From 0da274be0b6c618aff1fb5a0cf77c7ee961b9ae5 Mon Sep 17 00:00:00 2001
From: Kalyan Thota <kalyan_t@codeaurora.org>
Date: Thu, 30 Jul 2020 19:08:56 +0530
Subject: drm/msm/dpu: Fix scale params in plane validation
Git-commit: 4c978caf08aa155bdeadd9e2d4b026d4ce97ebd0
Patch-mainline: v5.9-rc3
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Plane validation uses an API drm_calc_scale which will
return src/dst value as a scale ratio.
when viewing the range on a scale the values should fall in as
Upscale ratio < Unity scale < Downscale ratio for src/dst formula
Fix the min and max scale ratios to suit the API accordingly.
Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
Tested-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 33f6c56f01ed..29e373d2e7b5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -866,9 +866,9 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
crtc_state = drm_atomic_get_new_crtc_state(state->state,
state->crtc);
- min_scale = FRAC_16_16(1, pdpu->pipe_sblk->maxdwnscale);
+ min_scale = FRAC_16_16(1, pdpu->pipe_sblk->maxupscale);
ret = drm_atomic_helper_check_plane_state(state, crtc_state, min_scale,
- pdpu->pipe_sblk->maxupscale << 16,
+ pdpu->pipe_sblk->maxdwnscale << 16,
true, true);
if (ret) {
DPU_DEBUG_PLANE(pdpu, "Check plane state failed (%d)\n", ret);
--
2.29.2