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Message-Id: <20200901203047.1110851-1-r.stratiienko@gmail.com>
Date: Tue, 1 Sep 2020 23:30:47 +0300
From: Roman Stratiienko <r.stratiienko@...il.com>
To: jernej.skrabec@...l.net
Cc: Roman Stratiienko <r.stratiienko@...il.com>, megous@...ous.com,
jernej.skrabec@...il.com, linux-sunxi@...glegroups.com,
dri-devel@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] RFC: sun4i/drm: Swap back U and V channels for DRM_FORMAT_YVU4xx
Fixes: e1ef9006663b ("drm/sun4i: Wire in DE2 YUV support")
Signed-off-by: Roman Stratiienko <r.stratiienko@...il.com>
---
CC: megous@...ous.com
CC: jernej.skrabec@...il.com
CC: linux-sunxi@...glegroups.com
CC: dri-devel@...ts.freedesktop.org
CC: linux-arm-kernel@...ts.infradead.org
CC: linux-kernel@...r.kernel.org
Hi, this patch fixes wrong colors during video playback for me.
Implemented ugly for now, please review/suggest how to improve.
---
drivers/gpu/drm/sun4i/sun8i_mixer.c | 8 +++++++-
drivers/gpu/drm/sun4i/sun8i_mixer.h | 2 +-
drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 2 +-
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 28 +++++++++++++++++++-------
4 files changed, 30 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index dce40c430100..bbbeef44899a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -31,6 +31,7 @@
struct de2_fmt_info {
u32 drm_fmt;
u32 de2_fmt;
+ bool swap_uv;
};
static bool hw_preconfigured;
@@ -219,14 +220,17 @@ static const struct de2_fmt_info de2_formats[] = {
{
.drm_fmt = DRM_FORMAT_YVU422,
.de2_fmt = SUN8I_MIXER_FBFMT_YUV422,
+ .swap_uv = true,
},
{
.drm_fmt = DRM_FORMAT_YVU420,
.de2_fmt = SUN8I_MIXER_FBFMT_YUV420,
+ .swap_uv = true,
},
{
.drm_fmt = DRM_FORMAT_YVU411,
.de2_fmt = SUN8I_MIXER_FBFMT_YUV411,
+ .swap_uv = true,
},
{
.drm_fmt = DRM_FORMAT_P010,
@@ -238,13 +242,15 @@ static const struct de2_fmt_info de2_formats[] = {
},
};
-int sun8i_mixer_drm_format_to_hw(u32 format, u32 *hw_format)
+int sun8i_mixer_drm_format_to_hw(u32 format, u32 *hw_format, bool *swap_uv)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(de2_formats); ++i)
if (de2_formats[i].drm_fmt == format) {
*hw_format = de2_formats[i].de2_fmt;
+ if (swap_uv)
+ *swap_uv = de2_formats[i].swap_uv;
return 0;
}
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index 79a74bca1ea3..6358ffd251f9 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -207,5 +207,5 @@ sun8i_channel_base(struct sun8i_mixer *mixer, int channel)
return DE2_CH_BASE + channel * DE2_CH_SIZE;
}
-int sun8i_mixer_drm_format_to_hw(u32 format, u32 *hw_format);
+int sun8i_mixer_drm_format_to_hw(u32 format, u32 *hw_format, bool *swap_uv);
#endif /* _SUN8I_MIXER_H_ */
diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
index a7f21f08ec89..57bbd9f1071c 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -215,7 +215,7 @@ static int sun8i_ui_layer_update_formats(struct sun8i_mixer *mixer, int channel,
ch_base = sun8i_channel_base(mixer, channel);
fmt = state->fb->format;
- ret = sun8i_mixer_drm_format_to_hw(fmt->format, &hw_fmt);
+ ret = sun8i_mixer_drm_format_to_hw(fmt->format, &hw_fmt, NULL);
if (ret || fmt->is_yuv) {
DRM_DEBUG_DRIVER("Invalid format\n");
return -EINVAL;
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index 3553e38ec642..4da51155c4d5 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -313,7 +313,7 @@ static int sun8i_vi_layer_update_formats(struct sun8i_mixer *mixer, int channel,
ch_base = sun8i_channel_base(mixer, channel);
fmt = state->fb->format;
- ret = sun8i_mixer_drm_format_to_hw(fmt->format, &hw_fmt);
+ ret = sun8i_mixer_drm_format_to_hw(fmt->format, &hw_fmt, NULL);
if (ret) {
DRM_DEBUG_DRIVER("Invalid format\n");
return ret;
@@ -368,8 +368,17 @@ static int sun8i_vi_layer_update_buffer(struct sun8i_mixer *mixer, int channel,
struct drm_gem_cma_object *gem;
u32 dx, dy, src_x, src_y;
dma_addr_t paddr;
+ bool swap_uv;
u32 ch_base;
- int i;
+ u32 hw_fmt;
+ int ret;
+ int i, j;
+
+ ret = sun8i_mixer_drm_format_to_hw(plane->state->fb->format->format, &hw_fmt, &swap_uv);
+ if (ret) {
+ DRM_DEBUG_DRIVER("Invalid format\n");
+ return ret;
+ }
ch_base = sun8i_channel_base(mixer, channel);
@@ -377,7 +386,12 @@ static int sun8i_vi_layer_update_buffer(struct sun8i_mixer *mixer, int channel,
src_x = (state->src.x1 >> 16) & ~(format->hsub - 1);
src_y = (state->src.y1 >> 16) & ~(format->vsub - 1);
- for (i = 0; i < format->num_planes; i++) {
+ for (j = 0; j < format->num_planes; j++) {
+ i = j;
+ if (swap_uv && i > 0 && format->num_planes == 3) {
+ i = j == 1 ? 2 : 1;
+ }
+
/* Get the physical address of the buffer in memory */
gem = drm_fb_cma_get_gem_obj(fb, i);
@@ -400,18 +414,18 @@ static int sun8i_vi_layer_update_buffer(struct sun8i_mixer *mixer, int channel,
/* Set the line width */
DRM_DEBUG_DRIVER("Layer %d. line width: %d bytes\n",
- i + 1, fb->pitches[i]);
+ j + 1, fb->pitches[i]);
regmap_write(mixer->engine.regs,
SUN8I_MIXER_CHAN_VI_LAYER_PITCH(ch_base,
- overlay, i),
+ overlay, j),
fb->pitches[i]);
DRM_DEBUG_DRIVER("Setting %d. buffer address to %pad\n",
- i + 1, &paddr);
+ j + 1, &paddr);
regmap_write(mixer->engine.regs,
SUN8I_MIXER_CHAN_VI_LAYER_TOP_LADDR(ch_base,
- overlay, i),
+ overlay, j),
lower_32_bits(paddr));
}
--
2.25.1
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