From: Kukjin Kim <kgene.kim@samsung.com>
Date: Mon, 11 Jan 2010 03:21:51 +0000 (+0900)
Subject: ARM: SAMSUNG: Add config option for number of additional GPIO pins.
X-Git-Tag: firefly_0821_release~9833^2~2609^2~3^2~90
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=85841bcedd6048dd37cab58a504e5317192324c6;p=firefly-linux-kernel-4.4.55.git

ARM: SAMSUNG: Add config option for number of additional GPIO pins.

This patch adds a configuration option for specifing the number
of additional GPIO pins to be used in addition to the GPIO pins
supported onchip.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---

diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 900b463fc197..faec4b8c626c 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -66,6 +66,14 @@ config S3C_GPIO_PULL_UP
 	help
 	  Internal configuration to enable the correct GPIO pull helper
 
+config SAMSUNG_GPIO_EXTRA
+	int "Number of additional GPIO pins"
+	default 0
+	help
+	  Use additional GPIO space in addition to the GPIO's the SOC
+	  provides. This allows expanding the GPIO space for use with
+	  GPIO expanders.
+
 # device definitions to compile in
 
 config S3C_DEV_HSMMC