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drm/malidp: Fix smart layer when doing pm_suspend/resume 

Smart layer enable rectangles is set to 1 when the driver is probed,
however when doing pm_suspend the value is lost and it's not set again
making the SMART_LAYER unusable, fix that by initializing the number
of rectangles everytime we do a plane update.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Alexandru Gheorghe 2018-09-21 14:39:44 +01:00 committed by Liviu Dudau
parent b11507815d
commit 791d54fa05
1 changed files with 8 additions and 7 deletions
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15
drivers/gpu/drm/arm/malidp_planes.c
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@ -366,10 +366,17 @@ static void malidp_de_plane_update(struct drm_plane *plane,
LAYER_V_VAL(plane->state->crtc_y),
mp->layer->base + MALIDP_LAYER_OFFSET);
if (mp->layer->id == DE_SMART)
if (mp->layer->id == DE_SMART) {
/*
* Enable the first rectangle in the SMART layer to be
* able to use it as a drm plane.
*/
malidp_hw_write(mp->hwdev, 1,
mp->layer->base + MALIDP550_LS_ENABLE);
malidp_hw_write(mp->hwdev,
LAYER_H_VAL(src_w) | LAYER_V_VAL(src_h),
mp->layer->base + MALIDP550_LS_R1_IN_SIZE);
}
/* first clear the rotation bits */
val = malidp_hw_read(mp->hwdev, mp->layer->base + MALIDP_LAYER_CONTROL);
@ -484,12 +491,6 @@ int malidp_de_planes_init(struct drm_device *drm)
plane->layer = &map->layers[i];
if (id == DE_SMART) {
/*
* Enable the first rectangle in the SMART layer to be
* able to use it as a drm plane.
*/
malidp_hw_write(malidp->dev, 1,
plane->layer->base + MALIDP550_LS_ENABLE);
/* Skip the features which the SMART layer doesn't have. */
continue;
}