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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-04 21:05:32 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-04 21:05:32 +0200 |
commit | 2bd80401743568ced7d303b008ae5298ce77e695 (patch) | |
tree | d70278682fca619f7d842faa7c5a5bdce5016cfa /drivers/gpio/gpio-etraxfs.c | |
parent | Merge tag 'platform-drivers-x86-v4.12-1' of git://git.infradead.org/linux-pla... (diff) | |
parent | gpio: f7188x: Add a missing break (diff) | |
download | linux-2bd80401743568ced7d303b008ae5298ce77e695.tar.xz linux-2bd80401743568ced7d303b008ae5298ce77e695.zip |
Merge tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.12 kernel cycle.
Core changes:
- Return NULL from gpiod_get_optional() when GPIOLIB is disabled.
This was a much discussed change. It affects use cases where people
write drivers that might or might not be using GPIO resources. I
have decided that this is the lesser evil right now.
- Make gpiod_count() behave consistently across different hardware
descriptions.
- Fix the syntax around open drain/open source to not infer active
high/low semantics.
New drivers:
- A new single-register fixed-direction framework driver for hardware
that have lines controlled by a single register that just work in
one direction (out or in), including IRQ support.
- Support the Fintek F71889A GPIO SuperIO controller.
- Support the National NI 169445 MMIO GPIO.
- Support for the X-Gene derivative of the DWC GPIO controller
- Support for the Rohm BD9571MWV-M PMIC GPIO controller.
- Refactor the Gemini GPIO driver to a generic Faraday FTGPIO driver
and replace both the Gemini and the Moxa ART custom drivers with
this driver.
Driver improvements:
- A whole slew of drivers have their spinlocks chaned to raw
spinlocks as they provide irqchips, and thus we are progressing on
realtime compliance.
- Use devm_irq_alloc_descs() in a slew of drivers, getting managed
resources.
- Support for the embedded PWM controller inside the MVEBU driver.
- Debounce, open source and open drain support for the Aspeed driver.
- Misc smaller fixes like spelling and syntax and whatnot"
* tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
gpio: f7188x: Add a missing break
gpio: omap: return error if requested debounce time is not possible
gpio: Add ROHM BD9571MWV-M PMIC GPIO driver
gpio: gpio-wcove: fix GPIO IRQ status mask
gpio: DT bindings, move tca9554 from pcf857x to pca953x
gpio: move tca9554 from pcf857x to pca953x
gpio: arizona: Correct check whether the pin is an input
gpio: Add XRA1403 DTS binding documentation
dt-bindings: add exar to vendor prefixes list
gpio: gpio-wcove: fix irq pending status bit width
gpio: dwapb: use dwapb_read instead of readl_relaxed
gpio: aspeed: Add open-source and open-drain support
gpio: aspeed: Add debounce support
gpio: aspeed: dt: Add optional clocks property
gpio: aspeed: dt: Fix description alignment in bindings document
gpio: mvebu: Add limited PWM support
gpio: Use unsigned int for interrupt numbers
gpio: f7188x: Add F71889A GPIO support.
gpio: core: Decouple open drain/source flag with active low/high
gpio: arizona: Correct handling for reading input GPIOs
...
Diffstat (limited to 'drivers/gpio/gpio-etraxfs.c')
-rw-r--r-- | drivers/gpio/gpio-etraxfs.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/gpio/gpio-etraxfs.c b/drivers/gpio/gpio-etraxfs.c index a254d5b07b94..14c6aac26780 100644 --- a/drivers/gpio/gpio-etraxfs.c +++ b/drivers/gpio/gpio-etraxfs.c @@ -54,7 +54,7 @@ struct etraxfs_gpio_info; struct etraxfs_gpio_block { - spinlock_t lock; + raw_spinlock_t lock; u32 mask; u32 cfg; u32 pins; @@ -233,10 +233,10 @@ static void etraxfs_gpio_irq_mask(struct irq_data *d) struct etraxfs_gpio_block *block = chip->block; unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq); - spin_lock(&block->lock); + raw_spin_lock(&block->lock); block->mask &= ~BIT(grpirq); writel(block->mask, block->regs + block->info->rw_intr_mask); - spin_unlock(&block->lock); + raw_spin_unlock(&block->lock); } static void etraxfs_gpio_irq_unmask(struct irq_data *d) @@ -246,10 +246,10 @@ static void etraxfs_gpio_irq_unmask(struct irq_data *d) struct etraxfs_gpio_block *block = chip->block; unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq); - spin_lock(&block->lock); + raw_spin_lock(&block->lock); block->mask |= BIT(grpirq); writel(block->mask, block->regs + block->info->rw_intr_mask); - spin_unlock(&block->lock); + raw_spin_unlock(&block->lock); } static int etraxfs_gpio_irq_set_type(struct irq_data *d, u32 type) @@ -280,11 +280,11 @@ static int etraxfs_gpio_irq_set_type(struct irq_data *d, u32 type) return -EINVAL; } - spin_lock(&block->lock); + raw_spin_lock(&block->lock); block->cfg &= ~(0x7 << (grpirq * 3)); block->cfg |= (cfg << (grpirq * 3)); writel(block->cfg, block->regs + block->info->rw_intr_cfg); - spin_unlock(&block->lock); + raw_spin_unlock(&block->lock); return 0; } @@ -297,7 +297,7 @@ static int etraxfs_gpio_irq_request_resources(struct irq_data *d) unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq); int ret = -EBUSY; - spin_lock(&block->lock); + raw_spin_lock(&block->lock); if (block->group[grpirq]) goto out; @@ -316,7 +316,7 @@ static int etraxfs_gpio_irq_request_resources(struct irq_data *d) } out: - spin_unlock(&block->lock); + raw_spin_unlock(&block->lock); return ret; } @@ -327,10 +327,10 @@ static void etraxfs_gpio_irq_release_resources(struct irq_data *d) struct etraxfs_gpio_block *block = chip->block; unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq); - spin_lock(&block->lock); + raw_spin_lock(&block->lock); block->group[grpirq] = 0; gpiochip_unlock_as_irq(&chip->gc, d->hwirq); - spin_unlock(&block->lock); + raw_spin_unlock(&block->lock); } static struct irq_chip etraxfs_gpio_irq_chip = { @@ -391,7 +391,7 @@ static int etraxfs_gpio_probe(struct platform_device *pdev) if (!block) return -ENOMEM; - spin_lock_init(&block->lock); + raw_spin_lock_init(&block->lock); block->regs = regs; block->info = info; |