- 27 3月, 2013 1 次提交
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由 Catalin Marinas 提交于
These functions have been introduced by commit 10a8c383 (irq: introduce entry and exit functions for chained handlers) in asm/mach/irq.h. This patch moves them to linux/irqchip/chained_irq.h so that generic irqchip drivers do not rely on architecture specific header files. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Tested-by: NMarc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <rob.herring@calxeda.com>
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- 13 10月, 2012 3 次提交
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This is also include the gpio controller as the IP share both. Each soc will have to describe the SoC limitation and pin configuration via DT. This will allow to do not need to touch the C code when adding new SoC if the IP version is supported. Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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On the at91sam9x5 SoC series, GPIO banks B and D only have 19 and 22 pins. So add a property to set this parameter. Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Configure the pin as pio when requested. It is needed to configure the pin as PIO at "request time" when we are using DT. Indeed, the muxing via old AT91 API is not allowed anymore if we are using the plain gpiolib. Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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- 02 7月, 2012 1 次提交
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由 Ludovic Desroches 提交于
The Advanced Interrupt Controller allows us to use the fast EOI handler type. It lets us remove the Atmel specific workaround into arch/arm/kernel/irq.c used to indicate to the AIC the end of the interrupt treatment. Signed-off-by: NLudovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: NWill Deacon <will.deacon@arm.com>
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- 01 3月, 2012 7 次提交
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由 Nicolas Ferre 提交于
This patch adds the support for new PIO controller found on some at91sam SOCs. - more peripheral multiplexing - more features to configure on a PIO (pull-down, Schmitt trigger, debouncer) - support for several IRQ triggering features (type and polarity) Support for those new features are retrieved from the device tree compatibility string. Debugfs at91_gpio file is updated to monitor configuration. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Nicolas Ferre 提交于
Both AIC and GPIO controllers are now using the standard of_irq_init() function to initialize IRQs in case of DT use. The DT specific initialization functions are now separated from the non-DT case and are now using "linear" irq domains. The .map() irqdomain operation is responsible for positioning the IRQ handlers. In AIC case, the Linux IRQ number is directly programmed in the hardware to avoid an additional reverse mapping operation. The AIC position its irq domain as the "default" irq domain. For DT case, the priority is not yet filled in the SMR. It will be the subject of another patch. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Nicolas Ferre 提交于
This value is determined at runtime using device tree or platform data information. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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由 Nicolas Ferre 提交于
Replace the gpio_to_irq() macro by a plain gpiolib .to_irq() handler. This call is using the irqdomain to translate hardware to Linux IRQ numbers. The irq_to_gpio() macro is completely removed. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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由 Nicolas Ferre 提交于
Protect build failure in case of non-DT configuration: the gpio_chip structure does not have a of_node field in case of !CONFIG_OF_GPIO. Keep this in a separate patch as it can be reverted if the field is added for both DT/non-DT cases. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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由 Nicolas Ferre 提交于
Add "legacy" type of irqdomain to preserve old-style numbering and allow smooth transition for both DT and non-DT cases. Original idea and code by Jean-Christophe Plagniol-Villard. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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由 Nicolas Ferre 提交于
What was true only on at91sam9263 about the sharing of a single AIC IRQ line for several GPIO banks is now used by several Atmel SoCs. Change a variable name to allow better understanding while introducing IRQ domains in following patches. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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- 29 11月, 2011 4 次提交
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Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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this will simplify the switch to the DT and later to the platform_device Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
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- 28 11月, 2011 1 次提交
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Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: NRyan Mallon <rmallon@gmail.com>
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- 08 8月, 2011 2 次提交
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由 Russell King 提交于
Convert arch/arm includes of mach/gpio.h and asm/gpio.h to linux/gpio.h before we start consolidating the individual platform implementations of the gpio header files. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
asm/gpio.h already directly includes mach/gpio.h. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 29 3月, 2011 4 次提交
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由 Thomas Gleixner 提交于
Use irq_set_chip_and_handler() instead. Converted with coccinelle. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Convert to the new function names. Automated with coccinelle. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Avoid the whole lazy disable dance in the demux handler by providing a irq_disable() callback. Use the proper accessor functions and tidy up gpio_irq_handler() Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Remove the open coded access to irq_desc which will fail on sparse irq and use the proper wrappers. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 14 1月, 2011 1 次提交
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由 Lennert Buytenhek 提交于
Signed-off-by: NLennert Buytenhek <buytenh@secretlab.ca>
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- 27 6月, 2009 1 次提交
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由 Ryan Mallon 提交于
Remove at91_gpiolib_request. It returns -EPERM if a request pin is not in GPIO mode, however we want to be able to gpio_request alternative function pins to reserve them, and in some cases we need to be able to use the gpiolib functions on alternative function pins. Signed-off-by: NRyan Mallon <ryan@bluewatersys.com> Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 15 2月, 2009 1 次提交
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由 Andrew Victor 提交于
Enable the GPIO clocks earlier in the initialization sequence. This allow the board-setup code to read and set GPIO pins. Signed-off-by: NMarc Pignat <marc.pignat@hevs.ch> Signed-off-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 12 2月, 2009 1 次提交
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由 Ryan Mallon 提交于
Add support for gpiolib, including debugfs output, to the AT91 family. The at91_get/set_gpio_value calls still exist since they are used by the atmel serial driver. Signed-off-by: NRyan Mallon <ryan@bluewatersys.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 23 10月, 2008 1 次提交
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由 David Brownell 提交于
From: David Brownell <dbrownell@users.sourceforge.net> The "5298/1: Drop desc_handle_irq()" patch went overboard and deleted an essential line of code, causing all AT91 GPIO interrupts to oops (in irq). Trimmed example: Unable to handle kernel NULL pointer dereference at virtual address 000000c4 ... PC is at gpio_irq_handler+0x78/0xd0 LR is at gpio_irq_handler+0x38/0xd0 ... Backtrace: [<c0029884>] (gpio_irq_handler+0x0/0xd0) from [<c0020054>] (__exception_text_start+0x54/0x7c) [<c0020000>] (__exception_text_start+0x0/0x7c) from [<c00209ec>] (__irq_svc+0x2c/0x60) Exception stack(0xc1c1de00 to 0xc1c1de48) [<c01f4ca8>] (_spin_unlock_irq+0x0/0x3c) from [<c01389f8>] (at91ether_open+0x220/0x318) [<c01387d8>] (at91ether_open+0x0/0x318) from [<c018caa4>] (dev_open+0xa8/0x10c) [<c018c9fc>] (dev_open+0x0/0x10c) from [<c018b874>] (dev_change_flags+0x98/0x164) [<c018b7dc>] (dev_change_flags+0x0/0x164) from [<c0019f8c>] (ip_auto_config+0x164/0xe28) [<c0019e28>] (ip_auto_config+0x0/0xe28) from [<c0020318>] (__exception_text_end+0x60/0x180) [<c00202b8>] (__exception_text_end+0x0/0x180) from [<c0008738>] (kernel_init+0x70/0xd8) [<c00086c8>] (kernel_init+0x0/0xd8) from [<c00398e0>] (do_exit+0x0/0x6ac) This patch restores the missing line'o'code. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 09 10月, 2008 1 次提交
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由 Dmitry Baryshkov 提交于
desc_handle_irq() was declared as obsolete since long ago. Replace it with generic_handle_irq() Signed-off-by: NDmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 06 9月, 2008 1 次提交
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由 Russell King 提交于
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 07 8月, 2008 2 次提交
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由 Russell King 提交于
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 06 3月, 2008 1 次提交
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由 David Brownell 提交于
Remove false lockdep warnings about lock recursion when declaring IRQs as being wake-capable, by marking putting GPIO irq_desc locks into their own class. (Thanks to Peter Zijlstra for helping track down such a small fix to this problem.) Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 04 2月, 2008 1 次提交
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由 David Brownell 提交于
On the at91sam9263, IRQs for GPIO banks C and D don't currently work. This is because banks C, D, and E share one clock and toplevel IRQ, but the AT91 code setting up and handling GPIO IRQs expects no sharing. This patch: - Fixes GPIO IRQ setup and handling to cope with GPIO banks that are shared like on sam9263 chips, by setting up a list of those banks and making the IRQ dispatching logic scan that list. - Precomputes the address of each bank's registers, saving it with other per-bank data so that it no longer needs to be constantly recomputed during IRQs and other GPIO operations. That shrinks hot-path code, while helping the GPIO bank irq updates. - Fixes a minor bug where IRQ_TYPE_NONE was wrongly rejected (it just means "use the default", which is "both edges" here). Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 26 1月, 2008 1 次提交
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由 Andrew Victor 提交于
This patch adds a debug interface (if CONFIG_DEBUG_FS is selected) to display the basic configuration and current state of the GPIO pins on the Atmel AT91 processors. Signed-off-by: NAndrew Victor <andrew@sanpeople.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 20 10月, 2007 1 次提交
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由 Robert P. J. Day 提交于
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com> Signed-off-by: NAdrian Bunk <bunk@kernel.org>
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- 17 3月, 2007 1 次提交
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由 David Brownell 提交于
It's been pointed out that output GPIOs should have an initial value, to avoid signal glitching ... among other things, it can be some time before a driver is ready. This patch corrects that oversight, fixing - documentation - platforms supporting the GPIO interface - users of that call (just one for now, others are pending) There's only one user of this call for now since most platforms are still using non-generic GPIO setup code, which in most cases already couples the initial value with its "set output mode" request. Note that most platforms are clear about the hardware letting the output value be set before the pin direction is changed, but the s3c241x docs are vague on that topic ... so those chips might not avoid the glitches. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NAndrew Victor <andrew@sanpeople.com> Acked-by: NMilan Svoboda <msvoboda@ra.rockwell.com> Acked-by: NHaavard Skinnemoen <hskinnemoen@atmel.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 2月, 2007 1 次提交
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由 Andrew Victor 提交于
The new gpio_direction_input() and gpio_direction_output() functions were both enabling output mode. When configuring a GPIO for input mode, you need to program the ODR (Output Disable Register). Signed-off-by: NAndrew Victor <andrew@sanpeople.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 08 2月, 2007 1 次提交
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由 Andrew Victor 提交于
Now that Linux includes support for the Atmel AT91SAM9260 and AT91SAM9261 processors in addition to the original Atmel AT91RM9200 (with support for more AT91 processors pending), the "mach-at91rm9200" and "arch-at91rm9200" directories should be renamed to indicate their more generic nature. The following git commands should be run BEFORE applying this patch: git-mv arch/arm/mach-at91rm9200 arch/arm/mach-at91 git-mv include/asm-arm/arch-at91rm9200 include/asm-arm/arch-at91 Signed-off-by: NAndrew Victor <andrew@sanpeople.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 24 1月, 2007 1 次提交
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由 Andrew Victor 提交于
Cleanup of at91 platform level gpio wake and suspend/resume logic. The GPIO core now delegates wakeups to the parent AIC by refcounting, and delegates clock management to the clock API. This makes these system modules more independent of each other, which is cleaner and will also help with the AT91SAM9263 (where some GPIO controllers share the same irq and clock). Original patch by David Brownell. Signed-off-by: NAndrew Victor <andrew@sanpeople.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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