From cfedebec1fb3fe338012662d8b4f71d5c839ee4b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 20 Feb 2013 13:15:41 +1100
Subject: [PATCH] drivers/rtc: use of_match_ptr() macro

This eliminates having an #ifdef returning NULL for the case when OF is
disabled.  Maintains consistency in cases where OF is always selected.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/rtc/rtc-cmos.c     | 3 +--
 drivers/rtc/rtc-mpc5121.c  | 5 ++++-
 drivers/rtc/rtc-sa1100.c   | 4 +++-
 drivers/rtc/rtc-snvs.c     | 2 +-
 drivers/rtc/rtc-stmp3xxx.c | 3 ++-
 5 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 16630aa87f45..9deb9e47a67c 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -1098,7 +1098,6 @@ static __init void cmos_of_init(struct platform_device *pdev)
 }
 #else
 static inline void cmos_of_init(struct platform_device *pdev) {}
-#define of_cmos_match NULL
 #endif
 /*----------------------------------------------------------------*/
 
@@ -1140,7 +1139,7 @@ static struct platform_driver cmos_platform_driver = {
 #ifdef CONFIG_PM
 		.pm		= &cmos_pm_ops,
 #endif
-		.of_match_table = of_cmos_match,
+		.of_match_table = of_match_ptr(of_cmos_match),
 	}
 };
 
diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c
index bec10be96f84..bdcc60830aec 100644
--- a/drivers/rtc/rtc-mpc5121.c
+++ b/drivers/rtc/rtc-mpc5121.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/rtc.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
@@ -403,17 +404,19 @@ static int mpc5121_rtc_remove(struct platform_device *op)
 	return 0;
 }
 
+#ifdef CONFIG_OF
 static struct of_device_id mpc5121_rtc_match[] = {
 	{ .compatible = "fsl,mpc5121-rtc", },
 	{ .compatible = "fsl,mpc5200-rtc", },
 	{},
 };
+#endif
 
 static struct platform_driver mpc5121_rtc_driver = {
 	.driver = {
 		.name = "mpc5121-rtc",
 		.owner = THIS_MODULE,
-		.of_match_table = mpc5121_rtc_match,
+		.of_match_table = of_match_ptr(mpc5121_rtc_match),
 	},
 	.probe = mpc5121_rtc_probe,
 	.remove = mpc5121_rtc_remove,
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 50a5c4adee48..df9180e80e3a 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -349,12 +349,14 @@ static const struct dev_pm_ops sa1100_rtc_pm_ops = {
 };
 #endif
 
+#ifdef CONFIG_OF
 static struct of_device_id sa1100_rtc_dt_ids[] = {
 	{ .compatible = "mrvl,sa1100-rtc", },
 	{ .compatible = "mrvl,mmp-rtc", },
 	{}
 };
 MODULE_DEVICE_TABLE(of, sa1100_rtc_dt_ids);
+#endif
 
 static struct platform_driver sa1100_rtc_driver = {
 	.probe		= sa1100_rtc_probe,
@@ -364,7 +366,7 @@ static struct platform_driver sa1100_rtc_driver = {
 #ifdef CONFIG_PM
 		.pm	= &sa1100_rtc_pm_ops,
 #endif
-		.of_match_table = sa1100_rtc_dt_ids,
+		.of_match_table = of_match_ptr(sa1100_rtc_dt_ids),
 	},
 };
 
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index 40662e9dc0ab..f7d90703db5e 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -338,7 +338,7 @@ static struct platform_driver snvs_rtc_driver = {
 		.name	= "snvs_rtc",
 		.owner	= THIS_MODULE,
 		.pm	= &snvs_rtc_pm_ops,
-		.of_match_table = snvs_dt_ids,
+		.of_match_table = of_match_ptr(snvs_dt_ids),
 	},
 	.probe		= snvs_rtc_probe,
 	.remove		= snvs_rtc_remove,
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index cc9a9b652b13..98f0d3c30738 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -26,6 +26,7 @@
 #include <linux/rtc.h>
 #include <linux/slab.h>
 #include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/stmp_device.h>
 #include <linux/stmp3xxx_rtc_wdt.h>
 
@@ -344,7 +345,7 @@ static struct platform_driver stmp3xxx_rtcdrv = {
 	.driver		= {
 		.name	= "stmp3xxx-rtc",
 		.owner	= THIS_MODULE,
-		.of_match_table = rtc_dt_ids,
+		.of_match_table = of_match_ptr(rtc_dt_ids),
 	},
 };
 
-- 
2.39.5