hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm/i915: Add aspect ratio property for HDMI 

Create and attach the drm property to set aspect ratio. If there is no user
specified value, then PAR_NONE/Automatic option is set by default. User can
select aspect ratio 4:3 or 16:9. The aspect ratio selected by user would
come into effect with a mode set.

v2: Modified switch case to include aspect ratio enum changes

v3: Modified the patch according the change in the earlier patch to return
errno in case property creation fails. With this change, property will be
attached only if creation is successful

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Vandana Kannan 2014-06-11 11:06:01 +05:30 committed by Daniel Vetter
parent 69ab6d35f6
commit 94a11ddcec
2 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/intel_drv.h
View File

@ -498,6 +498,7 @@ struct intel_hdmi {
bool has_audio;
enum hdmi_force_audio force_audio;
bool rgb_quant_range_selectable;
enum hdmi_picture_aspect aspect_ratio;
void (*write_infoframe)(struct drm_encoder *encoder,
enum hdmi_infoframe_type type,
const void *frame, ssize_t len);

31
drivers/gpu/drm/i915/intel_hdmi.c
View File

@ -367,6 +367,9 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
union hdmi_infoframe frame;
int ret;
/* Set user selected PAR to incoming mode's member */
adjusted_mode->picture_aspect_ratio = intel_hdmi->aspect_ratio;
ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
adjusted_mode);
if (ret < 0) {
@ -1124,6 +1127,23 @@ intel_hdmi_set_property(struct drm_connector *connector,
goto done;
}
if (property == connector->dev->mode_config.aspect_ratio_property) {
switch (val) {
case DRM_MODE_PICTURE_ASPECT_NONE:
intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
break;
case DRM_MODE_PICTURE_ASPECT_4_3:
intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_4_3;
break;
case DRM_MODE_PICTURE_ASPECT_16_9:
intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_16_9;
break;
default:
return -EINVAL;
}
goto done;
}
return -EINVAL;
done:
@ -1479,12 +1499,23 @@ static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
.destroy = intel_encoder_destroy,
};
static void
intel_attach_aspect_ratio_property(struct drm_connector *connector)
{
if (!drm_mode_create_aspect_ratio_property(connector->dev))
drm_object_attach_property(&connector->base,
connector->dev->mode_config.aspect_ratio_property,
DRM_MODE_PICTURE_ASPECT_NONE);
}
static void
intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *connector)
{
intel_attach_force_audio_property(connector);
intel_attach_broadcast_rgb_property(connector);
intel_hdmi->color_range_auto = true;
intel_attach_aspect_ratio_property(connector);
intel_hdmi->aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
}
void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,