Add a new helper to call encoder->mode_valid callback.
Suggested-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Jose Abreu <joab...@synopsys.com>
Cc: Carlos Palminha <palmi...@synopsys.com>
Cc: Alexey Brodkin <abrod...@synopsys.com>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Dave Airlie <airl...@linux.ie>
Cc: Andrzej Hajda <a.ha...@samsung.com>
Cc: Archit Taneja <arch...@codeaurora.org>
---
drivers/gpu/drm/drm_crtc_internal.h | 2 ++
drivers/gpu/drm/drm_encoder.c | 23 +++++++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/drivers/gpu/drm/drm_crtc_internal.h
b/drivers/gpu/drm/drm_crtc_internal.h
index 3800abd..6165bc9 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -129,6 +129,8 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev,
void *data,
/* drm_encoder.c */
int drm_encoder_register_all(struct drm_device *dev);
void drm_encoder_unregister_all(struct drm_device *dev);
+enum drm_mode_status drm_encoder_mode_valid(struct drm_encoder *encoder,
+ const struct drm_display_mode
*mode);
/* IOCTL */
int drm_mode_getencoder(struct drm_device *dev,
diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c
index 0708779..af75f42 100644
--- a/drivers/gpu/drm/drm_encoder.c
+++ b/drivers/gpu/drm/drm_encoder.c
@@ -23,6 +23,7 @@
#include <linux/export.h>
#include <drm/drmP.h>
#include <drm/drm_encoder.h>
+#include <drm/drm_modeset_helper_vtables.h>
#include "drm_crtc_internal.h"
@@ -239,3 +240,25 @@ int drm_mode_getencoder(struct drm_device *dev, void *data,
return 0;
}
+
+/**
+ * drm_encoder_mode_valid - call encoder->mode_valid callback, if any.
+ * @encoder: encoder
+ * @mode: mode to be validated
+ *
+ * If no mode_valid callback is available this will return MODE_OK.
+ *
+ * Returns: drm_mode_status Enum
+ */
+enum drm_mode_status drm_encoder_mode_valid(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode)
+{
+ const struct drm_encoder_helper_funcs *encoder_funcs =
+ encoder->helper_private;
+
+ if (!encoder_funcs || !encoder_funcs->mode_valid)
+ return MODE_OK;
+
+ return encoder_funcs->mode_valid(encoder, mode);
+}
+EXPORT_SYMBOL(drm_encoder_mode_valid);
--
1.9.1
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