linux-kernel - [PATCH/RFC v2 3/5] gpio: Export gpio_name_to

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Date:   Wed, 11 Sep 2019 16:38:56 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     Alexander Graf <graf@...zon.com>,
        Peter Maydell <peter.maydell@...aro.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Phil Reid <preid@...ctromag.com.au>,
        Harish Jenny K N <harish_kandiga@...tor.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Christoffer Dall <christoffer.dall@....com>,
        Magnus Damm <magnus.damm@...il.com>,
        linux-gpio@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org, qemu-devel@...gnu.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH/RFC v2 3/5] gpio: Export gpio_name_to_desc() to modular GPIO code

Make gpio_name_to_desc() global, and export its symbol, so modular GPIO
driver can make use of this function.

This will be used by the GPIO Aggregator.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 drivers/gpio/gpiolib.c | 3 ++-
 drivers/gpio/gpiolib.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index c2cf01fb72a9de87..c0caafd111e6ff51 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -288,7 +288,7 @@ static int gpiodev_add_to_list(struct gpio_device *gdev)
 /*
  * Convert a GPIO name to its descriptor
  */
-static struct gpio_desc *gpio_name_to_desc(const char * const name)
+struct gpio_desc *gpio_name_to_desc(const char * const name)
 {
 	struct gpio_device *gdev;
 	unsigned long flags;
@@ -315,6 +315,7 @@ static struct gpio_desc *gpio_name_to_desc(const char * const name)
 
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(gpio_name_to_desc);
 
 /*
  * Takes the names from gc->names and checks if they are all unique. If they
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index b8b10a409c7b9c65..240d2868a3024b52 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -117,6 +117,7 @@ struct gpio_desc {
 	const char		*name;
 };
 
+struct gpio_desc *gpio_name_to_desc(const char * const name);
 int gpiod_request(struct gpio_desc *desc, const char *label);
 void gpiod_free(struct gpio_desc *desc);
 int gpiod_configure_flags(struct gpio_desc *desc, const char *con_id,
-- 
2.17.1