diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-04 22:05:32 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-04 22:05:32 +0300 |
| commit | 2bd80401743568ced7d303b008ae5298ce77e695 (patch) | |
| tree | d70278682fca619f7d842faa7c5a5bdce5016cfa /drivers/gpio/gpio-pl061.c | |
| parent | 99a7583de5ffd5cd82c407aad32bcbdeea09155b (diff) | |
| parent | b86c86aa9805b25ee70071d084e618b2c40641b5 (diff) | |
| download | linux-2bd80401743568ced7d303b008ae5298ce77e695.tar.xz | |
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-pl061.c')
| -rw-r--r-- | drivers/gpio/gpio-pl061.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 0a6bfd2b06e5..3d3d6b6645a7 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -50,7 +50,7 @@ struct pl061_context_save_regs { #endif struct pl061 { - spinlock_t lock; + raw_spinlock_t lock; void __iomem *base; struct gpio_chip gc; @@ -74,11 +74,11 @@ static int pl061_direction_input(struct gpio_chip *gc, unsigned offset) unsigned long flags; unsigned char gpiodir; - spin_lock_irqsave(&pl061->lock, flags); + raw_spin_lock_irqsave(&pl061->lock, flags); gpiodir = readb(pl061->base + GPIODIR); gpiodir &= ~(BIT(offset)); writeb(gpiodir, pl061->base + GPIODIR); - spin_unlock_irqrestore(&pl061->lock, flags); + raw_spin_unlock_irqrestore(&pl061->lock, flags); return 0; } @@ -90,7 +90,7 @@ static int pl061_direction_output(struct gpio_chip *gc, unsigned offset, unsigned long flags; unsigned char gpiodir; - spin_lock_irqsave(&pl061->lock, flags); + raw_spin_lock_irqsave(&pl061->lock, flags); writeb(!!value << offset, pl061->base + (BIT(offset + 2))); gpiodir = readb(pl061->base + GPIODIR); gpiodir |= BIT(offset); @@ -101,7 +101,7 @@ static int pl061_direction_output(struct gpio_chip *gc, unsigned offset, * a gpio pin before configuring it in OUT mode. */ writeb(!!value << offset, pl061->base + (BIT(offset + 2))); - spin_unlock_irqrestore(&pl061->lock, flags); + raw_spin_unlock_irqrestore(&pl061->lock, flags); return 0; } @@ -143,7 +143,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger) } - spin_lock_irqsave(&pl061->lock, flags); + raw_spin_lock_irqsave(&pl061->lock, flags); gpioiev = readb(pl061->base + GPIOIEV); gpiois = readb(pl061->base + GPIOIS); @@ -203,7 +203,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger) writeb(gpioibe, pl061->base + GPIOIBE); writeb(gpioiev, pl061->base + GPIOIEV); - spin_unlock_irqrestore(&pl061->lock, flags); + raw_spin_unlock_irqrestore(&pl061->lock, flags); return 0; } @@ -235,10 +235,10 @@ static void pl061_irq_mask(struct irq_data *d) u8 mask = BIT(irqd_to_hwirq(d) % PL061_GPIO_NR); u8 gpioie; - spin_lock(&pl061->lock); + raw_spin_lock(&pl061->lock); gpioie = readb(pl061->base + GPIOIE) & ~mask; writeb(gpioie, pl061->base + GPIOIE); - spin_unlock(&pl061->lock); + raw_spin_unlock(&pl061->lock); } static void pl061_irq_unmask(struct irq_data *d) @@ -248,10 +248,10 @@ static void pl061_irq_unmask(struct irq_data *d) u8 mask = BIT(irqd_to_hwirq(d) % PL061_GPIO_NR); u8 gpioie; - spin_lock(&pl061->lock); + raw_spin_lock(&pl061->lock); gpioie = readb(pl061->base + GPIOIE) | mask; writeb(gpioie, pl061->base + GPIOIE); - spin_unlock(&pl061->lock); + raw_spin_unlock(&pl061->lock); } /** @@ -268,9 +268,9 @@ static void pl061_irq_ack(struct irq_data *d) struct pl061 *pl061 = gpiochip_get_data(gc); u8 mask = BIT(irqd_to_hwirq(d) % PL061_GPIO_NR); - spin_lock(&pl061->lock); + raw_spin_lock(&pl061->lock); writeb(mask, pl061->base + GPIOIC); - spin_unlock(&pl061->lock); + raw_spin_unlock(&pl061->lock); } static int pl061_irq_set_wake(struct irq_data *d, unsigned int state) @@ -304,7 +304,7 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) if (IS_ERR(pl061->base)) return PTR_ERR(pl061->base); - spin_lock_init(&pl061->lock); + raw_spin_lock_init(&pl061->lock); if (of_property_read_bool(dev->of_node, "gpio-ranges")) { pl061->gc.request = gpiochip_generic_request; pl061->gc.free = gpiochip_generic_free; |