781f6d710d4482eab05cfaad50060a0ea8c0e4e0 |
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30-Jan-2014 |
Pawel Moll <pawel.moll@arm.com> |
gpio: generic: Add label to platform data When registering more than one platform device, it is useful to set the gpio chip label in the platform data. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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2b78f1e1389aef263071b9edf41c0980b092e601 |
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15-Mar-2013 |
Andreas Larsson <andreas@gaisler.com> |
gpio: gpio-generic: Add 16 and 32 bit big endian byte order support There is no general support for 64-bit big endian accesses, so that is left unsupported. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Acked-by: Anton Vorontsov <anton@enomsg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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3e11f7b840b4671213c66817294ad7dd0b572756 |
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19-May-2012 |
Shawn Guo <shawn.guo@linaro.org> |
gpio/generic: initialize basic_mmio_gpio shadow variables properly It fixes the issue in gpio-generic that commit fb14921 (gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables) manged to fix in gpio-mxc driver, so that other platform specific drivers do not suffer from the same problem over and over again. Changes since v1: * Turn the last parameter of bgpio_init() "bool big_endian" into "unsigned long flags" and give those really quirky hardwares a chance to tell that reg_set and reg_dir are unreadable. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> [grant.likely: Fix big-endian usage to explicitly set BBGPIOF_BIG_ENDIAN] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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4f5b04800a224aadb6cffcbbc3d3fa26e2367c7f |
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15-Sep-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
drivers/gpio/gpio-generic.c: fix build errors Building a kernel with hotplug disabled results in a link failure: `bgpio_remove' referenced in section `___ksymtab_gpl+bgpio_remove' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o This is because of bgpio_remove() is exported. It is illegal to export symbols which are discarded either at link time or as part of an init/exit section. Fix this by dropping the __devexit attributation from bgpio_remove(). Also drop the __devinit attributation from bgpio_init(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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e5ea3f12d41d96edf4ad9374db2b1725e457acec |
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10-Jun-2011 |
Jamie Iles <jamie@jamieiles.com> |
gpio/basic_mmio: add missing include of spinlock_types.h include/linux/basic_mmio_gpio.h uses a spinlock_t without including any of the spinlock headers resulting in this compiler warning. include/linux/basic_mmio_gpio.h:51:2: error: expected specifier-qualifier-list before 'spinlock_t' Explicitly include linux/spinlock_types.h to fix it. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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280df6b3c3ad777a91f1011cd98d50df891bfef8 |
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20-May-2011 |
Jamie Iles <jamie@jamieiles.com> |
basic_mmio_gpio: split into a gpio library and platform device Allow GPIO_BASIC_MMIO_CORE to be used to provide an accessor library for implementing GPIO drivers whilst abstracting the register access detail. Based on a patch from Anton Vorontsov[1] and adapted to allow bgpio_chip to be embedded in another structure. Changes since v1: - Register the gpio_chip in the platform device probe 1. https://lkml.org/lkml/2011/4/19/401 Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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924e7a9fc6da124588e27c611841d07047c157b4 |
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20-May-2011 |
Jamie Iles <jamie@jamieiles.com> |
basic_mmio_gpio: allow overriding number of gpio Some platforms may have a number of GPIO that is less than the register width of the peripheral. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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aeec56e331c6d2750de02ef34b305338305ca690 |
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28-Oct-2010 |
Anton Vorontsov <cbouatmailru@gmail.com> |
gpio: add driver for basic memory-mapped GPIO controllers The basic GPIO controllers may be found in various on-board FPGA and ASIC solutions that are used to control board's switches, LEDs, chip-selects, Ethernet/USB PHY power, etc. These controllers may not provide any means of pin setup (in/out/open drain). The driver supports: - 8/16/32/64 bits registers; - GPIO controllers with clear/set registers; - GPIO controllers with a single "data" register; - Big endian bits/GPIOs ordering (mostly used on PowerPC). Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: David Brownell <david-b@pacbell.net> Cc: Samuel Ortiz <sameo@linux.intel.com>, Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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