linux-stable.git/drivers/platform, branch v5.6.8

platform/chrome: cros_ec: Query EC protocol version if EC transitions between RO/RW

2020-04-23T08:38:22+00:00

[ Upstream commit 42cd0ab476e2daffc23982c37822a78f9a53cdd5 ]

RO and RW of EC may have different EC protocol version. If EC transitions
between RO and RW, but AP does not reboot (this is true for fingerprint
microcontroller / cros_fp, but not true for main ec / cros_ec), the AP
still uses the protocol version queried before transition, which can
cause problems. In the case of fingerprint microcontroller, this causes
AP to send the wrong version of EC_CMD_GET_NEXT_EVENT to RO in the
interrupt handler, which in turn prevents RO to clear the interrupt
line to AP, in an infinite loop.

Once an EC_HOST_EVENT_INTERFACE_READY is received, we know that there
might have been a transition between RO and RW, so re-query the protocol.

Signed-off-by: Yicheng Li 
Tested-by: Marek Szyprowski 
Reviewed-by: Gwendal Grignou 
Signed-off-by: Enric Balletbo i Serra 
Signed-off-by: Sasha Levin

platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID

2020-04-23T08:38:12+00:00

[ Upstream commit d5764dc597467664a1a70ab66a2314a011aeccd4 ]

Tiger Lake's new unique ACPI device IDs for intel-hid driver is not
valid because of missing 'C' in the ID. Fix the ID by updating it.

After the update, the new ID should now look like
INT1051 --> INTC1051

Fixes: bdd11b654035 ("platform/x86: intel-hid: Add Tiger Lake ACPI device ID")
Suggested-by: Srinivas Pandruvada 
Signed-off-by: Gayatri Kammela 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Sasha Levin

platform/chrome: cros_ec_rpmsg: Fix race with host event

2020-04-21T07:08:00+00:00

commit f775ac78fcfc6bdc96bdda07029d11f2a5e84869 upstream.

Host event can be sent by remoteproc by any time, and
cros_ec_rpmsg_callback would be called after cros_ec_rpmsg_create_ept.
But the cros_ec_device is initialized after that, which cause host event
handler to use cros_ec_device that are not initialized properly yet.

Fix this by don't schedule host event handler before cros_ec_register
returns. Instead, remember that we have a pending host event, and
schedule host event handler after cros_ec_register.

Fixes: 71cddb7097e2 ("platform/chrome: cros_ec_rpmsg: Fix race with host command when probe failed.")
Signed-off-by: Pi-Hsun Shih 
Signed-off-by: Enric Balletbo i Serra 
Signed-off-by: Greg Kroah-Hartman

platform/x86: asus-wmi: Support laptops where the first battery is named BATT

2020-04-17T14:13:32+00:00

commit 6b3586d45bba14f6912f37488090c37a3710e7b4 upstream.

The WMI method to set the charge threshold does not provide a
way to specific a battery, so we assume it is the first/primary
battery (by checking if the name is BAT0).
On some newer ASUS laptops (Zenbook UM431DA) though, the
primary/first battery isn't named BAT0 but BATT, so we need
to support that case.

Fixes: 7973353e92ee ("platform/x86: asus-wmi: Refactor charge threshold to use the battery hooking API")
Cc: stable@vger.kernel.org
Signed-off-by: Kristian Klausen 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Greg Kroah-Hartman

platform/x86: intel_int0002_vgpio: Use acpi_register_wakeup_handler()

2020-04-13T11:17:58+00:00

commit 767191db8220db29f78c031f4d27375173c336d5 upstream.

The Power Management Events (PMEs) the INT0002 driver listens for get
signalled by the Power Management Controller (PMC) using the same IRQ
as used for the ACPI SCI.

Since commit fdde0ff8590b ("ACPI: PM: s2idle: Prevent spurious SCIs from
waking up the system") the SCI triggering, without there being a wakeup
cause recognized by the ACPI sleep code, will no longer wakeup the system.

This breaks PMEs / wakeups signalled to the INT0002 driver, the system
never leaves the s2idle_loop() now.

Use acpi_register_wakeup_handler() to register a function which checks
the GPE0a_STS register for a PME and trigger a wakeup when a PME has
been signalled.

Fixes: fdde0ff8590b ("ACPI: PM: s2idle: Prevent spurious SCIs from waking up the system")
Cc: 5.4+  # 5.4+
Signed-off-by: Hans de Goede 
Acked-by: Andy Shevchenko 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Greg Kroah-Hartman

platform/x86: pmc_atom: Add Lex 2I385SW to critclk_systems DMI table

2020-04-02T06:02:31+00:00

commit 95b31e35239e5e1689e3d965d692a313c71bd8ab upstream.

The Lex 2I385SW board has two Intel I211 ethernet controllers. Without
this patch, only the first port is usable. The second port fails to
start with the following message:

    igb: probe of 0000:02:00.0 failed with error -2

Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Tested-by: Georg Müller 
Signed-off-by: Georg Müller 
Reviewed-by: Hans de Goede 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Greg Kroah-Hartman

platform/chrome: wilco_ec: Include asm/unaligned instead of linux/ path

2020-02-11T08:10:36+00:00

It seems that we shouldn't try to include the include/linux/ path to
unaligned functions. Just include asm/unaligned.h instead so that we
don't run into compilation warnings like below.

   In file included from drivers/platform/chrome/wilco_ec/properties.c:8:0:
   include/linux/unaligned/le_memmove.h:7:19: error: redefinition of 'get_unaligned_le16'
    static inline u16 get_unaligned_le16(const void *p)
                      ^~~~~~~~~~~~~~~~~~
   In file included from arch/ia64/include/asm/unaligned.h:5:0,
                    from arch/ia64/include/asm/io.h:23,
                    from arch/ia64/include/asm/smp.h:21,
                    from include/linux/smp.h:68,
                    from include/linux/percpu.h:7,
                    from include/linux/arch_topology.h:9,
                    from include/linux/topology.h:30,
                    from include/linux/gfp.h:9,
                    from include/linux/xarray.h:14,
                    from include/linux/radix-tree.h:18,
                    from include/linux/idr.h:15,
                    from include/linux/kernfs.h:13,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/device.h:16,
                    from include/linux/platform_data/wilco-ec.h:11,
                    from drivers/platform/chrome/wilco_ec/properties.c:6:
   include/linux/unaligned/le_struct.h:7:19: note: previous definition of 'get_unaligned_le16' was here
    static inline u16 get_unaligned_le16(const void *p)
                      ^~~~~~~~~~~~~~~~~~
Reported-by: kbuild test robot 
Fixes: 60fb8a8e93ca ("platform/chrome: wilco_ec: Allow wilco to be compiled in COMPILE_TEST")
Signed-off-by: Stephen Boyd 
Signed-off-by: Enric Balletbo i Serra

Merge branch 'akpm' (patches from Andrew)

2020-02-04T07:24:48+00:00

Merge more updates from Andrew Morton:
 "The rest of MM and the rest of everything else: hotfixes, ipc, misc,
  procfs, lib, cleanups, arm"

* emailed patches from Andrew Morton : (67 commits)
  ARM: dma-api: fix max_pfn off-by-one error in __dma_supported()
  treewide: remove redundant IS_ERR() before error code check
  include/linux/cpumask.h: don't calculate length of the input string
  lib: new testcases for bitmap_parse{_user}
  lib: rework bitmap_parse()
  lib: make bitmap_parse_user a wrapper on bitmap_parse
  lib: add test for bitmap_parse()
  bitops: more BITS_TO_* macros
  lib/string: add strnchrnul()
  proc: convert everything to "struct proc_ops"
  proc: decouple proc from VFS with "struct proc_ops"
  asm-generic/tlb: provide MMU_GATHER_TABLE_FREE
  asm-generic/tlb: rename HAVE_MMU_GATHER_NO_GATHER
  asm-generic/tlb: rename HAVE_MMU_GATHER_PAGE_SIZE
  asm-generic/tlb: rename HAVE_RCU_TABLE_FREE
  asm-generic/tlb: add missing CONFIG symbol
  asm-gemeric/tlb: remove stray function declarations
  asm-generic/tlb: avoid potential double flush
  mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush
  powerpc/mmu_gather: enable RCU_TABLE_FREE even for !SMP case
  ...

Merge tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

2020-02-04T07:17:41+00:00

Pull chrome platform updates from Benson Leung:
 "CrOS EC:

   - Refactoring of some of cros_ec's headers:

     include/linux/mfd/cros_ec.h now removed, new cros_ec.h added to
     drivers/platform/chrome which contains shared operations of cros_ec
     transport drivers.

   - Response tracing in cros_ec_proto

  Wilco EC:

   - Fix unregistration order.

   - Fix keyboard backlight probing on systems without keyboard
     backlight

   - Minor cleanup (newlines in printks, COMPILE_TEST)

  Misc:

   - chromeos_laptop converted to use i2c_new_scanned_device instead of
     i2c_new_probed_device"

* tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec: Match implementation with headers
  platform/chrome: cros_ec: Drop unaligned.h include
  platform/chrome: wilco_ec: Allow wilco to be compiled in COMPILE_TEST
  platform/chrome: wilco_ec: Add newlines to printks
  platform/chrome: wilco_ec: Fix unregistration order
  cros_ec: treewide: Remove 'include/linux/mfd/cros_ec.h'
  platform/chrome: cros_ec_ishtp: Make init_lock static
  platform/chrome: chromeos_laptop: Convert to i2c_new_scanned_device
  platform/chrome: cros_ec_lpc: Use platform_get_irq_optional() for optional IRQs
  platform/chrome: cros_ec_proto: Add response tracing
  platform/chrome: cros_ec_trace: Match trace commands with EC commands

proc: convert everything to "struct proc_ops"

2020-02-04T03:05:26+00:00

The most notable change is DEFINE_SHOW_ATTRIBUTE macro split in
seq_file.h.

Conversion rule is:

	llseek		=> proc_lseek
	unlocked_ioctl	=> proc_ioctl

	xxx		=> proc_xxx

	delete ".owner = THIS_MODULE" line

[akpm@linux-foundation.org: fix drivers/isdn/capi/kcapi_proc.c]
[sfr@canb.auug.org.au: fix kernel/sched/psi.c]
  Link: http://lkml.kernel.org/r/20200122180545.36222f50@canb.auug.org.au
Link: http://lkml.kernel.org/r/20191225172546.GB13378@avx2
Signed-off-by: Alexey Dobriyan 
Signed-off-by: Stephen Rothwell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds