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| author |   Fabio Estevam <fabio.estevam@nxp.com> | 2017-07-19 23:35:28 -0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-28 16:55:47 +0200 |
| commit | 54ec602370c4c818a9e9d8c4ef2a68ff8126997c (patch) | |
| tree | 413dd1719a744017476386ec7aaa6afa459e16cb /drivers/misc | |
| parent | firmware: vpd: use memunmap instead of iounmap (diff) | |
| download | linux-dev-54ec602370c4c818a9e9d8c4ef2a68ff8126997c.tar.xz linux-dev-54ec602370c4c818a9e9d8c4ef2a68ff8126997c.zip | |
misc: eeprom_93xx46: Simplify the usage of gpiod API
Commit 3ca9b1ac28398c ("misc: eeprom_93xx46: Add support for a GPIO
'select' line.") introduced the optional usage of 'select-gpios'
by using the gpiod API in a convoluted way.
Rewrite the gpiod handling to make the code simpler.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/eeprom/eeprom_93xx46.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c index 94cc035aa841..38766968bfa2 100644 --- a/drivers/misc/eeprom/eeprom_93xx46.c +++ b/drivers/misc/eeprom/eeprom_93xx46.c @@ -377,8 +377,6 @@ static int eeprom_93xx46_probe_dt(struct spi_device *spi) struct device_node *np = spi->dev.of_node; struct eeprom_93xx46_platform_data *pd; u32 tmp; - int gpio; - enum of_gpio_flags of_flags; int ret; pd = devm_kzalloc(&spi->dev, sizeof(*pd), GFP_KERNEL); @@ -403,22 +401,14 @@ static int eeprom_93xx46_probe_dt(struct spi_device *spi) if (of_property_read_bool(np, "read-only")) pd->flags |= EE_READONLY; - gpio = of_get_named_gpio_flags(np, "select-gpios", 0, &of_flags); - if (gpio_is_valid(gpio)) { - unsigned long flags = - of_flags == OF_GPIO_ACTIVE_LOW ? GPIOF_ACTIVE_LOW : 0; + pd->select = devm_gpiod_get_optional(&spi->dev, "select", + GPIOD_OUT_LOW); + if (IS_ERR(pd->select)) + return PTR_ERR(pd->select); - ret = devm_gpio_request_one(&spi->dev, gpio, flags, - "eeprom_93xx46_select"); - if (ret) - return ret; - - pd->select = gpio_to_desc(gpio); - pd->prepare = select_assert; - pd->finish = select_deassert; - - gpiod_direction_output(pd->select, 0); - } + pd->prepare = select_assert; + pd->finish = select_deassert; + gpiod_direction_output(pd->select, 0); if (of_id->data) { const struct eeprom_93xx46_devtype_data *data = of_id->data; |