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-rw-r--r--drivers/gpu/drm/sun4i/sun4i_backend.c106
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_backend.h3
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_drv.c12
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_frontend.c113
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_frontend.h11
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_layer.c15
-rw-r--r--drivers/gpu/drm/sun4i/sun8i_ui_layer.c2
-rw-r--r--drivers/gpu/drm/sun4i/sun8i_vi_layer.c2
8 files changed, 219 insertions, 45 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
index bf49c55b0f2c..9e9255ee59cd 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -48,8 +48,12 @@ static const u32 sunxi_rgb2yuv_coef[12] = {
/*
* These coefficients are taken from the A33 BSP from Allwinner.
*
- * The formula is for each component, each coefficient being multiplied by
- * 1024 and each constant being multiplied by 16:
+ * The first three values of each row are coded as 13-bit signed fixed-point
+ * numbers, with 10 bits for the fractional part. The fourth value is a
+ * constant coded as a 14-bit signed fixed-point number with 4 bits for the
+ * fractional part.
+ *
+ * The values in table order give the following colorspace translation:
* G = 1.164 * Y - 0.391 * U - 0.813 * V + 135
* R = 1.164 * Y + 1.596 * V - 222
* B = 1.164 * Y + 2.018 * U + 276
@@ -155,6 +159,36 @@ static int sun4i_backend_drm_format_to_layer(u32 format, u32 *mode)
return 0;
}
+static const uint32_t sun4i_backend_formats[] = {
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_ARGB4444,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_RGBA4444,
+ DRM_FORMAT_RGBA5551,
+ DRM_FORMAT_UYVY,
+ DRM_FORMAT_VYUY,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_YUYV,
+ DRM_FORMAT_YVYU,
+};
+
+bool sun4i_backend_format_is_supported(uint32_t fmt, uint64_t modifier)
+{
+ unsigned int i;
+
+ if (modifier != DRM_FORMAT_MOD_LINEAR)
+ return false;
+
+ for (i = 0; i < ARRAY_SIZE(sun4i_backend_formats); i++)
+ if (sun4i_backend_formats[i] == fmt)
+ return true;
+
+ return false;
+}
+
int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
int layer, struct drm_plane *plane)
{
@@ -395,6 +429,15 @@ int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend, int layer,
return 0;
}
+void sun4i_backend_cleanup_layer(struct sun4i_backend *backend,
+ int layer)
+{
+ regmap_update_bits(backend->engine.regs,
+ SUN4I_BACKEND_ATTCTL_REG0(layer),
+ SUN4I_BACKEND_ATTCTL_REG0_LAY_VDOEN |
+ SUN4I_BACKEND_ATTCTL_REG0_LAY_YUVEN, 0);
+}
+
static bool sun4i_backend_plane_uses_scaler(struct drm_plane_state *state)
{
u16 src_h = state->src_h >> 16;
@@ -413,11 +456,50 @@ static bool sun4i_backend_plane_uses_frontend(struct drm_plane_state *state)
{
struct sun4i_layer *layer = plane_to_sun4i_layer(state->plane);
struct sun4i_backend *backend = layer->backend;
+ uint32_t format = state->fb->format->format;
+ uint64_t modifier = state->fb->modifier;
if (IS_ERR(backend->frontend))
return false;
- return sun4i_backend_plane_uses_scaler(state);
+ if (!sun4i_frontend_format_is_supported(format, modifier))
+ return false;
+
+ if (!sun4i_backend_format_is_supported(format, modifier))
+ return true;
+
+ /*
+ * TODO: The backend alone allows 2x and 4x integer scaling, including
+ * support for an alpha component (which the frontend doesn't support).
+ * Use the backend directly instead of the frontend in this case, with
+ * another test to return false.
+ */
+
+ if (sun4i_backend_plane_uses_scaler(state))
+ return true;
+
+ /*
+ * Here the format is supported by both the frontend and the backend
+ * and no frontend scaling is required, so use the backend directly.
+ */
+ return false;
+}
+
+static bool sun4i_backend_plane_is_supported(struct drm_plane_state *state,
+ bool *uses_frontend)
+{
+ if (sun4i_backend_plane_uses_frontend(state)) {
+ *uses_frontend = true;
+ return true;
+ }
+
+ *uses_frontend = false;
+
+ /* Scaling is not supported without the frontend. */
+ if (sun4i_backend_plane_uses_scaler(state))
+ return false;
+
+ return true;
}
static void sun4i_backend_atomic_begin(struct sunxi_engine *engine,
@@ -460,14 +542,19 @@ static int sun4i_backend_atomic_check(struct sunxi_engine *engine,
struct drm_framebuffer *fb = plane_state->fb;
struct drm_format_name_buf format_name;
- if (sun4i_backend_plane_uses_frontend(plane_state)) {
+ if (!sun4i_backend_plane_is_supported(plane_state,
+ &layer_state->uses_frontend))
+ return -EINVAL;
+
+ if (layer_state->uses_frontend) {
DRM_DEBUG_DRIVER("Using the frontend for plane %d\n",
plane->index);
-
- layer_state->uses_frontend = true;
num_frontend_planes++;
} else {
- layer_state->uses_frontend = false;
+ if (fb->format->is_yuv) {
+ DRM_DEBUG_DRIVER("Plane FB format is YUV\n");
+ num_yuv_planes++;
+ }
}
DRM_DEBUG_DRIVER("Plane FB format is %s\n",
@@ -476,11 +563,6 @@ static int sun4i_backend_atomic_check(struct sunxi_engine *engine,
if (fb->format->has_alpha || (plane_state->alpha != DRM_BLEND_ALPHA_OPAQUE))
num_alpha_planes++;
- if (fb->format->is_yuv) {
- DRM_DEBUG_DRIVER("Plane FB format is YUV\n");
- num_yuv_planes++;
- }
-
DRM_DEBUG_DRIVER("Plane zpos is %d\n",
plane_state->normalized_zpos);
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.h b/drivers/gpu/drm/sun4i/sun4i_backend.h
index e3d4c6035eb2..01f66463271b 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.h
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.h
@@ -198,6 +198,7 @@ engine_to_sun4i_backend(struct sunxi_engine *engine)
void sun4i_backend_layer_enable(struct sun4i_backend *backend,
int layer, bool enable);
+bool sun4i_backend_format_is_supported(uint32_t fmt, uint64_t modifier);
int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
int layer, struct drm_plane *plane);
int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
@@ -208,5 +209,7 @@ int sun4i_backend_update_layer_frontend(struct sun4i_backend *backend,
int layer, uint32_t in_fmt);
int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend,
int layer, struct drm_plane *plane);
+void sun4i_backend_cleanup_layer(struct sun4i_backend *backend,
+ int layer);
#endif /* _SUN4I_BACKEND_H_ */
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index ef773d36baf0..ccdeae6299eb 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -28,6 +28,16 @@
#include "sun4i_tcon.h"
#include "sun8i_tcon_top.h"
+static int drm_sun4i_gem_dumb_create(struct drm_file *file_priv,
+ struct drm_device *drm,
+ struct drm_mode_create_dumb *args)
+{
+ /* The hardware only allows even pitches for YUV buffers. */
+ args->pitch = ALIGN(DIV_ROUND_UP(args->width * args->bpp, 8), 2);
+
+ return drm_gem_cma_dumb_create_internal(file_priv, drm, args);
+}
+
DEFINE_DRM_GEM_CMA_FOPS(sun4i_drv_fops);
static struct drm_driver sun4i_drv_driver = {
@@ -42,7 +52,7 @@ static struct drm_driver sun4i_drv_driver = {
.minor = 0,
/* GEM Operations */
- .dumb_create = drm_gem_cma_dumb_create,
+ .dumb_create = drm_sun4i_gem_dumb_create,
.gem_free_object_unlocked = drm_gem_cma_free_object,
.gem_vm_ops = &drm_gem_cma_vm_ops,
diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c
index ddf6cfa6dd23..1a7ebc45747e 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c
@@ -107,8 +107,34 @@ EXPORT_SYMBOL(sun4i_frontend_update_buffer);
static int sun4i_frontend_drm_format_to_input_fmt(uint32_t fmt, u32 *val)
{
switch (fmt) {
- case DRM_FORMAT_ARGB8888:
- *val = 5;
+ case DRM_FORMAT_XRGB8888:
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB;
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int sun4i_frontend_drm_format_to_input_mode(uint32_t fmt, u32 *val)
+{
+ if (drm_format_num_planes(fmt) == 1)
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_PACKED;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static int sun4i_frontend_drm_format_to_input_sequence(uint32_t fmt, u32 *val)
+{
+ switch (fmt) {
+ case DRM_FORMAT_BGRX8888:
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_BGRX;
+ return 0;
+
+ case DRM_FORMAT_XRGB8888:
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB;
return 0;
default:
@@ -119,9 +145,12 @@ static int sun4i_frontend_drm_format_to_input_fmt(uint32_t fmt, u32 *val)
static int sun4i_frontend_drm_format_to_output_fmt(uint32_t fmt, u32 *val)
{
switch (fmt) {
+ case DRM_FORMAT_BGRX8888:
+ *val = SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_BGRX8888;
+ return 0;
+
case DRM_FORMAT_XRGB8888:
- case DRM_FORMAT_ARGB8888:
- *val = 2;
+ *val = SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_XRGB8888;
return 0;
default:
@@ -129,22 +158,54 @@ static int sun4i_frontend_drm_format_to_output_fmt(uint32_t fmt, u32 *val)
}
}
+static const uint32_t sun4i_frontend_formats[] = {
+ DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_XRGB8888,
+};
+
+bool sun4i_frontend_format_is_supported(uint32_t fmt, uint64_t modifier)
+{
+ unsigned int i;
+
+ if (modifier != DRM_FORMAT_MOD_LINEAR)
+ return false;
+
+ for (i = 0; i < ARRAY_SIZE(sun4i_frontend_formats); i++)
+ if (sun4i_frontend_formats[i] == fmt)
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL(sun4i_frontend_format_is_supported);
+
int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
struct drm_plane *plane, uint32_t out_fmt)
{
struct drm_plane_state *state = plane->state;
struct drm_framebuffer *fb = state->fb;
+ uint32_t format = fb->format->format;
u32 out_fmt_val;
- u32 in_fmt_val;
+ u32 in_fmt_val, in_mod_val, in_ps_val;
int ret;
- ret = sun4i_frontend_drm_format_to_input_fmt(fb->format->format,
- &in_fmt_val);
+ ret = sun4i_frontend_drm_format_to_input_fmt(format, &in_fmt_val);
if (ret) {
DRM_DEBUG_DRIVER("Invalid input format\n");
return ret;
}
+ ret = sun4i_frontend_drm_format_to_input_mode(format, &in_mod_val);
+ if (ret) {
+ DRM_DEBUG_DRIVER("Invalid input mode\n");
+ return ret;
+ }
+
+ ret = sun4i_frontend_drm_format_to_input_sequence(format, &in_ps_val);
+ if (ret) {
+ DRM_DEBUG_DRIVER("Invalid pixel sequence\n");
+ return ret;
+ }
+
ret = sun4i_frontend_drm_format_to_output_fmt(out_fmt, &out_fmt_val);
if (ret) {
DRM_DEBUG_DRIVER("Invalid output format\n");
@@ -162,10 +223,12 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE1_REG, 0x400);
regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE1_REG, 0x400);
+ regmap_update_bits(frontend->regs, SUN4I_FRONTEND_BYPASS_REG,
+ SUN4I_FRONTEND_BYPASS_CSC_EN,
+ SUN4I_FRONTEND_BYPASS_CSC_EN);
+
regmap_write(frontend->regs, SUN4I_FRONTEND_INPUT_FMT_REG,
- SUN4I_FRONTEND_INPUT_FMT_DATA_MOD(1) |
- SUN4I_FRONTEND_INPUT_FMT_DATA_FMT(in_fmt_val) |
- SUN4I_FRONTEND_INPUT_FMT_PS(1));
+ in_mod_val | in_fmt_val | in_ps_val);
/*
* TODO: It look like the A31 and A80 at least will need the
@@ -173,7 +236,7 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
* ARGB8888).
*/
regmap_write(frontend->regs, SUN4I_FRONTEND_OUTPUT_FMT_REG,
- SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT(out_fmt_val));
+ out_fmt_val);
return 0;
}
@@ -183,16 +246,24 @@ void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,
struct drm_plane *plane)
{
struct drm_plane_state *state = plane->state;
+ struct drm_framebuffer *fb = state->fb;
+ uint32_t luma_width, luma_height;
+ uint32_t chroma_width, chroma_height;
/* Set height and width */
DRM_DEBUG_DRIVER("Frontend size W: %u H: %u\n",
state->crtc_w, state->crtc_h);
+
+ luma_width = state->src_w >> 16;
+ luma_height = state->src_h >> 16;
+
+ chroma_width = DIV_ROUND_UP(luma_width, fb->format->hsub);
+ chroma_height = DIV_ROUND_UP(luma_height, fb->format->vsub);
+
regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_INSIZE_REG,
- SUN4I_FRONTEND_INSIZE(state->src_h >> 16,
- state->src_w >> 16));
+ SUN4I_FRONTEND_INSIZE(luma_height, luma_width));
regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_INSIZE_REG,
- SUN4I_FRONTEND_INSIZE(state->src_h >> 16,
- state->src_w >> 16));
+ SUN4I_FRONTEND_INSIZE(chroma_height, chroma_width));
regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_OUTSIZE_REG,
SUN4I_FRONTEND_OUTSIZE(state->crtc_h, state->crtc_w));
@@ -200,14 +271,14 @@ void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,
SUN4I_FRONTEND_OUTSIZE(state->crtc_h, state->crtc_w));
regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZFACT_REG,
- state->src_w / state->crtc_w);
+ (luma_width << 16) / state->crtc_w);
regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZFACT_REG,
- state->src_w / state->crtc_w);
+ (chroma_width << 16) / state->crtc_w);
regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTFACT_REG,
- state->src_h / state->crtc_h);
+ (luma_height << 16) / state->crtc_h);
regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTFACT_REG,
- state->src_h / state->crtc_h);
+ (chroma_height << 16) / state->crtc_h);
regmap_write_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG,
SUN4I_FRONTEND_FRM_CTRL_REG_RDY,
@@ -339,10 +410,6 @@ static int sun4i_frontend_runtime_resume(struct device *dev)
SUN4I_FRONTEND_EN_EN,
SUN4I_FRONTEND_EN_EN);
- regmap_update_bits(frontend->regs, SUN4I_FRONTEND_BYPASS_REG,
- SUN4I_FRONTEND_BYPASS_CSC_EN,
- SUN4I_FRONTEND_BYPASS_CSC_EN);
-
sun4i_frontend_scaler_init(frontend);
return 0;
diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.h b/drivers/gpu/drm/sun4i/sun4i_frontend.h
index 02661ce81f3e..ad146e8d8d70 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.h
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.h
@@ -26,12 +26,14 @@
#define SUN4I_FRONTEND_LINESTRD0_REG 0x040
#define SUN4I_FRONTEND_INPUT_FMT_REG 0x04c
-#define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD(mod) ((mod) << 8)
-#define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT(fmt) ((fmt) << 4)
-#define SUN4I_FRONTEND_INPUT_FMT_PS(ps) (ps)
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_PACKED (1 << 8)
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB (5 << 4)
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_BGRX 0
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB 1
#define SUN4I_FRONTEND_OUTPUT_FMT_REG 0x05c
-#define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT(fmt) (fmt)
+#define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_BGRX8888 1
+#define SUN4I_FRONTEND_OUTPUT_FMT_DATA_FMT_XRGB8888 2
#define SUN4I_FRONTEND_CH0_INSIZE_REG 0x100
#define SUN4I_FRONTEND_INSIZE(h, w) ((((h) - 1) << 16) | (((w) - 1)))
@@ -95,5 +97,6 @@ void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,
struct drm_plane *plane);
int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
struct drm_plane *plane, uint32_t out_fmt);
+bool sun4i_frontend_format_is_supported(uint32_t fmt, uint64_t modifier);
#endif /* _SUN4I_FRONTEND_H_ */
diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c
index 78f77af8805a..29631e0efde3 100644
--- a/drivers/gpu/drm/sun4i/sun4i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
@@ -12,6 +12,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drmP.h>
#include "sun4i_backend.h"
@@ -92,14 +93,16 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane,
struct sun4i_backend *backend = layer->backend;
struct sun4i_frontend *frontend = backend->frontend;
+ sun4i_backend_cleanup_layer(backend, layer->id);
+
if (layer_state->uses_frontend) {
sun4i_frontend_init(frontend);
sun4i_frontend_update_coord(frontend, plane);
sun4i_frontend_update_buffer(frontend, plane);
sun4i_frontend_update_formats(frontend, plane,
- DRM_FORMAT_ARGB8888);
+ DRM_FORMAT_XRGB8888);
sun4i_backend_update_layer_frontend(backend, layer->id,
- DRM_FORMAT_ARGB8888);
+ DRM_FORMAT_XRGB8888);
sun4i_frontend_enable(frontend);
} else {
sun4i_backend_update_layer_formats(backend, layer->id, plane);
@@ -112,6 +115,7 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane,
}
static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = {
+ .prepare_fb = drm_gem_fb_prepare_fb,
.atomic_disable = sun4i_backend_layer_atomic_disable,
.atomic_update = sun4i_backend_layer_atomic_update,
};
@@ -125,10 +129,11 @@ static const struct drm_plane_funcs sun4i_backend_layer_funcs = {
.update_plane = drm_atomic_helper_update_plane,
};
-static const uint32_t sun4i_backend_layer_formats[] = {
+static const uint32_t sun4i_layer_formats[] = {
DRM_FORMAT_ARGB8888,
DRM_FORMAT_ARGB4444,
DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_BGRX8888,
DRM_FORMAT_RGBA5551,
DRM_FORMAT_RGBA4444,
DRM_FORMAT_RGB888,
@@ -154,8 +159,8 @@ static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm,
/* possible crtcs are set later */
ret = drm_universal_plane_init(drm, &layer->plane, 0,
&sun4i_backend_layer_funcs,
- sun4i_backend_layer_formats,
- ARRAY_SIZE(sun4i_backend_layer_formats),
+ sun4i_layer_formats,
+ ARRAY_SIZE(sun4i_layer_formats),
NULL, type, NULL);
if (ret) {
dev_err(drm->dev, "Couldn't initialize layer\n");
diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
index e3fc8fa920fb..18534263a05d 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -19,6 +19,7 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drmP.h>
@@ -300,6 +301,7 @@ static void sun8i_ui_layer_atomic_update(struct drm_plane *plane,
}
static struct drm_plane_helper_funcs sun8i_ui_layer_helper_funcs = {
+ .prepare_fb = drm_gem_fb_prepare_fb,
.atomic_check = sun8i_ui_layer_atomic_check,
.atomic_disable = sun8i_ui_layer_atomic_disable,
.atomic_update = sun8i_ui_layer_atomic_update,
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index 4249edfb47ed..87be898f9b7a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -13,6 +13,7 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drmP.h>
@@ -336,6 +337,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
}
static struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
+ .prepare_fb = drm_gem_fb_prepare_fb,
.atomic_check = sun8i_vi_layer_atomic_check,
.atomic_disable = sun8i_vi_layer_atomic_disable,
.atomic_update = sun8i_vi_layer_atomic_update,
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