diff options
Diffstat (limited to 'drivers/gpio/gpio-sa1100.c')
| -rw-r--r-- | drivers/gpio/gpio-sa1100.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c index 986eb3b231ac..1938ffa2f4f3 100644 --- a/drivers/gpio/gpio-sa1100.c +++ b/drivers/gpio/gpio-sa1100.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/arch/arm/mach-sa1100/gpio.c * * Generic SA-1100 GPIO handling - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/gpio/driver.h> #include <linux/init.h> @@ -15,6 +12,7 @@ #include <soc/sa1100/pwer.h> #include <mach/hardware.h> #include <mach/irqs.h> +#include <mach/generic.h> struct sa1100_gpio_chip { struct gpio_chip chip; @@ -45,18 +43,24 @@ static int sa1100_gpio_get(struct gpio_chip *chip, unsigned offset) BIT(offset); } -static void sa1100_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +static int sa1100_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) { int reg = value ? R_GPSR : R_GPCR; writel_relaxed(BIT(offset), sa1100_gpio_chip(chip)->membase + reg); + + return 0; } static int sa1100_get_direction(struct gpio_chip *chip, unsigned offset) { void __iomem *gpdr = sa1100_gpio_chip(chip)->membase + R_GPDR; - return !(readl_relaxed(gpdr) & BIT(offset)); + if (readl_relaxed(gpdr) & BIT(offset)) + return GPIO_LINE_DIRECTION_OUT; + + return GPIO_LINE_DIRECTION_IN; } static int sa1100_direction_input(struct gpio_chip *chip, unsigned offset) @@ -252,7 +256,7 @@ static void sa1100_gpio_handler(struct irq_desc *desc) } while (mask); } -static int sa1100_gpio_suspend(void) +static int sa1100_gpio_suspend(void *data) { struct sa1100_gpio_chip *sgc = &sa1100_gpio_chip; @@ -271,19 +275,23 @@ static int sa1100_gpio_suspend(void) return 0; } -static void sa1100_gpio_resume(void) +static void sa1100_gpio_resume(void *data) { sa1100_update_edge_regs(&sa1100_gpio_chip); } -static struct syscore_ops sa1100_gpio_syscore_ops = { +static const struct syscore_ops sa1100_gpio_syscore_ops = { .suspend = sa1100_gpio_suspend, .resume = sa1100_gpio_resume, }; +static struct syscore sa1100_gpio_syscore = { + .ops = &sa1100_gpio_syscore_ops, +}; + static int __init sa1100_gpio_init_devicefs(void) { - register_syscore_ops(&sa1100_gpio_syscore_ops); + register_syscore(&sa1100_gpio_syscore); return 0; } @@ -318,7 +326,7 @@ void __init sa1100_init_gpio(void) gpiochip_add_data(&sa1100_gpio_chip.chip, NULL); - sa1100_gpio_irqdomain = irq_domain_add_simple(NULL, + sa1100_gpio_irqdomain = irq_domain_create_simple(NULL, 28, IRQ_GPIO0, &sa1100_gpio_irqdomain_ops, sgc); |
