diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c
index 1b39d3fb17f7d07a5134457abfbe25fca54133f2..b439956a07f41798a1dd408c3ddad49956c9ceb8 100644
--- a/drivers/gpu/drm/tinydrm/st7586.c
+++ b/drivers/gpu/drm/tinydrm/st7586.c
@@ -172,8 +172,8 @@ static const struct drm_framebuffer_funcs st7586_fb_funcs = {
 	.dirty		= st7586_fb_dirty,
 };
 
-void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
-			struct drm_crtc_state *crtc_state)
+static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
+			       struct drm_crtc_state *crtc_state)
 {
 	struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
 	struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);