Commit Graph

626 Commits

Author SHA1 Message Date
Christophe JAILLET f057a1d4f0 usb: Remove redundant 'flush_workqueue()' calls
'destroy_workqueue()' already drains the queue before destroying it, so
there is no need to flush it explicitly.

Remove the redundant 'flush_workqueue()' calls.

This was generated with coccinelle:

@@
expression E;
@@
- 	flush_workqueue(E);
	destroy_workqueue(E);

Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Peter Chen <peter.chen@kernel.or> # for chipidea part
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/563123a8117d6cafae3f134e497587bd2b8bb7f4.1636734453.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-17 14:36:57 +01:00
Zhiwei Yang ef53d3db1c USB: phy: tahvo:remove unnecessary debug log
Remove the debug info which should be instead with ftrace

Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Zhiwei Yang <yangzhiwei@uniontech.com>
Link: https://lore.kernel.org/r/20210924083852.6029-1-yangzhiwei@uniontech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-05 12:51:07 +02:00
Dmitry Osipenko c1baf6c591 usb: phy: tegra: Support OTG mode programming
Support programming USB PHY into OTG mode.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20210912181718.1328-5-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-05 12:47:49 +02:00
Sergey Shtylyov 0d45a1373e usb: phy: tahvo: add IRQ check
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to request_threaded_irq() (which
takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding an
original error code.  Stop calling request_threaded_irq() with the invalid
IRQ #s.

Fixes: 9ba96ae507 ("usb: omap1: Tahvo USB transceiver driver")
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/8280d6a4-8e9a-7cfe-1aa9-db586dc9afdf@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-16 18:57:19 +02:00
Sergey Shtylyov 0881e22c06 usb: phy: twl6030: add IRQ checks
The driver neglects to check the result of platform_get_irq()'s calls and
blithely passes the negative error codes to request_threaded_irq() (which
takes *unsigned* IRQ #), causing them both to fail with -EINVAL, overriding
an original error code.  Stop calling request_threaded_irq() with the
invalid IRQ #s.

Fixes: c33fad0c37 ("usb: otg: Adding twl6030-usb transceiver driver for OMAP4430")
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/9507f50b-50f1-6dc4-f57c-3ed4e53a1c25@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-13 13:05:50 +02:00
Sergey Shtylyov ecc2f30dbb usb: phy: fsl-usb: add IRQ check
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to request_irq() (which takes
*unsigned* IRQ #), causing it to fail with -EINVAL, overriding an original
error code. Stop calling request_irq() with the invalid IRQ #s.

Fixes: 0807c500a1 ("USB: add Freescale USB OTG Transceiver driver")
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/b0a86089-8b8b-122e-fd6d-73e8c2304964@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-13 13:05:50 +02:00
Greg Kroah-Hartman d842bc6c05 Merge v5.14-rc3 into usb-next
We need the fixes in here, and this resolves a merge issue with
drivers/usb/dwc3/gadget.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-26 11:16:46 +02:00
Linus Walleij fb4e52b609 usb: isp1301-omap: Fix the GPIO include
The file is using only GPIO descriptors, so only include
<linux/gpio/consumer.h> instead of the legacy include.

This is a non-urgent fix.

Fixes: f3ef38160e ("usb: isp1301-omap: Convert to use GPIO descriptors")
Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210720200336.223398-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 10:06:30 +02:00
Artur Petrosyan 3d11de2d57 usb: phy: Fix page fault from usb_phy_uevent
When the dwc2 platform device is removed, it unregisters the generic
phy. usb_remove_phy() is called and the dwc2 usb_phy is removed from the
"phy_list", but the uevent may still attempt to get the usb_phy from the
list, resulting in a page fault bug. Currently we can't access the usb_phy
from the "phy_list" after the device is removed. As a fix check to make
sure that we can get the usb_phy before moving forward with the uevent.

[   84.949345] BUG: unable to handle page fault for address:00000007935688d8
[   84.949349] #PF: supervisor read access in kernel mode
[   84.949351] #PF: error_code(0x0000) - not-present page
[   84.949353] PGD 0 P4D 0
[   84.949356] Oops: 0000 [#1] SMP PTI
[   84.949360] CPU: 2 PID: 2081 Comm: rmmod Not tainted 5.13.0-rc4-snps-16547-ga8534cb092d7-dirty #32
[   84.949363] Hardware name: Hewlett-Packard HP Z400 Workstation/0B4Ch, BIOS 786G3 v03.54 11/02/2011
[   84.949365] RIP: 0010:usb_phy_uevent+0x99/0x121
[   84.949372] Code: 8d 83 f8 00 00 00 48 3d b0 12 22 94 74 05 4c 3b 23
75 5b 8b 83 9c 00 00 00 be 32 00 00 00 48 8d 7c 24 04 48 c7 c2 d4 5d 7b
93 <48> 8b 0c c5 e0 88 56 93 e8 0f 63 8a ff 8b 83 98 00 00 00 be 32 00
[   84.949375] RSP: 0018:ffffa46bc0f2fc70 EFLAGS: 00010246
[   84.949378] RAX: 00000000ffffffff RBX: ffffffff942211b8 RCX: 0000000000000027
[   84.949380] RDX: ffffffff937b5dd4 RSI: 0000000000000032 RDI: ffffa46bc0f2fc74
[   84.949383] RBP: ffff94a306613000 R08: 0000000000000000 R09: 00000000fffeffff
[   84.949385] R10: ffffa46bc0f2faa8 R11: ffffa46bc0f2faa0 R12: ffff94a30186d410
[   84.949387] R13: ffff94a32d188a80 R14: ffff94a30029f960 R15: ffffffff93522dd0
[   84.949389] FS:  00007efdbd417540(0000) GS:ffff94a513a80000(0000) knlGS:0000000000000000
[   84.949392] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   84.949394] CR2: 00000007935688d8 CR3: 0000000165606000 CR4: 00000000000006e0
[   84.949396] Call Trace:
[   84.949401]  dev_uevent+0x190/0x1ad
[   84.949408]  kobject_uevent_env+0x18e/0x46c
[   84.949414]  device_release_driver_internal+0x17f/0x18e
[   84.949418]  bus_remove_device+0xd3/0xe5
[   84.949421]  device_del+0x1c3/0x31d
[   84.949425]  ? kobject_put+0x97/0xa8
[   84.949428]  platform_device_del+0x1c/0x63
[   84.949432]  platform_device_unregister+0xa/0x11
[   84.949436]  dwc2_pci_remove+0x1e/0x2c [dwc2_pci]
[   84.949440]  pci_device_remove+0x31/0x81
[   84.949445]  device_release_driver_internal+0xea/0x18e
[   84.949448]  driver_detach+0x68/0x72
[   84.949450]  bus_remove_driver+0x63/0x82
[   84.949453]  pci_unregister_driver+0x1a/0x75
[   84.949457]  __do_sys_delete_module+0x149/0x1e9
[   84.949462]  ? task_work_run+0x64/0x6e
[   84.949465]  ? exit_to_user_mode_prepare+0xd4/0x10d
[   84.949471]  do_syscall_64+0x5d/0x70
[   84.949475]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   84.949480] RIP: 0033:0x7efdbd563bcb
[   84.949482] Code: 73 01 c3 48 8b 0d c5 82 0c 00 f7 d8 64 89 01 48 83
c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 82 0c 00 f7 d8 64 89 01 48
[   84.949485] RSP: 002b:00007ffe944d7d98 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[   84.949489] RAX: ffffffffffffffda RBX: 00005651072eb700 RCX: 00007efdbd563bcb
[   84.949491] RDX: 000000000000000a RSI: 0000000000000800 RDI: 00005651072eb768
[   84.949493] RBP: 00007ffe944d7df8 R08: 0000000000000000 R09: 0000000000000000
[   84.949495] R10: 00007efdbd5dfac0 R11: 0000000000000206 R12: 00007ffe944d7fd0
[   84.949497] R13: 00007ffe944d8610 R14: 00005651072eb2a0 R15: 00005651072eb700
[   84.949500] Modules linked in: uas configfs dwc2_pci(-) phy_generic fuse crc32c_intel [last unloaded: udc_core]
[   84.949508] CR2: 00000007935688d8
[   84.949510] ---[ end trace e40c871ca3e4dc9e ]---
[   84.949512] RIP: 0010:usb_phy_uevent+0x99/0x121

Fixes: a8534cb092 ("usb: phy: introduce usb_phy device type with its own uevent handler")
Reviewed-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20210710092247.D7AFEA005D@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 09:48:36 +02:00
Dmitry Osipenko 7917e90667 usb: phy: tegra: Correct definition of B_SESS_VLD_WAKEUP_EN bit
The B_SESS_VLD_WAKEUP_EN bit 6 was added by a mistake in a previous
commit. This bit corresponds to B_SESS_END_WAKEUP_EN, which we don't use.
The B_VBUS_VLD_WAKEUP_EN doesn't exist at all and B_SESS_VLD_WAKEUP_EN
needs to be in place of it. We don't utilize B-sensors in the driver,
so it never was a problem, nevertheless let's correct the definition of
the bits.

Fixes: 35192007d2 ("usb: phy: tegra: Support waking up from a low power mode")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210613145936.9902-2-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-15 15:36:23 +02:00
Dmitry Osipenko 6f8d39a8ef usb: phy: tegra: Wait for VBUS wakeup status deassertion on suspend
Some devices need an extra delay after losing VBUS, otherwise VBUS may
be detected as active at suspend time, preventing the PHY's suspension
by the VBUS detection sensor. This problem was found on Asus Transformer
TF700T (Tegra30) tablet device, where the USB PHY wakes up immediately
from suspend because VBUS sensor continues to detect VBUS as active after
disconnection. We need to poll the PHY's VBUS wakeup status until it's
deasserted before suspending PHY in order to fix this minor trouble.

Fixes: 35192007d2 ("usb: phy: tegra: Support waking up from a low power mode")
Reported-by: Maxim Schwalm <maxim.schwalm@gmail.com> # Asus TF700T
Tested-by: Maxim Schwalm <maxim.schwalm@gmail.com> # Asus TF700T
Reviewed-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210613145936.9902-1-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-15 15:36:23 +02:00
Grzegorz Jaszczyk a8534cb092 usb: phy: introduce usb_phy device type with its own uevent handler
The USB charger type and status was already propagated to userspace
through kobject_uevent_env during charger notify work. Nevertheless the
uevent could be lost e.g. because it could be fired at an early kernel
boot stage, way before udev daemon or any other user-space app was able
to catch it. Registering uevent hook for introduced usb_phy_dev_type
will allow to query sysfs 'uevent' file to restore that information at
any time.

Reviewed-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Link: https://lore.kernel.org/r/20210531122222.453628-1-grzegorz.jaszczyk@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-03 13:55:00 +02:00
Andy Shevchenko ca82c06788 usb: phy: isp1301: Deduplicate of_find_i2c_device_by_node()
The driver is using open-coded variant of of_find_i2c_device_by_node().
Replace it by the actual call to the above mentioned API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210521145243.87911-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-24 15:27:17 +02:00
Wei Ming Chen c34030129a usb: phy: Use fallthrough pseudo-keyword
Replace /* FALLTHROUGH */ comment with pseudo-keyword macro fallthrough[1]

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Wei Ming Chen <jj251510319013@gmail.com>
Link: https://lore.kernel.org/r/20210505141936.4343-1-jj251510319013@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-10 11:16:11 +02:00
Fabio Estevam 2e559638f7 usb: phy: phy-mxs-usb: Use of_device_get_match_data()
The retrieval of driver data via of_device_get_match_data() can make
the code simpler.

Use of_device_get_match_data() to simplify the code.

Acked-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210118152615.1644861-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-18 18:35:46 +01:00
Dmitry Osipenko 35192007d2 usb: phy: tegra: Support waking up from a low power mode
Support programming of waking up from a low power mode by implementing the
generic set_wakeup() callback of the USB PHY API.

Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Ion Agorria <ion@agorria.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201218120246.7759-3-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-13 11:26:34 +01:00
Dmitry Osipenko b100402e93 usb: phy: tegra: Add delay after power up
The PHY hardware needs the delay of 2ms after power up, otherwise initial
interrupt may be lost if USB controller is accessed before PHY is settled
down. Previously this issue was masked by implicit delays, but now it pops
up after squashing the older ehci-tegra driver into the ChipIdea driver.

Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Ion Agorria <ion@agorria.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201218120246.7759-2-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-13 11:26:34 +01:00
Linus Torvalds 2911ed9f47 Char / Misc driver updates for 5.11-rc1
Here is the big char/misc driver update for 5.11-rc1.
 
 Continuing the tradition of previous -rc1 pulls, there seems to be more
 and more tiny driver subsystems flowing through this tree.
 
 Lots of different things, all of which have been in linux-next for a
 while with no reported issues:
 	- extcon driver updates
 	- habannalab driver updates
 	- mei driver updates
 	- uio driver updates
 	- binder fixes and features added
 	- soundwire driver updates
 	- mhi bus driver updates
 	- phy driver updates
 	- coresight driver updates
 	- fpga driver updates
 	- speakup driver updates
 	- slimbus driver updates
 	- various small char and misc driver updates
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the big char/misc driver update for 5.11-rc1.

  Continuing the tradition of previous -rc1 pulls, there seems to be
  more and more tiny driver subsystems flowing through this tree.

  Lots of different things, all of which have been in linux-next for a
  while with no reported issues:

   - extcon driver updates

   - habannalab driver updates

   - mei driver updates

   - uio driver updates

   - binder fixes and features added

   - soundwire driver updates

   - mhi bus driver updates

   - phy driver updates

   - coresight driver updates

   - fpga driver updates

   - speakup driver updates

   - slimbus driver updates

   - various small char and misc driver updates"

* tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (305 commits)
  extcon: max77693: Fix modalias string
  extcon: fsa9480: Support TI TSU6111 variant
  extcon: fsa9480: Rewrite bindings in YAML and extend
  dt-bindings: extcon: add binding for TUSB320
  extcon: Add driver for TI TUSB320
  slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
  siox: Make remove callback return void
  siox: Use bus_type functions for probe, remove and shutdown
  spmi: Add driver shutdown support
  spmi: fix some coding style issues at the spmi core
  spmi: get rid of a warning when built with W=1
  uio: uio_hv_generic: use devm_kzalloc() for private data alloc
  uio: uio_fsl_elbc_gpcm: use device-managed allocators
  uio: uio_aec: use devm_kzalloc() for uio_info object
  uio: uio_cif: use devm_kzalloc() for uio_info object
  uio: uio_netx: use devm_kzalloc() for or uio_info object
  uio: uio_mf624: use devm_kzalloc() for uio_info object
  uio: uio_sercos3: use device-managed functions for simple allocs
  uio: uio_dmem_genirq: finalize conversion of probe to devm_ handlers
  uio: uio_dmem_genirq: convert simple allocations to device-managed
  ...
2020-12-15 14:10:09 -08:00
Zheng Yongjun a256e24021 usb: phy: convert comma to semicolon
Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201211085428.2871-1-zhengyongjun3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-11 16:51:20 +01:00
Colin Ian King 44ef9b2cd9 usb: phy: Fix spelling mistake in Kconfig help text
There is a spelling mistake in the Kconfig help text. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201126223704.13273-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 15:23:47 +01:00
周琰杰 (Zhou Yanjie) 85e6225f40 USB: PHY: JZ4770: Remove unnecessary function calls.
Remove unnecessary "of_match_ptr()", because Ingenic SoCs all
depend on Device Tree.

Suggested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20201116141906.11758-2-zhouyanjie@wanyeetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-12-05 13:39:30 +05:30
Linus Walleij f3ef38160e usb: isp1301-omap: Convert to use GPIO descriptors
This modernized the ISP1301 a bit by switching it to provide
a GPIO descriptor from the H2 board if used.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201123102346.48284-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:15:31 +01:00
Chunfeng Yun f158afecff usb: phy: phy-mv-usb: convert to readl_poll_timeout_atomic()
Use readl_poll_timeout_atomic() to simplify code

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1600668815-12135-9-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-25 16:30:06 +02:00
Chunfeng Yun a3e20fbd90 usb: phy-ulpi-viewport: convert to readl_poll_timeout_atomic()
Use readl_poll_timeout_atomic() to simplify code

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1600668815-12135-8-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-25 16:30:05 +02:00
Randy Dunlap f5f875b561 usb: phy: phy-ab8500-usb: fix spello of "function"
Fix typo/spello of "function".

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Jiri Kosina <trivial@kernel.org>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/1be7e71f-6b79-290a-f38e-b51ccaf85e8e@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-14 16:50:48 +02:00
周琰杰 (Zhou Yanjie) 41dd70b368 USB: PHY: JZ4770: Fix static checker warning.
The commit 2a6c0b82e6 ("USB: PHY: JZ4770: Add support for new
Ingenic SoCs.") introduced the initialization function for different
chips, but left the relevant code involved in the resetting process
in the original function, resulting in uninitialized variable calls.

Fixes: 2a6c0b82e6 ("USB: PHY: JZ4770: Add support for new Ingenic SoCs.").
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Link: https://lore.kernel.org/r/20200825081654.18186-2-zhouyanjie@wanyeetech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-25 16:02:34 +02:00
Chunfeng Yun 6ce7b97cfa usb: phy: am335x: convert to devm_platform_ioremap_resource_byname
Use devm_platform_ioremap_resource_byname() to simplify code

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1595404275-8449-2-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-29 16:49:37 +02:00
周琰杰 (Zhou Yanjie) f7e764cba2 USB: PHY: JZ4770: Reformat the code to align it.
Reformat the code (add one level of indentation before the values),
to align the code in the macro definition section.

Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com>
Co-developed-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>
Signed-off-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:14 +03:00
周琰杰 (Zhou Yanjie) 2a6c0b82e6 USB: PHY: JZ4770: Add support for new Ingenic SoCs.
Add support for probing the phy-jz4770 driver on the JZ4780 SoC,
the X1000 SoC and the X1830 SoC from Ingenic.

Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com>
Co-developed-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>
Signed-off-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:14 +03:00
周琰杰 (Zhou Yanjie) 6e5478aeb3 USB: PHY: JZ4770: Unify code style and simplify code.
1.Modify the macro definition to unify "#define USBPCR_XXXX n"
  into the "#define USBPCR_XXXX (n << USBPCR_XXXX_LSB)" style,
  so as to unify the code style in the "jz4770_phy_init()" and
  simplify the code.
2.Remove unused macro definitions to simplify the code.

Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com>
Suggested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:13 +03:00
Alexander A. Klimov 36774c5ac8 usb: phy: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200710191842.32561-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:51 +02:00
Gustavo A. R. Silva 4e71e07943 usb: phy: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707200040.GA4525@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:17 +02:00
Greg Kroah-Hartman 8c4a09cb1b USB: phy: fsl-usb: remove character device usage
No idea why this driver is using a char device node, statically
allocated, with no dynamic allocation or hook up with devtmpfs, along
with a reserverd major number, for "special" operations, not all of
which ever were implemented.

So just rip it out, as no one must be using it because no modern system
will ever actually create the /dev/ node it needs.

Cc: Felipe Balbi <balbi@kernel.org>
Reviewed-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200702072914.1072878-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-03 10:18:41 +02:00
Greg Kroah-Hartman cc72a2ca1f USB: phy: fsl-usb: remove sysfs abuse
This file has a HUGE debugging sysfs file that spews out a lot of
information all at once, which violates the one-value-per-file rule for
sysfs.  If this is really needed, it should go into debugfs, but given
the age of this driver, I strongly doubt anyone is using it anymore.

So just remove the file entirely, it was never documented, so obviously,
no one actually needed it :)

Cc: Felipe Balbi <balbi@kernel.org>
Reviewed-by: Ran Wang <ran.wang_1@nxp.com>
Link: https://lore.kernel.org/r/20200702072914.1072878-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-03 10:18:41 +02:00
Lee Jones 529427b928 usb: phy: phy: Fix-up a whole bunch of formatting issues
Kerneldoc expects arg descriptions to be in the format '@.*: '.  If either
the '@' or the ':' is omitted then kerneldoc complains that the description
is missing.  Add the missing ':'s here.

Also provide a new description for 'event'.

Fixes the following kernel build W=1 warnings:

 drivers/usb/phy/phy.c:106: warning: Function parameter or member 'work' not described in 'usb_phy_notify_charger_work'
 drivers/usb/phy/phy.c:172: warning: Function parameter or member 'nb' not described in 'usb_phy_get_charger_type'
 drivers/usb/phy/phy.c:172: warning: Function parameter or member 'state' not described in 'usb_phy_get_charger_type'
 drivers/usb/phy/phy.c:172: warning: Function parameter or member 'data' not described in 'usb_phy_get_charger_type'
 drivers/usb/phy/phy.c:194: warning: Function parameter or member 'usb_phy' not described in 'usb_phy_set_charger_current'
 drivers/usb/phy/phy.c:194: warning: Function parameter or member 'mA' not described in 'usb_phy_set_charger_current'
 drivers/usb/phy/phy.c:244: warning: Function parameter or member 'usb_phy' not described in 'usb_phy_get_charger_current'
 drivers/usb/phy/phy.c:244: warning: Function parameter or member 'min' not described in 'usb_phy_get_charger_current'
 drivers/usb/phy/phy.c:244: warning: Function parameter or member 'max' not described in 'usb_phy_get_charger_current'
 drivers/usb/phy/phy.c:281: warning: Function parameter or member 'usb_phy' not described in 'usb_phy_set_charger_state'
 drivers/usb/phy/phy.c:281: warning: Function parameter or member 'state' not described in 'usb_phy_set_charger_state'
 drivers/usb/phy/phy.c:427: warning: Function parameter or member 'dev' not described in 'devm_usb_get_phy'
 drivers/usb/phy/phy.c:427: warning: Function parameter or member 'type' not described in 'devm_usb_get_phy'
 drivers/usb/phy/phy.c:456: warning: Function parameter or member 'type' not described in 'usb_get_phy'
 drivers/usb/phy/phy.c:500: warning: Function parameter or member 'dev' not described in 'devm_usb_get_phy_by_node'
 drivers/usb/phy/phy.c:500: warning: Function parameter or member 'node' not described in 'devm_usb_get_phy_by_node'
 drivers/usb/phy/phy.c:500: warning: Function parameter or member 'nb' not described in 'devm_usb_get_phy_by_node'
 drivers/usb/phy/phy.c:558: warning: Function parameter or member 'dev' not described in 'devm_usb_get_phy_by_phandle'
 drivers/usb/phy/phy.c:558: warning: Function parameter or member 'phandle' not described in 'devm_usb_get_phy_by_phandle'
 drivers/usb/phy/phy.c:558: warning: Function parameter or member 'index' not described in 'devm_usb_get_phy_by_phandle'
 drivers/usb/phy/phy.c:590: warning: Function parameter or member 'dev' not described in 'devm_usb_put_phy'
 drivers/usb/phy/phy.c:590: warning: Function parameter or member 'phy' not described in 'devm_usb_put_phy'
 drivers/usb/phy/phy.c:627: warning: Function parameter or member 'type' not described in 'usb_add_phy'
 drivers/usb/phy/phy.c:721: warning: Function parameter or member 'event' not described in 'usb_phy_set_event'

Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200702144625.2533530-2-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-03 09:34:10 +02:00
Tang Bin d410912ef6 usb: phy: tegra: Fix unnecessary check in tegra_usb_phy_probe()
In the function tegra_usb_phy_probe(), if usb_add_phy_dev() failed,
the return value will be given to err, and if usb_add_phy_dev() succeed,
the return value will be zero. Thus it is unnecessary to repeated check
here.

Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-06-24 09:43:16 +03:00
Greg Kroah-Hartman 48a789079a Merge 5.7-rc6 into usb-next
We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-18 07:55:55 +02:00
Christophe JAILLET f058764d19 usb: phy: twl6030-usb: Fix a resource leak in an error handling path in 'twl6030_usb_probe()'
A call to 'regulator_get()' is hidden in 'twl6030_usb_ldo_init()'. A
corresponding put must be performed in the error handling path, as
already done in the remove function.

While at it, also move a 'free_irq()' call in the error handling path in
order to be consistent.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Nishad Kamdar 361ff6c10f USB: phy: Use the correct style for SPDX License Identifier
This patch corrects the SPDX License Identifier style in
header files related to Physical Layer USB driver configuration.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used).

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Link: https://lore.kernel.org/r/20200419123559.GA4505@nishad
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 15:28:14 +02:00
Christophe JAILLET ab455450fe usb: phy: jz4770: Add a missing '\n' in a log message
Message logged by 'dev_xxx()' or 'pr_xxx()' should end with a '\n'.

Fixes: 541368b46b ("usb: phy: Add driver for the Ingenic JZ4770 USB transceiver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20200411063811.6767-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-16 14:32:48 +02:00
Paul Cercueil 541368b46b usb: phy: Add driver for the Ingenic JZ4770 USB transceiver
Add a driver to support the USB PHY found in the JZ4770 SoC from
Ingenic.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200229161820.17824-2-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 09:53:08 +01:00
Krzysztof Kozlowski 9cb9322a26 usb: phy: tegra: Include proper GPIO consumer header to fix compile testing
The driver uses only GPIO Descriptor Consumer Interface so include
proper header.  This fixes compile test failures (e.g. on i386):

    drivers/usb/phy/phy-tegra-usb.c: In function ‘ulpi_phy_power_on’:
    drivers/usb/phy/phy-tegra-usb.c:695:2: error:
        implicit declaration of function ‘gpiod_set_value_cansleep’ [-Werror=implicit-function-declaration]
    drivers/usb/phy/phy-tegra-usb.c: In function ‘tegra_usb_phy_probe’:
    drivers/usb/phy/phy-tegra-usb.c:1167:11: error:
        implicit declaration of function ‘devm_gpiod_get_from_of_node’ [-Werror=implicit-function-declaration]

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/1583234960-24909-1-git-send-email-krzk@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-04 10:51:21 +01:00
Dmitry Osipenko a4a601948f usb: phy: tegra: Add clarifying comments about the shared registers
Tools like Coccinelle may erroneously recommend to use the
devm_platform_ioremap_resource() API for the registers mapping because
these tools are not aware about the implementation details of the driver.
Let's add a clarifying comments to the code, which should help to stop
future attempts to break the driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200202224259.29187-1-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-10 11:12:15 -08:00
Peter Chen 3bdcfe6c1d usb: phy: show USB charger type for user
Current USB charger framework only shows charger state for user, but the
user may also need charger type for further use, add support for it.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/1579145333-1657-1-git-send-email-peter.chen@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-24 09:41:27 +01:00
Linus Walleij fdabc466f3 usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors
Instead of using the legacy GPIO API and keeping track on
polarity inversion semantics in the driver, switch to use
GPIO descriptors for this driver and change all consumers
in the process.

This makes it possible to retire platform data completely:
the only remaining platform data member was "wakeup" which
was intended to make the vbus interrupt wakeup capable,
but was not set by any users and thus remained unused. VBUS
was not waking any devices up. Leave a comment about it so
later developers using the platform can consider setting it
to always enabled so plugging in USB wakes up the platform.

Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Sylwester Nawrocki <snawrocki@kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200123155013.93249-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 19:20:57 +01:00
Linus Walleij b267ddf6a5 usb: phy-generic: Delete unused platform data
The last user of the phy generic platform data was
deleted in commit 1e041b6f31
("usb: dwc3: exynos: Remove dead code"). So get rid of
the platform data, which rids us of another consumer of
the legacy GPIO API at the same time. Make sure we
only inlcude <linux/gpio/consumer.h> which is all we use.

Alter the usb_phy_gen_create_phy() function prototype to
not pass any platform data as this is just hardcoded to
NULL at all locations calling it in the kernel.

Move the devm_gpiod_get* calls out of the if (of_node)
parenthesis, as these calls are generic and do not depend
on device tree, they are used by any hardware description.

Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-15 10:39:20 +01:00
Dmitry Osipenko f1f0c75167 usb: phy: tegra: Keep CPU interrupts enabled
There is no good reason for disabling of CPU interrupts in order to
protect the utmip_pad_count modification.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106013416.9604-17-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 16:21:58 +01:00
Dmitry Osipenko 92bd2ef26c usb: phy: tegra: Move utmip_pad_count checking under lock
It's unlikely that two drivers could manage PHY's state simultaneously in
practice, nevertheless the utmip_pad_count checking should be under lock,
for consistency.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106013416.9604-16-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 16:21:58 +01:00
Dmitry Osipenko aecc5af3ec usb: phy: tegra: Disable VBUS regulator on tegra_usb_phy_init failure
VBUS regulator should be turned off in a case of error.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106013416.9604-15-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 16:21:58 +01:00
Dmitry Osipenko 06e60e5038 usb: phy: tegra: Use device-tree notion of reset-GPIO's active-state
It is much more intuitive if reset is treated as asserted when GPIO value
is set to 1. All NVIDIA Tegra device-trees are properly specifying active
state of the reset-GPIO since 2013, let's clean up that part of the code.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106013416.9604-14-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 16:21:58 +01:00