21 May, 2019

1 commit

• 1ccea77e2   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 ... Browse Code »

  Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not see http www gnu org licenses

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details [based]
  [from] [clk] [highbank] [c] you should have received a copy of the
  gnu general public license along with this program if not see http
  www gnu org licenses

  extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

  has been chosen to replace the boilerplate/reference in 355 file(s).

  Signed-off-by: Thomas Gleixner
  Reviewed-by: Kate Stewart
  Reviewed-by: Jilayne Lovejoy
  Reviewed-by: Steve Winslow
  Reviewed-by: Allison Randal
  Cc: linux-spdx@vger.kernel.org
  Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de
  Signed-off-by: Greg Kroah-Hartman

  Thomas Gleixner

  2019-05-21 17:28:45 +0800  

01 Nov, 2017

1 commit

• 2305a18ba   hwmon: (xgene) Minor clean up of ifdef and acpi_match_table reference ... Browse Code »

  This patch removes the un-necessary ifdef CONFIG_ACPI and directly
  uses the acpi_match_table from the driver pdev.

  Signed-off-by: Hoan Tran
  [groeck: Dropped unnecessary initialization]
  Signed-off-by: Guenter Roeck

  hotran

  2017-11-01 21:14:52 +0800  

30 Oct, 2017

1 commit

• 749d782d8   hwmon: (xgene) Support hwmon v2 ... Browse Code »

  This patch supports xgene-hwmon v2 which uses the non-cachable memory
  as the PCC shared memory.

  Signed-off-by: Hoan Tran
  Signed-off-by: Guenter Roeck

  hotran

  2017-10-30 09:36:03 +0800  

01 Oct, 2017

1 commit

• 74007ae63   hwmon: (xgene) Fix up error handling path mixup in 'xgene_hwmon_probe()' ... Browse Code »

  Commit 2ca492e22cb7 has moved the call to 'kfifo_alloc()' from after the
  main 'if' statement to before it.
  But it has not updated the error handling paths accordingly.

  Fix all that:
  - if 'kfifo_alloc()' fails we can return directly
  - direct returns after 'kfifo_alloc()' must now go to 'out_mbox_free'
  - 'goto out_mbox_free' must be replaced by 'goto out', otherwise the
  '[pcc_]mbox_free_channel()' call will be missed.

  Fixes: 2ca492e22cb7 ("hwmon: (xgene) Fix crash when alarm occurs before driver probe")
  Signed-off-by: Christophe JAILLET
  Signed-off-by: Guenter Roeck

  Christophe Jaillet

  2017-10-01 23:46:54 +0800  

10 Sep, 2016

1 commit

• c7cefce03   hwmon: (xgene) access mailbox as RAM ... Browse Code »

  The newly added hwmon driver fails to build in an allmodconfig
  kernel:

  ERROR: "memblock_is_memory" [drivers/hwmon/xgene-hwmon.ko] undefined!

  According to comments in the code, the mailbox is a shared memory region,
  not a set of MMIO registers, so we should use memremap() for mapping it
  instead of ioremap or acpi_os_ioremap, and pointer dereferences instead
  of readl/writel.

  The driver already uses plain kernel pointers, so it's a bit unusual
  to work with functions that operate on __iomem pointers, and this
  fixes that part too.

  I'm using READ_ONCE/WRITE_ONCE here to keep the existing behavior
  regarding the ordering of the accesses from the CPU, but note that
  there are no barriers (also unchanged from before).

  I'm also keeping the endianness behavior, though I'm unsure whether
  the message data was supposed to be in LE32 format in the first
  place, it's possible this was meant to be interpreted as a byte
  stream instead.

  Signed-off-by: Arnd Bergmann
  Acked-by: Hoan Tran
  Tested-by: Hoan Tran
  Signed-off-by: Guenter Roeck

  Arnd Bergmann

  2016-09-10 05:54:53 +0800  

09 Sep, 2016

2 commits

• 2ca492e22   hwmon: (xgene) Fix crash when alarm occurs before driver probe ... Browse Code »

  The system crashes during probing xgene-hwmon driver when temperature
  alarm interrupt occurs before.
  It's because
  - xgene_hwmon_probe() requests mailbox channel which also enables
  the mailbox interrupt.
  - As temperature alarm interrupt is pending, ISR runs and crashes when
  accesses into invalid resourse as unmapped PCC shared memory.

  This patch fixes this issue by saving this alarm message and scheduling a
  bottom handler after xgene_hwmon_probe() finish.

  Signed-off-by: Hoan Tran
  Reported-by: Itaru Kitayama
  Signed-off-by: Guenter Roeck

  hotran

  2016-09-09 12:34:17 +0800  
• ed42cfa88   hwmon: Add xgene hwmon driver ... Browse Code »

  This patch adds hardware temperature and power reading support for
  APM X-Gene SoC using the mailbox communication interface.

  Signed-off-by: Hoan Tran
  Reviewed-by: Guenter Roeck
  Signed-off-by: Guenter Roeck

  hotran

  2016-09-09 12:34:16 +0800