linux-kernel - [PATCH] leds: lgm: fix gpiolib dependency

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Date:   Mon,  8 Mar 2021 16:30:46 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Pavel Machek <pavel@....cz>,
        Amireddy Mallikarjuna reddy 
        <mallikarjunax.reddy@...ux.intel.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Dan Murphy <dmurphy@...com>,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] leds: lgm: fix gpiolib dependency

From: Arnd Bergmann <arnd@...db.de>

Without gpiolib, the driver fails to build:

    drivers/leds/blink/leds-lgm-sso.c:123:19: error: field has incomplete type 'struct gpio_chip'
            struct gpio_chip chip;
                             ^
    include/linux/gpio.h:107:8: note: forward declaration of 'struct gpio_chip'
    struct gpio_chip;
           ^
    drivers/leds/blink/leds-lgm-sso.c:263:3: error: implicit declaration of function 'gpiod_set_value' [-Werror,-Wimplicit-function-declaration]
                    gpiod_set_value(led->gpiod, val);
                    ^
    drivers/leds/blink/leds-lgm-sso.c:263:3: note: did you mean 'gpio_set_value'?
    include/linux/gpio.h:168:20: note: 'gpio_set_value' declared here
    static inline void gpio_set_value(unsigned gpio, int value)
                       ^
    drivers/leds/blink/leds-lgm-sso.c:345:3: error: implicit declaration of function 'gpiod_set_value' [-Werror,-Wimplicit-function-declaration]
                    gpiod_set_value(led->gpiod, 1);
                    ^

Add the dependency in Kconfig.

Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/leds/blink/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/leds/blink/Kconfig b/drivers/leds/blink/Kconfig
index 265b53476a80..6dedc58c47b3 100644
--- a/drivers/leds/blink/Kconfig
+++ b/drivers/leds/blink/Kconfig
@@ -9,6 +9,7 @@ if LEDS_BLINK
 
 config LEDS_BLINK_LGM
 	tristate "LED support for Intel LGM SoC series"
+	depends on GPIOLIB
 	depends on LEDS_CLASS
 	depends on MFD_SYSCON
 	depends on OF
-- 
2.29.2