linux-kernel - [PATCH v4 1/4] gpio: vf610: allow disabling the vf610 driver

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Message-Id: <20240124205900.14791-2-martin@kaiser.cx>
Date: Wed, 24 Jan 2024 21:58:57 +0100
From: Martin Kaiser <martin@...ser.cx>
To: Shawn Guo <shawnguo@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>
Cc: Peng Fan <peng.fan@....com>,
	Andrew Lunn <andrew@...n.ch>,
	linux-gpio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Martin Kaiser <martin@...ser.cx>
Subject: [PATCH v4 1/4] gpio: vf610: allow disabling the vf610 driver

The vf610 gpio driver is enabled by default for all i.MX machines,
without any option to disable it in a board-specific config file.

Most i.MX chipsets have no hardware for this driver. Change the default
to enable GPIO_VF610 for SOC_VF610 and disable it otherwise.

Add a text description after the bool type, this makes the driver
selectable by make config etc.

Fixes: 30a35c07d9e9 ("gpio: vf610: drop the SOC_VF610 dependency for GPIO_VF610")
Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
v4:
 - add a new patch to enable COMPILE_TEST

v3:
 - split the changes into three patches

v2:
 - enable the vf610 gpio driver in the defconfig files for arm_v7
   (i.MX7ULP) and arm64 (i.MX8QM, DXL, ULP and i.MX93)

 drivers/gpio/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 1301cec94f12..353af1a4d0ac 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -711,7 +711,8 @@ config GPIO_UNIPHIER
 	  Say yes here to support UniPhier GPIOs.
 
 config GPIO_VF610
-	def_bool y
+	bool "VF610 GPIO support"
+	default y if SOC_VF610
 	depends on ARCH_MXC
 	select GPIOLIB_IRQCHIP
 	help
-- 
2.39.2