linux-kernel - [PATCH v2 04/18] gpiolib: add build option for CDEV v1 ABI

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Message-Id: <20200725041955.9985-5-warthog618@gmail.com>
Date:   Sat, 25 Jul 2020 12:19:41 +0800
From:   Kent Gibson <warthog618@...il.com>
To:     linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        bgolaszewski@...libre.com, linus.walleij@...aro.org
Cc:     Kent Gibson <warthog618@...il.com>
Subject: [PATCH v2 04/18] gpiolib: add build option for CDEV v1 ABI

Add a build option to allow the removal of the CDEV v1 ABI.

Suggested-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
Signed-off-by: Kent Gibson <warthog618@...il.com>
---

This patch is before the V2 implementation, and is non-functional until
that patch, as some parts of that patch would be written slightly
differently if removing V1 was not considered.
Adding this patch after that would necessitate revisiting the V2 changes,
so this ordering results in two simpler patches.

 drivers/gpio/Kconfig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b5bb9efc1092..d9775998a997 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -81,6 +81,18 @@ config GPIO_CDEV
 
 	  If unsure, say Y.
 
+config GPIO_CDEV_V1
+	bool "Support GPIO ABI Version 1"
+	default y
+	depends on GPIO_CDEV
+	help
+	  Say Y here to support version 1 of the GPIO CDEV ABI.
+
+	  This ABI version is deprecated and will be removed in the future.
+	  Please use the latest ABI for new developments.
+
+	  If unsure, say Y.
+
 config GPIO_GENERIC
 	depends on HAS_IOMEM # Only for IOMEM drivers
 	tristate
-- 
2.27.0