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
  ...

1 files changed, 12 insertions, 12 deletions

diff --git a/drivers/gpio/gpio-104-idio-16.c b/drivers/gpio/gpio-104-idio-16.c
index 7053cf736648..5281e1cedb01 100644
--- a/drivers/gpio/gpio-104-idio-16.c
+++ b/drivers/gpio/gpio-104-idio-16.c
@@ -50,7 +50,7 @@ MODULE_PARM_DESC(irq, "ACCES 104-IDIO-16 interrupt line numbers");
  */
 struct idio_16_gpio {
 	struct gpio_chip chip;
-	spinlock_t lock;
+	raw_spinlock_t lock;
 	unsigned long irq_mask;
 	unsigned base;
 	unsigned out_state;
@@ -99,7 +99,7 @@ static void idio_16_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	if (offset > 15)
 		return;
 
-	spin_lock_irqsave(&idio16gpio->lock, flags);
+	raw_spin_lock_irqsave(&idio16gpio->lock, flags);
 
 	if (value)
 		idio16gpio->out_state |= mask;
@@ -111,7 +111,7 @@ static void idio_16_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	else
 		outb(idio16gpio->out_state, idio16gpio->base);
 
-	spin_unlock_irqrestore(&idio16gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&idio16gpio->lock, flags);
 }
 
 static void idio_16_gpio_set_multiple(struct gpio_chip *chip,
@@ -120,7 +120,7 @@ static void idio_16_gpio_set_multiple(struct gpio_chip *chip,
 	struct idio_16_gpio *const idio16gpio = gpiochip_get_data(chip);
 	unsigned long flags;
 
-	spin_lock_irqsave(&idio16gpio->lock, flags);
+	raw_spin_lock_irqsave(&idio16gpio->lock, flags);
 
 	idio16gpio->out_state &= ~*mask;
 	idio16gpio->out_state |= *mask & *bits;
@@ -130,7 +130,7 @@ static void idio_16_gpio_set_multiple(struct gpio_chip *chip,
 	if ((*mask >> 8) & 0xFF)
 		outb(idio16gpio->out_state >> 8, idio16gpio->base + 4);
 
-	spin_unlock_irqrestore(&idio16gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&idio16gpio->lock, flags);
 }
 
 static void idio_16_irq_ack(struct irq_data *data)
@@ -147,11 +147,11 @@ static void idio_16_irq_mask(struct irq_data *data)
 	idio16gpio->irq_mask &= ~mask;
 
 	if (!idio16gpio->irq_mask) {
-		spin_lock_irqsave(&idio16gpio->lock, flags);
+		raw_spin_lock_irqsave(&idio16gpio->lock, flags);
 
 		outb(0, idio16gpio->base + 2);
 
-		spin_unlock_irqrestore(&idio16gpio->lock, flags);
+		raw_spin_unlock_irqrestore(&idio16gpio->lock, flags);
 	}
 }
 
@@ -166,11 +166,11 @@ static void idio_16_irq_unmask(struct irq_data *data)
 	idio16gpio->irq_mask |= mask;
 
 	if (!prev_irq_mask) {
-		spin_lock_irqsave(&idio16gpio->lock, flags);
+		raw_spin_lock_irqsave(&idio16gpio->lock, flags);
 
 		inb(idio16gpio->base + 2);
 
-		spin_unlock_irqrestore(&idio16gpio->lock, flags);
+		raw_spin_unlock_irqrestore(&idio16gpio->lock, flags);
 	}
 }
 
@@ -201,11 +201,11 @@ static irqreturn_t idio_16_irq_handler(int irq, void *dev_id)
 	for_each_set_bit(gpio, &idio16gpio->irq_mask, chip->ngpio)
 		generic_handle_irq(irq_find_mapping(chip->irqdomain, gpio));
 
-	spin_lock(&idio16gpio->lock);
+	raw_spin_lock(&idio16gpio->lock);
 
 	outb(0, idio16gpio->base + 1);
 
-	spin_unlock(&idio16gpio->lock);
+	raw_spin_unlock(&idio16gpio->lock);
 
 	return IRQ_HANDLED;
 }
@@ -249,7 +249,7 @@ static int idio_16_probe(struct device *dev, unsigned int id)
 	idio16gpio->base = base[id];
 	idio16gpio->out_state = 0xFFFF;
 
-	spin_lock_init(&idio16gpio->lock);
+	raw_spin_lock_init(&idio16gpio->lock);
 
 	err = devm_gpiochip_add_data(dev, &idio16gpio->chip, idio16gpio);
 	if (err) {