- 15 Nov, 2012 10 commits
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Axel Lin authored
Currently get_gpio_pingroup() may return NULL or ERR_PTR(-EINVAL) when no gpio_pingroup found. The caller in gpio_request_endisable() only checks if the return value is NULL. Return ERR_PTR(-EINVAL) for get_gpio_pingroup() causes problem and seems not necessary. Signed-off-by:
Axel Lin <axel.lin@ingics.com> Acked-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org>
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Axel Lin authored
Return -ENOMEM instead of 0 if irq_domain_add_linear fails. Signed-off-by:
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Axel Lin authored
Current code does not work if count > 1, fix it. Signed-off-by:
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Axel Lin authored
Current code sets "pin_reg = &info->pin_regs[i];" in each loop iteration, so in the case of no-match, pin_reg is not NULL. Signed-off-by:
Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by:
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Axel Lin authored
They are not referenced outside of this file, make them static. Signed-off-by:
Stephen Warren <swarren@nvidia.com> Signed-off-by:
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Patrice Chotard authored
The clkout group is split into groups clkout1 and clkout2 which allows pins cklkout1 and clkout2 to be muxed separately. Signed-off-by:
Patrice Chotard <patrice.chotard@stericsson.com> Signed-off-by:
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Patrice Chotard authored
The clkout group is split into groups clkout1 and clkout2 which allows pins cklkout1 and clkout2 to be muxed separately. Signed-off-by:
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Axel Lin authored
They are not used, remove them. Signed-off-by:
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Axel Lin authored
Use managed resources API to simplify the code. Also ensure we do request mem_region before ioremap. Signed-off-by:
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Axel Lin authored
Then we can remove "select PINMUX && PINCONF" from PINCTRL_TEGRA{20,30}. This simplifies the dependency. Signed-off-by:
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- 13 Nov, 2012 2 commits
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Axel Lin authored
Then we can remove "select PINMUX && PINCONF" from PINCTRL_IMX{23,28}. This simplifies the dependency. Signed-off-by:Shawn Guo <shawn.guo@linaro.org> Signed-off-by:
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Axel Lin authored
They are not referenced outside of this file, make them static. Signed-off-by:
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- 11 Nov, 2012 28 commits
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Axel Lin authored
Currently pinmux_enable_setting does not release all taken pins if ops->enable() returns error. This patch ensures all taken pins are released in any error paths. Signed-off-by:
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Axel Lin authored
Both ltq_pinctrl_dt_node_to_map() and ltq_pinctrl_dt_free_map() are not referenced outside of this file. Make them static. Signed-off-by:
John Crispin <blogic@openwrt.org> Signed-off-by:
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Axel Lin authored
Current code adds empty ltq_pmx_disable() because pinmux_check_ops() requires this callback to be defined. This is not required since commit 02b50ce4 "pinctrl: make pinmux disable function optional". Thus remove ltq_pmx_disable() function. Signed-off-by:
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Shiraz Hashim authored
Different SPEAr SoCs have different approach to configure pins as gpios. Some configure a group of gpios with single register bit and others have one bit per gpio pin. Only earlier one is implemented till now, this patch adds support for later one. Here we add callbacks to SoC specific code to configure gpios in gpio_request_enable(). That will do additional SoC specific configuration to enable gpio pins. We also implement this callback for SPEAr1340 in this patch. Signed-off-by:
Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by:
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Axel Lin authored
They are not referenced outside respective driver. Signed-off-by:
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Linus Walleij authored
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Linus Walleij authored
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Viresh Kumar authored
This patch adds plgpio nodes in SPEAr DT files. Signed-off-by:
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Viresh Kumar authored
Most of SPEAr SoCs, which support pinctrl, can configure & use pads as gpio. This patch gpio enable support for SPEAr pinctrl drivers. Signed-off-by:
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Linus Walleij authored
The <*/gpio.h> includes are updated again: now we need to account for the problem introduced by commit: 595679a8038584df7b9398bf34f61db3c038bfea "gpiolib: fix up function prototypes etc" Actually we need static inlines in include/asm-generic/gpio.h as well since we may have GPIOLIB but not PINCTRL. Make sure to move all the CONFIG_PINCTRL business to the end of the file so we are sure we have declared struct gpio_chip. And we need to keep the static inlines in <linux/gpio.h> but here for the !CONFIG_GENERIC_GPIO case, and then we may as well throw in a few warnings like the other prototypes there, if someone would have the bad taste of compiling without GENERIC_GPIO even. Signed-off-by: -
Linus Walleij authored
The fact that of_gpiochip_add_pin_range() and gpiochip_add_pin_range() share too much code is fragile and will invariably mean that bugs need to be fixed in two places instead of one. So separate the concerns of gpiolib.c and gpiolib-of.c and have the latter call the former as back-end. This is necessary also when going forward with other device descriptions such as ACPI. This is done by: - Adding a return code to gpiochip_add_pin_range() so we can reliably check whether this succeeds. - Get rid of the custom of_pinctrl_add_gpio_range() from pinctrl. Instead create of_pinctrl_get() to just retrive the pin controller per se from an OF node. This composite function was just begging to be deleted, it was way to purpose-specific. - Use pinctrl_dev_get_name() to get the name of the retrieved pin controller and use that to call back into the generic gpiochip_add_pin_range(). Now the pin range is only allocated and tied to a pin controller from the core implementation in gpiolib.c. Signed-off-by: -
Linus Walleij authored
This makes us call gpiochio_remove_pin_ranges() in the gpiochip_remove() function, so we get rid of ranges when freeing the chip. Reviewed-by:
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Linus Walleij authored
Commit 69e1601bca88809dc118abd1becb02c15a02ec71 "gpiolib: provide provision to register pin ranges" Introduced both of_gpiochip_remove_pin_range() and gpiochip_remove_pin_ranges(). But the contents are exactly the same so remove the OF one and rely on the range deletion in the core. Reviewed-by:
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Linus Walleij authored
Commit 69e1601bca88809dc118abd1becb02c15a02ec71 "gpiolib: provide provision to register pin ranges" Declared the of_gpiochip_[add|remove]_pin_range() global while they should be static as they are only ever used in this file. Let's convert them to static. Reviewed-by:
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Linus Walleij authored
Commit 69e1601bca88809dc118abd1becb02c15a02ec71 "gpiolib: provide provision to register pin ranges" Got most of it's function prototypes wrong, so fix this up by: - Moving the void declarations into static inlines in <linux/gpio.h> (previously the actual prototypes were declared here...) - Declare the gpiochip_add_pin_range() and gpiochip_remove_pin_ranges() functions in <asm-generic/gpio.h> together with the pin range struct declaration itself. - Actually only implement these very functions in gpiolib.c if CONFIG_PINCTRL is set. - Additionally export the symbols since modules will need to be able to do this. Reviewed-by:
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Axel Lin authored
Staticize sirfsoc_gpio_irq_map() function. Signed-off-by:
Barry Song <Baohua.Song@csr.com> Signed-off-by:
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Axel Lin authored
Staticize u300_pin_config_get() and u300_pin_config_set() functions. Signed-off-by:
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Linus Walleij authored
This converts the U300 pin controller to use managed resources (devm_*) for it's memory region. Signed-off-by: -
Linus Walleij authored
This switches the COH 901 pin controller to use managed resources (devm_*) for memory remaps, clocks, etc. Signed-off-by: -
Linus Walleij authored
This switches the COH 901 pinctrl driver to allocate its GPIO IRQs dynamically, and start to use a linear irqdomain to map from the hardware IRQs. This way we can cut away the complex allocation of IRQ numbers from the <mach/irqs.h> file. Signed-off-by: -
Linus Walleij authored
The U300 IRQs were bumped once to offset to 1 (in order to avoid using IRQ 0 which is now NO_IRQ). This was OK as we were still passing the number of irqs in the .nr_irqs field of the machine, with descriptors allocated at boot time. However .nr_irqs should be 0, leading the system to reserve the first 16 IRQs. Then the VIC driver will complain that IRQs 1 thru 15 are pre-allocated, so to avoid this and use free descriptors, move all IRQs up to offset 32. This will all be done away with as we migrate to device tree, so it is an interim solution. Acked-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Viresh Kumar authored
Most of SPEAr SoCs, which support pinctrl, can configure & use pads as gpio. This patch adds plgpio driver for configuring these pads as gpio. Signed-off-by:
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Shiraz Hashim authored
pinctrl subsystem needs gpio chip base to prepare set of gpio pin ranges, which a given pinctrl driver can handle. This is important to handle pinctrl gpio request calls in order to program a given pin properly for gpio operation. As gpio base is allocated dynamically during gpiochip registration, presently there exists no clean way to pass this information to the pinctrl subsystem. After few discussions from [1], it was concluded that may be gpio controller reporting the pin range it supports, is a better way than pinctrl subsystem directly registering it. [1] http://comments.gmane.org/gmane.linux.ports.arm.kernel/184816 Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
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Viresh Kumar authored
This reverts earlier commit which removed pinctrl_remove_gpio_range(), because at that time there weren't any more users of that routine. It was removed as the removal of ranges was done in unregister of pinctrl. But as we are now registering stuff from gpiolib, we may remove and insert a gpio module multiple times. So, we need this routine again. Signed-off-by:
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Axel Lin authored
The of_device_id table is supposed to be zero-terminated. Signed-off-by:
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Barry Song authored
The driver supports old up SiRFprimaII SoCs, this patch makes it support the new SiRFmarco as well. SiRFmarco, as a SMP SoC, adds new SIRFSOC_GPIO_PAD_EN_CLR registers, to disable GPIO pad, we should write 1 to the corresponding bit in the new CLEAR register instead of writing 0 to SIRFSOC_GPIO_PAD_EN. Signed-off-by:
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Thomas Petazzoni authored
Like the spear platform, the mvebu platform has multiple files: one core file, and then one file per SoC family. More files will be added later, as support for mach-orion5x and mach-mv78xx0 SoCs is added to pinctrl-mvebu. For those reasons, having a separate subdirectory, drivers/pinctrl/mvebu/ makes sense, and it had already been suggested by Linus Wallej when the driver was originally submitted. Signed-off-by:
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by:
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Thomas Petazzoni authored
Including the core.h header for the pinctrl subsystem is not necessary, and it is actually causing problems when moving the pinctrl-mvebu drivers into a separate subdirectory. Signed-off-by:
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