[PATCH 09/33] phy: tegra: use match_string() helper

[Yisheng Xie]

match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Cc: Kishon Vijay Abraham I <kishon@xxxxxx>
Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
Cc: Jonathan Hunter <jonathanh@xxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
---
 drivers/phy/tegra/xusb.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
index 11aa590..de1b4eb 100644
--- a/drivers/phy/tegra/xusb.c
+++ b/drivers/phy/tegra/xusb.c
@@ -102,19 +102,6 @@ static struct phy *tegra_xusb_pad_of_xlate(struct device *dev,
 	return np;
 }
 
-static int
-tegra_xusb_lane_lookup_function(struct tegra_xusb_lane *lane,
-				    const char *function)
-{
-	unsigned int i;
-
-	for (i = 0; i < lane->soc->num_funcs; i++)
-		if (strcmp(function, lane->soc->funcs[i]) == 0)
-			return i;
-
-	return -EINVAL;
-}
-
 int tegra_xusb_lane_parse_dt(struct tegra_xusb_lane *lane,
 			     struct device_node *np)
 {
@@ -126,7 +113,7 @@ int tegra_xusb_lane_parse_dt(struct tegra_xusb_lane *lane,
 	if (err < 0)
 		return err;
 
-	err = tegra_xusb_lane_lookup_function(lane, function);
+	err = match_string(lane->soc->funcs, lane->soc->num_funcs, function);
 	if (err < 0) {
 		dev_err(dev, "invalid function \"%s\" for lane \"%s\"\n",
 			function, np->name);
-- 
1.7.12.4