This is to keep track of the id of the plane as there are 4 planes in
Kmb and when update() is called, we need to know which plane need to be
updated so that the corresponding plane's registers can be programmed.
Signed-off-by: Anitha Chrisanthus <anitha.chrisant...@intel.com>
Reviewed-by: Bob Paauwe <bob.j.paa...@intel.com>
---
drivers/gpu/drm/kmb/kmb_crtc.c | 13 ++++---
drivers/gpu/drm/kmb/kmb_crtc.h | 2 +-
drivers/gpu/drm/kmb/kmb_drv.h | 2 +-
drivers/gpu/drm/kmb/kmb_plane.c | 80 +++++++++++++++++++++++++++--------------
drivers/gpu/drm/kmb/kmb_plane.h | 28 +++++++++------
5 files changed, 79 insertions(+), 46 deletions(-)
diff --git a/drivers/gpu/drm/kmb/kmb_crtc.c b/drivers/gpu/drm/kmb/kmb_crtc.c
index ab1fff8..6f16410 100644
--- a/drivers/gpu/drm/kmb/kmb_crtc.c
+++ b/drivers/gpu/drm/kmb/kmb_crtc.c
@@ -126,9 +126,8 @@ static void kmb_crtc_mode_set_nofb(struct drm_crtc *crtc)
kmb_write(lcd, LCD_VSYNC_START_EVEN, vsync_start_offset);
kmb_write(lcd, LCD_VSYNC_END_EVEN, vsync_end_offset);
}
- /* enable all 4 layers */
- ctrl = LCD_CTRL_ENABLE | LCD_CTRL_VL1_ENABLE
- | LCD_CTRL_VL2_ENABLE | LCD_CTRL_GL1_ENABLE | LCD_CTRL_GL2_ENABLE;
+ /* enable VL1 layer as default */
+ ctrl = LCD_CTRL_ENABLE | LCD_CTRL_VL1_ENABLE;
ctrl |= LCD_CTRL_PROGRESSIVE | LCD_CTRL_TIM_GEN_ENABLE
| LCD_CTRL_OUTPUT_ENABLED;
kmb_write(lcd, LCD_CONTROL, ctrl);
@@ -196,17 +195,17 @@ static const struct drm_crtc_helper_funcs
kmb_crtc_helper_funcs = {
int kmb_setup_crtc(struct drm_device *drm)
{
struct kmb_drm_private *lcd = drm->dev_private;
- struct drm_plane *primary;
+ struct kmb_plane *primary;
int ret;
primary = kmb_plane_init(drm);
if (IS_ERR(primary))
return PTR_ERR(primary);
- ret = drm_crtc_init_with_planes(drm, &lcd->crtc, primary, NULL,
- &kmb_crtc_funcs, NULL);
+ ret = drm_crtc_init_with_planes(drm, &lcd->crtc, &primary->base_plane,
+ NULL, &kmb_crtc_funcs, NULL);
if (ret) {
- kmb_plane_destroy(primary);
+ kmb_plane_destroy(&primary->base_plane);
return ret;
}
diff --git a/drivers/gpu/drm/kmb/kmb_crtc.h b/drivers/gpu/drm/kmb/kmb_crtc.h
index 0952733..5fe8890 100644
--- a/drivers/gpu/drm/kmb/kmb_crtc.h
+++ b/drivers/gpu/drm/kmb/kmb_crtc.h
@@ -55,5 +55,5 @@ struct kmb_crtc_state {
#define to_kmb_crtc_state(x) container_of(x, struct kmb_crtc_state, crtc_base)
#define to_kmb_crtc(x) container_of(x, struct kmb_crtc, crtc_base)
extern void kmb_plane_destroy(struct drm_plane *plane);
-extern struct drm_plane *kmb_plane_init(struct drm_device *drm);
+extern struct kmb_plane *kmb_plane_init(struct drm_device *drm);
#endif /* __KMB_CRTC_H__ */
diff --git a/drivers/gpu/drm/kmb/kmb_drv.h b/drivers/gpu/drm/kmb/kmb_drv.h
index 05e9791..637e9a2 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.h
+++ b/drivers/gpu/drm/kmb/kmb_drv.h
@@ -36,7 +36,7 @@ struct kmb_drm_private {
struct clk *clk;
struct drm_fbdev_cma *fbdev;
struct drm_crtc crtc;
- struct drm_plane *plane;
+ struct kmb_plane *plane;
struct drm_atomic_state *state;
};
diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c
index 9ab3873..b9d8d38 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -61,46 +61,69 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
dma_addr_t addr;
unsigned int width;
unsigned int height;
- unsigned int i;
unsigned int dma_len;
- struct kmb_plane_state *kmb_state = to_kmb_plane_state(plane->state);
+ struct kmb_plane *kmb_plane = to_kmb_plane(plane);
unsigned int dma_cfg;
+ unsigned int ctrl = 0;
+ unsigned char plane_id = kmb_plane->id;
if (!fb)
return;
lcd = plane->dev->dev_private;
+ 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_ENABLE;
+ ctrl |= LCD_CTRL_PROGRESSIVE | LCD_CTRL_TIM_GEN_ENABLE
+ | LCD_CTRL_OUTPUT_ENABLED;
+ kmb_write(lcd, LCD_CONTROL, ctrl);
+
/* TBD */
/*set LCD_LAYERn_WIDTH, LCD_LAYERn_HEIGHT, LCD_LAYERn_COL_START,
* LCD_LAYERn_ROW_START, LCD_LAYERn_CFG
* CFG should set the pixel format, FIFO level and BPP
*/
+ /*TBD check visible? */
+
/* we may have to set LCD_DMA_VSTRIDE_ENABLE in the future */
dma_cfg = LCD_DMA_LAYER_ENABLE | LCD_DMA_LAYER_AUTO_UPDATE
| LCD_DMA_LAYER_CONT_UPDATE | LCD_DMA_LAYER_AXI_BURST_1;
- for (i = 0; i < kmb_state->no_planes; i++) {
- /* disable DMA first */
- kmb_write(lcd, LCD_LAYERn_DMA_CFG(i), ~LCD_DMA_LAYER_ENABLE);
+ /* disable DMA first */
+ kmb_write(lcd, LCD_LAYERn_DMA_CFG(plane_id), ~LCD_DMA_LAYER_ENABLE);
- addr = drm_fb_cma_get_gem_addr(fb, plane->state, i);
- kmb_write(lcd, LCD_LAYERn_DMA_START_ADDR(i), addr);
- kmb_write(lcd, LCD_LAYERn_DMA_START_SHADOW(i), addr);
+ addr = drm_fb_cma_get_gem_addr(fb, plane->state, plane_id);
+ kmb_write(lcd, LCD_LAYERn_DMA_START_ADDR(plane_id), addr);
+ kmb_write(lcd, LCD_LAYERn_DMA_START_SHADOW(plane_id), addr);
- width = fb->width;
- height = fb->height;
- dma_len = width * height * fb->format->cpp[i];
- kmb_write(lcd, LCD_LAYERn_DMA_LEN(i), dma_len);
+ width = fb->width;
+ height = fb->height;
+ dma_len = width * height * fb->format->cpp[plane_id];
+ kmb_write(lcd, LCD_LAYERn_DMA_LEN(plane_id), dma_len);
- kmb_write(lcd, LCD_LAYERn_DMA_LINE_VSTRIDE(i), fb->pitches[0]);
- kmb_write(lcd, LCD_LAYERn_DMA_LINE_WIDTH(i),
- (width * fb->format->cpp[i]));
+ kmb_write(lcd, LCD_LAYERn_DMA_LINE_VSTRIDE(plane_id),
+ fb->pitches[plane_id]);
+ kmb_write(lcd, LCD_LAYERn_DMA_LINE_WIDTH(plane_id),
+ (width * fb->format->cpp[plane_id]));
+
+ /* enable DMA */
+ kmb_write(lcd, LCD_LAYERn_DMA_CFG(plane_id), dma_cfg);
- /* enable DMA */
- kmb_write(lcd, LCD_LAYERn_DMA_CFG(i), dma_cfg);
- }
}
static const struct drm_plane_helper_funcs kmb_plane_helper_funcs = {
@@ -110,7 +133,9 @@ static const struct drm_plane_helper_funcs
kmb_plane_helper_funcs = {
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 void kmb_destroy_plane_state(struct drm_plane *plane,
@@ -205,11 +230,11 @@ static const u32 kmb_formats_v[] = {
DRM_FORMAT_NV12, DRM_FORMAT_NV21,
};
-struct drm_plane *kmb_plane_init(struct drm_device *drm)
+struct kmb_plane *kmb_plane_init(struct drm_device *drm)
{
struct kmb_drm_private *lcd = drm->dev_private;
- struct drm_plane *plane = NULL;
- struct drm_plane *primary = NULL;
+ struct kmb_plane *plane = NULL;
+ struct kmb_plane *primary = NULL;
int i = 0;
int ret;
enum drm_plane_type plane_type;
@@ -233,18 +258,21 @@ struct drm_plane *kmb_plane_init(struct drm_device *drm)
num_plane_formats = ARRAY_SIZE(kmb_formats_g);
}
- ret = drm_universal_plane_init(drm, plane, 0xFF,
- &kmb_plane_funcs, plane_formats,
- num_plane_formats,
- NULL, plane_type, "plane %d", i);
+ 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)
goto cleanup;
- drm_plane_helper_add(plane, &kmb_plane_helper_funcs);
+ drm_plane_helper_add(&plane->base_plane,
+ &kmb_plane_helper_funcs);
if (plane_type == DRM_PLANE_TYPE_PRIMARY) {
primary = plane;
lcd->plane = plane;
}
+ plane->id = i;
}
cleanup:
diff --git a/drivers/gpu/drm/kmb/kmb_plane.h b/drivers/gpu/drm/kmb/kmb_plane.h
index 84c7113..45bcec1 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.h
+++ b/drivers/gpu/drm/kmb/kmb_plane.h
@@ -28,25 +28,31 @@
#include "kmb_drv.h"
-#define KMB_MAX_PLANES 4
+enum layer_id {
+ LAYER_0,
+ LAYER_1,
+ LAYER_2,
+ LAYER_3,
+ KMB_MAX_PLANES,
+};
+
+struct kmb_plane {
+ struct drm_plane base_plane;
+ struct kmb_drm_private kmb_dev;
+ unsigned char id;
+};
-/* this struct may be needed in the future
- *struct kmb_plane {
- * struct drm_plane base_plane;
- * struct kmb_drm_private kmb_dev;
- *};
- */
struct kmb_plane_state {
struct drm_plane_state base_plane_state;
unsigned char no_planes;
};
-/* may be needed in the future
- *#define to_kmb_plane(x) container_of(x, struct kmb_plane, base_plane)
- */
+#define POSSIBLE_CRTCS 1
+#define to_kmb_plane(x) container_of(x, struct kmb_plane, base_plane)
+
#define to_kmb_plane_state(x) \
container_of(x, struct kmb_plane_state, base_plane_state)
-struct drm_plane *kmb_plane_init(struct drm_device *drm);
+struct kmb_plane *kmb_plane_init(struct drm_device *drm);
void kmb_plane_destroy(struct drm_plane *plane);
#endif /* __KMB_PLANE_H__ */
--
2.7.4
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