[PATCH 23/33] drm: i2c: ch7006: use match_string() helper

Yisheng Xie
2018-05-21T12:11:51Z

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

Cc: David Airlie <airlied@linux.ie>
Cc: Yisheng Xie <xieyisheng1@huawei.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
---
drivers/gpu/drm/i2c/ch7006_drv.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c
index 544a8a2..405c7fb 100644
--- a/drivers/gpu/drm/i2c/ch7006_drv.c
+++ b/drivers/gpu/drm/i2c/ch7006_drv.c
@@ -464,14 +464,11 @@ static int ch7006_encoder_init(struct i2c_client *client,
priv->chip_version = ch7006_read(client, CH7006_VERSION_ID);

if (ch7006_tv_norm) {
- for (i = 0; i < NUM_TV_NORMS; i++) {
- if (!strcmp(ch7006_tv_norm_names[i], ch7006_tv_norm)) {
- priv->norm = i;
- break;
- }
- }
-
- if (i == NUM_TV_NORMS)
+ i = match_string(ch7006_tv_norm_names,
+ NUM_TV_NORMS, ch7006_tv_norm);
+ if (i >= 0)
+ priv->norm = i;
+ else
ch7006_err(client, "Invalid TV norm setting \"%s\".\n",
ch7006_tv_norm);
}
--
1.7.12.4