add QCOM PMIC typec detection driver
USB: serial: option: add Cellient MPL200 card
usb: typec: tcpci_maxim: Add support for Sink FRS
usb: typec: tcpci: Implement callbacks for FRS
usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)
usb: typec: tcpci_maxim: Chip level TCPC driver
usb: typec: tcpci: Add set_vbus tcpci callback
usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference
usbip: vhci_hcd: fix calling usb_hcd_giveback_urb() with irqs enabled
usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
USB: serial: ftdi_sio: use cur_altsetting for consistency
USB: serial: option: Add Telit FT980-KS composition
USB: core: remove polling for /sys/kernel/debug/usb/devices
usb: typec: add support for STUSB160x Type-C controller family
usb: typec: add typec_find_pwr_opmode
usb: typec: hd3ss3220: Use OF graph API to get the connector fwnode
dt-bindings: usb: renesas,usb3-peri: Document HS and SS data bus
dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schema
usb: dwc2: Fix INTR OUT transfers in DDMA mode.
...
Diffstat (limited to 'drivers/usb/isp1760/isp1760-hcd.c')
-rw-r--r-- | drivers/usb/isp1760/isp1760-hcd.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c index dd74ab7a2f9c..33ae656c4b68 100644 --- a/drivers/usb/isp1760/isp1760-hcd.c +++ b/drivers/usb/isp1760/isp1760-hcd.c @@ -22,6 +22,7 @@ #include <linux/debugfs.h> #include <linux/uaccess.h> #include <linux/io.h> +#include <linux/iopoll.h> #include <linux/mm.h> #include <linux/timer.h> #include <asm/unaligned.h> @@ -380,18 +381,15 @@ static int handshake(struct usb_hcd *hcd, u32 reg, u32 mask, u32 done, int usec) { u32 result; + int ret; + + ret = readl_poll_timeout_atomic(hcd->regs + reg, result, + ((result & mask) == done || + result == U32_MAX), 1, usec); + if (result == U32_MAX) + return -ENODEV; - do { - result = reg_read32(hcd->regs, reg); - if (result == ~0) - return -ENODEV; - result &= mask; - if (result == done) - return 0; - udelay(1); - usec--; - } while (usec > 0); - return -ETIMEDOUT; + return ret; } /* reset a non-running (STS_HALT == 1) controller */ |