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authorOlof Johansson <olof@lixom.net>2012-05-09 23:51:32 -0700
committerOlof Johansson <olof@lixom.net>2012-05-09 23:51:32 -0700
commitbf98a6eaa9964fef49f186834713bfc57d16ede1 (patch)
tree46dc9e802c90fa7d6854f19f829945ea9bfb1bc8 /drivers/gpio
parentd48b97b403d23f6df0b990cee652bdf9a52337a3 (diff)
parent22bfe102c0c39f0bac24950b875e7bfdeb329dd9 (diff)
Merge branch 'for-3.5/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/dt2
By Stephen Warren (29) and others via Stephen Warren * 'for-3.5/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (43 commits) ARM: dt: tegra trimslice: add support for audio ARM: dt: tegra trimslice: enable SDHCI1 controller ARM: dt: tegra trimslice: add RTC I2C device ARM: dt: tegra seaboard: add i2c devices ARM: dt: tegra seaboard: configure I2C2 pinmux ARM: dt: tegra seaboard: fix I2C2 SCL rate ARM: dt: tegra: enable als and proximity sensor + pinctrl mergebase branch The pinctrl mergebase branch merge conflicts in drivers/pinctrl/core.c that were resolved. Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-tegra.c39
1 files changed, 21 insertions, 18 deletions
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 12f349b3830d..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)
@@ -224,6 +238,9 @@ static int tegra_gpio_irq_set_type(struct irq_data *d, unsigned int type)
spin_unlock_irqrestore(&bank->lvl_lock[port], flags);
+ tegra_gpio_mask_write(GPIO_MSK_OE(gpio), gpio, 0);
+ tegra_gpio_enable(gpio);
+
if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
__irq_set_handler_locked(d->irq, handle_level_irq);
else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
@@ -490,20 +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>