linux-stable.git/drivers/platform/chrome, branch linux-6.5.y

platform/chrome: kunit: initialize lock for fake ec_dev

2023-11-28T17:14:43+00:00

[ Upstream commit e410b4ade83d06a046f6e32b5085997502ba0559 ]

cros_ec_cmd_xfer() uses ec_dev->lock.  Initialize it.

Otherwise, dmesg shows the following:
> DEBUG_LOCKS_WARN_ON(lock->magic != lock)
> ...
> Call Trace:
>  ? __mutex_lock
>  ? __warn
>  ? __mutex_lock
>  ...
>  ? cros_ec_cmd_xfer

Reviewed-by: Guenter Roeck 
Link: https://lore.kernel.org/r/20231003080504.4011337-1-tzungbi@kernel.org
Signed-off-by: Tzung-Bi Shih 
Signed-off-by: Sasha Levin

platform/chrome: cros_ec_lpc: Separate host command and irq disable

2023-11-20T10:56:58+00:00

[ Upstream commit 47ea0ddb1f5604ba3496baa19110aec6a3151f2e ]

Both cros host command and irq disable were moved to suspend
prepare stage from late suspend recently. This is causing EC
to report MKBP event timeouts during suspend stress testing.
When the MKBP event timeouts happen during suspend, subsequent
wakeup of AP by EC using MKBP doesn't happen properly. Move the
irq disabling part back to late suspend stage which is a general
suggestion from the suspend kernel documentaiton to do irq
disable as late as possible.

Fixes: 4b9abbc132b8 ("platform/chrome: cros_ec_lpc: Move host command to prepare/complete")
Signed-off-by: Lalith Rajendran 
Link: https://lore.kernel.org/r/20231027160221.v4.1.I1725c3ed27eb7cd9836904e49e8bfa9fb0200a97@changeid
Signed-off-by: Tzung-Bi Shih 
Signed-off-by: Sasha Levin

platform/chrome: cros_ec_lpc: Remove EC panic shutdown timeout

2023-09-23T09:14:18+00:00

[ Upstream commit f2d4dced9a584612b25adb559c1350243d2bb544 ]

Remove the 1 second timeout applied to hw_protection_shutdown after an
EC panic. On some platforms this 1 second timeout is insufficient to
allow the filesystem to fully sync. Independently the EC will force a
full system reset after a short period. So this backup timeout is
unnecessary.

Signed-off-by: Rob Barnes 
Reviewed-by: Guenter Roeck 
Link: https://lore.kernel.org/r/20230802175847.1.Ie9fc53b6a1f4c6661c5376286a50e0cf51b3e961@changeid
Signed-off-by: Tzung-Bi Shih 
Signed-off-by: Sasha Levin

platform/chrome: chromeos_acpi: print hex string for ACPI_TYPE_BUFFER

2023-09-13T07:53:55+00:00

commit 0820debb7d489e9eb1f68b7bb69e6ae210699b3f upstream.

`element->buffer.pointer` should be binary blob.  `%s` doesn't work
perfect for them.

Print hex string for ACPI_TYPE_BUFFER.  Also update the documentation
to reflect this.

Fixes: 0a4cad9c11ad ("platform/chrome: Add ChromeOS ACPI device driver")
Cc: stable@vger.kernel.org
Reviewed-by: Guenter Roeck 
Link: https://lore.kernel.org/r/20230803011245.3773756-1-tzungbi@kernel.org
Signed-off-by: Tzung-Bi Shih 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'usb-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2023-07-03T20:23:10+00:00

Pull USB / Thunderbolt driver updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver updates for 6.5-rc1.

  Included in here are:

   - Lots of USB4/Thunderbolt additions and updates for new hardware
     types and fixes as people are starting to get access to the
     hardware in the wild

   - new gadget controller driver, cdns2, added

   - new typec drivers added

   - xhci driver updates

   - typec driver updates

   - usbip driver fixes

   - usb-serial driver updates and fixes

   - lots of smaller USB driver updates

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'usb-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (265 commits)
  usb: host: xhci-plat: Set XHCI_STATE_REMOVING before resuming XHCI HC
  usb: host: xhci: Do not re-initialize the XHCI HC if being removed
  usb: typec: nb7vpq904m: fix CONFIG_DRM dependency
  usbip: usbip_host: Replace strlcpy with strscpy
  usb: dwc3: gadget: Propagate core init errors to UDC during pullup
  USB: serial: option: add LARA-R6 01B PIDs
  usb: ulpi: Make container_of() no-op in to_ulpi_dev()
  usb: gadget: legacy: fix error return code in gfs_bind
  usb: typec: fsa4480: add support for Audio Accessory Mode
  usb: typec: fsa4480: rework mux & switch setup to handle more states
  usb: typec: ucsi: call typec_set_mode on non-altmode partner change
  USB: gadget: f_hid: make hidg_class a static const structure
  USB: gadget: f_printer: make usb_gadget_class a static const structure
  USB: mon: make mon_bin_class a static const structure
  USB: gadget: udc: core: make udc_class a static const structure
  USB: roles: make role_class a static const structure
  dt-bindings: usb: dwc3: Add interrupt-names property support for wakeup interrupt
  dt-bindings: usb: Add StarFive JH7110 USB controller
  dt-bindings: usb: dwc3: Add IPQ9574 compatible
  usb: cdns2: Fix spelling mistake in a trace message "Wakupe" -> "Wakeup"
  ...

platform/chrome: cros_ec_spi: Use %*ph for printing hexdump of a small buffer

2023-06-13T04:28:36+00:00

The kernel already has a helper to print a hexdump of a small
buffer via pointer extension. Use that instead of open coded
variant.

In long term it helps to kill pr_cont() or at least narrow down
its use.

Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20230612212336.4961-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Tzung-Bi Shih

usb: typec: mux: Remove alt mode parameters from the API

2023-05-29T14:17:52+00:00

The alt mode descriptor parameters are not used anymore.

Signed-off-by: Heikki Krogerus 
Reviewed-by: Bjorn Andersson 
Tested-by: Bjorn Andersson 
Acked-by: Prashant Malani 
Link: https://lore.kernel.org/r/20230526131434.46920-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

platform/chrome: Switch i2c drivers back to use .probe()

2023-05-29T00:37:29+00:00

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498b5 ("i2c: Switch .probe() to not take an id parameter")
convert back to (the new) .probe() to be able to eventually drop
.probe_new() from struct i2c_driver.

Signed-off-by: Uwe Kleine-König 
Reviewed-by: Guenter Roeck 
Signed-off-by: Tzung-Bi Shih 
Link: https://lore.kernel.org/r/20230526214703.2135137-1-u.kleine-koenig@pengutronix.de

platform/chrome: cros_ec_lpc: Move host command to prepare/complete

2023-05-22T01:54:36+00:00

Update cros_ec_lpc_pm_ops to call cros_ec_lpc_prepare() during PM
.prepare() and cros_ec_lpc_complete() during .complete(). This moves the
host command that the AP sends and allows the EC to log entry/exit of
AP's suspend/resume more accurately.

Reviewed-by: Raul E Rangel 
Signed-off-by: Tim Van Patten 
Signed-off-by: Tzung-Bi Shih 
Link: https://lore.kernel.org/r/20230515142552.1.I17cae37888be3a8683911991602f18e482e7a621@changeid

platform/chrome: cros_ec: Report EC panic as uevent

2023-05-15T03:55:41+00:00

Create a uevent when an EC panic is detected. This will allow udev rules
to trigger when a panic occurs. For example, a udev rule could be added to
capture an EC coredump. This approach avoids the need to stuff all the
processing into the driver.

Signed-off-by: Rob Barnes 
Reviewed-by: Prashant Malani 
Signed-off-by: Tzung-Bi Shih 
Link: https://lore.kernel.org/r/20230509232624.3120347-1-robbarnes@google.com