drm/stm: ltdc: Constify funcs structures

Constify drm funcs structures.

Signed-off-by: Philippe CORNU <philippe.cornu@st.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1500552357-29487-5-git-send-email-philippe.cornu@st.com

diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 628825b..92e58ba 100644 (file)
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -511,7 +511,7 @@ static void ltdc_crtc_atomic_flush(struct drm_crtc *crtc,
        }
 }
 
-static struct drm_crtc_helper_funcs ltdc_crtc_helper_funcs = {
+static const struct drm_crtc_helper_funcs ltdc_crtc_helper_funcs = {
        .load_lut = ltdc_crtc_load_lut,
        .mode_set_nofb = ltdc_crtc_mode_set_nofb,
        .atomic_flush = ltdc_crtc_atomic_flush,
@@ -537,7 +537,7 @@ void ltdc_crtc_disable_vblank(struct drm_device *ddev, unsigned int pipe)
        reg_clear(ldev->regs, LTDC_IER, IER_LIE);
 }
 
-static struct drm_crtc_funcs ltdc_crtc_funcs = {
+static const struct drm_crtc_funcs ltdc_crtc_funcs = {
        .destroy = drm_crtc_cleanup,
        .set_config = drm_atomic_helper_set_config,
        .page_flip = drm_atomic_helper_page_flip,
@@ -693,7 +693,7 @@ static void ltdc_plane_atomic_disable(struct drm_plane *plane,
                         oldstate->crtc->base.id, plane->base.id);
 }
 
-static struct drm_plane_funcs ltdc_plane_funcs = {
+static const struct drm_plane_funcs ltdc_plane_funcs = {
        .update_plane = drm_atomic_helper_update_plane,
        .disable_plane = drm_atomic_helper_disable_plane,
        .destroy = drm_plane_cleanup,