[PATCH] drm/sun4i: mixer: fix scanline for V3s and D1

Genfu Pan
2022-05-21T13:35:11Z

Accrording the SDK from Allwinner, the scanline value of yuv and rgb for
V3s are both 1024. The is also the same for mixer 1 of D1. Currently the
scanline value of rgb is hardcoded to 2048 for all SOCs.

Change the scanline_yuv property of V3s to 1024. Add the scanline_rgb
property to the mixer config and replace the hardcoded value with it before
scaling.

Signed-off-by: Genfu Pan <benlypan@gmail.com>
---
drivers/gpu/drm/sun4i/sun8i_mixer.c | 13 ++++++++++++-
drivers/gpu/drm/sun4i/sun8i_mixer.h | 1 +
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 3 +--
3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 875a1156c..e64e08207 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -567,6 +567,7 @@ static const struct sun8i_mixer_cfg sun8i_a83t_mixer0_cfg = {
.ccsc = CCSC_MIXER0_LAYOUT,
.scaler_mask = 0xf,
.scanline_yuv = 2048,
+ .scanline_rgb = 2048,
.ui_num = 3,
.vi_num = 1,
};
@@ -575,6 +576,7 @@ static const struct sun8i_mixer_cfg sun8i_a83t_mixer1_cfg = {
.ccsc = CCSC_MIXER1_LAYOUT,
.scaler_mask = 0x3,
.scanline_yuv = 2048,
+ .scanline_rgb = 2048,
.ui_num = 1,
.vi_num = 1,
};
@@ -584,6 +586,7 @@ static const struct sun8i_mixer_cfg sun8i_h3_mixer0_cfg = {
.mod_rate = 432000000,
.scaler_mask = 0xf,
.scanline_yuv = 2048,
+ .scanline_rgb = 2048,
.ui_num = 3,
.vi_num = 1,
};
@@ -593,6 +596,7 @@ static const struct sun8i_mixer_cfg sun8i_r40_mixer0_cfg = {
.mod_rate = 297000000,
.scaler_mask = 0xf,
.scanline_yuv = 2048,
+ .scanline_rgb = 2048,
.ui_num = 3,
.vi_num = 1,
};
@@ -602,6 +606,7 @@ static const struct sun8i_mixer_cfg sun8i_r40_mixer1_cfg = {
.mod_rate = 297000000,
.scaler_mask = 0x3,
.scanline_yuv = 2048,
+ .scanline_rgb = 2048,
.ui_num = 1,
.vi_num = 1,
};
@@ -610,7 +615,8 @@ static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = {
.vi_num = 2,
.ui_num = 1,
.scaler_mask = 0x3,
- .scanline_yuv = 2048,
+ .scanline_yuv = 1024,
+ .scanline_rgb = 1024,
.ccsc = CCSC_MIXER0_LAYOUT,
.mod_rate = 150000000,
};
@@ -620,6 +626,7 @@ static const struct sun8i_mixer_cfg sun20i_d1_mixer0_cfg = {
.mod_rate = 297000000,
.scaler_mask = 0x3,
.scanline_yuv = 2048,
+ .scanline_rgb = 2048,
.ui_num = 1,
.vi_num = 1,
};
@@ -629,6 +636,7 @@ static const struct sun8i_mixer_cfg sun20i_d1_mixer1_cfg = {
.mod_rate = 297000000,
.scaler_mask = 0x1,
.scanline_yuv = 1024,
+ .scanline_rgb = 1024,
.ui_num = 0,
.vi_num = 1,
};
@@ -638,6 +646,7 @@ static const struct sun8i_mixer_cfg sun50i_a64_mixer0_cfg = {
.mod_rate = 297000000,
.scaler_mask = 0xf,
.scanline_yuv = 4096,
+ .scanline_rgb = 2048,
.ui_num = 3,
.vi_num = 1,
};
@@ -647,6 +656,7 @@ static const struct sun8i_mixer_cfg sun50i_a64_mixer1_cfg = {
.mod_rate = 297000000,
.scaler_mask = 0x3,
.scanline_yuv = 2048,
+ .scanline_rgb = 2048,
.ui_num = 1,
.vi_num = 1,
};
@@ -657,6 +667,7 @@ static const struct sun8i_mixer_cfg sun50i_h6_mixer0_cfg = {
.mod_rate = 600000000,
.scaler_mask = 0xf,
.scanline_yuv = 4096,
+ .scanline_rgb = 2048,
.ui_num = 3,
.vi_num = 1,
};
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index 85c94884f..c01b3e9d6 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -172,6 +172,7 @@ struct sun8i_mixer_cfg {
unsigned long mod_rate;
unsigned int is_de3 : 1;
unsigned int scanline_yuv;
+ unsigned int scanline_rgb;
};

struct sun8i_mixer {
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index f7d0b082d..30e6bde92 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -188,8 +188,7 @@ static int sun8i_vi_layer_update_coord(struct sun8i_mixer *mixer, int channel,
src_h = vn;
}

- /* it seems that every RGB scaler has buffer for 2048 pixels */
- scanline = subsampled ? mixer->cfg->scanline_yuv : 2048;
+ scanline = subsampled ? mixer->cfg->scanline_yuv : mixer->cfg->scanline_rgb;

if (src_w > scanline) {
DRM_DEBUG_DRIVER("Using horizontal coarse scaling\n");
--
2.36.0