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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-03-09 11:37:32 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2021-03-26 14:56:18 +0100 |
| commit | 944f4b0af9ca0d203ebc0d1426218af372d2d995 (patch) | |
| tree | 6e40790b4ff115e788a5a75115254fc452748fb0 /drivers/gpio | |
| parent | 67196fea0fcef92b25608882f62f3985bc59f1fe (diff) | |
| download | linux-backports-944f4b0af9ca0d203ebc0d1426218af372d2d995.tar.gz linux-backports-944f4b0af9ca0d203ebc0d1426218af372d2d995.tar.bz2 linux-backports-944f4b0af9ca0d203ebc0d1426218af372d2d995.zip | |
gpiolib: Unify the checks on fwnode type
We have (historically) different approaches how we identify the type
of a given fwnode. Let's standardize them across the library code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 6367646dce83..14d79c166124 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -3684,11 +3684,12 @@ EXPORT_SYMBOL_GPL(fwnode_gpiod_get_index); */ int gpiod_count(struct device *dev, const char *con_id) { + const struct fwnode_handle *fwnode = dev ? dev_fwnode(dev) : NULL; int count = -ENOENT; - if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node) + if (is_of_node(fwnode)) count = of_gpio_get_count(dev, con_id); - else if (IS_ENABLED(CONFIG_ACPI) && dev && ACPI_HANDLE(dev)) + else if (is_acpi_node(fwnode)) count = acpi_gpio_count(dev, con_id); if (count < 0) @@ -3826,18 +3827,17 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev, int ret; /* Maybe we have a device name, maybe not */ const char *devname = dev ? dev_name(dev) : "?"; + const struct fwnode_handle *fwnode = dev ? dev_fwnode(dev) : NULL; dev_dbg(dev, "GPIO lookup for consumer %s\n", con_id); - if (dev) { - /* Using device tree? */ - if (IS_ENABLED(CONFIG_OF) && dev->of_node) { - dev_dbg(dev, "using device tree for GPIO lookup\n"); - 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); - } + /* Using device tree? */ + if (is_of_node(fwnode)) { + dev_dbg(dev, "using device tree for GPIO lookup\n"); + desc = of_find_gpio(dev, con_id, idx, &lookupflags); + } else if (is_acpi_node(fwnode)) { + dev_dbg(dev, "using ACPI for GPIO lookup\n"); + desc = acpi_find_gpio(dev, con_id, idx, &flags, &lookupflags); } /* @@ -3921,9 +3921,6 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode, struct gpio_desc *desc = ERR_PTR(-ENODEV); int ret; - if (!fwnode) - return ERR_PTR(-EINVAL); - if (is_of_node(fwnode)) { desc = gpiod_get_from_of_node(to_of_node(fwnode), propname, index, @@ -3939,7 +3936,8 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode, acpi_gpio_update_gpiod_flags(&dflags, &info); acpi_gpio_update_gpiod_lookup_flags(&lflags, &info); - } + } else + return ERR_PTR(-EINVAL); /* Currently only ACPI takes this path */ ret = gpiod_request(desc, label); |