We get 1 warning when building kernel with W=1:
drivers/gpu/drm/exynos/exynos_dp.c:46:5: warning: no previous prototype for 
'exynos_dp_crtc_clock_enable' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou....@linaro.org>
 drivers/gpu/drm/exynos/exynos_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/exynos/exynos_dp.c 
index 4f08505..528229f 100644
--- a/drivers/gpu/drm/exynos/exynos_dp.c
+++ b/drivers/gpu/drm/exynos/exynos_dp.c
@@ -43,7 +43,7 @@ struct exynos_dp_device {
        struct analogix_dp_plat_data plat_data;
-int exynos_dp_crtc_clock_enable(struct analogix_dp_plat_data *plat_data,
+static int exynos_dp_crtc_clock_enable(struct analogix_dp_plat_data *plat_data,
                                bool enable)
        struct exynos_dp_device *dp = to_dp(plat_data);

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