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  • linux-arm
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  • linux-iv
  • drivers
  • pinctrl
  • pinctrl-st.c
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  • Patrice Chotard's avatar
    pinctrl: st: add irq_request/release_resources callbacks · e855fa9a
    Patrice Chotard authored Mar 16, 2017
    
    
    When using GPIO as IRQ source, the GPIO must be configured
    in INPUT. Callbacks dedicated for this was missing in
    pinctrl-st driver.
    
    This fix the following kernel error when trying to lock a gpio
    as IRQ:
    
    [    7.521095] gpio gpiochip7: (PIO11): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ
    [    7.526018] gpio gpiochip7: (PIO11): unable to lock HW IRQ 6 for IRQ
    [    7.529405] genirq: Failed to request resources for 0-0053 (irq 81) on irqchip GPIO
    
    Signed-off-by: default avatarPatrice Chotard <patrice.chotard@st.com>
    Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
    e855fa9a