diff options
| author | Krzysztof Adamski <krzysztof.adamski@tieto.com> | 2016-02-22 11:24:00 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-02-22 13:51:05 +0300 |
| commit | daad134d66492a9f641163c94510549770b39657 (patch) | |
| tree | 3ac745f3cbc2b851ba6186667634ec0770cd2478 /drivers/regulator | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-daad134d66492a9f641163c94510549770b39657.tar.xz | |
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>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 744c9889f88d..3c987d76e684 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3918,6 +3918,16 @@ regulator_register(const struct regulator_desc *regulator_desc, goto clean; } + if ((config->ena_gpio || config->ena_gpio_initialized) && + gpio_is_valid(config->ena_gpio)) { + ret = regulator_ena_gpio_request(rdev, config); + if (ret != 0) { + rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", + config->ena_gpio, ret); + goto wash; + } + } + /* register with sysfs */ rdev->dev.class = ®ulator_class; rdev->dev.parent = dev; @@ -3931,16 +3941,6 @@ regulator_register(const struct regulator_desc *regulator_desc, dev_set_drvdata(&rdev->dev, rdev); - if ((config->ena_gpio || config->ena_gpio_initialized) && - gpio_is_valid(config->ena_gpio)) { - ret = regulator_ena_gpio_request(rdev, config); - if (ret != 0) { - rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", - config->ena_gpio, ret); - goto wash; - } - } - /* set regulator constraints */ if (init_data) constraints = &init_data->constraints; |