- 08 Apr, 2015 7 commits
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Varka Bhadram authored
Signed-off-by:
Varka Bhadram <varkab@cdac.in> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org>
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Varka Bhadram authored
This driver no need to set the owner field, it will be populated by driver core. Signed-off-by:
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Varka Bhadram authored
Signed-off-by:
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Varka Bhadram authored
We can use devres API for allocating memory. No need of using kfree. Signed-off-by:
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Michael S. Tsirkin authored
Header moved from linux/pci_ids.h to uapi/linux/pci_ids.h, use the new header directly so we can drop the wrapper in include/linux/pci_ids.h. Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Vladimir Zapolskiy authored
devm_ioremap_resource() returns IOMEM_ERR_PTR() and it never returns NULL, fix the check to prevent access to invalid virtual address. Signed-off-by:
Vladimir Zapolskiy <vz@mleia.com> Signed-off-by:
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Huacai Chen authored
Improve Loongson-2's GPIO driver to support Loongson-3A/3B, and update Loongson-3's default config file. Acked-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
Huacai Chen <chenhc@lemote.com> Reviewed-by:
Alexandre Courbot <acourbot@nvidia.com> Signed-off-by:
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- 07 Apr, 2015 2 commits
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Huacai Chen authored
Move Loongson-2's GPIO driver to drivers/gpio and add Kconfig options. Acked-by:
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Huacai Chen authored
This cleanup is prepare to move the driver to drivers/gpio. Custom definitions of gpio_get_value()/gpio_set_value() are dropped. Acked-by:
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- 27 Mar, 2015 10 commits
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Dmitry Torokhov authored
Even if bus is not hot-pluggable, the devices can be unbound from the driver via sysfs, so we should not be using __exit annotations on remove() methods. The only exception is drivers registered with platform_driver_probe() which specifically disables sysfs bind/unbind attributes. Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Grygorii Strashko authored
Now OMAP GPIO driver prepared for GPIO_INDEX() macro removing. Do It ;) Tested-by:
Tony Lindgren <tony@atomide.com> Tested-by:
Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by:
Santosh Shilimkar <ssantosh@kernel.org> Acked-by:
Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by:
Grygorii Strashko <grygorii.strashko@linaro.org> Signed-off-by:
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Grygorii Strashko authored
Now OMAP GPIO driver prepared for omap_irq_to_gpio() removing. Do it ;) Tested-by:
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Grygorii Strashko authored
Now OMAP GPIO driver prepared for GPIO_BIT() macro removing. Do it ;) Tested-by:
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Grygorii Strashko authored
Convert GPIO IRQ functions to use GPIO offset instead of system GPIO numbers. This allows to drop unneeded conversations between system GPIO <-> GPIO offset which are done in many places and many times. It is safe to do now because: - gpiolib always passes GPIO offset to GPIO controller - OMAP GPIO driver converted to use IRQ domain, so struct irq_data->hwirq contains GPIO offset This is preparation step before removing: #define GPIO_INDEX(bank, gpio) #define GPIO_BIT(bank, gpio) int omap_irq_to_gpio() Tested-by:
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Grygorii Strashko authored
The 'gpio' parameter isn't needed any more as it duplicates 'offset' parameter, so drop it. Tested-by:
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Grygorii Strashko authored
Convert debounce functions to use GPIO offset instead of system GPIO numbers. This allows to drop unneeded conversations between system GPIO <-> GPIO offset which are done in many places and many times. It is safe to do now because: - gpiolib always passes GPIO offset to GPIO controller - OMAP GPIO driver converted to use IRQ domain This is preparation step before removing: #define GPIO_INDEX(bank, gpio) #define GPIO_BIT(bank, gpio) int omap_irq_to_gpio() Tested-by:
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Grygorii Strashko authored
Both functions omap_set_gpio_dataout_reg() and omap_set_gpio_dataout_mask() accept GPIO offset as 'gpio' input parameter, so rename it to 'offset' and drop usage of GPIO_BIT() macro. Tested-by:
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Grygorii Strashko authored
Convert omap_gpio_is_input() to use GPIO offset instead of mask and, in such way, make code simpler and remove few lines of code. Tested-by:
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kbuild test robot authored
Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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- 26 Mar, 2015 4 commits
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Geert Uytterhoeven authored
When the GPIO module is needed for wake-up, it's module clock must not be disabled. Hence implement irq_chip.irq_set_wake(), which increments/decrements the clock's enable_count when needed, and forwards the wake-up state to the upstream interrupt controller. This fixes wake-up from s2ram using gpio-keys when using a PM Domain to manage the module clock. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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Geert Uytterhoeven authored
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Geert Uytterhoeven authored
The existing variable gpio_chip already points to the gpiochip instance, hence use it everywhere. Signed-off-by:
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Shobhit Kumar authored
Export PANEL_EN/DISABLE (offset 0x52) as additional GPIO. Needed by display driver to enable the DSI panel on BYT platform where the Panel EN/Disable control is routed thorugh CRC PMIC CC: Samuel Ortiz <sameo@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Thierry Reding <thierry.reding@gmail.com> Acked-by:
Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
Shobhit Kumar <shobhit.kumar@intel.com> Signed-off-by:
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- 19 Mar, 2015 4 commits
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Andy Shevchenko authored
The Intel Quark SoC contains the DW GPIO on board. While fixing the build error the commit 1972c97d (gpio: dwapb: fix compile errors) disables the possibility to build the driver on X86, i.e. Intel Quark. The patch reenables it for Intel Quark as well. Since we have Intel Quark SoC introduced in 4.0-rc1 I would like to make this fix available there as well, though the actual MFD driver [1] is applied only for next version. [1] https://lkml.org/lkml/2015/2/1/217 Fixes: 1972c97d (gpio: dwapb: fix compile errors) Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Rafael J. Wysocki authored
In acpi_gpiochip_request_interrupts() the handle local variable already contains the value that we want to pass to acpi_walk_resources(), so it is better to use that variable instead of evaluating ACPI_HANDLE() once more for the same device. Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by:
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Rafael J. Wysocki authored
If dev is NULL in __gpiod_get_index() and both ACPI and OF are enabled, it will be checked twice before the code decides to give up with DT/ACPI lookup, so avoid that. Also use the observation that ACPI_COMPANION() is much more efficient than ACPI_HANDLE(), because the latter uses the former and carries out a check and a pointer dereference on top of it, so replace the ACPI_HANDLE() check with an ACPI_COMPANION() one which does not require the additional IS_ENABLED(CONFIG_ACPI) check too. Signed-off-by:
Hanjun Guo <hanjun.guo@linaro.org> Acked-by:
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Linus Walleij authored
These functions do not belong in <asm-generic/gpio.h> since the split into separate GPIO headers under <linux/gpio/*>. Move them to <linux/gpio/driver.h> as is apropriate. Acked-by:
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- 17 Mar, 2015 4 commits
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Andreas Bofjall authored
Add support for the GPIOs found on the Fintek SuperI/O chip F71869A, such as the one found on the Jetway JNF99-525 motherboard, to the f7188x gpio driver. Signed-off-by:
Andreas Bofjall <andreas@gazonk.org> Reviewed-by:
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Andreas Bofjall authored
Add support for the GPIOs found on the Fintek SuperI/O chip F71869, such as the one found on the Jetway NF96u-525 motherboard, to the f7188x gpio driver. Signed-off-by:
Les Schaffer <schaffer@optonline.net> Reviewed-by:
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Andreas Bofjall authored
The company is called "Fintek", not "Fintech". Fix it. Signed-off-by:
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Linus Walleij authored
Commit 1feb57a2 "gpio: add parameter to allow the use named gpios" includes a double-consted array. What we want is not const const * but const * const (const pointer to const data). Fix this. Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Olliver Schinagl <oliver@schinagl.nl> Cc: Rojhalat Ibrahim <imr@rtschenk.de> Signed-off-by:
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- 09 Mar, 2015 5 commits
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Grygorii Strashko authored
GPIOLib core implemnts irqchip->irq_request/release_resources callbacks internally and these callbacks already contain clalls of gpiochip_lock/unlock_as_irq(). Hence, remove unnecessary call of gpiochip_unlock_as_irq() from omap_gpio_irq_shutdown(). Signed-off-by:
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Rojhalat Ibrahim authored
Extend the documentation for the gpiod_set_array() functions and elaborate a bit on possible use cases. Signed-off-by:
Rojhalat Ibrahim <imr@rtschenk.de> Signed-off-by:
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Josh Wu authored
fix typo in the document. Signed-off-by:
Josh Wu <josh.wu@atmel.com> Signed-off-by:
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Rob Herring authored
The macro BANK_OFF which calculates the base offset for each GPIO port. The macro is needlessly complex and unreadable. Simplify the calculation to a simple math operation. Signed-off-by:
Rob Herring <robh@kernel.org> Cc: linux-gpio@vger.kernel.org Reviewed-by:
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Kefeng Wang authored
Hisilicon arm64 soc uses designWare gpio, re-enable it after commit 1972c97d(gpio: dwapb: fix compile errors). Signed-off-by:
Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by:
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- 07 Mar, 2015 2 commits
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Tien Hock Loh authored
Adds a new driver device tree binding for Altera soft GPIO IP Signed-off-by:
Tien Hock Loh <thloh@altera.com> Signed-off-by:
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Tien Hock Loh authored
Adds a new driver for Altera soft GPIO IP. The driver is able to do read/write and allows GPIO to be a interrupt controller. Tested on Altera GHRD on interrupt handling and IO. v10: - Updated conflicting device tree parameters - Removed unused headers - Used macro instead of magic numbers for ngpio - Code readability cleanup using ?: and temporal variables - Removed leftover garbage and unnecessary function calls - Checked bgpio_init but unusable because Altera GPIO may not be a multiple of 8 bits v9: - Removed duplicated initialization on set_type using temporals to improve code readability in calling generic_handle_irq - Using ?: ternary to reduce code size v8: - Using for_each_set_bit - Added const for struct definition - Removed naggy pr_err - Sort alpha header - Remove unused macros - Use fixed width data types instead of unsigned long - Whitespace issue fixes - Removed _relaxed function for better compatibility across different CPU - Changed irq_create_mapping to platform_get_irq updated implementation to use gpiochip_irqchip_add - Reserve interrupt-cells number 2 in device tree binding for future use - Remove confusing sections on devicetree bindings - Added tristate Kconfig help text v7: - Used dev_warn instead of pr_warn - Clean up unnecesarry if else indentation v6: - Added irq_startup and irq_shutdown - Changed bitwise clamping style - Cleanup bitwise operation to improve readability change naming of mapped irqs from virq to mapped_irq v5: - Dispose irq_domain mapping correctly - Update optional binding description in binding docs v4: - Added vendor prefix to devicetree binding for IP specific properties using MMIO GPIO helper library instead of manually map PIO to memory - altera_gpio_chip inline struct documentation to kerneldoc - Using dev_ print to print a better failure message v2, v3: - Do not reference NO_IRQ - Updated irq_set_type to only allow the hardware configured irq type Signed-off-by:
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- 06 Mar, 2015 1 commit
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Axel Lin authored
Signed-off-by:
Axel Lin <axel.lin@ingics.com> Signed-off-by:
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- 05 Mar, 2015 1 commit
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Rojhalat Ibrahim authored
Add device managed variants of gpiod_get_array() / gpiod_put_array() functions for conveniently obtaining and disposing of an entire array of GPIOs with one function call. Signed-off-by:
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