The function st7586_pipe_enable  is local to the source
and does not need to be in global scope, so make it static.
Cleans up sparse warning:
symbol 'st7586_pipe_enable' was not declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-By: David Lechner <david@lechnology.com>
[noralf: fixed: Alignment should match open parenthesis]
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20170816092306.10969-1-colin.king@canonical.com
 
        .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);