From: Bo Shen <voice.shen@atmel.com>
Date: Mon, 15 Oct 2012 09:30:27 +0000 (+0800)
Subject: ARM: at91/i2c: change id to let i2c-gpio work
X-Git-Tag: v3.6.5~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5c182965ed38c70f0e99574041898c1f5a14c45;p=thirdparty%2Fkernel%2Fstable.git

ARM: at91/i2c: change id to let i2c-gpio work

commit 7840487cd6298f9f931103b558290d8d98d41c49 upstream.

The i2c core driver will turn the platform device ID to busnum
When using platfrom device ID as -1, it means dynamically assigned
the busnum. When writing code, we need to make sure the busnum,
and call i2c_register_board_info(int busnum, ...) to register device
if using -1, we do not know the value of busnum

In order to solve this issue, set the platform device ID as a fix number
Here using 0 to match the busnum used in i2c_regsiter_board_info()

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 01fb7325fecce..d5a49132ef633 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -463,7 +463,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91rm9200_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index bce572a530ef2..18ca240537e13 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -471,7 +471,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9260_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index bc2590d712d06..2495de8c32bf6 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -285,7 +285,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9261_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index 9b6ca734f1a96..9877963c29e77 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -542,7 +542,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9263_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index b3d365dadef59..c82a4276b1d5a 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -314,7 +314,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9rl_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };