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[Blackfin] arch:Fix BUG [#3876] pfbutton test for BTN3 on bf533 don't show complete info 

- Buttons on the BF533-STAMP board are not inverted
 - Fix spurious GPIO Interrupt caused during set irq_type for edge triggered interrupts

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Michael Hennerich 2008-02-02 16:17:52 +08:00 committed by Bryan Wu
parent a8c12385c2
commit f1bceb47b3
2 changed files with 16 additions and 12 deletions
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6
arch/blackfin/mach-bf533/boards/stamp.c
View File

@ -423,9 +423,9 @@ static struct platform_device bfin_pata_device = {
#include <linux/gpio_keys.h>
static struct gpio_keys_button bfin_gpio_keys_table[] = {
{BTN_0, GPIO_PF5, 1, "gpio-keys: BTN0"},
{BTN_1, GPIO_PF6, 1, "gpio-keys: BTN1"},
{BTN_2, GPIO_PF8, 1, "gpio-keys: BTN2"},
{BTN_0, GPIO_PF5, 0, "gpio-keys: BTN0"},
{BTN_1, GPIO_PF6, 0, "gpio-keys: BTN1"},
{BTN_2, GPIO_PF8, 0, "gpio-keys: BTN2"},
};
static struct gpio_keys_platform_data bfin_gpio_keys_data = {

22
arch/blackfin/mach-common/ints-priority.c
View File

@ -430,16 +430,8 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
return 0;
}
set_gpio_inen(gpionr, 0);
set_gpio_dir(gpionr, 0);
set_gpio_inen(gpionr, 1);
if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
gpio_edge_triggered[gpio_bank(gpionr)] |= gpio_bit(gpionr);
set_gpio_edge(gpionr, 1);
} else {
set_gpio_edge(gpionr, 0);
gpio_edge_triggered[gpio_bank(gpionr)] &= ~gpio_bit(gpionr);
}
if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
== (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
@ -452,6 +444,18 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
else
set_gpio_polar(gpionr, 0); /* high or rising edge denoted by zero */
if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
set_gpio_edge(gpionr, 1);
set_gpio_inen(gpionr, 1);
gpio_edge_triggered[gpio_bank(gpionr)] |= gpio_bit(gpionr);
set_gpio_data(gpionr, 0);
} else {
set_gpio_edge(gpionr, 0);
gpio_edge_triggered[gpio_bank(gpionr)] &= ~gpio_bit(gpionr);
set_gpio_inen(gpionr, 1);
}
SSYNC();
if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))