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Subject[PATCH 07/17] drm/sun4i: Add support for all HW supported DE2 RGB formats
Date
Currently only a few RGB formats are supported by the DE2 driver. Add
support for all formats supported by the HW.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/sun4i/sun8i_layer.c | 19 ++++-
drivers/gpu/drm/sun4i/sun8i_mixer.c | 134 ++++++++++++++++++++++++++++--------
drivers/gpu/drm/sun4i/sun8i_mixer.h | 17 +++++
3 files changed, 139 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_layer.c b/drivers/gpu/drm/sun4i/sun8i_layer.c
index 371d6b359262..49ccdd0149bd 100644
--- a/drivers/gpu/drm/sun4i/sun8i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_layer.c
@@ -89,8 +89,25 @@ static const struct drm_plane_funcs sun8i_mixer_layer_funcs = {
};

static const uint32_t sun8i_mixer_layer_formats[] = {
- DRM_FORMAT_RGB888,
+ DRM_FORMAT_ABGR1555,
+ DRM_FORMAT_ABGR4444,
+ DRM_FORMAT_ABGR8888,
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_ARGB4444,
DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_BGR565,
+ DRM_FORMAT_BGR888,
+ DRM_FORMAT_BGRA5551,
+ DRM_FORMAT_BGRA4444,
+ DRM_FORMAT_BGRA8888,
+ DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_RGBA4444,
+ DRM_FORMAT_RGBA5551,
+ DRM_FORMAT_RGBA8888,
+ DRM_FORMAT_RGBX8888,
+ DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888,
};

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index c1b7685603fe..fe81c048cc08 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -29,6 +29,105 @@
#include "sun8i_layer.h"
#include "sunxi_engine.h"

+struct de2_fmt_info {
+ u32 drm_fmt;
+ u32 de2_fmt;
+};
+
+static const struct de2_fmt_info de2_formats[] = {
+ {
+ .drm_fmt = DRM_FORMAT_ARGB8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ARGB8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_ABGR8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ABGR8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_RGBA8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGBA8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_BGRA8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGRA8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_XRGB8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_XRGB8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_XBGR8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_XBGR8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_RGBX8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGBX8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_BGRX8888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGRX8888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_RGB888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGB888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_BGR888,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGR888,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_RGB565,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGB565,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_BGR565,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGR565,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_ARGB4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ARGB4444,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_ABGR4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ABGR4444,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_RGBA4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGBA4444,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_BGRA4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGRA4444,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_ARGB1555,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ARGB1555,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_ABGR1555,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ABGR1555,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_RGBA5551,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGBA5551,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_BGRA5551,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGRA5551,
+ },
+};
+
+static const struct de2_fmt_info *sun8i_mixer_format_info(u32 format)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(de2_formats); ++i)
+ if (de2_formats[i].drm_fmt == format)
+ return &de2_formats[i];
+
+ return NULL;
+}
+
static void sun8i_mixer_commit(struct sunxi_engine *engine)
{
DRM_DEBUG_DRIVER("Committing changes\n");
@@ -63,29 +162,6 @@ void sun8i_mixer_layer_enable(struct sun8i_mixer *mixer,
SUN8I_MIXER_BLEND_PIPE_CTL_EN(layer), val);
}

-static int sun8i_mixer_drm_format_to_layer(struct drm_plane *plane,
- u32 format, u32 *mode)
-{
- switch (format) {
- case DRM_FORMAT_ARGB8888:
- *mode = SUN8I_MIXER_FBFMT_ARGB8888;
- break;
-
- case DRM_FORMAT_XRGB8888:
- *mode = SUN8I_MIXER_FBFMT_XRGB8888;
- break;
-
- case DRM_FORMAT_RGB888:
- *mode = SUN8I_MIXER_FBFMT_RGB888;
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer,
int layer, struct drm_plane *plane)
{
@@ -158,18 +234,16 @@ int sun8i_mixer_update_layer_formats(struct sun8i_mixer *mixer,
int layer, struct drm_plane *plane)
{
struct drm_plane_state *state = plane->state;
- struct drm_framebuffer *fb = state->fb;
+ const struct de2_fmt_info *fmt_info;
u32 val;
- int ret;

- ret = sun8i_mixer_drm_format_to_layer(plane, fb->format->format,
- &val);
- if (ret) {
+ fmt_info = sun8i_mixer_format_info(state->fb->format->format);
+ if (!fmt_info) {
DRM_DEBUG_DRIVER("Invalid format\n");
- return ret;
+ return -EINVAL;
}

- val <<= SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_OFFSET;
+ val = fmt_info->de2_fmt << SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_OFFSET;
regmap_update_bits(mixer->engine.regs,
SUN8I_MIXER_CHAN_UI_LAYER_ATTR(layer, 0),
SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_MASK, val);
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index 76f0b2bd91e2..caebd9cc550f 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -82,8 +82,25 @@
#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MASK GENMASK(31, 24)

#define SUN8I_MIXER_FBFMT_ARGB8888 0
+#define SUN8I_MIXER_FBFMT_ABGR8888 1
+#define SUN8I_MIXER_FBFMT_RGBA8888 2
+#define SUN8I_MIXER_FBFMT_BGRA8888 3
#define SUN8I_MIXER_FBFMT_XRGB8888 4
+#define SUN8I_MIXER_FBFMT_XBGR8888 5
+#define SUN8I_MIXER_FBFMT_RGBX8888 6
+#define SUN8I_MIXER_FBFMT_BGRX8888 7
#define SUN8I_MIXER_FBFMT_RGB888 8
+#define SUN8I_MIXER_FBFMT_BGR888 9
+#define SUN8I_MIXER_FBFMT_RGB565 10
+#define SUN8I_MIXER_FBFMT_BGR565 11
+#define SUN8I_MIXER_FBFMT_ARGB4444 12
+#define SUN8I_MIXER_FBFMT_ABGR4444 13
+#define SUN8I_MIXER_FBFMT_RGBA4444 14
+#define SUN8I_MIXER_FBFMT_BGRA4444 15
+#define SUN8I_MIXER_FBFMT_ARGB1555 16
+#define SUN8I_MIXER_FBFMT_ABGR1555 17
+#define SUN8I_MIXER_FBFMT_RGBA5551 18
+#define SUN8I_MIXER_FBFMT_BGRA5551 19

/*
* These sub-engines are still unknown now, the EN registers are here only to
--
2.15.0
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