[PATCH v5 24/26] drm: sun4i: de33: vi_scaler: add Display Engine 3.3 (DE33) support

Ryan Walklin
2024-09-29T09:13:59Z

The vi_scaler appears to be used in preference to the ui_scaler module
for hardware video scaling in the DE33.

Enable support for this scaler.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Ryan Walklin <ryan@testtoast.com>
---
drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 19 +++++++++++++++----
drivers/gpu/drm/sun4i/sun8i_vi_scaler.c | 7 ++++++-
2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
index 7f1231cf0f012..180be9d67d9c3 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -95,12 +95,23 @@ static int sun8i_ui_layer_update_coord(struct sun8i_mixer *mixer, int channel,
hscale = state->src_w / state->crtc_w;
vscale = state->src_h / state->crtc_h;

- sun8i_ui_scaler_setup(mixer, channel, src_w, src_h, dst_w,
- dst_h, hscale, vscale, hphase, vphase);
- sun8i_ui_scaler_enable(mixer, channel, true);
+ if (mixer->cfg->de_type == sun8i_mixer_de33) {
+ sun8i_vi_scaler_setup(mixer, channel, src_w, src_h,
+ dst_w, dst_h, hscale, vscale,
+ hphase, vphase,
+ state->fb->format);
+ } else {
+ sun8i_ui_scaler_setup(mixer, channel, src_w, src_h,
+ dst_w, dst_h, hscale, vscale,
+ hphase, vphase);
+ sun8i_ui_scaler_enable(mixer, channel, true);
+ }
} else {
DRM_DEBUG_DRIVER("HW scaling is not needed\n");
- sun8i_ui_scaler_enable(mixer, channel, false);
+ if (mixer->cfg->de_type == sun8i_mixer_de33)
+ sun8i_vi_scaler_disable(mixer, channel);
+ else
+ sun8i_ui_scaler_enable(mixer, channel, false);
}

/* Set base coordinates */
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
index e7242301b312c..9c7f6e7d71d50 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
@@ -835,7 +835,9 @@ static const u32 bicubic4coefftab32[480] = {

static u32 sun8i_vi_scaler_base(struct sun8i_mixer *mixer, int channel)
{
- if (mixer->cfg->de_type == sun8i_mixer_de3)
+ if (mixer->cfg->de_type == sun8i_mixer_de33)
+ return sun8i_channel_base(mixer, channel) + 0x3000;
+ else if (mixer->cfg->de_type == sun8i_mixer_de3)
return DE3_VI_SCALER_UNIT_BASE +
DE3_VI_SCALER_UNIT_SIZE * channel;
else
@@ -845,6 +847,9 @@ static u32 sun8i_vi_scaler_base(struct sun8i_mixer *mixer, int channel)

static bool sun8i_vi_scaler_is_vi_plane(struct sun8i_mixer *mixer, int channel)
{
+ if (mixer->cfg->de_type == sun8i_mixer_de33)
+ return mixer->cfg->map[channel] < mixer->cfg->vi_num;
+
return true;
}

--
2.46.1