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regulator: core: Request GPIO before creating sysfs entries
regulator_attr_is_visible (which is a .is_visible callback of regulator_dev_group attribute_grpup) checks rdev->ena_pin to decide if "status" file should be present in sysfs. This field is set at the end of regulator_ena_gpio_request so it has to be called before device_register() otherwise this test will always fail, causing "status" file to not be visible. Since regulator_attr_is_visible also tests for is_enabled() op, this problem is only visible for regulators that does not define this callback, like regulator-fixed.c. Signed-off-by: Krzysztof Adamski <krzysztof.adamski@tieto.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -3918,6 +3918,16 @@ regulator_register(const struct regulator_desc *regulator_desc,
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goto clean;
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}
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if ((config->ena_gpio || config->ena_gpio_initialized) &&
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gpio_is_valid(config->ena_gpio)) {
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ret = regulator_ena_gpio_request(rdev, config);
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if (ret != 0) {
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rdev_err(rdev, "Failed to request enable GPIO%d: %d\n",
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config->ena_gpio, ret);
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goto wash;
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}
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}
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/* register with sysfs */
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rdev->dev.class = ®ulator_class;
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rdev->dev.parent = dev;
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@ -3931,16 +3941,6 @@ regulator_register(const struct regulator_desc *regulator_desc,
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dev_set_drvdata(&rdev->dev, rdev);
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if ((config->ena_gpio || config->ena_gpio_initialized) &&
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gpio_is_valid(config->ena_gpio)) {
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ret = regulator_ena_gpio_request(rdev, config);
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if (ret != 0) {
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rdev_err(rdev, "Failed to request enable GPIO%d: %d\n",
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config->ena_gpio, ret);
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goto wash;
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}
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}
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/* set regulator constraints */
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if (init_data)
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constraints = &init_data->constraints;
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