drm: Make the .mode_fixup() operations mode argument a const pointer

The passed mode must not be modified by the operation, make it const.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

8 files changed, 12 insertions, 10 deletions

diff --git a/drivers/gpu/drm/i915/dvo.h b/drivers/gpu/drm/i915/dvo.h
index 8c2ad014c47..58914691a77 100644
--- a/drivers/gpu/drm/i915/dvo.h
+++ b/drivers/gpu/drm/i915/dvo.h
@@ -86,7 +86,7 @@ struct intel_dvo_dev_ops {
 	 * buses with clock limitations.
 	 */
 	bool (*mode_fixup)(struct intel_dvo_device *dvo,
-			   struct drm_display_mode *mode,
+			   const struct drm_display_mode *mode,
 			   struct drm_display_mode *adjusted_mode);
 
 	/*
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 61d55d3141c..48e3b76e0ab 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -132,7 +132,7 @@ static int intel_crt_mode_valid(struct drm_connector *connector,
 }
 
 static bool intel_crt_mode_fixup(struct drm_encoder *encoder,
-				 struct drm_display_mode *mode,
+				 const struct drm_display_mode *mode,
 				 struct drm_display_mode *adjusted_mode)
 {
 	return true;
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 95817c4edbe..2bc1505132c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -703,7 +703,8 @@ intel_dp_i2c_init(struct intel_dp *intel_dp,
 }
 
 static bool
-intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
+intel_dp_mode_fixup(struct drm_encoder *encoder,
+		    const struct drm_display_mode *mode,
 		    struct drm_display_mode *adjusted_mode)
 {
 	struct drm_device *dev = encoder->dev;
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 60ba50b956f..36c542e5036 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -136,7 +136,7 @@ static int intel_dvo_mode_valid(struct drm_connector *connector,
 }
 
 static bool intel_dvo_mode_fixup(struct drm_encoder *encoder,
-				 struct drm_display_mode *mode,
+				 const struct drm_display_mode *mode,
 				 struct drm_display_mode *adjusted_mode)
 {
 	struct intel_dvo *intel_dvo = enc_to_intel_dvo(encoder);
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 5b2c88ca6ed..98f602427eb 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -685,7 +685,7 @@ static int intel_hdmi_mode_valid(struct drm_connector *connector,
 }
 
 static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
-				  struct drm_display_mode *mode,
+				  const struct drm_display_mode *mode,
 				  struct drm_display_mode *adjusted_mode)
 {
 	return true;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 9b706a540d7..49f09a8b05e 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -229,7 +229,7 @@ static inline u32 panel_fitter_scaling(u32 source, u32 target)
 }
 
 static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
-				  struct drm_display_mode *mode,
+				  const struct drm_display_mode *mode,
 				  struct drm_display_mode *adjusted_mode)
 {
 	struct drm_device *dev = encoder->dev;
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 2f5106a488c..26a6a4d0d07 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -935,7 +935,7 @@ static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 
 static bool
 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
-					struct drm_display_mode *mode)
+					const struct drm_display_mode *mode)
 {
 	struct intel_sdvo_dtd output_dtd;
 
@@ -954,7 +954,7 @@ intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
  * Unfortunately we have to set up the full output mode to do that. */
 static bool
 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
-				    struct drm_display_mode *mode,
+				    const struct drm_display_mode *mode,
 				    struct drm_display_mode *adjusted_mode)
 {
 	struct intel_sdvo_dtd input_dtd;
@@ -979,7 +979,7 @@ intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
 }
 
 static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
-				  struct drm_display_mode *mode,
+				  const struct drm_display_mode *mode,
 				  struct drm_display_mode *adjusted_mode)
 {
 	struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder);
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 3b413c9042c..befce6c4970 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -891,7 +891,8 @@ intel_tv_mode_valid(struct drm_connector *connector,
 
 
 static bool
-intel_tv_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
+intel_tv_mode_fixup(struct drm_encoder *encoder,
+		    const struct drm_display_mode *mode,
 		    struct drm_display_mode *adjusted_mode)
 {
 	struct drm_device *dev = encoder->dev;