linux-kernel - [PATCH] leds: qcom-lpg: add QCOM

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Date: Mon, 12 Feb 2024 12:15:02 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Pavel Machek <pavel@....cz>,
	Lee Jones <lee@...nel.org>,
	Anjelique Melendez <quic_amelende@...cinc.com>
Cc: Arnd Bergmann <arnd@...db.de>,
	Jean Delvare <jdelvare@...e.de>,
	linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] leds: qcom-lpg: add QCOM_PBS dependency

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

The lpg driver fails to link now when the pbs driver is in a loadable module:

x86_64-linux-ld: drivers/leds/rgb/leds-qcom-lpg.o: in function `lpg_brightness_set':
leds-qcom-lpg.c:(.text+0xe7f): undefined reference to `qcom_pbs_trigger_event'
x86_64-linux-ld: drivers/leds/rgb/leds-qcom-lpg.o: in function `lpg_probe':
leds-qcom-lpg.c:(.text+0x16a5): undefined reference to `get_pbs_client_device'

Add a dependency to avoid the broken configuration. Apparently there is still
a use for lpg with pbs disabled entirely for certain chips, so allow both
but not LEDS_QCOM_LPG=y with QCOM_PBS=m.

Fixes: 214110175679 ("leds: rgb: leds-qcom-lpg: Add support for PPG through single SDAM")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/leds/rgb/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/leds/rgb/Kconfig b/drivers/leds/rgb/Kconfig
index e66bd21b9852..eaeafdd5eaae 100644
--- a/drivers/leds/rgb/Kconfig
+++ b/drivers/leds/rgb/Kconfig
@@ -41,6 +41,7 @@ config LEDS_QCOM_LPG
 	tristate "LED support for Qualcomm LPG"
 	depends on OF
 	depends on PWM
+	depends on QCOM_PBS || !QCOM_PBS
 	depends on SPMI
 	help
 	  This option enables support for the Light Pulse Generator found in a
-- 
2.39.2