From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Linus Walleij <linus.walleij@linaro.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org
Cc: Marc Zyngier <maz@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Thomas Gleixner <tglx@linutronix.de>,
"Rafael J. Wysocki" <rafael@kernel.org>
Subject: [PATCH v2 2/5] gpiolib: Unify the checks on fwnode type
Date: Thu, 4 Mar 2021 17:02:12 +0200 [thread overview]
Message-ID: <20210304150215.80652-3-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20210304150215.80652-1-andriy.shevchenko@linux.intel.com>
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>
---
drivers/gpio/gpiolib.c | 28 +++++++++++++---------------
1 file changed, 13 insertions(+), 15 deletions(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index adf55db080d8..484ac92903ab 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -3678,11 +3678,12 @@ EXPORT_SYMBOL_GPL(fwnode_gpiod_get_index);
*/
int gpiod_count(struct device *dev, const char *con_id)
{
+ const struct fwnode_handle *fwnode = dev_fwnode(dev);
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)
@@ -3820,18 +3821,17 @@ 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);
}
/*
@@ -3915,9 +3915,6 @@ 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,
@@ -3933,7 +3930,8 @@ 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);
--
2.30.1
next prev parent reply other threads:[~2021-03-04 15:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 15:02 [PATCH v2 0/5] gpiolib: switch to fwnode in the core Andy Shevchenko
2021-03-04 15:02 ` [PATCH v2 1/5] irqdomain: Introduce irq_domain_create_simple() API Andy Shevchenko
2021-03-04 18:29 ` Marc Zyngier
2021-03-04 20:13 ` Andy Shevchenko
2021-03-04 15:02 ` Andy Shevchenko [this message]
2021-03-04 15:47 ` [PATCH v2 2/5] gpiolib: Unify the checks on fwnode type Andy Shevchenko
2021-03-04 15:02 ` [PATCH v2 3/5] gpiolib: Move of_node operations to gpiolib-of and correct fwnode use Andy Shevchenko
2021-03-04 15:02 ` [PATCH v2 4/5] gpiolib: Introduce acpi_gpio_dev_init() and call it from core Andy Shevchenko
2021-03-04 15:02 ` [PATCH v2 5/5] gpiolib: Reuse device's fwnode to create IRQ domain Andy Shevchenko
2021-03-08 18:32 ` Rafael J. Wysocki
2021-03-08 18:52 ` Andy Shevchenko
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