[PATCH -next] phy: mediatek: Mark mtk_mipi_tx_driver with static keyword

[Zou Wei]

Fix the following sparse warning:

drivers/phy/mediatek/phy-mtk-mipi-dsi.c:237:24: warning: symbol 
'mtk_mipi_tx_driver' was not declared. Should it be static?

Signed-off-by: Zou Wei <zou_...@huawei.com>
---
 drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c 
b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
index 18c4812..eeb357b 100644
--- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
+++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
@@ -234,7 +234,7 @@ static const struct of_device_id mtk_mipi_tx_match[] = {
        { },
 };
 
-struct platform_driver mtk_mipi_tx_driver = {
+static struct platform_driver mtk_mipi_tx_driver = {
        .probe = mtk_mipi_tx_probe,
        .remove = mtk_mipi_tx_remove,
        .driver = {
-- 
2.6.2