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Diffstat (limited to 'Documentation/driver-api/gpio/driver.rst')
| -rw-r--r-- | Documentation/driver-api/gpio/driver.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst index 65d708093b71..0fb57e298b41 100644 --- a/Documentation/driver-api/gpio/driver.rst +++ b/Documentation/driver-api/gpio/driver.rst @@ -538,8 +538,8 @@ these helpers, we can set .irq.need_valid_mask of the gpiochip before devm_gpiochip_add_data() or gpiochip_add_data() is called. This allocates an .irq.valid_mask with as many bits set as there are GPIO lines in the chip, each bit representing line 0..n-1. Drivers can exclude GPIO lines by clearing bits -from this mask. The mask must be filled in before gpiochip_irqchip_add() or -gpiochip_irqchip_add_nested() is called. +from this mask. The mask can be filled in the init_valid_mask() callback +that is part of the struct gpio_irq_chip. To use the helpers please keep the following in mind: |