drm: Constify drm_encoder_slave_funcs

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450178476-26284-11-git-send-email-boris.brezillon@free-electrons.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

5 files changed, 10 insertions, 10 deletions

diff --git a/drivers/gpu/drm/drm_encoder_slave.c b/drivers/gpu/drm/drm_encoder_slave.c
index d18b88b755c3..e8629076de32 100644
--- a/drivers/gpu/drm/drm_encoder_slave.c
+++ b/drivers/gpu/drm/drm_encoder_slave.c
@@ -124,7 +124,7 @@ EXPORT_SYMBOL(drm_i2c_encoder_destroy);
  * Wrapper fxns which can be plugged in to drm_encoder_helper_funcs:
  */
 
-static inline struct drm_encoder_slave_funcs *
+static inline const struct drm_encoder_slave_funcs *
 get_slave_funcs(struct drm_encoder *enc)
 {
         return to_encoder_slave(enc)->slave_funcs;
diff --git a/drivers/gpu/drm/nouveau/nouveau_encoder.h b/drivers/gpu/drm/nouveau/nouveau_encoder.h
index c38a86408363..ee6a6d3fc80f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_encoder.h
+++ b/drivers/gpu/drm/nouveau/nouveau_encoder.h
@@ -83,7 +83,7 @@ static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
         return &enc->base.base;
 }
 
-static inline struct drm_encoder_slave_funcs *
+static inline const struct drm_encoder_slave_funcs *
 get_slave_funcs(struct drm_encoder *enc)
 {
         return to_encoder_slave(enc)->slave_funcs;
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c b/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
index 96f2eb43713c..a37b6e2fe51a 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
@@ -28,7 +28,7 @@ static int rcar_du_hdmi_connector_get_modes(struct drm_connector *connector)
 {
         struct rcar_du_connector *con = to_rcar_connector(connector);
         struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->encoder);
-        struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+        const struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
 
         if (sfuncs->get_modes == NULL)
                 return 0;
@@ -41,7 +41,7 @@ static int rcar_du_hdmi_connector_mode_valid(struct drm_connector *connector,
 {
         struct rcar_du_connector *con = to_rcar_connector(connector);
         struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->encoder);
-        struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+        const struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
 
         if (sfuncs->mode_valid == NULL)
                 return MODE_OK;
@@ -66,7 +66,7 @@ rcar_du_hdmi_connector_detect(struct drm_connector *connector, bool force)
 {
         struct rcar_du_connector *con = to_rcar_connector(connector);
         struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->encoder);
-        struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+        const struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
 
         if (sfuncs->detect == NULL)
                 return connector_status_unknown;
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c
index 11267de26a51..2567efcbee36 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c
@@ -35,7 +35,7 @@ struct rcar_du_hdmienc {
 static void rcar_du_hdmienc_disable(struct drm_encoder *encoder)
 {
         struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-        struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+        const struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
 
         if (sfuncs->dpms)
                 sfuncs->dpms(encoder, DRM_MODE_DPMS_OFF);
@@ -50,7 +50,7 @@ static void rcar_du_hdmienc_disable(struct drm_encoder *encoder)
 static void rcar_du_hdmienc_enable(struct drm_encoder *encoder)
 {
         struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-        struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+        const struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
 
         if (hdmienc->renc->lvds)
                 rcar_du_lvdsenc_enable(hdmienc->renc->lvds, encoder->crtc,
@@ -67,7 +67,7 @@ static int rcar_du_hdmienc_atomic_check(struct drm_encoder *encoder,
                                         struct drm_connector_state *conn_state)
 {
         struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-        struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+        const struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
         struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
         const struct drm_display_mode *mode = &crtc_state->mode;
 
@@ -89,7 +89,7 @@ static void rcar_du_hdmienc_mode_set(struct drm_encoder *encoder,
                                      struct drm_display_mode *adjusted_mode)
 {
         struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder);
-        struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
+        const struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
 
         if (sfuncs->mode_set)
                 sfuncs->mode_set(encoder, mode, adjusted_mode);
diff --git a/include/drm/drm_encoder_slave.h b/include/drm/drm_encoder_slave.h
index 8b9cc3671858..82cdf611393d 100644
--- a/include/drm/drm_encoder_slave.h
+++ b/include/drm/drm_encoder_slave.h
@@ -95,7 +95,7 @@ struct drm_encoder_slave_funcs {
 struct drm_encoder_slave {
         struct drm_encoder base;
 
-        struct drm_encoder_slave_funcs *slave_funcs;
+        const struct drm_encoder_slave_funcs *slave_funcs;
         void *slave_priv;
         void *bus_priv;
 };