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authorOlof Johansson <olof@lixom.net>2014-01-02 11:45:27 -0800
committerOlof Johansson <olof@lixom.net>2014-01-02 11:45:27 -0800
commita7dedb4fead89f88255862a9bc46f4c7ec094c2e (patch)
treed07b09522364b895dc91ccd2d057668d2fa692c5 /arch/arm/mach-footbridge/ebsa285.c
parent9dc9b8e51f95fce0cc3d50ef80402203d2dcd68a (diff)
parent6075a8b2b6c32ddcb99b85189ae41ab2903e560f (diff)
Merge tag 'davinci-for-v3.14/gpio' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers
From Sekhar Nori: DaVinci GPIO driver updates --------------------------- This pull request contains updates to DaVinci GPIO driver and the resultant platform code changes. The updates include DT-conversion and changes to make the driver cross-platform ready. * tag 'davinci-for-v3.14/gpio' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: gpio: davinci: don't create irq_domain in case of unbanked irqs gpio: davinci: use chained_irq_enter/chained_irq_exit API gpio: davinci: add OF support gpio: davinci: remove unused variable intc_irq_num gpio: davinci: convert to use irqdomain support. gpio: introduce GPIO_DAVINCI kconfig option gpio: davinci: get rid of DAVINCI_N_GPIO gpio: davinci: use {readl|writel}_relaxed() instead of __raw_* Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-footbridge/ebsa285.c')
-rw-r--r--arch/arm/mach-footbridge/ebsa285.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c
index b08243500e2e..1a7235fb52ac 100644
--- a/arch/arm/mach-footbridge/ebsa285.c
+++ b/arch/arm/mach-footbridge/ebsa285.c
@@ -30,21 +30,24 @@ static const struct {
const char *name;
const char *trigger;
} ebsa285_leds[] = {
- { "ebsa285:amber", "heartbeat", },
- { "ebsa285:green", "cpu0", },
+ { "ebsa285:amber", "cpu0", },
+ { "ebsa285:green", "heartbeat", },
{ "ebsa285:red",},
};
+static unsigned char hw_led_state;
+
static void ebsa285_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
struct ebsa285_led *led = container_of(cdev,
struct ebsa285_led, cdev);
- if (b != LED_OFF)
- *XBUS_LEDS |= led->mask;
+ if (b == LED_OFF)
+ hw_led_state |= led->mask;
else
- *XBUS_LEDS &= ~led->mask;
+ hw_led_state &= ~led->mask;
+ *XBUS_LEDS = hw_led_state;
}
static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
@@ -52,18 +55,19 @@ static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
struct ebsa285_led *led = container_of(cdev,
struct ebsa285_led, cdev);
- return (*XBUS_LEDS & led->mask) ? LED_FULL : LED_OFF;
+ return hw_led_state & led->mask ? LED_OFF : LED_FULL;
}
static int __init ebsa285_leds_init(void)
{
int i;
- if (machine_is_ebsa285())
+ if (!machine_is_ebsa285())
return -ENODEV;
- /* 3 LEDS All ON */
- *XBUS_LEDS |= XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED;
+ /* 3 LEDS all off */
+ hw_led_state = XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED;
+ *XBUS_LEDS = hw_led_state;
for (i = 0; i < ARRAY_SIZE(ebsa285_leds); i++) {
struct ebsa285_led *led;