drm/radeon: Move the early vblank IRQ fixup to radeon_get_crtc_scanoutpos()

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / drm_irq.c

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index e55619f..c2676b5 100644 (file)
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -542,7 +542,7 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc,
 {
        ktime_t stime, etime, mono_time_offset;
        struct timeval tv_etime;
-       int vbl_status, vtotal, vdisplay;
+       int vbl_status;
        int vpos, hpos, i;
        int framedur_ns, linedur_ns, pixeldur_ns, delta_ns, duration_ns;
        bool invbl;
@@ -558,9 +558,6 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc,
                return -EIO;
        }
 
-       vtotal = mode->crtc_vtotal;
-       vdisplay = mode->crtc_vdisplay;
-
        /* Durations of frames, lines, pixels in nanoseconds. */
        framedur_ns = refcrtc->framedur_ns;
        linedur_ns  = refcrtc->linedur_ns;
@@ -569,7 +566,7 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc,
        /* If mode timing undefined, just return as no-op:
         * Happens during initial modesetting of a crtc.
         */
-       if (vtotal <= 0 || vdisplay <= 0 || framedur_ns == 0) {
+       if (framedur_ns == 0) {
                DRM_DEBUG("crtc %d: Noop due to uninitialized mode.\n", crtc);
                return -EAGAIN;
        }
@@ -633,24 +630,6 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc,
         */
        delta_ns = vpos * linedur_ns + hpos * pixeldur_ns;
 
-       /* Is vpos outside nominal vblank area, but less than
-        * 1/100 of a frame height away from start of vblank?
-        * If so, assume this isn't a massively delayed vblank
-        * interrupt, but a vblank interrupt that fired a few
-        * microseconds before true start of vblank. Compensate
-        * by adding a full frame duration to the final timestamp.
-        * Happens, e.g., on ATI R500, R600.
-        *
-        * We only do this if DRM_CALLED_FROM_VBLIRQ.
-        */
-       if ((flags & DRM_CALLED_FROM_VBLIRQ) && !invbl &&
-           ((vdisplay - vpos) < vtotal / 100)) {
-               delta_ns = delta_ns - framedur_ns;
-
-               /* Signal this correction as "applied". */
-               vbl_status |= 0x8;
-       }
-
        if (!drm_timestamp_monotonic)
                etime = ktime_sub(etime, mono_time_offset);