diff options
| author | Stephen Warren <swarren@nvidia.com> | 2012-02-18 01:04:55 -0700 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2012-04-18 10:26:38 -0600 |
| commit | 3e215d0a19c2a0c389bd9117573b6dd8e46f96a8 (patch) | |
| tree | a45a82fc3e26459c8146cbe933229344cefa8b70 /drivers/gpio | |
| parent | c61b3da0aca4cccb1dca757eb94e443faba4e88f (diff) | |
| download | linux-stable-3e215d0a19c2a0c389bd9117573b6dd8e46f96a8.tar.gz linux-stable-3e215d0a19c2a0c389bd9117573b6dd8e46f96a8.tar.bz2 linux-stable-3e215d0a19c2a0c389bd9117573b6dd8e46f96a8.zip | |
gpio: tegra: Hide tegra_gpio_enable/disable()
Recent pinctrl discussions concluded that gpiolib APIs should in fact do
whatever is required to mux a GPIO onto pins, by calling pinctrl APIs if
required. This change implements this for the Tegra GPIO driver, and removes
calls to the Tegra-specific APIs from drivers and board files.
Cc: Chris Ball <cjb@laptop.org>
Cc: linux-mmc@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Chris Ball <cjb@laptop.org> # for sdhci-tegra.c
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-tegra.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 4383a7205349..dc5184d57892 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -26,10 +26,10 @@ #include <linux/platform_device.h> #include <linux/module.h> #include <linux/irqdomain.h> +#include <linux/pinctrl/consumer.h> #include <asm/mach/irq.h> -#include <mach/gpio-tegra.h> #include <mach/iomap.h> #include <mach/suspend.h> @@ -108,18 +108,29 @@ static void tegra_gpio_mask_write(u32 reg, int gpio, int value) tegra_gpio_writel(val, reg); } -void tegra_gpio_enable(int gpio) +static void tegra_gpio_enable(int gpio) { tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 1); } EXPORT_SYMBOL_GPL(tegra_gpio_enable); -void tegra_gpio_disable(int gpio) +static void tegra_gpio_disable(int gpio) { tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 0); } EXPORT_SYMBOL_GPL(tegra_gpio_disable); +int tegra_gpio_request(struct gpio_chip *chip, unsigned offset) +{ + return pinctrl_request_gpio(offset); +} + +void tegra_gpio_free(struct gpio_chip *chip, unsigned offset) +{ + pinctrl_free_gpio(offset); + tegra_gpio_disable(offset); +} + static void tegra_gpio_set(struct gpio_chip *chip, unsigned offset, int value) { tegra_gpio_mask_write(GPIO_MSK_OUT(offset), offset, value); @@ -133,6 +144,7 @@ static int tegra_gpio_get(struct gpio_chip *chip, unsigned offset) static int tegra_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { tegra_gpio_mask_write(GPIO_MSK_OE(offset), offset, 0); + tegra_gpio_enable(offset); return 0; } @@ -141,6 +153,7 @@ static int tegra_gpio_direction_output(struct gpio_chip *chip, unsigned offset, { tegra_gpio_set(chip, offset, value); tegra_gpio_mask_write(GPIO_MSK_OE(offset), offset, 1); + tegra_gpio_enable(offset); return 0; } @@ -151,13 +164,14 @@ static int tegra_gpio_to_irq(struct gpio_chip *chip, unsigned offset) static struct gpio_chip tegra_gpio_chip = { .label = "tegra-gpio", + .request = tegra_gpio_request, + .free = tegra_gpio_free, .direction_input = tegra_gpio_direction_input, .get = tegra_gpio_get, .direction_output = tegra_gpio_direction_output, .set = tegra_gpio_set, .to_irq = tegra_gpio_to_irq, .base = 0, - .ngpio = TEGRA_NR_GPIOS, }; static void tegra_gpio_irq_ack(struct irq_data *d) @@ -493,20 +507,6 @@ static int __init tegra_gpio_init(void) } postcore_initcall(tegra_gpio_init); -void tegra_gpio_config(struct tegra_gpio_table *table, int num) -{ - int i; - - for (i = 0; i < num; i++) { - int gpio = table[i].gpio; - - if (table[i].enable) - tegra_gpio_enable(gpio); - else - tegra_gpio_disable(gpio); - } -} - #ifdef CONFIG_DEBUG_FS #include <linux/debugfs.h> |