linux.git/drivers/platform/surface, branch v5.16

platform/surface: aggregator_registry: Add initial support for Surface Pro 8

2021-10-28T09:21:17+00:00

Add preliminary support for the Surface Pro 8 to the Surface Aggregator
registry. This includes battery/charger status and platform profile
support.

In contrast to earlier Surface Pro generations, the keyboard cover is
now also connected via the Surface Aggregator Module (whereas it was
previously connected via USB or HID-over-I2C). To properly support the
HID devices of that cover, however, more changes regarding hot-removal
of Surface Aggregator client devices as well as a new device hub driver
are required. We will address those things in a follow-up series, so do
not add any HID device IDs just yet.

Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20211028012845.1887219-1-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

platform/surface: aggregator_registry: Add support for Surface Laptop Studio

2021-10-21T18:36:22+00:00

Add support for the Surface Laptop Studio.

In contrast to previous Surface Laptop models, this one has its HID
devices attached to target ID 1 (instead of 2). It also has a couple
more of them, including a new notifier for when the pen is stashed /
taken out of its place, a "Sys Control" device, and two other
unidentified HID devices with unknown usages.

Battery and performance profile interfaces remain the same.

Cc: stable@vger.kernel.org # 5.14+
Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20211021130904.862610-2-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

platform/surface: gpe: Add support for Surface Laptop Studio

2021-10-21T18:36:18+00:00

The new Surface Laptop Studio uses GPEs for lid events as well. Add an
entry for that so that the lid can be used to wake the device.

Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20211021111053.564133-1-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

surface: surface3_power: Drop redundant acpi_bus_get_device() call

2021-10-19T14:55:53+00:00

If the ACPI companion of a given device is not present, the result
of the ACPI_HANDLE() evaluation for it will be NULL, so calling
acpi_bus_get_device() on ACPI_HANDLE() result in order to validate
it is redundant.

Drop the redundant acpi_bus_get_device() call from mshw0011_notify()
along with a local variable related to it.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Maximilian Luz 
Link: https://lore.kernel.org/r/3160001.aeNJFYEL58@kreacher
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

surface: surface3-wmi: Use ACPI_COMPANION() directly

2021-10-19T14:55:43+00:00

The ACPI_HANDLE() macro is a wrapper arond the ACPI_COMPANION()
macro and the ACPI handle produced by the former comes from the
ACPI device object produced by the latter, so it is way more
straightforward to evaluate the latter directly instead of passing
the handle produced by the former to acpi_bus_get_device().

Modify s3_wmi_check_platform_device() accordingly (no intentional
functional impact).

Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Maximilian Luz 
Link: https://lore.kernel.org/r/12896717.uLZWGnKmhe@kreacher
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

Merge tag 'platform-drivers-x86-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2021-09-02T20:49:39+00:00

Pull x86 platform driver updates from Hans de Goede:
 "Highlights:

   - Move all the Intel drivers into their own subdir(s) (mostly Kate's
     work)

   - New meraki-mx100 platform driver

   - Asus WMI driver enhancements, including support for
     /sys/firmware/acpi/platform_profile

   - New BIOS SAR driver for Intel M.2 WWAM modems

   - Alder Lake support for the Intel PMC driver

   - A whole bunch of cleanups + fixes all over the place"

* tag 'platform-drivers-x86-v5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits)
  platform/x86: dell-smbios-wmi: Add missing kfree in error-exit from run_smbios_call
  platform/x86: dell-smbios-wmi: Avoid false-positive memcpy() warning
  platform/x86: ISST: use semi-colons instead of commas
  platform/x86: asus-wmi: Fix "unsigned 'retval' is never less than zero" smatch warning
  platform/x86: asus-wmi: Delete impossible condition
  platform/x86: hp_accel: Convert to be a platform driver
  platform/x86: hp_accel: Remove _INI method call
  platform/mellanox: mlxbf-pmc: fix kernel-doc notation
  platform/x86/intel: pmc/core: Add GBE Package C10 fix for Alder Lake PCH
  platform/x86/intel: pmc/core: Add Alder Lake low power mode support for pmc core
  platform/x86/intel: pmc/core: Add Latency Tolerance Reporting (LTR) support to Alder Lake
  platform/x86/intel: pmc/core: Add Alderlake support to pmc core driver
  platform/x86: intel-wmi-thunderbolt: Move to intel sub-directory
  platform/x86: intel-wmi-sbl-fw-update: Move to intel sub-directory
  platform/x86: intel-vbtn: Move to intel sub-directory
  platform/x86: intel_oaktrail: Move to intel sub-directory
  platform/x86: intel_int0002_vgpio: Move to intel sub-directory
  platform/x86: intel-hid: Move to intel sub-directory
  platform/x86: intel_atomisp2: Move to intel sub-directory
  platform/x86: intel_speed_select_if: Move to intel sub-directory
  ...

Merge tag 'tty-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2021-09-01T16:51:16+00:00

Pull tty / serial updates from Greg KH:
 "Here is the "big" set of tty/serial driver patches for 5.15-rc1

  Nothing major in here at all, just some driver updates and more
  cleanups on old tty apis and code that needed it that includes:

   - tty.h cleanup of things that didn't belong in it

   - other tty cleanups by Jiri

   - driver cleanups

   - rs485 support added to amba-pl011 driver

   - dts updates

   - stm32 serial driver updates

   - other minor fixes and driver updates

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

* tag 'tty-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (83 commits)
  tty: serial: uartlite: Use read_poll_timeout for a polling loop
  tty: serial: uartlite: Use constants in early_uartlite_putc
  tty: Fix data race between tiocsti() and flush_to_ldisc()
  serial: vt8500: Use of_device_get_match_data
  serial: tegra: Use of_device_get_match_data
  serial: 8250_ingenic: Use of_device_get_match_data
  tty: serial: linflexuart: Remove redundant check to simplify the code
  tty: serial: fsl_lpuart: do software reset for imx7ulp and imx8qxp
  tty: serial: fsl_lpuart: enable two stop bits for lpuart32
  tty: serial: fsl_lpuart: fix the wrong mapbase value
  mxser: use semi-colons instead of commas
  tty: moxa: use semi-colons instead of commas
  tty: serial: fsl_lpuart: check dma_tx_in_progress in tx dma callback
  tty: replace in_irq() with in_hardirq()
  serial: sh-sci: fix break handling for sysrq
  serial: stm32: use devm_platform_get_and_ioremap_resource()
  serial: stm32: use the defined variable to simplify code
  Revert "arm pl011 serial: support multi-irq request"
  tty: serial: samsung: Add Exynos850 SoC data
  tty: serial: samsung: Fix driver data macros style
  ...

platform/surface: aggregator: Use serdev_acpi_get_uart_resource() helper

2021-08-13T07:13:19+00:00

serdev provides a generic helper to get UART Serial Bus resources.
Use it instead of an open coded variant.

Reviewed-by: Maximilian Luz 
Acked-by: Hans de Goede 
Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210806111736.66591-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

platform/surface: aggregator: Use y instead of objs in Makefile

2021-08-12T07:26:28+00:00

The 'objs' is for user space tools, for the kernel modules
we should use 'y'.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20210803192524.67031-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede

platform/surface: surface3_power: Use i2c_acpi_get_i2c_resource() helper

2021-08-12T07:26:28+00:00

ACPI provides a generic helper to get I²C Serial Bus resources.
Use it instead of open coded variant.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20210803163252.60141-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede