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20 lines
620 B
Diff
20 lines
620 B
Diff
To avoid glitch during gpio initialisation, fetch gpio output
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registers values left by bootloader.
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Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
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---
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arch/mips/bcm63xx/gpio.c | 2 ++
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1 files changed, 2 insertions(+), 0 deletions(-)
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--- a/arch/mips/bcm63xx/gpio.c
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+++ b/arch/mips/bcm63xx/gpio.c
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@@ -125,6 +125,8 @@ static struct gpio_chip bcm63xx_gpio_chi
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int __init bcm63xx_gpio_init(void)
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{
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+ gpio_out_low = bcm_gpio_readl(GPIO_DATA_LO_REG);
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+ gpio_out_high = bcm_gpio_readl(GPIO_DATA_HI_REG);
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bcm63xx_gpio_chip.ngpio = bcm63xx_gpio_count();
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pr_info("registering %d GPIOs\n", bcm63xx_gpio_chip.ngpio);
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