GPIO fixes for the V4.6 series:

Core fixes:
 - Defer GPIO device setup until after gpiolib is initialized.
   It turns out that a few very tightly integrated GPIO platform
   drivers initialize so early (befor core_initcall()) so that
   the gpiolib isn't even initialized itself. That limits what
   the library can do, and we cannot reference uninitialized
   fields until later. Defer some of the initialization until
   right after the gpiolib is initialized in these (rare) cases.
 - As a consequence: do not use devm_* resources when allocating
   the states in the initial set-up of the gpiochip.
 
 Driver fixes:
 - In ACPI retrieveal: ignore GpioInt when looking for output
   GPIOs.
 - Fix legacy builds on the PXA without a backing pin controller.
 - Use correct datatype on pca953x register writes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJXCVYaAAoJEEEQszewGV1z/MEQALfOdb+7WO/45qEtZCMpU2ih
 LOm60aiIdvVggsibeiGlHRbIF97P9z9GVD5nI3NJ7QPVDgKmqhL9ma+jAxxdUnpt
 AOs3Yd/sdThocfb9UsqHkPxVC/vge7TEU9EUDnLSx5UMaHO6tsBrUB06y3mDM01f
 X1nLtQweuEMYOutIVF9VaOx6DeFbVV4RqpxEHPbzPf4oAJrqreWqduPzxdYbdphs
 +hsm4sCodsjANiNtWjZpdEUFnw+MFRjOS234jKxMiC3xIdp4pO1NlqLxWTcK3N9Y
 WdxiAdrKEPq/5IUlt4R0shOL7e0o60nIJIlczxrAp4Z6jCKw+WYGIB/iIfh0rLq+
 /M4Awgrn3rUAs5jcJ4n7dm9QdCMd0XXw8+maLpYkYXa7rKHrUDyIC55L/DTSuoIY
 XwfdKd0Eyapa+iNhFmxQ6EWqH3JZCOv1IHQ65BbVXGzef2Voy6exCAKScF9vM7bV
 V2ydyrYOt++6stdS2KCbTgipLAeInXqXk0Xag5uPw0zGeJgYfhdYW5+2xfYp2PWD
 v9Z6VNkrF8u9AxGS3tq8Z/RMBR2dCyL2nFUi+TKx0cu3zbjGOEPOHfV45Tid59Jd
 YroHLBpRIB77srsKHcC3ZBtKbtt4idyzbYJHTni7XBT3F7pM/xUV37R1ZpWPrYAS
 JA/fhOSAuy7YnaV1CQFL
 =X4YD
 -----END PGP SIGNATURE-----

Merge tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Here is a set of four GPIO fixes.  The two fixes to the core are
  serious as they are regressing minor architectures.

  Core fixes:

   - Defer GPIO device setup until after gpiolib is initialized.

     It turns out that a few very tightly integrated GPIO platform
     drivers initialize so early (befor core_initcall()) so that the
     gpiolib isn't even initialized itself.  That limits what the
     library can do, and we cannot reference uninitialized fields until
     later.

     Defer some of the initialization until right after the gpiolib is
     initialized in these (rare) cases.

   - As a consequence: do not use devm_* resources when allocating the
     states in the initial set-up of the gpiochip.

  Driver fixes:

   - In ACPI retrieveal: ignore GpioInt when looking for output GPIOs.

   - Fix legacy builds on the PXA without a backing pin controller.

   - Use correct datatype on pca953x register writes"

* tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: pca953x: Use correct u16 value for register word write
  gpiolib: Defer gpio device setup until after gpiolib initialization
  gpiolib: Do not use devm functions when registering gpio chip
  gpio: pxa: fix legacy non pinctrl aware builds
  gpio / ACPI: ignore GpioInt() GPIOs when requesting GPIO_OUT_*
This commit is contained in:
Linus Torvalds 2016-04-09 13:28:50 -07:00
commit 289b7bfd48
3 changed files with 95 additions and 45 deletions