AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

GPIO fixes for v4.8:

Browse Source 
This fixes a Kconfig issue with UM: when I made GPIOLIB
 available to all archs, that included UM, but the OF part
 of GPIOLIB requires HAS_IOMEM, so we add HAS_IOMEM as a
 dependency to OF_GPIO.
 
 This in turn exposed the fact that a few GPIO drivers were
 implicitly assuming OF_GPIO as their dependency but instead
 depended on OF alone (the typical problem being a pointer
 inside gpio_chip not existing unless OF_GPIO is selected)
 and then UM would fail to compile with these drivers
 instead. Then I lost patience and made any GPIO driver
 depending on just OF depend on OF_GPIO instead, that is
 certainly what they meant and the only thing that makes
 sense anyway. GPIO with just OF but !OF_GPIO does not make
 sense.
 
 Also a fix for the max730x driver data pointer, and a minor
 comment fix for the GPIO tools.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJXurpEAAoJEEEQszewGV1zOEgP/2I4hI8eojOeMC7U89EWl3HG
 0sa3NGw8c+Vrdh37NDZsia24mQs2ntixFFW/sHYSkTJcTXSDD+QeN0IilnRKOmvw
 XRIJakdZy9+903crZ8GP2SU0juSNjUyVf7eq83M4DEVeu/lmUOgrlc12CqR7eUxR
 NnJdx8l8H7LZQXJO+F64SLFmc2P+wmWSWZtYHP4Jt3fwlEBRbHqcSB70P67IIOdM
 LvhVB4TcOoYwALzyqY2wrQtfQ37wmfUYTuT7Mnw5PHPk7FhktwrObHdMdENusHCn
 0BanmpCGqCZ0z9vWisaVWd+j8k1M3X0ObsTfyGmO+YVmYxdneNCjZdaFvH3LqCBL
 k6kcKFKfIu9sl3qFZr/3jHpN4QgZeLhdu3P3gllNtiLcPba7d2gDprjGiCCMtw6c
 5nYmfN1bTqWB7a2wlRZLMUE57lvsgLJtJ2dNx6HwcUyBLY7YDB5IVYh40fRwpEvH
 5gs6NuBDEJOGbEAYZ1lvo9LfRlogHUlYkkw+/G2FKOUCscf4Os2qEaLkirCPAaP/
 q4tkZPWxjt27Hw0bvANCVG5wkAJfbsX12iQMd8KU9RKwAFw6Q2e2iPGzH3M5Tdaw
 T35uYiWrPA6S+gLBMuT5UhUfQ5o+sc2zFi3Qq3aak86GAQYwSYTaoWHN/7EbpDZ/
 cssmpMpfL7hPYCzAo6sv
 =isIb
 -----END PGP SIGNATURE-----

Merge tag 'gpio-v4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Here are a few GPIO fixes for v4.8.

  I was expecting some fallout from the new chardev rework but nothing
  like that turned up att all.  Instead a Kconfig confusion that I think
  I have finally nailed, then some ordinary driver noise and trivia.

  This fixes a Kconfig issue with UM: when I made GPIOLIB available to
  all archs, that included UM, but the OF part of GPIOLIB requires
  HAS_IOMEM, so we add HAS_IOMEM as a dependency to OF_GPIO.

  This in turn exposed the fact that a few GPIO drivers were implicitly
  assuming OF_GPIO as their dependency but instead depended on OF alone
  (the typical problem being a pointer inside gpio_chip not existing
  unless OF_GPIO is selected) and then UM would fail to compile with
  these drivers instead.  Then I lost patience and made any GPIO driver
  depending on just OF depend on OF_GPIO instead, that is certainly what
  they meant and the only thing that makes sense anyway.  GPIO with just
  OF but !OF_GPIO does not make sense.

  Also a fix for the max730x driver data pointer, and a minor comment
  fix for the GPIO tools"

* tag 'gpio-v4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: make any OF dependent driver depend on OF_GPIO
  gpio: Fix OF build problem on UM
  gpio: max730x: set gpiochip data pointer before using it
  tools/gpio: fix gpio-event-mon header comment
This commit is contained in:
Linus Torvalds 2016-08-22 17:51:21 -05:00
commit 37c669b237
3 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/gpio/Kconfig
View File

@ -50,6 +50,7 @@ config GPIO_DEVRES
config OF_GPIO
def_bool y
depends on OF
depends on HAS_IOMEM
config GPIO_ACPI
def_bool y
@ -188,7 +189,7 @@ config GPIO_EP93XX
config GPIO_ETRAXFS
bool "Axis ETRAX FS General I/O"
depends on CRIS || COMPILE_TEST
depends on OF
depends on OF_GPIO
select GPIO_GENERIC
select GPIOLIB_IRQCHIP
help
@ -214,7 +215,7 @@ config GPIO_GENERIC_PLATFORM
config GPIO_GRGPIO
tristate "Aeroflex Gaisler GRGPIO support"
depends on OF
depends on OF_GPIO
select GPIO_GENERIC
select IRQ_DOMAIN
help
@ -312,7 +313,7 @@ config GPIO_MPC8XXX
config GPIO_MVEBU
def_bool y
depends on PLAT_ORION
depends on OF
depends on OF_GPIO
select GENERIC_IRQ_CHIP
config GPIO_MXC
@ -405,7 +406,7 @@ config GPIO_TEGRA
bool "NVIDIA Tegra GPIO support"
default ARCH_TEGRA
depends on ARCH_TEGRA || COMPILE_TEST
depends on OF
depends on OF_GPIO
help
Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
@ -1099,7 +1100,7 @@ menu "SPI GPIO expanders"
config GPIO_74X164
tristate "74x164 serial-in/parallel-out 8-bits shift register"
depends on OF
depends on OF_GPIO
help
Driver for 74x164 compatible serial-in/parallel-out 8-outputs
shift registers. This driver can be used to provide access

8
drivers/gpio/gpio-max730x.c
View File

@ -192,6 +192,10 @@ int __max730x_probe(struct max7301 *ts)
ts->chip.parent = dev;
ts->chip.owner = THIS_MODULE;
ret = gpiochip_add_data(&ts->chip, ts);
if (ret)
goto exit_destroy;
/*
* initialize pullups according to platform data and cache the
* register values for later use.
@ -213,10 +217,6 @@ int __max730x_probe(struct max7301 *ts)
}
}
ret = gpiochip_add_data(&ts->chip, ts);
if (ret)
goto exit_destroy;
return ret;
exit_destroy:

2
tools/gpio/gpio-event-mon.c
View File

@ -1,5 +1,5 @@
/*
* gpio-hammer - example swiss army knife to shake GPIO lines on a system
* gpio-event-mon - monitor GPIO line events from userspace
*
* Copyright (C) 2016 Linus Walleij
*