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path: root/drivers/gpio/gpio-omap.c
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2011-11-15Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-25/+34
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6: gpio: pca953x: propagate the errno from the chip_init functions gpio: pca953x: remove unneeded check for chip type gpio/omap: check return value from irq_alloc_generic_chip gpio/omap: replace MOD_REG_BIT macro with static inline
2011-10-27Merge branch 'gpio' of ↵Linus Torvalds1-1/+1
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits) ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h> ARM: 7104/1: plat-pxa: break out GPIO driver specifics ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h> ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h ARM: 7083/1: rewrite U300 GPIO to use gpiolib ARM: 7074/1: gpio: davinci: eliminate unused variable warnings ARM: 7063/1: Orion: gpio: add missing include of linux/types.h ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio ARM: 7057/1: mach-pnx4008: rename GPIO header ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h> ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem ARM: 7043/1: mach-ixp2000: rename GPIO header ... Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
2011-10-13gpio/omap: fix build error with certain OMAP1 configsJanusz Krzysztofik1-1/+1
With commit f64ad1a0e21a, "gpio/omap: cleanup _set_gpio_wakeup(), remove ifdefs", access to build time conditionally omitted 'suspend_wakeup' member of the 'gpio_bank' structure has been placed unconditionally in function _set_gpio_wakeup(), which is always built. This resulted in the driver compilation broken for certain OMAP1, i.e., non-OMAP16xx, configurations. Really required or not in previously excluded cases, define this structure member unconditionally as a fix. Tested with a custom OMAP1510 only configuration. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Kevin Hilman <khilman@ti.com> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-23gpio/omap: check return value from irq_alloc_generic_chipTodd Poynor1-0/+5
Ensure return value of irq_alloc_generic_chip() is checked before continuing on to use it. Signed-off-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-08-23gpio/omap: replace MOD_REG_BIT macro with static inlineKevin Hilman1-25/+29
This macro is ugly and confusing, especially since it passes in most arguments, but uses an implied 'base' from the caller. Replace it with an equivalent static inline. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-08-08ARM: gpio: omap: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King1-1/+1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-22Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-570/+153
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: (61 commits) gpio/mxc/mxs: fix build error introduced by the irq_gc_ack() renaming mcp23s08: add i2c support mcp23s08: isolate spi specific parts mcp23s08: get rid of setup/teardown callbacks gpio/tegra: dt: add binding for gpio polarity mcp23s08: remove unused work queue gpio/da9052: remove a redundant assignment for gpio->da9052 gpio/mxc: add device tree probe support ARM: mxc: use ARCH_NR_GPIOS to define gpio number gpio/mxc: get rid of the uses of cpu_is_mx() gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables gpio: Move mpc5200 gpio driver to drivers/gpio GPIO: DA9052 GPIO module v3 gpio/tegra: Use engineering names in DT compatible property of/gpio: Add new method for getting gpios under different property names gpio/dt: Refine GPIO device tree binding gpio/ml-ioh: fix off-by-one for displaying variable i in dev_err gpio/pca953x: Deprecate meaningless device-tree bindings gpio/pca953x: Remove dynamic platform data pointer gpio/pca953x: Fix IRQ support. ...
2011-06-16gpio/omap: cleanup show revision, remove cpu_is checks, display only onceKevin Hilman1-8/+6
Remove cpu_is_* checks from gpio_show_revision() by passing in the revision address offset from platform data. SoCs with no revision register (15xx, 7xx, and all MPUIOs) use -1 (actually, USHRT_MAX) to signify no register. While here, all GPIO banks are assumed to be the same revision, so fix show_revision() to only show the revision for the first bank it finds. This removes duplicate GPIO revision prints during boot. Thanks to Charulatha V <charu@ti.com> for finding/fixing a few -1s that were missed in the original patch. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: debounce remove SoC specific registers, use pdataKevin Hilman1-12/+3
Use register offsets passed in from pdata for accessing debounce registers. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: cleanup _set_gpio_wakeup(), remove ifdefsKevin Hilman1-34/+16
Make _set_gpio_wakeup() generic by removing ifdefs. Code for the various SoCs/bank-methods was already the same, except for the non-wakeup GPIO checking. But that flag is set on a per-SoC basis, so can be used for all SoCs. While here, use dev_err() and remove GPIO bank calculation assumption based on subtracting bank pointers. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: remove useless gpio_valid() & check_gpio() checksKevin Hilman1-45/+0
These functions are useless. They are only called in a few places, and where they are called, the GPIO has already been converted from an IRQ or masked, so these functions will never fail. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: convert MPUIO IRQ over to generic irq_chipKevin Hilman1-44/+30
MPUIO banks have their own dedicated IRQ chip interface, separate from the "normal" GPIO banks. Convert the MPUIO IRQ chip over to using the new generic IRQ chip interface. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: conslidate enable/disable of GPIO IRQs, remove ifdefsKevin Hilman1-99/+30
Cleanup GPIO IRQ enable/disable handling by removing SoC-specific Also split enable/disable IRQ into separate functions for better readability and also facilitate potentially moving to generic irq_chip in the future. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: consolidate IRQ status handling, remove #ifdefsKevin Hilman1-61/+5
Cleanup IRQ status handling by passing IRQ status register offsets via platform data. Cleans up clearing of GPIO IRQ status and GPIO ISR handler. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: consolidate direction, input, output, remove #ifdefsKevin Hilman1-200/+43
Add register offset fields to GPIO platform_data for registers. This patch adds registers that control direction, input and output data. Using these register offsets in the common driver allows removal of #ifdefs and greatly improves readability. Also create dedicated data out functions: one for banks with dedicated set/clear registers, and another for banks with a single mask register. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: remove get_gpio_bank()Charulatha V1-27/+2
use chip info to get the pointer to the struct gpio_bank for a given GPIO bank and remove get_gpio_bank(). Signed-off-by: Charulatha V <charu@ti.com>
2011-06-16gpio/omap: replace get_gpio_index() by using bank widthKevin Hilman1-25/+17
The get_gpio_index() function, littered with cpu_is_* checks can be easily replaced by using bitops based on the GPIO bank width. Do so. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: _get_gpio_irqbank_mask: replace hard-coded mask with bank->widthKevin Hilman1-7/+1
Replace hard-coded mask values with bank->width which is already coming from platform_data. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: move bank width into struct gpio_bankKevin Hilman1-7/+6
Rather than having a file-global bank_width variable, move it into struct gpio_bank so it can be bank-specific. Note the bank width is already passed per-bank via platform_data, so current code would be incorrect if any banks had different width. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: remove MPUIO handling from _clear_gpio_irqbank()Kevin Hilman1-6/+0
Remove the OMAP1 #ifdef and MPUIO special case for _clear_gpio_irqbank() The MPUIOs do not need a register access to ack/clear the IRQ status, since reading the IRQ status clears it. In addition, the MPUIO irq_chip has an empty ack method, so _clear_gpio_irqbank() is never used for MPUIOs. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: _clear_gpio_irqbank: fix flushing of posted writeKevin Hilman1-2/+1
In commit 78a1a6d3411de1a8b0dc1cb92754b5f12f251912 (ARM: OMAP4: Update the GPIO support) braces were mistakenly added to included the register read-back inside the cpu_is_* checking. Remove the braces, ensuring that a register read-back is done, even when the IRQSTATUS2 register is not written. Note that the register read-back might be IRQSTATUS1 or IRQSTATUS2 depending on the CPU, but a read-back of any register in that region will cause a flush of the posted writes. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap4: Fix missing interrupts during device wakeup due to IOPAD.Ambresh K1-2/+3
If gpio pins from bank[2-5] are marked as wakeup enable and if the wake is through gpio IO pad wakeup, then that wakeup gpio interrupt is lost. In the current implementation, GPIO driver stores the context of DATAIN of all the gpio in the bank. During GPIO resuming, it checks DATAIN with wakeup enabled pins of gpio bank. If there is status change, then manually toggle GPIO_LEVELDETECT to generate pseudo interrupt. Reported-by: Philippe Mazet <p-mazet@ti.com> Tested-by: Philippe Mazet <p-mazet@ti.com> Signed-off-by: Ambresh K <ambresh@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-06GPIO: OMAP: add locking around calls to _set_gpio_triggeringColin Cross1-0/+9
_set_gpio_triggering uses read-modify-write on bank registers, lock bank->lock around all calls to it to prevent register corruption if two cpus access gpios in the same bank at the same time. Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-06GPIO: OMAP: fix setting IRQWAKEN bits for OMAP4Colin Cross1-10/+2
Setting the IRQWAKEN bit was overwriting previous IRQWAKEN bits, causing only the last bit set to take effect, resulting in lost wakeups when the GPIO controller is in idle. Replace direct writes to IRQWAKEN with MOD_REG_BIT calls to perform a read-modify-write on the register. Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-06GPIO: OMAP: fix section mismatch warningsRussell King1-1/+1
WARNING: arch/arm/plat-omap/built-in.o(.devinit.text+0x46c): Section mismatch in reference from the function omap_gpio_probe() to the function .init.text:omap_gpio_chip_init() The function __devinit omap_gpio_probe() references a function __init omap_gpio_chip_init(). If omap_gpio_chip_init is only used by omap_gpio_probe then annotate omap_gpio_chip_init with a matching annotation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-05-27GPIO: OMAP: move to drivers/gpioKevin Hilman1-0/+2007
Move OMAP GPIO driver to drivers/gpio. Builds whenever CONFIG_ARCH_OMAP=y. Signed-off-by: Kevin Hilman <khilman@ti.com>
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