On Thu, Jul 30, 2020 at 6:39 AM Kalyan Thota kalyan_t@codeaurora.org wrote:
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
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 6379fe1..e46dcb9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -946,9 +946,9 @@ 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);
Right, I can see how the drm convention of scaling factor being from dest to src (ie 2x scaling up src to dst is as scale factor of 0.5). Thanks for fixing this,
Tested-by: Kristian H. Kristensen hoegsberg@google.com Reviewed-by: Kristian H. Kristensen hoegsberg@google.com
-- 1.9.1