linux-kernel - [PATCH] pinctrl: aw9523: allow building as loadable module

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Date: Thu,  7 Mar 2024 15:06:44 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Linus Walleij <linus.walleij@...aro.org>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>,
	David Bauer <mail@...id-bauer.net>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Arnd Bergmann <arnd@...db.de>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] pinctrl: aw9523: allow building as loadable module

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

When CONFIG_I2C is set to =m, the new aw9523 driver fails to link:

arm-linux-gnueabi-ld: drivers/pinctrl/pinctrl-aw9523.o: in function `aw9523_probe':
pinctrl-aw9523.c:(.text+0x9f8): undefined reference to `__devm_regmap_init_i2c'
arm-linux-gnueabi-ld: drivers/pinctrl/pinctrl-aw9523.o: in function `aw9523_driver_init':
pinctrl-aw9523.c:(.init.text+0x4): undefined reference to `i2c_register_driver'
arm-linux-gnueabi-ld: drivers/pinctrl/pinctrl-aw9523.o: in function `aw9523_driver_exit':
pinctrl-aw9523.c:(.exit.text+0x2): undefined reference to `i2c_del_driver'

Make it a tristate symbol so the dependency is correctly honored.

Fixes: bfa5aa367a82 ("pinctrl: Add driver for Awinic AW9523/B I2C GPIO Expander")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/pinctrl/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 21d38bf2d1ca..d45657aa986a 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -128,7 +128,7 @@ config PINCTRL_AXP209
 	  Say Y to enable pinctrl and GPIO support for the AXP209 PMIC.
 
 config PINCTRL_AW9523
-	bool "Awinic AW9523/AW9523B I2C GPIO expander pinctrl driver"
+	tristate "Awinic AW9523/AW9523B I2C GPIO expander pinctrl driver"
 	depends on OF && I2C
 	select PINMUX
 	select PINCONF
-- 
2.39.2