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gpio: dwapb: fix bgpio usage 

The DW APB GPIO driver uses the generic GPIO library gpio-mmio,
and initialize the flags as "false", which should be 0.

When no flags are given, the native endianness is used to access
the MMIO registers, and the pin2mask() call can simply be
converted to a BIT() call, as per the default pin2mask()
implementation in gpio-mmio.c.

Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Hoan Tran <hotran@apm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2017-10-20 12:26:51 +02:00
parent dbe776c2ca
commit d97a1b5688
1 changed files with 2 additions and 2 deletions
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4
drivers/gpio/gpio-dwapb.c
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@ -320,7 +320,7 @@ static int dwapb_gpio_set_debounce(struct gpio_chip *gc,
struct dwapb_gpio_port *port = gpiochip_get_data(gc);
struct dwapb_gpio *gpio = port->gpio;
unsigned long flags, val_deb;
unsigned long mask = gc->pin2mask(gc, offset);
unsigned long mask = BIT(offset);
spin_lock_irqsave(&gc->bgpio_lock, flags);
@ -482,7 +482,7 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
(pp->idx * GPIO_SWPORT_DDR_SIZE);
err = bgpio_init(&port->gc, gpio->dev, 4, dat, set, NULL, dirout,
NULL, false);
NULL, 0);
if (err) {
dev_err(gpio->dev, "failed to init gpio chip for port%d\n",
port->idx);