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authorDmitry Eremin-Solenikov <dbaryshkov@gmail.com>2013-11-26 11:10:10 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-12-12 23:00:56 +0000
commitd8eec82c176a87aebc823ceed2b7656e43f88b49 (patch)
treef7ec501782638911ad48b3c3c4b14b02269420f3 /arch
parent8bed576c1a81d620765ec96f7b4e80dedaef1bcf (diff)
downloadop-kernel-dev-d8eec82c176a87aebc823ceed2b7656e43f88b49.zip
op-kernel-dev-d8eec82c176a87aebc823ceed2b7656e43f88b49.tar.gz
ARM: 7900/1: sa1100: h3100: refactor IrDA GPIO handling
As GPIOs are going to move to platform device, there is no guarantee that they will be available at init_machine time. Request and free all GPIOs from IrDA startup/shutdown callbacks and not at init_machine time. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-sa1100/h3100.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/arm/mach-sa1100/h3100.c b/arch/arm/mach-sa1100/h3100.c
index 5b78c9f..daa27c4 100644
--- a/arch/arm/mach-sa1100/h3100.c
+++ b/arch/arm/mach-sa1100/h3100.c
@@ -89,6 +89,11 @@ static void __init h3100_map_io(void)
/*
* This turns the IRDA power on or off on the Compaq H3100
*/
+static struct gpio h3100_irda_gpio[] = {
+ { H3100_GPIO_IR_ON, GPIOF_OUT_INIT_LOW, "IrDA power" },
+ { H3100_GPIO_IR_FSEL, GPIOF_OUT_INIT_LOW, "IrDA fsel" },
+};
+
static int h3100_irda_set_power(struct device *dev, unsigned int state)
{
gpio_set_value(H3100_GPIO_IR_ON, state);
@@ -100,14 +105,24 @@ static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
}
+static int h3100_irda_startup(struct device *dev)
+{
+ return gpio_request_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
+}
+
+static void h3100_irda_shutdown(struct device *dev)
+{
+ return gpio_free_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
+}
+
static struct irda_platform_data h3100_irda_data = {
.set_power = h3100_irda_set_power,
.set_speed = h3100_irda_set_speed,
+ .startup = h3100_irda_startup,
+ .shutdown = h3100_irda_shutdown,
};
static struct gpio_default_state h3100_default_gpio[] = {
- { H3100_GPIO_IR_ON, GPIO_MODE_OUT0, "IrDA power" },
- { H3100_GPIO_IR_FSEL, GPIO_MODE_OUT0, "IrDA fsel" },
{ H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
{ H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
{ H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
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