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drm/i915: Extract intel_mode_vblank_end()

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Extract intel_mode_vblank_end() in the same vein as
intel_mode_vblank_start(). While we have only one use
of this it seems nicer to unify the approach.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240528185647.7765-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2024-05-28 21:56:42 +03:00
parent edd27f8ee8
commit 1fea297844
2 changed files with 13 additions and 4 deletions
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16
drivers/gpu/drm/i915/display/intel_vblank.c
View File

@ -312,12 +312,10 @@ static bool i915_get_crtc_scanoutpos(struct drm_crtc *_crtc,
hsync_start = mode->crtc_hsync_start;
vtotal = mode->crtc_vtotal;
vbl_start = intel_mode_vblank_start(mode);
vbl_end = mode->crtc_vblank_end;
vbl_end = intel_mode_vblank_end(mode);
if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
vbl_end /= 2;
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
vtotal /= 2;
}
/*
* Enter vblank critical section, as we will do multiple
@ -584,6 +582,16 @@ int intel_mode_vblank_start(const struct drm_display_mode *mode)
return vblank_start;
}
int intel_mode_vblank_end(const struct drm_display_mode *mode)
{
int vblank_end = mode->crtc_vblank_end;
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
vblank_end /= 2;
return vblank_end;
}
void intel_vblank_evade_init(const struct intel_crtc_state *old_crtc_state,
const struct intel_crtc_state *new_crtc_state,
struct intel_vblank_evade_ctx *evade)

1
drivers/gpu/drm/i915/display/intel_vblank.h
View File

@ -21,6 +21,7 @@ struct intel_vblank_evade_ctx {
};
int intel_mode_vblank_start(const struct drm_display_mode *mode);
int intel_mode_vblank_end(const struct drm_display_mode *mode);
void intel_vblank_evade_init(const struct intel_crtc_state *old_crtc_state,
const struct intel_crtc_state *new_crtc_state,