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stm32: make power led optional

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The spring board doesn't have one and we doesn't want to mess up with
that pin.
When the POWERLED task is not present, let's de-activate cleanly that
code.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BUG=chrome-os-partner:14324
TEST=make BOARD=spring (no power_led.o compiled)
make BOARD=snow (power_led.o compiled)
make BOARD=link && make BOARD=bds
run on Snow and see the power LED working

Change-Id: Ib44f5df54ec4fdee1863814e6c7052fd6620fee8
Reviewed-on: https://gerrit.chromium.org/gerrit/35272
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vincent Palatin
2012-10-11 09:01:20 -07:00
committed by Gerrit
parent 07aa700e92
commit fbc4c150d2
2 changed files with 8 additions and 1 deletions
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3
chip/stm32/build.mk
View File

@@ -9,11 +9,12 @@
# STM32 SoC family has a Cortex-M3 ARM core
CORE:=cortex-m
chip-y=dma.o gpio.o hwtimer.o power_led.o system.o uart.o
chip-y=dma.o gpio.o hwtimer.o system.o uart.o
chip-y+=jtag-$(CHIP_VARIANT).o clock-$(CHIP_VARIANT).o gpio-$(CHIP_VARIANT).o
chip-$(CONFIG_SPI)+=spi.o
chip-$(CONFIG_I2C)+=i2c.o
chip-$(CONFIG_TASK_WATCHDOG)+=watchdog.o
chip-$(CONFIG_TASK_KEYSCAN)+=keyboard_scan.o
chip-$(CONFIG_TASK_POWERLED)+=power_led.o
chip-$(CONFIG_FLASH)+=flash-$(CHIP_VARIANT).o
chip-$(CONFIG_ADC)+=adc.o

6
include/power_led.h
View File

@@ -31,10 +31,16 @@ enum powerled_config {
POWERLED_CONFIG_PWM,
};
#if defined(CONFIG_TASK_POWERLED) || defined(CONFIG_POWER_LED)
/* Set the power adapter LED to the specified color. */
int powerled_set(enum powerled_color color);
/* Set the power LED according to the specified state. */
void powerled_set_state(enum powerled_state state);
#else /* CONFIG_TASK_POWERLED */
static inline int powerled_set(enum powerled_color color) { return 0; }
static inline void powerled_set_state(enum powerled_state state) {}
#endif /* CONFIG_TASK_POWERLED */
#endif /* __CROS_EC_POWER_LED_H */