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From: Arnd Bergmann <arnd@kernel.org>
To: Pavel Machek <pavel@ucw.cz>, Lee Jones <lee@kernel.org>,
	Joseph Strauss <jstrauss@mailbox.org>
Cc: "Arnd Bergmann" <arnd@arndb.de>,
	"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Jernej Skrabec" <jernej.skrabec@gmail.com>,
	"Duje Mihanović" <duje.mihanovic@skole.hr>,
	"Thomas Weißschuh" <linux@weissschuh.net>,
	"Christian Marangi" <ansuelsmth@gmail.com>,
	"Patrick Rudolph" <patrick.rudolph@9elements.com>,
	"George Stark" <gnstark@salutedevices.com>,
	linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] leds: blinkm: fix CONFIG_LEDS_CLASS_MULTICOLOR dependency
Date: Wed,  7 Aug 2024 09:55:53 +0200	[thread overview]
Message-ID: <20240807075614.2118068-1-arnd@kernel.org> (raw)

From: Arnd Bergmann <arnd@arndb.de>

With CONFIG_LEDS_CLASS_MULTICOLOR=m, a builtin leds-blinkm driver causes
a link failure:

arm-linux-gnueabi-ld: drivers/leds/leds-blinkm.o: in function `blinkm_set_mc_brightness':
leds-blinkm.c:(.text.blinkm_set_mc_brightness+0xc): undefined reference to `led_mc_calc_color_components'

Add a more specific dependency that only allows multicoler mode to
be enabled for blinkm if it can build and link.

Fixes: 56e8c56c9af0 ("leds: Add multicolor support to BlinkM LED driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/leds/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 41214c9b93ba..818c8bdd047e 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -838,7 +838,7 @@ config LEDS_BLINKM
 config LEDS_BLINKM_MULTICOLOR
 	bool "Enable multicolor support for BlinkM I2C RGB LED"
 	depends on LEDS_BLINKM
-	depends on LEDS_CLASS_MULTICOLOR
+	depends on LEDS_CLASS_MULTICOLOR=y || LEDS_CLASS_MULTICOLOR=LEDS_BLINKM
 	help
 	  This option enables multicolor sysfs class support for BlinkM LED and
 	  disables the older, separated sysfs interface
-- 
2.39.2


             reply	other threads:[~2024-08-07  7:56 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-07  7:55 Arnd Bergmann [this message]
2024-08-07 18:14 ` [PATCH] leds: blinkm: fix CONFIG_LEDS_CLASS_MULTICOLOR dependency Joseph Strauss
2024-08-16 16:05 ` (subset) " Lee Jones

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