diff options
| author | Manasi Navare <manasi.d.navare@intel.com> | 2021-01-25 12:08:18 -0800 |
|---|---|---|
| committer | Manasi Navare <manasi.d.navare@intel.com> | 2021-01-25 15:02:45 -0800 |
| commit | 5b0c59454314f1c6f384826c6fb30023c981b5e6 (patch) | |
| tree | e7054251e8fb2e28cbe871dd95d623e8def7071b | |
| parent | d1e2775e9b9690b3f4488ee8e44773b580654d68 (diff) | |
drm/i915/display/vrr: Create VRR file and add VRR capability check
We create a new file for all VRR related helpers.
Also add a function to check vrr capability based on
platform support, DPCD bits and EDID monitor range.
v2:
* Remove author (Jani N)
* Define HAS_VRR (Jani N)
* Ensure intel_dp can be obtained from conn (Jani N)
v3:
* Fix the header indent (Manasi)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210125200818.2015-1-manasi.d.navare@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vrr.c | 31 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vrr.h | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 2 |
4 files changed, 49 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 089f8e556432..ffd3a15f0ca1 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -260,6 +260,7 @@ i915-y += \ display/intel_sdvo.o \ display/intel_tv.o \ display/intel_vdsc.o \ + display/intel_vrr.o \ display/vlv_dsi.o \ display/vlv_dsi_pll.o diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c new file mode 100644 index 000000000000..e04cdd065748 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2020 Intel Corporation + * + */ + +#include "i915_drv.h" +#include "intel_display_types.h" +#include "intel_vrr.h" + +bool intel_vrr_is_capable(struct drm_connector *connector) +{ + struct intel_dp *intel_dp; + const struct drm_display_info *info = &connector->display_info; + struct drm_i915_private *i915 = to_i915(connector->dev); + + if (connector->connector_type != DRM_MODE_CONNECTOR_eDP && + connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) + return false; + + intel_dp = intel_attached_dp(to_intel_connector(connector)); + /* + * DP Sink is capable of Variable refresh video timings if + * Ignore MSA bit is set in DPCD. + * EDID monitor range also should be atleast 10 for reasonable + * Adaptive sync/ VRR end user experience. + */ + return HAS_VRR(i915) && + drm_dp_sink_can_do_video_without_timing_msa(intel_dp->dpcd) && + info->monitor_range.max_vfreq - info->monitor_range.min_vfreq > 10; +} diff --git a/drivers/gpu/drm/i915/display/intel_vrr.h b/drivers/gpu/drm/i915/display/intel_vrr.h new file mode 100644 index 000000000000..8102de494e2a --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_vrr.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2019 Intel Corporation + */ + +#ifndef __INTEL_VRR_H__ +#define __INTEL_VRR_H__ + +#include <linux/types.h> + +struct drm_connector; + +bool intel_vrr_is_capable(struct drm_connector *connector); + +#endif /* __INTEL_VRR_H__ */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8376cff5ba86..7e35c2627d4e 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1758,6 +1758,8 @@ tgl_revids_get(struct drm_i915_private *dev_priv) #define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->pipe_mask != 0) +#define HAS_VRR(i915) (INTEL_GEN(i915) >= 12) + /* Only valid when HAS_DISPLAY() is true */ #define INTEL_DISPLAY_ENABLED(dev_priv) \ (drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display) |