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path: root/drivers/gpio/gpio-sta2x11.c
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2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333Thomas Gleixner1-14/+1
Based on 1 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 version 2 as published by the free software foundation 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 write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 136 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Alexios Zavras <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-04-05drivers: gpio: sta2x11: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-4/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2018-07-02gpio: sta2x11: Inline regs macroLinus Walleij1-12/+7
I don't like the __namespace and this is simple enough to just inline at all sites. Cc: Bartosz Golaszewski <[email protected]> Acked-by: Alessandro Rubini <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2018-07-02gpio: sta2x11: Use BIT() macroLinus Walleij1-12/+8
This removes the custom implementation of the BIT() macro and inlines all calls to the helper. Cc: Bartosz Golaszewski <[email protected]> Acked-by: Alessandro Rubini <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2018-07-02gpio: sta2x11: Include the right headerLinus Walleij1-1/+1
This is a GPIO driver, include only <linux/gpio/driver.h>. Cc: Bartosz Golaszewski <[email protected]> Acked-by: Alessandro Rubini <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2017-08-21gpio: sta2x11: use devres for irq generic chipBartosz Golaszewski1-4/+9
Use resource managed variants of irq_alloc_generic_chip() and irq_setup_generic_chip(). Signed-off-by: Bartosz Golaszewski <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2017-08-21gpio: sta2x11: disallow unbinding the driverBartosz Golaszewski1-0/+1
This driver is non-modular so explicitly disallow a driver unbind. Signed-off-by: Bartosz Golaszewski <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2017-05-29gpio: sta2x11: check the return value of irq_alloc_generic_chip()Bartosz Golaszewski1-2/+10
This function can fail, so check the return value before dereferencing the returned pointer. Signed-off-by: Bartosz Golaszewski <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2017-03-15gpio: sta2x11: use resource management for irqsBartosz Golaszewski1-11/+6
Use device resource managed variants of irq_alloc_descs() and request_irq() and remove the code manually freeing irq resources. Signed-off-by: Bartosz Golaszewski <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-03-31gpio: sta2x11: make explicitly non-modularPaul Gortmaker1-6/+2
The Kconfig currently controlling compilation of this code is: drivers/gpio/Kconfig:config GPIO_STA2X11 drivers/gpio/Kconfig: bool "STA2x11/ConneXt GPIO support" ...meaning that it currently is not being built as a module by anyone. Lets remove the couple traces of modularity, so that when reading the driver there is no doubt it is builtin-only. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Cc: Alexandre Courbot <[email protected]> Cc: [email protected] Signed-off-by: Paul Gortmaker <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-02-23gpio: sta2x11: Use devm_gpiochip_add_data() for gpio registrationLaxman Dewangan1-1/+1
Use devm_gpiochip_add_data() for GPIO registration. Signed-off-by: Laxman Dewangan <[email protected]>
2016-01-05gpio: sta2x11: use gpiochip data pointerLinus Walleij1-6/+6
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Alessandro Rubini <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2015-12-26gpio: sta2x11: Be sure to clamp return valueLinus Walleij1-1/+1
As we want gpio_chip .get() calls to be able to return negative error codes and propagate to drivers, we need to go over all drivers and make sure their return values are clamped to [0,1]. We do this by using the ret = !!(val) design pattern. Cc: Alessandro Rubini <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2015-07-28gpio: kill off set_irq_flags usageRob Herring1-1/+1
set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed as most platforms don't use probing. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <[email protected]> Cc: Michael Hennerich <[email protected]> Acked-by: Linus Walleij <[email protected]> Cc: Alexandre Courbot <[email protected]> Cc: Ray Jui <[email protected]> Cc: Stephen Warren <[email protected]> Cc: Thierry Reding <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Linus Walleij <[email protected]>
2014-10-20gpio: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <[email protected]>
2013-12-04gpio/pinctrl: make gpio_chip members typed booleanLinus Walleij1-1/+1
This switches the two members of struct gpio_chip that were defined as unsigned foo:1 to bool, because that is indeed what they are. Switch all users in the gpio and pinctrl subsystems to assign these values with true/false instead of 0/1. The users outside these subsystems will survive since true/false is 1/0, atleast we set some kind of more strict typing example. Signed-off-by: Linus Walleij <[email protected]>
2013-08-16gpio: use dev_get_platdata()Jingoo Han1-1/+1
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2013-06-17gpio-sta2x11: Convert to use devm_ioremap_resourceTushar Behera1-1/+3
Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()") introduced devm_ioremap_resource() and deprecated the use of devm_request_and_ioremap(). Signed-off-by: Tushar Behera <[email protected]> CC: [email protected] CC: Grant Likely <[email protected]> CC: Linus Walleij <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2013-06-17gpio-sta2x11: Fix potential NULL pointer dereferenceSachin Kamat1-0/+2
devm_kzalloc can return NULL. Check for it before dereferencing. Signed-off-by: Sachin Kamat <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2012-11-28gpio: remove use of __devinitBill Pemberton1-2/+2
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <[email protected]> Cc: Grant Likely <[email protected]> Cc: Peter Tyser <[email protected]> Cc: Santosh Shilimkar <[email protected]> Cc: Kevin Hilman <[email protected]> Acked-by: Linus Walleij <[email protected]> Acked-by: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-07-05gpio-sta2x11: don't use pdata if nullAlessandro Rubini1-2/+3
If there is no platform data available, the driver shouldn't use the pointer or it will oops. Since things will mostly work nonetheless, (the BIOS may have set up the pins properly), I'd better not fail the probe even in this case. Signed-off-by: Alessandro Rubini <[email protected]> Acked-by: Giancarlo Asnaghi <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2012-05-09gpio: Add STA2X11 GPIO blockAlessandro Rubini1-0/+435
This introduces 128 gpio bits (for each PCI device installed) with working interrupt support. Signed-off-by: Alessandro Rubini <[email protected]> Acked-by: Giancarlo Asnaghi <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]>
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