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drm: mali-dp: Fix bug on scaling with rotation

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In the case, when the user wants to scale and rotate a layer by 90/270
degrees, the scaling engine input dimensions' parameters ie width and
height needs to be swapped with respect to the layer's input dimensions.
This means scaling engine input height should be set to layer's input
width and scaling engine input width should be set to
layer's input height.

Signed-off-by: Ayan Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Ayan Halder 2017-12-19 16:20:16 +00:00 committed by Liviu Dudau
parent e0521c05c1
commit 6cc3a505dc
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/arm/malidp_crtc.c
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@ -288,8 +288,14 @@ static int malidp_crtc_atomic_check_scaling(struct drm_crtc *crtc,
s->enhancer_enable = ((h_upscale_factor >> 16) >= 2 ||
(v_upscale_factor >> 16) >= 2);
s->input_w = pstate->src_w >> 16;
s->input_h = pstate->src_h >> 16;
if (pstate->rotation & MALIDP_ROTATED_MASK) {
s->input_w = pstate->src_h >> 16;
s->input_h = pstate->src_w >> 16;
} else {
s->input_w = pstate->src_w >> 16;
s->input_h = pstate->src_h >> 16;
}
s->output_w = pstate->crtc_w;
s->output_h = pstate->crtc_h;