// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright © 2018-2020 Intel Corporation
*/
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_blend.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fb_dma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_dma_helper.h>
#include <drm/drm_managed.h>
#include "kmb_drv.h"
#include "kmb_plane.h"
#include "kmb_regs.h"
const u32 layer_irqs[] = {
LCD_INT_VL0,
LCD_INT_VL1,
LCD_INT_GL0,
LCD_INT_GL1
};
/* Conversion (yuv->rgb) matrix from myriadx */
static const u32 csc_coef_lcd[] = {
1024, 0, 1436,
1024, -352, -731,
1024, 1814, 0,
-179, 125, -226
};
/* Graphics layer (layers 2 & 3) formats, only packed formats are supported */
static const u32 kmb_formats_g[] = {
DRM_FORMAT_RGB332,
DRM_FORMAT_XRGB4444, DRM_FORMAT_XBGR4444,
DRM_FORMAT_ARGB4444, DRM_FORMAT_ABGR4444,
DRM_FORMAT_XRGB1555, DRM_FORMAT_XBGR1555,
DRM_FORMAT_ARGB1555, DRM_FORMAT_ABGR1555,
DRM_FORMAT_RGB565, DRM_FORMAT_BGR565,
DRM_FORMAT_RGB888, DRM_FORMAT_BGR888,
DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR8888,
DRM_FORMAT_ARGB8888, DRM_FORMAT_ABGR8888,
};
/* Video layer ( 0 & 1) formats, packed and planar formats are supported */
static const u32 kmb_formats_v[] = {
/* packed formats */
DRM_FORMAT_RGB332,
DRM_FORMAT_XRGB4444, DRM_FORMAT_XBGR4444,
DRM_FORMAT_ARGB4444, DRM_FORMAT_ABGR4444,
DRM_FORMAT_XRGB1555, DRM_FORMAT_XBGR1555,
DRM_FORMAT_ARGB1555, DRM_FORMAT_ABGR1555,
DRM_FORMAT_RGB565, DRM_FORMAT_BGR565,
DRM_FORMAT_RGB888, DRM_FORMAT_BGR888,
DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR8888,
DRM_FORMAT_ARGB8888, DRM_FORMAT_ABGR8888,
/*planar formats */
DRM_FORMAT_YUV420, DRM_FORMAT_YVU420,
DRM_FORMAT_YUV422, DRM_FORMAT_YVU422,
DRM_FORMAT_YUV444, DRM_FORMAT_YVU444,
DRM_FORMAT_NV12, DRM_FORMAT_NV21,
};
static unsigned int check_pixel_format(struct drm_plane *plane, u32 format)
{
struct kmb_drm_private *kmb;
struct kmb_plane *kmb_plane = to_kmb_plane(plane);
int i;
int plane_id = kmb_plane->id;
struct disp_cfg init_disp_cfg;
kmb = to_kmb(plane->dev);
init_disp_cfg = kmb->init_disp_cfg[plane_id];
/* Due to HW limitations, changing pixel format after initial
* plane configuration is not supported.
*/
if (init_disp_cfg.format && init_disp_cfg.format != format) {
drm_dbg(&kmb->drm, "Cannot change format after initial plane configuration");
return -EINVAL;
}
for (i = 0; i < plane->format_count; i++) {
if (plane->format_types[i] == format)
return 0;
}
return -EINVAL;
}
static int kmb_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
plane);
struct kmb_drm_private *kmb;
struct kmb_plane *kmb_plane = to_kmb_plane(plane);
int plane_id = kmb_plane->id;
struct disp_cfg init_disp_cfg;
struct drm_framebuffer *fb;
int ret;
struct drm_crtc_state *crtc_state;
bool can_position;
kmb = to_kmb(plane->dev);
init_disp_cfg = kmb->init_disp_cfg[plane_id];
fb = new_plane_state->fb;
if (!fb || !new_plane_state->crtc)
return 0;
ret = check_pixel_format(plane, fb->format->format);
if (ret)
return ret;
if (new_plane_state->crtc_w > KMB_FB_MAX_WIDTH ||
new_plane_state->crtc_h > KMB_FB_MAX_HEIGHT ||
new_plane_state->crtc_w < KMB_FB_MIN_WIDTH ||
new_plane_state->crtc_h < KMB_FB_MIN_HEIGHT)
return -EINVAL;
/* Due to HW limitations, changing plane height or width after
* initial plane configuration is not supported.
*/
if ((init_disp_cfg.width && init_disp_cfg.height) &&
(init_disp_cfg.width != fb->width ||
init_disp_cfg.height != fb->height)) {
drm_dbg(&kmb->drm, "Cannot change plane height or width after initial configuration");
return -EINVAL;
}
can_position = (plane->type == DRM_PLANE_TYPE_OVERLAY);
crtc_state =
drm_atomic_get_existing_crtc_state(state,
new_plane_state->crtc);
return drm_atomic_helper_check_plane_state(new_plane_state,
crtc_state,
DRM_PLANE_NO_SCALING,
DRM_PLANE_NO_SCALING,
can_position, true);
}
static void kmb_plane_atomic_disable(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct kmb_plane *kmb_plane = to_kmb_plane(plane);
int plane_id = kmb_plane->id;
struct kmb_drm_private *kmb;
kmb = to_kmb(plane->dev);
if (WARN_ON(plane_id >= KMB_MAX_PLANES))
return;
switch (plane_id) {
case LAYER_0:
kmb->plane_status[plane_id].ctrl = LCD_CTRL_VL1_ENABLE;
break;
case LAYER_1:
kmb->plane_status[plane_id].ctrl = LCD_CTRL_VL2_ENABLE;
break;
}
kmb->plane_status[plane_id].disable = true;
}
static unsigned int get_pixel_format(u32 format)
{
unsigned int val = 0;
switch (format) {
/* planar formats */
case DRM_FORMAT_YUV444:
val = LCD_LAYER_FORMAT_YCBCR444PLAN | LCD_LAYER_PLANAR_STORAGE;
break;
case DRM_FORMAT_YVU444:
val = LCD_LAYER_FORMAT_YCBCR444PLAN | LCD_LAYER_PLANAR_STORAGE
| LCD_LAYER_CRCB_ORDER;
break;
case DRM_FORMAT_YUV422:
val = LCD_LAYER_FORMAT_YCBCR422PLAN | LCD_LAYER_PLANAR_STORAGE;
break;
case DRM_FORMAT_YVU422:
val = LCD_LAYER_FORMAT_YCBCR422PLAN | LCD_LAYER_PLANAR_STORAGE
| LCD_LAYER_CRCB_ORDER;
break;
case DRM_FORMAT_YUV420:
val = LCD_LAYER_FORMAT_YCBCR420PLAN | LCD_LAYER_PLANAR_STORAGE;
break;
case DRM_FORMAT_YVU420:
val = LCD_LAYER_FORMAT_YCBCR420PLAN | LCD_LAYER_PLANAR_STORAGE
| LCD_LAYER_CRCB_ORDER;
break;
case DRM_FORMAT_NV12:
val = LCD_LAYER_FORMAT_NV12 | LCD_LAYER_PLANAR_STORAGE;
break;
case DRM_FORMAT_NV21:
val = LCD_LAYER_FORMAT_NV12 | LCD_LAYER_PLANAR_STORAGE
| LCD_LAYER_CRCB_ORDER;
break;
/* packed formats */
/* looks hw requires B & G to be swapped when RGB */
case DRM_FORMAT_RGB332:
val = LCD_LAYER_FORMAT_RGB332 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_XBGR4444:
val = LCD_LAYER_FORMAT_RGBX4444;
break;
case DRM_FORMAT_ARGB4444:
val = LCD_LAYER_FORMAT_RGBA4444 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_ABGR4444:
val = LCD_LAYER_FORMAT_RGBA4444;
break;
case DRM_FORMAT_XRGB1555:
val = LCD_LAYER_FORMAT_XRGB1555 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_XBGR1555:
val = LCD_LAYER_FORMAT_XRGB1555;
break;
case DRM_FORMAT_ARGB1555:
val = LCD_LAYER_FORMAT_RGBA1555 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_ABGR1555:
val = LCD_LAYER_FORMAT_RGBA1555;
break;
case DRM_FORMAT_RGB565:
val = LCD_LAYER_FORMAT_RGB565 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_BGR565:
val = LCD_LAYER_FORMAT_RGB565;
break;
case DRM_FORMAT_RGB888:
val = LCD_LAYER_FORMAT_RGB888 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_BGR888:
val = LCD_LAYER_FORMAT_RGB888;
break;
case DRM_FORMAT_XRGB8888:
val = LCD_LAYER_FORMAT_RGBX8888 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_XBGR8888:
val = LCD_LAYER_FORMAT_RGBX8888;
break;
case DRM_FORMAT_ARGB8888:
val = LCD_LAYER_FORMAT_RGBA8888 | LCD_LAYER_BGR_ORDER;
break;
case DRM_FORMAT_ABGR8888:
val = LCD_LAYER_FORMAT_RGBA8888;
break;
}
DRM_INFO_ONCE("%s : %d format=0x%x val=0x%x\n",
__func__, __LINE__, format, val);
return val;
}
static unsigned int get_bits_per_pixel(const struct drm_format_info *format)
{
u32 bpp = 0;
unsigned int val = 0;
if (format->num_planes > 1) {
val = LCD_LAYER_8BPP;
return val;
}
bpp += 8 * format->cpp[0];
switch (bpp) {
case 8:
val = LCD_LAYER_8BPP;
break;
case 16:
val = LCD_LAYER_16BPP;
break;
case 24:
val = LCD_LAYER_24BPP;
break;
case 32:
val = LCD_LAYER_32BPP;
break;
}
DRM_DEBUG("bpp=%d val=0x%x\n", bpp, val);
return val;
}
static void config_csc(struct kmb_drm_private *kmb, int plane_id)
{
/* YUV to RGB conversion using the fixed matrix csc_coef_lcd */
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF11(plane_id), csc_coef_lcd[0]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF12(plane_id), csc_coef_lcd[1]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF13(plane_id), csc_coef_lcd[2]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF21(plane_id), csc_coef_lcd[3]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF22(plane_id), csc_coef_lcd[4]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF23(plane_id), csc_coef_lcd[5]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF31(plane_id), csc_coef_lcd[6]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF32(plane_id), csc_coef_lcd[7]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_COEFF33(plane_id), csc_coef_lcd[8]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_OFF1(plane_id), csc_coef_lcd[9]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_OFF2(plane_id), csc_coef_lcd[10]);
kmb_write_lcd(kmb, LCD_LAYERn_CSC_OFF3(plane_id), csc_coef_lcd[11]);
}
static void kmb_plane_set_alpha(struct kmb_drm_private *kmb,
const struct drm_plane_state *state,
unsigned char plane_id,
unsigned int *val)
{
u16 plane_alpha = state->alpha;
u16 pixel_blend_mode = state->pixel_blend_mode;
int has_alpha = state->fb->format->has_alpha;
if (plane_alpha != DRM_BLEND_ALPHA_OPAQUE)
*val |= LCD_LAYER_ALPHA_STATIC;
if (has_alpha) {
switch (pixel_blend_mode) {
case DRM_MODE_BLEND_PIXEL_NONE:
break;
case DRM_MODE_BLEND_PREMULTI:
*val |= LCD_LAYER_ALPHA_EMBED | LCD_LAYER_ALPHA_PREMULT;
break;
case DRM_MODE_BLEND_COVERAGE:
*val |= LCD_LAYER_ALPHA_EMBED;
break;
default:
DRM_DEBUG("Missing pixel blend mode case (%s == %ld)\n",
__stringify(pixel_blend_mode),
(long)pixel_blend_mode);
break;
}
}
if (plane_alpha == DRM_BLEND_ALPHA_OPAQUE && !has_alpha) {
*val &= LCD_LAYER_ALPHA_DISABLED;
return;
}
kmb_write_lcd(kmb, LCD_LAYERn_ALPHA(plane_id), plane_alpha);
}
static void kmb_plane_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state,
plane);
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_framebuffer *fb;
struct kmb_drm_private *kmb;
unsigned int width;
unsigned int height;
unsigned int dma_len;
struct kmb_plane *kmb_plane;
unsigned int dma_cfg;
unsigned int ctrl = 0, val = 0, out_format = 0;
unsigned int src_w, src_h, crtc_x, crtc_y;
unsigned char plane_id;
int num_planes;
static dma_addr_t addr[MAX_SUB_PLANES];
struct disp_cfg *init_disp_cfg;
if (!plane || !new_plane_state || !old_plane_state)
return;
fb = new_plane_state->fb;
if (!fb)
return;
num_planes = fb->format->num_planes;
kmb_plane = to_kmb_plane(plane);
kmb = to_kmb(plane->dev);
plane_id = kmb_plane->id;
spin_lock_irq(&kmb->irq_lock);
if (kmb->kmb_under_flow || kmb->kmb_flush_done) {
spin_unlock_irq(&kmb->irq_lock);
drm_dbg(&kmb->drm, "plane_update:underflow!!!! returning");
return;
}
spin_unlock_irq(&kmb->irq_lock);
init_disp_cfg = &kmb->init_disp_cfg[plane_id];
src_w = new_plane_state->src_w >> 16;
src_h = new_plane_state->src_h >> 16;
crtc_x = new_plane_state->crtc_x;
crtc_y = new_plane_state->crtc_y;
drm_dbg(&kmb->drm,
"src_w=%d src_h=%d, fb->format->format=0x%x fb->flags=0x%x\n",
src_w, src_h, fb->format->format, fb->flags);
width = fb->width;
height = fb->height;
dma_len = (width * height * fb->format->cpp[0]);
drm_dbg(&kmb->drm, "dma_len=%d ", dma_len);
kmb_write_lcd(kmb, LCD_LAYERn_DMA_LEN(plane_id), dma_len);
kmb_write_lcd(kmb, LCD_LAYERn_DMA_LEN_SHADOW(plane_id), dma_len);
kmb_write_lcd(kmb, LCD_LAYERn_DMA_LINE_VSTRIDE(plane_id),
fb->pitches[0]);
kmb_write_lcd(kmb, LCD_LAYERn_DMA_LINE_WIDTH(plane_id),
(width * fb->format->cpp[0]));
addr[Y_PLANE] = drm_fb_dma_get_gem_addr(fb, new_plane_state, 0);
kmb_write_lcd(kmb, LCD_LAYERn_DMA_START_ADDR(plane_id),
addr[Y_PLANE] + fb->offsets[0]);
val = get_pixel_format(fb->format->format);
val |= get_bits_per_pixel(fb->format);
/* Program Cb/Cr for planar formats */
if (num_planes > 1) {
kmb_write_lcd(kmb, LCD_LAYERn_DMA_CB_LINE_VSTRIDE(plane_id),
width * fb->format->cpp[0]);
kmb_write_lcd(kmb, LCD_LAYERn_DMA_CB_LINE_WIDTH(plane_id),
(width * fb->format->cpp[0]));
addr[U_PLANE] = drm_fb_dma_get_gem_addr(fb, new_plane_state,
U_PLANE);
/* check if Cb/Cr is swapped*/
if (num_planes == 3 && (val & LCD_LAYER_CRCB_ORDER))
kmb_write_lcd(kmb,
LCD_LAYERn_DMA_START_CR_ADR(plane_id),
addr[U_PLANE]);
else
kmb_write_lcd(kmb,
LCD_LAYERn_DMA_START_CB_ADR(plane_id),
addr[U_PLANE]);
if (num_planes == 3) {
kmb_write_lcd(kmb,
LCD_LAYERn_DMA_CR_LINE_VSTRIDE(plane_id),
((width) * fb->format->cpp[0]));
kmb_write_lcd(kmb,
LCD_LAYERn_DMA_CR_LINE_WIDTH(plane_id),
((width) * fb->format->cpp[0]));
addr[V_PLANE] = drm_fb_dma_get_gem_addr(fb,
new_plane_state,
V_PLANE);
/* check if Cb/Cr is swapped*/
if (val & LCD_LAYER_CRCB_ORDER)
kmb_write_lcd(kmb,
LCD_LAYERn_DMA_START_CB_ADR(plane_id),
addr[V_PLANE]);
else
kmb_write_lcd(kmb,
LCD_LAYERn_DMA_START_CR_ADR(plane_id),
addr[V_PLANE]);
}
}
kmb_write_lcd(kmb, LCD_LAYERn_WIDTH(plane_id), src_w - 1);
kmb_write_lcd(kmb, LCD_LAYERn_HEIGHT(plane_id), src_h - 1);
kmb_write_lcd(kmb, LCD_LAYERn_COL_START(plane_id), crtc_x);
kmb_write_lcd(kmb, LCD_LAYERn_ROW_START(plane_id), crtc_y);
val |= LCD_LAYER_FIFO_100;
if (val & LCD_LAYER_PLANAR_STORAGE) {
val |= LCD_LAYER_CSC_EN;
/* Enable CSC if input is planar and output is RGB */
config_csc(kmb, plane_id);
}
kmb_plane_set_alpha(kmb, plane->state, plane_id, &val);
kmb_write_lcd(kmb, LCD_LAYERn_CFG(plane_id), val);
/* Configure LCD_CONTROL */
ctrl = kmb_read_lcd(kmb, LCD_CONTROL);
/* Set layer blending config */
ctrl &= ~LCD_CTRL_ALPHA_ALL;
ctrl |= LCD_CTRL_ALPHA_BOTTOM_VL1 |
LCD_CTRL_ALPHA_BLEND_VL2;
ctrl &= ~LCD_CTRL_ALPHA_BLEND_BKGND_DISABLE;
switch (plane_id) {
case LAYER_0:
ctrl |= LCD_CTRL_VL1_ENABLE;
break;
case LAYER_1:
ctrl |= LCD_CTRL_VL2_ENABLE;
break;
case LAYER_2:
ctrl |= LCD_CTRL_GL1_ENABLE;
break;
case LAYER_3:
ctrl |= LCD_CTRL_GL2_ENABLE;
break;
}
ctrl |= LCD_CTRL_PROGRESSIVE | LCD_CTRL_TIM_GEN_ENABLE
| LCD_CTRL_CONTINUOUS | LCD_CTRL_OUTPUT_ENABLED;
/* LCD is connected to MIPI on kmb
* Therefore this bit is required for DSI Tx
*/
ctrl |= LCD_CTRL_VHSYNC_IDLE_LVL;
kmb_write_lcd(kmb, LCD_CONTROL, ctrl);
/* Enable pipeline AXI read transactions for the DMA
* after setting graphics layers. This must be done
* in a separate write cycle.
*/
kmb_set_bitmask_lcd(kmb, LCD_CONTROL, LCD_CTRL_PIPELINE_DMA);
/* FIXME no doc on how to set output format, these values are taken
* from the Myriadx tests
*/
out_format |= LCD_OUTF_FORMAT_RGB888;
/* Leave RGB order,conversion mode and clip mode to default */
/* do not interleave RGB channels for mipi Tx compatibility */
out_format |= LCD_OUTF_MIPI_RGB_MODE;
kmb_write_lcd(kmb, LCD_OUT_FORMAT_CFG, out_format);
dma_cfg = LCD_DMA_LAYER_ENABLE | LCD_DMA_LAYER_VSTRIDE_EN |
LCD_DMA_LAYER_CONT_UPDATE | LCD_DMA_LAYER_AXI_BURST_16;
/* Enable DMA */
kmb_write_lcd(kmb, LCD_LAYERn_DMA_CFG(plane_id), dma_cfg);
/* Save initial display config */
if (!init_disp_cfg->width ||
!init_disp_cfg->height ||
!init_disp_cfg->format) {
init_disp_cfg->width = width;
init_disp_cfg->height = height;
init_disp_cfg->format = fb->format->format;
}
drm_dbg(&kmb->drm, "dma_cfg=0x%x LCD_DMA_CFG=0x%x\n", dma_cfg,
kmb_read_lcd(kmb, LCD_LAYERn_DMA_CFG(plane_id)));
kmb_set_bitmask_lcd(kmb, LCD_INT_CLEAR, LCD_INT_EOF |
LCD_INT_DMA_ERR);
kmb_set_bitmask_lcd(kmb, LCD_INT_ENABLE, LCD_INT_EOF |
LCD_INT_DMA_ERR);
}
static const struct drm_plane_helper_funcs kmb_plane_helper_funcs = {
.atomic_check = kmb_plane_atomic_check,
.atomic_update = kmb_plane_atomic_update,
.atomic_disable = kmb_plane_atomic_disable
};
void kmb_plane_destroy(struct drm_plane *plane)
{
struct kmb_plane *kmb_plane = to_kmb_plane(plane);
drm_plane_cleanup(plane);
kfree(kmb_plane);
}
static const struct drm_plane_funcs kmb_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = kmb_plane_destroy,
.reset = drm_atomic_helper_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
struct kmb_plane *kmb_plane_init(struct drm_device *drm)
{
struct kmb_drm_private *kmb = to_kmb(drm);
struct kmb_plane *plane = NULL;
struct kmb_plane *primary = NULL;
int i = 0;
int ret = 0;
enum drm_plane_type plane_type;
const u32 *plane_formats;
int num_plane_formats;
unsigned int blend_caps = BIT(DRM_MODE_BLEND_PIXEL_NONE) |
BIT(DRM_MODE_BLEND_PREMULTI) |
BIT(DRM_MODE_BLEND_COVERAGE);
for (i = 0; i < KMB_MAX_PLANES; i++) {
plane = drmm_kzalloc(drm, sizeof(*plane), GFP_KERNEL);
if (!plane) {
drm_err(drm, "Failed to allocate plane\n");
return ERR_PTR(-ENOMEM);
}
plane_type = (i == 0) ? DRM_PLANE_TYPE_PRIMARY :
DRM_PLANE_TYPE_OVERLAY;
if (i < 2) {
plane_formats = kmb_formats_v;
num_plane_formats = ARRAY_SIZE(kmb_formats_v);
} else {
plane_formats = kmb_formats_g;
num_plane_formats = ARRAY_SIZE(kmb_formats_g);
}
ret = drm_universal_plane_init(drm, &plane->base_plane,
POSSIBLE_CRTCS, &kmb_plane_funcs,
plane_formats, num_plane_formats,
NULL, plane_type, "plane %d", i);
if (ret < 0) {
drm_err(drm, "drm_universal_plane_init failed (ret=%d)",
ret);
goto cleanup;
}
drm_dbg(drm, "%s : %d i=%d type=%d",
__func__, __LINE__,
i, plane_type);
drm_plane_create_alpha_property(&plane->base_plane);
drm_plane_create_blend_mode_property(&plane->base_plane,
blend_caps);
drm_plane_create_zpos_immutable_property(&plane->base_plane, i);
drm_plane_helper_add(&plane->base_plane,
&kmb_plane_helper_funcs);
if (plane_type == DRM_PLANE_TYPE_PRIMARY) {
primary = plane;
kmb->plane = plane;
}
drm_dbg(drm, "%s : %d primary=%p\n", __func__, __LINE__,
&primary->base_plane);
plane->id = i;
}
/* Disable pipeline AXI read transactions for the DMA
* prior to setting graphics layers
*/
kmb_clr_bitmask_lcd(kmb, LCD_CONTROL, LCD_CTRL_PIPELINE_DMA);
return primary;
cleanup:
drmm_kfree(drm, plane);
return ERR_PTR(ret);
}
Codebase Browser
linux