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gpio: stmpe: Fix forgotten refactoring

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We actually handle the gpio_irq_chip set-up properly
now despite what the comment says. Also assign this
pointer along with the rest of the gpio_irq_chip
setup code.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201019134429.65563-1-linus.walleij@linaro.org
This commit is contained in:
Linus Walleij 2020-10-19 15:44:29 +02:00
parent f1f37abbe6
commit 8aa1633505
2 changed files with 3 additions and 11 deletions
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4
Documentation/driver-api/gpio/driver.rst
View File

@ -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:

10
drivers/gpio/gpio-stmpe.c
View File

@ -474,15 +474,6 @@ static int stmpe_gpio_probe(struct platform_device *pdev)
stmpe_gpio->chip.parent = &pdev->dev;
stmpe_gpio->chip.of_node = np;
stmpe_gpio->chip.base = -1;
/*
* REVISIT: this makes sure the valid mask gets allocated and
* filled in when adding the gpio_chip, but the rest of the
* gpio_irqchip is still filled in using the old method
* in gpiochip_irqchip_add_nested() so clean this up once we
* get the gpio_irqchip to initialize while adding the
* gpio_chip also for threaded irqchips.
*/
stmpe_gpio->chip.irq.init_valid_mask = stmpe_init_irq_valid_mask;
if (IS_ENABLED(CONFIG_DEBUG_FS))
stmpe_gpio->chip.dbg_show = stmpe_dbg_show;
@ -520,6 +511,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev)
girq->default_type = IRQ_TYPE_NONE;
girq->handler = handle_simple_irq;
girq->threaded = true;
girq->init_valid_mask = stmpe_init_irq_valid_mask;
}
ret = gpiochip_add_data(&stmpe_gpio->chip, stmpe_gpio);