[PATCH 2/2] drm/komeda: Computing image enhancer internally

From: james qian wang (Arm Technology China)
Date: Mon Jul 08 2019 - 01:38:47 EST


Enable image enhancer when the input data flow is 2x+ upscaling.

Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@xxxxxxx>
---
drivers/gpu/drm/arm/display/komeda/komeda_kms.h | 7 ++-----
drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c | 4 ++++
drivers/gpu/drm/arm/display/komeda/komeda_plane.c | 5 -----
3 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.h b/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
index 0c006576a25c..8c89fc245b83 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.h
@@ -47,11 +47,8 @@ struct komeda_plane_state {
/** @zlist_node: zorder list node */
struct list_head zlist_node;

- /* @img_enhancement: on/off image enhancement
- * @layer_split: on/off layer_split
- */
- u8 img_enhancement : 1,
- layer_split : 1;
+ /** @layer_split: on/off layer_split */
+ u8 layer_split : 1;
};

/**
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
index 972a0f25254d..950235af1e79 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
@@ -806,6 +806,10 @@ void komeda_complete_data_flow_cfg(struct komeda_layer *layer,
dflow->en_scaling = (w != dflow->out_w) || (h != dflow->out_h);
dflow->is_yuv = fb->format->is_yuv;

+ /* try to enable image enhancer if data flow is a 2x+ upscaling */
+ dflow->en_img_enhancement = dflow->out_w >= 2 * w ||
+ dflow->out_h >= 2 * h;
+
/* try to enable split if scaling exceed the scaler's acceptable
* input/output range.
*/
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
index b1386438357b..c095af154216 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
@@ -18,7 +18,6 @@ komeda_plane_init_data_flow(struct drm_plane_state *st,
struct komeda_data_flow_cfg *dflow)
{
struct komeda_plane *kplane = to_kplane(st->plane);
- struct komeda_plane_state *kplane_st = to_kplane_st(st);
struct drm_framebuffer *fb = st->fb;
const struct komeda_format_caps *caps = to_kfb(fb)->format_caps;
struct komeda_pipeline *pipe = kplane->layer->base.pipeline;
@@ -57,8 +56,6 @@ komeda_plane_init_data_flow(struct drm_plane_state *st,
return -EINVAL;
}

- dflow->en_img_enhancement = !!kplane_st->img_enhancement;
-
komeda_complete_data_flow_cfg(kplane->layer, dflow, fb);

return 0;
@@ -174,8 +171,6 @@ komeda_plane_atomic_duplicate_state(struct drm_plane *plane)

old = to_kplane_st(plane->state);

- new->img_enhancement = old->img_enhancement;
-
return &new->base;
}

--
2.20.1