[PATCH 21/35 linux-next] mfd: constify of_device_id array

[Fabian Frederick <fabf@skynet.be>]

of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
 drivers/mfd/hi6421-pmic-core.c | 2 +-
 drivers/mfd/rk808.c            | 2 +-
 drivers/mfd/twl4030-power.c    | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/hi6421-pmic-core.c b/drivers/mfd/hi6421-pmic-core.c
index 7210ae2..95b2ff8 100644
--- a/drivers/mfd/hi6421-pmic-core.c
+++ b/drivers/mfd/hi6421-pmic-core.c
@@ -93,7 +93,7 @@ static int hi6421_pmic_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id of_hi6421_pmic_match_tbl[] = {
+static const struct of_device_id of_hi6421_pmic_match_tbl[] = {
 	{ .compatible = "hisilicon,hi6421-pmic", },
 	{ },
 };
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 7cf25c7..4b1e439 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -246,7 +246,7 @@ static int rk808_remove(struct i2c_client *client)
 	return 0;
 }
 
-static struct of_device_id rk808_of_match[] = {
+static const struct of_device_id rk808_of_match[] = {
 	{ .compatible = "rockchip,rk808" },
 	{ },
 };
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 3935092..f440aed 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -829,7 +829,7 @@ static struct twl4030_power_data osc_off_idle = {
 	.board_config		= osc_off_rconfig,
 };
 
-static struct of_device_id twl4030_power_of_match[] = {
+static const struct of_device_id twl4030_power_of_match[] = {
 	{
 		.compatible = "ti,twl4030-power",
 	},
-- 
2.1.0