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path: root/drivers/gpu/drm/vc4/vc4_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_crtc.c')
-rw-r--r--drivers/gpu/drm/vc4/vc4_crtc.c65
1 files changed, 39 insertions, 26 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 7aadce1f7e7a..9fcf05ca492b 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -156,7 +156,8 @@ int vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id,
const struct drm_display_mode *mode)
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
- struct vc4_crtc *vc4_crtc = vc4->crtc[crtc_id];
+ struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id);
+ struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
u32 val;
int fifo_lines;
int vblank_lines;
@@ -272,9 +273,7 @@ int vc4_crtc_get_vblank_timestamp(struct drm_device *dev, unsigned int crtc_id,
int *max_error, struct timeval *vblank_time,
unsigned flags)
{
- struct vc4_dev *vc4 = to_vc4_dev(dev);
- struct vc4_crtc *vc4_crtc = vc4->crtc[crtc_id];
- struct drm_crtc *crtc = &vc4_crtc->base;
+ struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id);
struct drm_crtc_state *state = crtc->state;
/* Helper routine in DRM core does all the work: */
@@ -349,38 +348,40 @@ static u32 vc4_get_fifo_full_level(u32 format)
}
/*
- * Returns the clock select bit for the connector attached to the
- * CRTC.
+ * Returns the encoder attached to the CRTC.
+ *
+ * VC4 can only scan out to one encoder at a time, while the DRM core
+ * allows drivers to push pixels to more than one encoder from the
+ * same CRTC.
*/
-static int vc4_get_clock_select(struct drm_crtc *crtc)
+static struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc)
{
struct drm_connector *connector;
drm_for_each_connector(connector, crtc->dev) {
if (connector->state->crtc == crtc) {
- struct drm_encoder *encoder = connector->encoder;
- struct vc4_encoder *vc4_encoder =
- to_vc4_encoder(encoder);
-
- return vc4_encoder->clock_select;
+ return connector->encoder;
}
}
- return -1;
+ return NULL;
}
static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
+ struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
struct drm_crtc_state *state = crtc->state;
struct drm_display_mode *mode = &state->adjusted_mode;
bool interlace = mode->flags & DRM_MODE_FLAG_INTERLACE;
u32 pixel_rep = (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1;
- u32 format = PV_CONTROL_FORMAT_24;
+ bool is_dsi = (vc4_encoder->type == VC4_ENCODER_TYPE_DSI0 ||
+ vc4_encoder->type == VC4_ENCODER_TYPE_DSI1);
+ u32 format = is_dsi ? PV_CONTROL_FORMAT_DSIV_24 : PV_CONTROL_FORMAT_24;
bool debug_dump_regs = false;
- int clock_select = vc4_get_clock_select(crtc);
if (debug_dump_regs) {
DRM_INFO("CRTC %d regs before:\n", drm_crtc_index(crtc));
@@ -436,17 +437,19 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)
*/
CRTC_WRITE(PV_V_CONTROL,
PV_VCONTROL_CONTINUOUS |
+ (is_dsi ? PV_VCONTROL_DSI : 0) |
PV_VCONTROL_INTERLACE |
VC4_SET_FIELD(mode->htotal * pixel_rep / 2,
PV_VCONTROL_ODD_DELAY));
CRTC_WRITE(PV_VSYNCD_EVEN, 0);
} else {
- CRTC_WRITE(PV_V_CONTROL, PV_VCONTROL_CONTINUOUS);
+ CRTC_WRITE(PV_V_CONTROL,
+ PV_VCONTROL_CONTINUOUS |
+ (is_dsi ? PV_VCONTROL_DSI : 0));
}
CRTC_WRITE(PV_HACT_ACT, mode->hdisplay * pixel_rep);
-
CRTC_WRITE(PV_CONTROL,
VC4_SET_FIELD(format, PV_CONTROL_FORMAT) |
VC4_SET_FIELD(vc4_get_fifo_full_level(format),
@@ -455,7 +458,8 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)
PV_CONTROL_CLR_AT_START |
PV_CONTROL_TRIGGER_UNDERFLOW |
PV_CONTROL_WAIT_HSTART |
- VC4_SET_FIELD(clock_select, PV_CONTROL_CLK_SELECT) |
+ VC4_SET_FIELD(vc4_encoder->clock_select,
+ PV_CONTROL_CLK_SELECT) |
PV_CONTROL_FIFO_CLR |
PV_CONTROL_EN);
@@ -589,7 +593,7 @@ static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
spin_lock_irqsave(&vc4->hvs->mm_lock, flags);
ret = drm_mm_insert_node(&vc4->hvs->dlist_mm, &vc4_state->mm,
- dlist_count, 1, 0);
+ dlist_count);
spin_unlock_irqrestore(&vc4->hvs->mm_lock, flags);
if (ret)
return ret;
@@ -652,8 +656,8 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc,
int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id)
{
- struct vc4_dev *vc4 = to_vc4_dev(dev);
- struct vc4_crtc *vc4_crtc = vc4->crtc[crtc_id];
+ struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id);
+ struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
CRTC_WRITE(PV_INTEN, PV_INT_VFP_START);
@@ -662,8 +666,8 @@ int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id)
void vc4_disable_vblank(struct drm_device *dev, unsigned int crtc_id)
{
- struct vc4_dev *vc4 = to_vc4_dev(dev);
- struct vc4_crtc *vc4_crtc = vc4->crtc[crtc_id];
+ struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id);
+ struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
CRTC_WRITE(PV_INTEN, 0);
}
@@ -842,6 +846,17 @@ static void vc4_crtc_destroy_state(struct drm_crtc *crtc,
drm_atomic_helper_crtc_destroy_state(crtc, state);
}
+static void
+vc4_crtc_reset(struct drm_crtc *crtc)
+{
+ if (crtc->state)
+ __drm_atomic_helper_crtc_destroy_state(crtc->state);
+
+ crtc->state = kzalloc(sizeof(struct vc4_crtc_state), GFP_KERNEL);
+ if (crtc->state)
+ crtc->state->crtc = crtc;
+}
+
static const struct drm_crtc_funcs vc4_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.destroy = vc4_crtc_destroy,
@@ -849,7 +864,7 @@ static const struct drm_crtc_funcs vc4_crtc_funcs = {
.set_property = NULL,
.cursor_set = NULL, /* handled by drm_mode_cursor_universal */
.cursor_move = NULL, /* handled by drm_mode_cursor_universal */
- .reset = drm_atomic_helper_crtc_reset,
+ .reset = vc4_crtc_reset,
.atomic_duplicate_state = vc4_crtc_duplicate_state,
.atomic_destroy_state = vc4_crtc_destroy_state,
.gamma_set = vc4_crtc_gamma_set,
@@ -937,7 +952,6 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm = dev_get_drvdata(master);
- struct vc4_dev *vc4 = to_vc4_dev(drm);
struct vc4_crtc *vc4_crtc;
struct drm_crtc *crtc;
struct drm_plane *primary_plane, *cursor_plane, *destroy_plane, *temp;
@@ -975,7 +989,6 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data)
&vc4_crtc_funcs, NULL);
drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs);
primary_plane->crtc = crtc;
- vc4->crtc[drm_crtc_index(crtc)] = vc4_crtc;
vc4_crtc->channel = vc4_crtc->data->hvs_channel;
drm_mode_crtc_set_gamma_size(crtc, ARRAY_SIZE(vc4_crtc->lut_r));
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-31 02:37:26 +0300