[PATCH] drm/bridge: dw-mipi-dsi: fix dw_mipi_dsi_debugfs_show/write warnings

[Neil Armstrong]

This fixes the following warnings while building in W=1 :
dw-mipi-dsi.c:1002:5: warning: no previous prototype for 'dw_mipi_dsi_debugfs_write' [-Wmissing-prototypes]
dw-mipi-dsi.c:1027:5: warning: no previous prototype for 'dw_mipi_dsi_debugfs_show' [-Wmissing-prototypes]

Fixes: e2435d69204c ("drm/bridge: dw-mipi-dsi.c: Add VPG runtime config through debugfs")
Reported-by: kernel test robot <lkp at intel.com>
Cc: Angelo Ribeiro <angelo.ribeiro at synopsys.com>
Cc: Maxime Ripard <maxime at cerno.tech>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index 0b3825a4fbdb..52f5c5a2ed64 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -999,7 +999,7 @@ static const struct drm_bridge_funcs dw_mipi_dsi_bridge_funcs = {
 
 #ifdef CONFIG_DEBUG_FS
 
-int dw_mipi_dsi_debugfs_write(void *data, u64 val)
+static int dw_mipi_dsi_debugfs_write(void *data, u64 val)
 {
 	struct debugfs_entries *vpg = data;
 	struct dw_mipi_dsi *dsi;
@@ -1024,7 +1024,7 @@ int dw_mipi_dsi_debugfs_write(void *data, u64 val)
 	return 0;
 }
 
-int dw_mipi_dsi_debugfs_show(void *data, u64 *val)
+static int dw_mipi_dsi_debugfs_show(void *data, u64 *val)
 {
 	struct debugfs_entries *vpg = data;
 
-- 
2.22.0