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Pending interrupt status is cleared by writing to the ISR, not the data reg.

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MFC after:	1 week
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ian 2014-07-10 14:06:18 +00:00
parent 437aa94f38
commit 1437f2a5d6
1 changed files with 1 additions and 1 deletions
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2
sys/arm/freescale/imx/imx51_gpio.c
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@ -355,7 +355,7 @@ imx51_gpio_intr(void *arg)
sc = arg;
input = READ4(sc, IMX_GPIO_ISR_REG);
value = input & READ4(sc, IMX_GPIO_IMR_REG);
WRITE4(sc, IMX_GPIO_DR_REG, input);
WRITE4(sc, IMX_GPIO_ISR_REG, input);
if (!value)
goto intr_done;