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gpio: acpi: Override GPIO initialization flags

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This allows ACPI GPIO code to modify flags based on
ACPI GpioIo() / GpioInt() resources.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko
2017-05-23 20:03:23 +03:00
committed by Linus Walleij
parent 2eca25af05
commit a31f5c3a68
3 changed files with 67 additions and 6 deletions
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8
drivers/gpio/gpiolib.c
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@@ -3286,7 +3286,7 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
desc = of_find_gpio(dev, con_id, idx, &lookupflags);
} else if (ACPI_COMPANION(dev)) {
dev_dbg(dev, "using ACPI for GPIO lookup\n");
desc = acpi_find_gpio(dev, con_id, idx, flags, &lookupflags);
desc = acpi_find_gpio(dev, con_id, idx, &flags, &lookupflags);
}
}
@@ -3367,8 +3367,12 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
struct acpi_gpio_info info;
desc = acpi_node_get_gpiod(fwnode, propname, index, &info);
if (!IS_ERR(desc))
if (!IS_ERR(desc)) {
active_low = info.polarity == GPIO_ACTIVE_LOW;
ret = acpi_gpio_update_gpiod_flags(&dflags, info.flags);
if (ret)
pr_debug("Override GPIO initialization flags\n");
}
}
if (IS_ERR(desc))