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* gpiolib support for the PXA architecturePhilipp Zabel2008-02-05
| | | | | | | | | | | | | | | | | | | | | This adds gpiolib support for the PXA architecture: - move all GPIO API functions from generic.c into gpio.c - convert the gpio_get/set_value macros into inline functions This makes it easier to hook up GPIOs provided by external chips like ASICs and CPLDs. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Jean Delvare <khali@linux-fr.org> Cc: Eric Miao <eric.miao@marvell.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [ Minor ARM fixup from David Brownell folded into this ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] pxa: introduce sysdev for IRQ register saving/restoringeric miao2008-02-04
| | | | | Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: PXA3xx base supporteric miao2007-10-15
| | | | | Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4560/1: pxa: move processor specific set_wake logic out of irq.ceric miao2007-10-12
| | | | | | | | | | | | | a function pxa_init_irq_set_wake() was introduced, so that processor specific code could install their own version code setting PFER and PRER registers within pxa_gpio_irq_type are removed, and the edge configuration is postponed to the (*set_wake) and copies the GRER and GFER register, which will always be set up correctly by pxa_gpio_irq_type() Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4559/1: pxa: make PXA_LAST_GPIO a run-time variableeric miao2007-10-12
| | | | | | | | | | | | | | | This definition produces processor specific code in generic function pxa_gpio_mode(), thus creating inconsistencies for support of pxa25x and pxa27x in a single zImage. As David Brownell suggests, make it a run-time variable and initialize at run-time according to the number of GPIOs on the processor. For now the initialization happens in pxa_init_irq_gpio(), since there is already a parameter for that, besides, this is and MUST be earlier than any subsequent calls to pxa_gpio_mode(). Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4557/1: Fix PXA irq gpio initializationSamuel2007-08-28
| | | | | | | | | | | | | As pointed out by Jrgen, we are overflowing the number of GPIOs in pxa_init_irq_gpio(). I'm seeing the same problem on my HTC Universal PXA270 based PDA. According to Eric, the function argument is the number of GPIOs, so we should keep the semantics and reduce the number of iteration by 1. Signed-off-by: Samuel Ortiz <sameo@openedhand.com> Acked-by: Jrgen Schindele <linux@schindele.name> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4450/1: pxa: add pxa25x_init_irq() and pxa27x_init_irq()Eric Miao2007-07-12
| | | | | | | | | | | | | /* should be ok this time, I aligned this patch to your arm:pxa2.mbox */ 1. move pxa25x specific IRQ initialization code to pxa25x_init_irq() and pxa27x code to pxa27x_init_irq(), remove pxa_init_irq() 2. replace all pxa_init_irq() with their PXA25x or PXA27x specific functions Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4438/1: PXA: remove #ifdef .. #endif from pxa_gpio_demux_handler()Eric Miao2007-07-12
| | | | | | | | | | | | | | | 1. use GPIO_IRQ_mask[] to select those bits of interest, actually only those "unmasked" GPIO IRQs with their corresponding bits in GPIO_IRQ_mask[] set to "1" should be checked 2. remove #ifdef PXA_LAST_GPIO > 96 .. #endif, GPIO_IRQ_mask[] is used to mask out the irrelevant bits, so that even though the GEDR3 on PXA25x is reserved, it will be masked, and the following code will never run. Another point is that GPIO85- GPIO95 bits within GEDR2 will also be masked out on PXA25x Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4437/1: PXA: move the GPIO IRQ initialization code to pxa_init_irq_gpio()Eric Miao2007-07-12
| | | | | | | move the GPIO IRQ initialization code to pxa_init_irq_gpio() Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4436/1: PXA: move low IRQ initialization code to pxa_init_irq_low()Eric Miao2007-07-12
| | | | | | | 1. move low IRQ initialization code to pxa_init_irq_low() Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4435/1: PXA: remove PXA_INTERNAL_IRQSEric Miao2007-07-12
| | | | | | | | | | | | | | | 1. define PXA_GPIO_IRQ_BASE to be right after the internal IRQs, and define PXA_GPIO_IRQ_NUM to be 128 for all PXA2xx variants 2. make the code specific to the high IRQ numbers (32..64) to be PXA27x specific 3. add a function pxa_init_irq_high() to initialize the internal high IRQ chip, the invoke of this function could be moved to PXA27x specific initialization code Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4434/1: PXA: remove PXA_IRQ_SKIPEric Miao2007-07-12
| | | | | | | | | | | | | 1. PXA_IRQ_SKIP is defined to be 7 on PXA25x so that the first IRQ starts from zero. This makes IRQ numbering inconsistent between PXA25x and PXA27x. Remove this macro so that the same IRQ_XXXXX definition has the same value on both PXA25x and PXA27x. 2. make IRQ_SSP3..IRQ_PWRI2C valid only if PXA27x is defined, this avoids unintentional use of these macros on PXA25x Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4236/2: basic {enable,disable}_irq_wake() support for PXAPhilipp Zabel2007-04-21
| | | | | pxa_set_gpio_wake handles GPIOs > 1, so IRQ_TO_GPIO has to be used instead of just substracting IRQ_GPIO0 from the irq number.
* [ARM] Remove needless linux/ptrace.h includesRussell King2007-04-21
| | | | | | | | | Lots of places in arch/arm were needlessly including linux/ptrace.h, resumably because we used to pass a struct pt_regs to interrupt handlers. Now that we don't, all these ptrace.h includes are redundant. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Remove compatibility layer for ARM irqsRussell King2006-11-30
| | | | | | | | | | | | set_irq_chipdata -> set_irq_chip_data get_irq_chipdata -> get_irq_chip_data do_level_IRQ -> handle_level_irq do_edge_IRQ -> handle_edge_irq do_simple_IRQ -> handle_simple_irq irqdesc -> irq_desc irqchip -> irq_chip Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Initial blind fixup for arm for irq changesLinus Torvalds2006-10-06
| | | | | | | Untested, but this should fix up the bulk of the totally mechanical issues, and should make the actual detail fixing easier. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3739/1: genirq updates: irq_chip, add and use irq_chip.nameDavid Brownell2006-08-01
| | | | | | | | | | | | | | | | | | | Patch from David Brownell ARM genirq cleanups/updates: - Start switching platforms to newer APIs * use "irq_chip" name, not "irqchip" * providing irq_chip.name - Show irq_chip.name in /proc/interrupts, like on x86. This update a bit more than half of the ARM code. The irq_chip.name values were chosen to match docs (if I have them) or be otherwise obvious ("FPGA", "CPLD", or matching the code). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3672/1: PXA: don't probe output GPIOs for interruptGuennadi Liakhovetski2006-06-28
| | | | | | | | | | Patch from Guennadi Liakhovetski Currently probe_irq_on() on PXA will silently reconfigure all output GPIOs, that are not configured as alternate functions, for input. Avoid that. Upon CPU reset all GPIOs are configured as inputs, so, if a GPIO is configured as output, it has been done so intentionally. Signed-off-by: G. Liakhovetski <gl@dsa-ac.de> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Wrap calls to descriptor handlersRussell King2005-09-04
| | | | | | | | | | This is part of Thomas Gleixner's generic IRQ patch, which converts ARM to use the generic IRQ subsystem. Here, we wrap calls to desc->handler() in an inline function, desc_handle_irq(). This reduces the size of Thomas' patch since the changes become more localised. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Change irq_chip wake/type methods to set_wake/set_typeRussell King2005-09-04
| | | | | | | | This is part of Thomas Gleixner's generic IRQ patch, which converts ARM to use the generic IRQ subsystem. Here, we rename two of the irq_chip methods - wake becomes set_wake, and type becomes set_type. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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