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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-04 12:05:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-04 12:05:32 -0700
commit2bd80401743568ced7d303b008ae5298ce77e695 (patch)
treed70278682fca619f7d842faa7c5a5bdce5016cfa /drivers/gpio/gpio-ws16c48.c
parent99a7583de5ffd5cd82c407aad32bcbdeea09155b (diff)
parentb86c86aa9805b25ee70071d084e618b2c40641b5 (diff)
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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-ws16c48.c')
-rw-r--r--drivers/gpio/gpio-ws16c48.c46
1 files changed, 23 insertions, 23 deletions
diff --git a/drivers/gpio/gpio-ws16c48.c b/drivers/gpio/gpio-ws16c48.c
index 901b5ccb032d..87d63695dfcf 100644
--- a/drivers/gpio/gpio-ws16c48.c
+++ b/drivers/gpio/gpio-ws16c48.c
@@ -51,7 +51,7 @@ struct ws16c48_gpio {
struct gpio_chip chip;
unsigned char io_state[6];
unsigned char out_state[6];
- spinlock_t lock;
+ raw_spinlock_t lock;
unsigned long irq_mask;
unsigned long flow_mask;
unsigned base;
@@ -73,13 +73,13 @@ static int ws16c48_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
const unsigned mask = BIT(offset % 8);
unsigned long flags;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
ws16c48gpio->io_state[port] |= mask;
ws16c48gpio->out_state[port] &= ~mask;
outb(ws16c48gpio->out_state[port], ws16c48gpio->base + port);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
return 0;
}
@@ -92,7 +92,7 @@ static int ws16c48_gpio_direction_output(struct gpio_chip *chip,
const unsigned mask = BIT(offset % 8);
unsigned long flags;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
ws16c48gpio->io_state[port] &= ~mask;
if (value)
@@ -101,7 +101,7 @@ static int ws16c48_gpio_direction_output(struct gpio_chip *chip,
ws16c48gpio->out_state[port] &= ~mask;
outb(ws16c48gpio->out_state[port], ws16c48gpio->base + port);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
return 0;
}
@@ -114,17 +114,17 @@ static int ws16c48_gpio_get(struct gpio_chip *chip, unsigned offset)
unsigned long flags;
unsigned port_state;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
/* ensure that GPIO is set for input */
if (!(ws16c48gpio->io_state[port] & mask)) {
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
return -EINVAL;
}
port_state = inb(ws16c48gpio->base + port);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
return !!(port_state & mask);
}
@@ -136,11 +136,11 @@ static void ws16c48_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
const unsigned mask = BIT(offset % 8);
unsigned long flags;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
/* ensure that GPIO is set for output */
if (ws16c48gpio->io_state[port] & mask) {
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
return;
}
@@ -150,7 +150,7 @@ static void ws16c48_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
ws16c48gpio->out_state[port] &= ~mask;
outb(ws16c48gpio->out_state[port], ws16c48gpio->base + port);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
}
static void ws16c48_gpio_set_multiple(struct gpio_chip *chip,
@@ -178,14 +178,14 @@ static void ws16c48_gpio_set_multiple(struct gpio_chip *chip,
iomask = mask[BIT_WORD(i)] & ~ws16c48gpio->io_state[port];
bitmask = iomask & bits[BIT_WORD(i)];
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
/* update output state data and set device gpio register */
ws16c48gpio->out_state[port] &= ~iomask;
ws16c48gpio->out_state[port] |= bitmask;
outb(ws16c48gpio->out_state[port], ws16c48gpio->base + port);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
/* prepare for next gpio register set */
mask[BIT_WORD(i)] >>= gpio_reg_size;
@@ -207,7 +207,7 @@ static void ws16c48_irq_ack(struct irq_data *data)
if (port > 2)
return;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
port_state = ws16c48gpio->irq_mask >> (8*port);
@@ -216,7 +216,7 @@ static void ws16c48_irq_ack(struct irq_data *data)
outb(port_state | mask, ws16c48gpio->base + 8 + port);
outb(0xC0, ws16c48gpio->base + 7);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
}
static void ws16c48_irq_mask(struct irq_data *data)
@@ -232,7 +232,7 @@ static void ws16c48_irq_mask(struct irq_data *data)
if (port > 2)
return;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
ws16c48gpio->irq_mask &= ~mask;
@@ -240,7 +240,7 @@ static void ws16c48_irq_mask(struct irq_data *data)
outb(ws16c48gpio->irq_mask >> (8*port), ws16c48gpio->base + 8 + port);
outb(0xC0, ws16c48gpio->base + 7);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
}
static void ws16c48_irq_unmask(struct irq_data *data)
@@ -256,7 +256,7 @@ static void ws16c48_irq_unmask(struct irq_data *data)
if (port > 2)
return;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
ws16c48gpio->irq_mask |= mask;
@@ -264,7 +264,7 @@ static void ws16c48_irq_unmask(struct irq_data *data)
outb(ws16c48gpio->irq_mask >> (8*port), ws16c48gpio->base + 8 + port);
outb(0xC0, ws16c48gpio->base + 7);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
}
static int ws16c48_irq_set_type(struct irq_data *data, unsigned flow_type)
@@ -280,7 +280,7 @@ static int ws16c48_irq_set_type(struct irq_data *data, unsigned flow_type)
if (port > 2)
return -EINVAL;
- spin_lock_irqsave(&ws16c48gpio->lock, flags);
+ raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
switch (flow_type) {
case IRQ_TYPE_NONE:
@@ -292,7 +292,7 @@ static int ws16c48_irq_set_type(struct irq_data *data, unsigned flow_type)
ws16c48gpio->flow_mask &= ~mask;
break;
default:
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
return -EINVAL;
}
@@ -300,7 +300,7 @@ static int ws16c48_irq_set_type(struct irq_data *data, unsigned flow_type)
outb(ws16c48gpio->flow_mask >> (8*port), ws16c48gpio->base + 8 + port);
outb(0xC0, ws16c48gpio->base + 7);
- spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
+ raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
return 0;
}
@@ -387,7 +387,7 @@ static int ws16c48_probe(struct device *dev, unsigned int id)
ws16c48gpio->chip.set_multiple = ws16c48_gpio_set_multiple;
ws16c48gpio->base = base[id];
- spin_lock_init(&ws16c48gpio->lock);
+ raw_spin_lock_init(&ws16c48gpio->lock);
err = devm_gpiochip_add_data(dev, &ws16c48gpio->chip, ws16c48gpio);
if (err) {