From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Aaro Koskinen <aaro.koskinen@iki.fi>,
Janusz Krzysztofik <jmkrzyszt@gmail.com>,
Tony Lindgren <tony@atomide.com>,
Russell King <linux@armlinux.org.uk>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@bgdev.pl>,
Dipen Patel <dipenp@nvidia.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Hans de Goede <hdegoede@redhat.com>,
Mark Gross <markgross@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-acpi@vger.kernel.org, timestamp@lists.linux.dev,
linux-tegra@vger.kernel.org, platform-driver-x86@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: [PATCH 07/21] gpiolib: provide gpio_device_get_base()
Date: Tue, 5 Sep 2023 20:52:55 +0200 [thread overview]
Message-ID: <20230905185309.131295-8-brgl@bgdev.pl> (raw)
In-Reply-To: <20230905185309.131295-1-brgl@bgdev.pl>
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Let's start adding getters for the opaque struct gpio_device. Start with
a function allowing to retrieve the base GPIO number.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
drivers/gpio/gpiolib.c | 13 +++++++++++++
include/linux/gpio/driver.h | 3 +++
2 files changed, 16 insertions(+)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 9637a79a9a60..9715bbc698e9 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -233,6 +233,19 @@ struct gpio_device *gpiod_to_device(struct gpio_desc *desc)
}
EXPORT_SYMBOL_GPL(gpiod_to_device);
+/**
+ * gpio_device_get_base() - Get the base GPIO number allocated by this device
+ * @gdev: GPIO device
+ *
+ * Returns:
+ * First GPIO number in the global GPIO numberspace for this device.
+ */
+int gpio_device_get_base(struct gpio_device *gdev)
+{
+ return gdev->base;
+}
+EXPORT_SYMBOL_GPL(gpio_device_get_base);
+
/* dynamic allocation of GPIOs, e.g. on a hotplugged device */
static int gpiochip_find_base(int ngpio)
{
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index e3747e730ed1..b68b3493b29d 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -780,6 +780,9 @@ void gpiochip_unlock_as_irq(struct gpio_chip *gc, unsigned int offset);
struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
struct gpio_device *gpiod_to_device(struct gpio_desc *desc);
+/* struct gpio_device getters */
+int gpio_device_get_base(struct gpio_device *gdev);
+
#else /* CONFIG_GPIOLIB */
#include <linux/err.h>
--
2.39.2
next prev parent reply other threads:[~2023-09-05 18:53 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-05 18:52 [PATCH 00/21] gpio: convert users to gpio_device_find() and remove gpiochip_find() Bartosz Golaszewski
2023-09-05 18:52 ` [PATCH 01/21] gpiolib: make gpio_device_get() and gpio_device_put() public Bartosz Golaszewski
2023-09-07 7:02 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 02/21] gpiolib: provide gpio_device_find() Bartosz Golaszewski
2023-09-06 14:10 ` Andy Shevchenko
2023-09-11 13:14 ` Bartosz Golaszewski
2023-09-07 7:05 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 03/21] gpiolib: provide gpio_device_find_by_label() Bartosz Golaszewski
2023-09-06 14:13 ` Andy Shevchenko
2023-09-07 7:06 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 04/21] gpiolib: provide gpio_device_get_desc() Bartosz Golaszewski
2023-09-06 14:15 ` Andy Shevchenko
2023-09-07 7:07 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 05/21] gpiolib: add support for scope-based management to gpio_device Bartosz Golaszewski
2023-09-07 7:09 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 06/21] gpiolib: provide gpiod_to_device() Bartosz Golaszewski
2023-09-06 14:17 ` Andy Shevchenko
2023-09-07 7:10 ` Linus Walleij
2023-09-05 18:52 ` Bartosz Golaszewski [this message]
2023-09-07 7:17 ` [PATCH 07/21] gpiolib: provide gpio_device_get_base() Linus Walleij
2023-09-07 7:57 ` Bartosz Golaszewski
2023-10-03 20:32 ` Dipen Patel
2023-09-05 18:52 ` [PATCH 08/21] gpio: acpi: provide acpi_gpio_device_free_interrupts() Bartosz Golaszewski
2023-09-06 7:10 ` Mika Westerberg
2023-09-05 18:52 ` [PATCH 09/21] gpiolib: reluctantly provide gpio_device_get_chip() Bartosz Golaszewski
2023-09-07 7:19 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 10/21] gpiolib: replace find_chip_by_name() with gpio_device_find_by_label() Bartosz Golaszewski
2023-09-06 14:23 ` Andy Shevchenko
2023-09-07 7:20 ` Linus Walleij
2023-09-05 18:52 ` [RFT PATCH 11/21] platform: x86: android-tablets: don't access GPIOLIB private members Bartosz Golaszewski
2023-09-06 13:01 ` Hans de Goede
2023-09-06 14:27 ` Bartosz Golaszewski
2023-09-09 14:17 ` Hans de Goede
2023-09-11 10:05 ` Andy Shevchenko
2023-09-05 18:53 ` [PATCH 12/21] hte: allow building modules with COMPILE_TEST enabled Bartosz Golaszewski
2023-09-07 7:22 ` Linus Walleij
2023-09-07 7:31 ` Bartosz Golaszewski
2023-09-05 18:53 ` [PATCH 13/21] hte: tegra194: improve the GPIO-related comment Bartosz Golaszewski
2023-09-07 7:24 ` Linus Walleij
2023-09-05 18:53 ` [RFT PATCH 14/21] hte: tegra194: don't access struct gpio_chip Bartosz Golaszewski
2023-09-06 14:47 ` Andy Shevchenko
2023-09-07 7:28 ` Linus Walleij
2023-10-04 12:00 ` Bartosz Golaszewski
2023-10-04 20:30 ` Dipen Patel
2023-10-04 20:33 ` Dipen Patel
2023-10-04 22:54 ` Dipen Patel
2023-10-04 23:51 ` Dipen Patel
2023-10-05 13:48 ` Bartosz Golaszewski
2023-10-05 18:12 ` Dipen Patel
2023-10-05 19:05 ` Bartosz Golaszewski
2023-10-05 19:43 ` Dipen Patel
2023-10-05 19:47 ` Bartosz Golaszewski
2023-10-09 6:48 ` Bartosz Golaszewski
2023-10-09 16:34 ` Dipen Patel
2023-10-09 17:46 ` Dipen Patel
2023-09-05 18:53 ` [RFT PATCH 15/21] arm: omap1: ams-delta: stop using gpiochip_find() Bartosz Golaszewski
2023-09-06 14:48 ` Andy Shevchenko
2023-09-06 14:56 ` Bartosz Golaszewski
2023-09-07 7:31 ` Linus Walleij
2023-09-08 18:07 ` Janusz Krzysztofik
2023-09-11 11:09 ` Bartosz Golaszewski
2023-09-11 12:50 ` Tony Lindgren
2023-09-11 17:17 ` Janusz Krzysztofik
2023-09-07 7:35 ` Linus Walleij
2023-09-07 7:57 ` Bartosz Golaszewski
2023-10-04 11:59 ` Bartosz Golaszewski
2023-09-05 18:53 ` [PATCH 16/21] gpio: of: correct notifier return codes Bartosz Golaszewski
2023-09-07 7:36 ` Linus Walleij
2023-09-05 18:53 ` [PATCH 17/21] gpio: of: replace gpiochip_find_* with gpio_device_find_* Bartosz Golaszewski
2023-09-07 7:37 ` Linus Walleij
2023-09-07 7:38 ` Linus Walleij
2023-09-05 18:53 ` [PATCH 18/21] gpio: acpi: replace gpiochip_find() with gpio_device_find() Bartosz Golaszewski
2023-09-06 14:50 ` Andy Shevchenko
2023-09-07 7:39 ` Linus Walleij
2023-09-05 18:53 ` [PATCH 19/21] gpio: swnode: replace gpiochip_find() with gpio_device_find_by_label() Bartosz Golaszewski
2023-09-06 14:52 ` Andy Shevchenko
2023-09-07 7:40 ` Linus Walleij
2024-01-24 14:59 ` Paul Cercueil
2024-01-24 15:04 ` Bartosz Golaszewski
2024-01-24 15:11 ` Paul Cercueil
2024-01-24 15:18 ` Paul Cercueil
2023-09-05 18:53 ` [PATCH 20/21] gpio: sysfs: drop the mention of gpiochip_find() from sysfs code Bartosz Golaszewski
2023-09-07 7:40 ` Linus Walleij
2023-09-05 18:53 ` [PATCH 21/21] gpiolib: remove gpiochip_find() Bartosz Golaszewski
2023-09-06 14:53 ` Andy Shevchenko
2023-09-07 7:42 ` Linus Walleij
2023-09-07 7:00 ` [PATCH 00/21] gpio: convert users to gpio_device_find() and " Linus Walleij
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