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* MIPS: rb532: use gpiochip data pointerLinus Walleij2016-02-191-6/+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: linux-mips@linux-mips.org Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* MIPS: RB532: Be sure to clamp return valueLinus Walleij2016-01-241-1/+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. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: linux-mips@linux-mips.org Cc: linux-gpio@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11924/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Remove all the uses of custom gpio.hAlban Bedel2015-09-031-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently CONFIG_ARCH_HAVE_CUSTOM_GPIO_H is defined for all MIPS machines, and each machine type provides its own gpio.h. However only a handful really implement the GPIO API, most just forward everythings to gpiolib. The Alchemy machine is notable as it provides a system to allow implementing the GPIO API at the board level. But it is not used by any board currently supported, so it can also be removed. For most machine types we can just remove the custom gpio.h, as well as the custom wrappers if some exists. Some of the code found in the wrappers must be moved to the respective GPIO driver. A few more fixes are need in some drivers as they rely on linux/gpio.h to provides some machine specific definitions, or used asm/gpio.h instead of linux/gpio.h for the gpio API. Signed-off-by: Alban Bedel <albeu@free.fr> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Tejun Heo <tj@kernel.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Florian Fainelli <florian@openwrt.org> Cc: Manuel Lauss <manuel.lauss@gmail.com> Cc: Joe Perches <joe@perches.com> Cc: Daniel Walter <dwalter@google.com> Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: Huacai Chen <chenhc@lemote.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Varka Bhadram <varkabhadram@gmail.com> Cc: Masanari Iida <standby24x7@gmail.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Michael Buesch <m@bues.ch> Cc: abdoulaye berthe <berthe.ab@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: linux-ide@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: netdev@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10828/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Remove useless parenthesesRalf Baechle2014-11-241-1/+1
| | | | | | | | | | | | | | | Based on the spatch @@ expression e; @@ - return (e); + return e; with heavy hand editing because some of the changes are either whitespace or identation only or result in excessivly long lines. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Whitespace cleanup.Ralf Baechle2013-02-011-4/+4
| | | | | | | | Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* mips: add export.h to files using EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | | Or else we get lots of variations on this: arch/mips/pci/pci.c:330: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' scattered throughout the build. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* MIPS: RB532: Fix iomap resource size miscalculation.Ralf Baechle2011-05-181-1/+1
| | | | | | | | This is the MIPS portion of Joe Perches <joe@perches.com>'s https://patchwork.linux-mips.org/patch/2172/ which seems to have been lost in time and space. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Export rb532_gpio_set_func()Phil Sutter2009-01-301-2/+3
| | | | | | | | | | This kernel symbol provides a way for drivers to switch on alternate function for a certain GPIO pin. Turning it off is done implicitly when changing the GPIO direction, as that would be fixed when using the given pin als alternate function. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Remove {get,set}_434_reg()Phil Sutter2009-01-301-27/+0
| | | | | | | | These kernel symbols are unused. Also, since dev3 init has been moved to devices.c, set_434_reg() breaks compiling as it uses dev3. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Move dev3 init code to devices.cPhil Sutter2009-01-301-39/+0
| | | | | | | | | This code doesn't belong to gpio.c, as it's completely unrelated to GPIO. As dev1 and dev2 init code is in devices.c, it seems to be a more adequate place. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Fix set_latch_u5()Phil Sutter2009-01-301-1/+1
| | | | | | | | | The data to be written is just a byte, so use writeb instead of writel. Also, dev3.base contains the address, not the data so referencing here is wrong. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Fix init of rb532_dev3_ctl_resPhil Sutter2009-01-301-2/+3
| | | | | | | | This register just contains the address of the actual resource, so initialisation has to be the same as cf_slot0_res and nand_slot0_res. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: remove useless CF GPIO initialisationPhil Sutter2009-01-301-6/+0
| | | | | | | | | | | | As the pata-rb532-cf driver calls gpio_direction_input(), the calls to rb532_gpio_set_func() and rb532_gpio_direction_input() are not needed since the alternate function is automatically being disabled when changing the GPIO pin direction. The later two calls to rb532_gpio_set_{ilevel,istat}() are implicitly being done by the IRQ initialisation of pata-rb532-cf. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Auto disable GPIO alternate functionPhil Sutter2009-01-301-4/+4
| | | | | | | | | | When a driver calls gpio_set_direction_{input,output}(), it obviously doesn't want the alternate function for that pin to be active (as the direction would not matter in that case). This patch ensures alternate function is disabled when the direction is being changed. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Fix bit swapping in rb532_set_bit()Phil Sutter2009-01-301-4/+2
| | | | | | | | | | The algorithm works unconditionally. If bitval is one, the first line is a no op and the second line sets the bit at offset position. Vice versa, if bitval is zero, the first line clears the bit at offset position and the second line is a no op. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Provide functions for gpio configurationPhil Sutter2008-11-201-120/+73
| | | | | | | | | | As gpiolib doesn't support pin multiplexing, it provides no way to access the GPIOFUNC register. Also there is no support for setting interrupt status and level. These functions provide access to them and are needed by the CompactFlash driver. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Set gpio interrupt status and level for CompactFlashFlorian Fainelli2008-10-271-0/+4
| | | | | | | | This patch sets the correct interrupt status and level in order to get the CompactFlash adapter working. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Convert to GPIO libFlorian Fainelli2008-10-111-67/+161
| | | | | | | | This patch converts the rb532 code to use gpio library and register its gpio chip. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: replace raw volatile read with a readlFlorian Fainelli2008-10-111-1/+1
| | | | | | | | This patch replaces a raw read using volatiles with a readl. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Use physical addresses for gpio and device controller registersFlorian Fainelli2008-10-111-4/+4
| | | | | | | | | This patch fixes the misuse of virtual addresses for the GPIO and third device controller which would lead to problems while accessing ioremap'd registers. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] RB532: Flags are unsigned longAdrian Bunk2008-07-301-2/+3
| | | | | | | | | | | | | | | | | | | | A recent generic change now catches such bugs: <-- snip --> ... CC arch/mips/rb532/time.o cc1: warnings being treated as errors /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/rb532/time.c: In function 'plat_time_init': /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/rb532/time.c:55: error: comparison of distinct pointer types lacks a cast /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/rb532/time.c:66: error: comparison of distinct pointer types lacks a cast make[2]: *** [arch/mips/rb532/time.o] Error 1 <-- snip --> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Routerboard 532: Support for base systemRalf Baechle2008-07-201-0/+220
Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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