linux-toradex.git/drivers/gpio, branch v3.8.3 Linux kernel for Apalis and Colibri modules gpio: mvebu: Add clk support to prevent lockup 2013-03-14T18:26:36+00:00 Andrew Lunn andrew@lunn.ch 2013-02-03T10:34:26+00:00 d10d54ce540f6c68acc547442ba629abbd410dd6 commit de88747f514a4e0cca416a8871de2302f4f77790 upstream. The kirkwood SoC GPIO cores use the runit clock. Add code to clk_prepare_enable() runit, otherwise there is a danger of locking up the SoC by accessing the GPIO registers when runit clock is not ticking. Reported-by: Simon Baatz <gmbnomis@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Simon Baatz <gmbnomis@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit de88747f514a4e0cca416a8871de2302f4f77790 upstream.

The kirkwood SoC GPIO cores use the runit clock. Add code to
clk_prepare_enable() runit, otherwise there is a danger of locking up
the SoC by accessing the GPIO registers when runit clock is not
ticking.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
gpio: em: Use irq_domain_add_simple() to fix runtime error 2013-02-28T13:38:41+00:00 Magnus Damm damm@opensource.se 2013-02-12T15:56:13+00:00 3a7b023830c56a1cf1d4fa8bcda1a94afc00b6d7 commit c7886b18273b07042e25e8d3ba5c983837b84123 upstream. Adjust the gpio-em.c driver to reconsider the pdata->irq_base variable. Non-DT board code like for instance board-kzm9d.c needs to operate of a static IRQ range for platform devices. So this patch is updating the code to make use of the function irq_domain_add_simple() instead of irq_domain_add_linear(). Fixes a EMEV2 / KZM9D runtime error caused by the following commit: 7385500 gpio/em: convert to linear IRQ domain Signed-off-by: Magnus Damm <damm@opensource.se> Tested-by: Simon Horman <horms+renesas@verge.net.au> Reported-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit c7886b18273b07042e25e8d3ba5c983837b84123 upstream.

Adjust the gpio-em.c driver to reconsider the pdata->irq_base
variable. Non-DT board code like for instance board-kzm9d.c
needs to operate of a static IRQ range for platform devices.

So this patch is updating the code to make use of the function
irq_domain_add_simple() instead of irq_domain_add_linear().

Fixes a EMEV2 / KZM9D runtime error caused by the following commit:
7385500 gpio/em: convert to linear IRQ domain

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Reported-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
gpio: mvebu: Don't free chip label memory 2013-01-17T11:27:08+00:00 Thierry Reding thierry.reding@avionic-design.de 2013-01-14T10:53:20+00:00 11c0ceec073cb35a1bedfdece701351cfc1da5b7 The gpio_chip.label field is a const char * and assigned the value of a call to dev_name(). Memory obtained from dev_name() should not be freed by drivers. Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
The gpio_chip.label field is a const char * and assigned the value of a
call to dev_name(). Memory obtained from dev_name() should not be freed
by drivers.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
gpio: samsung: skip gpio lib registration for EXYNOS5440 2013-01-17T10:53:54+00:00 Kukjin Kim kgene.kim@samsung.com 2012-12-20T19:08:57+00:00 6948ce588bd765352df6f6b866f2151e26489ef1 Since exynos5440 can support pinctrl so skip the legacy gpiolib registration. If not, happens following. WARNING: at drivers/gpio/gpio-samsung.c:3102 samsung_gpiolib_init+0x68/0x8c() Unknown SoC in gpio-samsung, no GPIOs added Acked-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Since exynos5440 can support pinctrl so skip the legacy
gpiolib registration. If not, happens following.

WARNING: at drivers/gpio/gpio-samsung.c:3102 samsung_gpiolib_init+0x68/0x8c()
Unknown SoC in gpio-samsung, no GPIOs added

Acked-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
gpio: samsung: silent build warning for EXYNOS5 SoCs 2013-01-17T08:18:02+00:00 Kukjin Kim kgene.kim@samsung.com 2012-12-27T18:12:30+00:00 dcb9c3491acd63396f51dd1daf29851a5f92f632 This patch fixes following warning: drivers/gpio/gpio-samsung.c:450:32: warning: 'exynos_gpio_cfg' defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2450:33: warning: 'exynos5_gpios_1' defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2618:33: warning: 'exynos5_gpios_2' defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2679:33: warning: 'exynos5_gpios_3' defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2715:33: warning: 'exynos5_gpios_4' defined but not used [-Wunused-variable] Because current gpio-samsung is valid only on EXYNOS5250. Cc: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
This patch fixes following warning:

drivers/gpio/gpio-samsung.c:450:32: warning: 'exynos_gpio_cfg' defined but not used [-Wunused-variable]
drivers/gpio/gpio-samsung.c:2450:33: warning: 'exynos5_gpios_1' defined but not used [-Wunused-variable]
drivers/gpio/gpio-samsung.c:2618:33: warning: 'exynos5_gpios_2' defined but not used [-Wunused-variable]
drivers/gpio/gpio-samsung.c:2679:33: warning: 'exynos5_gpios_3' defined but not used [-Wunused-variable]
drivers/gpio/gpio-samsung.c:2715:33: warning: 'exynos5_gpios_4' defined but not used [-Wunused-variable]

Because current gpio-samsung is valid only on EXYNOS5250.

Cc: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
gpio: samsung: fix pinctrl condition for exynos and exynos5440 2013-01-17T08:17:59+00:00 Kukjin Kim kgene.kim@samsung.com 2012-12-27T18:11:10+00:00 e4a5da51daddf104183b42995411e2496832de1d Since EXYNOS5440 can select PINCTRL_EXYNOS5440 without PINCTRL_SAMSUNG, it should be fixed. In detail, PINCTRL_SAMSUNG is a kind of frame work for supporting pinctrl on most Samsung SoCs including S3C, S5P as well except EXYNOS5440 so PINCTRL_EXYNOS5440 has been implemented separated. Cc: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Since EXYNOS5440 can select PINCTRL_EXYNOS5440 without PINCTRL_SAMSUNG,
it should be fixed. In detail, PINCTRL_SAMSUNG is a kind of frame work
for supporting pinctrl on most Samsung SoCs including S3C, S5P as well
except EXYNOS5440 so PINCTRL_EXYNOS5440 has been implemented separated.

Cc: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
gpio: samsung: remove inclusion <mach/regs-clock.h> 2013-01-10T12:03:31+00:00 Kukjin Kim kgene.kim@samsung.com 2013-01-02T22:23:38+00:00 9b89cb8172f2ddd5a0aab74f20155036065956ac The <mach/regs-clock.h> is not needed for gpio-samsung. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
The <mach/regs-clock.h> is not needed for gpio-samsung.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Drivers: misc: remove __dev* attributes. 2013-01-03T23:57:16+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2012-12-21T23:14:44+00:00 0fe763c570ad2701c830b9e4e53c65ad89c11c32 CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG 2012-12-19T22:15:14+00:00 Gregory CLEMENT gregory.clement@free-electrons.com 2012-12-19T11:31:11+00:00 bc1008cf7d243cf6ad87b1e16d3dbbd8c8d6f35c When building without device tree support (for the mv78x00 SoCs for example), the build failed because of_irq_count is undeclared. However mvebu-gpio is not designed to build without device tree support. So make it depends on OF_CONFIG, remove the #ifdef OF_CONFIG line and the platform_device_id. Tested on RD-78x00-mASA, DB-78460-BP, DB-88F6710-BP-DDR3, DB-MV784MP-GP, Mirabox and OpenBlocks AX3. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 
When building without device tree support (for the mv78x00 SoCs for
example), the build failed because of_irq_count is undeclared. However
mvebu-gpio is not designed to build without device tree support. So
make it depends on OF_CONFIG, remove the #ifdef OF_CONFIG line and the
platform_device_id.

Tested on RD-78x00-mASA, DB-78460-BP, DB-88F6710-BP-DDR3,
DB-MV784MP-GP, Mirabox and OpenBlocks AX3.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
gpio/ich: Add missing spinlock init 2012-12-19T22:13:08+00:00 Jean Delvare khali@linux-fr.org 2012-12-16T20:31:40+00:00 d39a948fef2446cfac3749bbfcfdd536335c3764 As reported by CONFIG_DEBUG_SPINLOCK=y. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 
As reported by CONFIG_DEBUG_SPINLOCK=y.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>