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path: root/drivers/gpu/drm/arm/hdlcd_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/arm/hdlcd_crtc.c')
-rw-r--r--drivers/gpu/drm/arm/hdlcd_crtc.c86
1 files changed, 48 insertions, 38 deletions
diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c
index fef1b04c2aab..0813c2f06931 100644
--- a/drivers/gpu/drm/arm/hdlcd_crtc.c
+++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
@@ -33,8 +33,17 @@
*
*/
+static void hdlcd_crtc_cleanup(struct drm_crtc *crtc)
+{
+ struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
+
+ /* stop the controller on cleanup */
+ hdlcd_write(hdlcd, HDLCD_REG_COMMAND, 0);
+ drm_crtc_cleanup(crtc);
+}
+
static const struct drm_crtc_funcs hdlcd_crtc_funcs = {
- .destroy = drm_crtc_cleanup,
+ .destroy = hdlcd_crtc_cleanup,
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
.reset = drm_atomic_helper_crtc_reset,
@@ -97,7 +106,7 @@ static void hdlcd_crtc_mode_set_nofb(struct drm_crtc *crtc)
struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
struct drm_display_mode *m = &crtc->state->adjusted_mode;
struct videomode vm;
- unsigned int polarities, line_length, err;
+ unsigned int polarities, err;
vm.vfront_porch = m->crtc_vsync_start - m->crtc_vdisplay;
vm.vback_porch = m->crtc_vtotal - m->crtc_vsync_end;
@@ -113,23 +122,18 @@ static void hdlcd_crtc_mode_set_nofb(struct drm_crtc *crtc)
if (m->flags & DRM_MODE_FLAG_PVSYNC)
polarities |= HDLCD_POLARITY_VSYNC;
- line_length = crtc->primary->state->fb->pitches[0];
-
/* Allow max number of outstanding requests and largest burst size */
hdlcd_write(hdlcd, HDLCD_REG_BUS_OPTIONS,
HDLCD_BUS_MAX_OUTSTAND | HDLCD_BUS_BURST_16);
- hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_LENGTH, line_length);
- hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_PITCH, line_length);
- hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_COUNT, m->crtc_vdisplay - 1);
hdlcd_write(hdlcd, HDLCD_REG_V_DATA, m->crtc_vdisplay - 1);
hdlcd_write(hdlcd, HDLCD_REG_V_BACK_PORCH, vm.vback_porch - 1);
hdlcd_write(hdlcd, HDLCD_REG_V_FRONT_PORCH, vm.vfront_porch - 1);
hdlcd_write(hdlcd, HDLCD_REG_V_SYNC, vm.vsync_len - 1);
+ hdlcd_write(hdlcd, HDLCD_REG_H_DATA, m->crtc_hdisplay - 1);
hdlcd_write(hdlcd, HDLCD_REG_H_BACK_PORCH, vm.hback_porch - 1);
hdlcd_write(hdlcd, HDLCD_REG_H_FRONT_PORCH, vm.hfront_porch - 1);
hdlcd_write(hdlcd, HDLCD_REG_H_SYNC, vm.hsync_len - 1);
- hdlcd_write(hdlcd, HDLCD_REG_H_DATA, m->crtc_hdisplay - 1);
hdlcd_write(hdlcd, HDLCD_REG_POLARITIES, polarities);
err = hdlcd_set_pxl_fmt(crtc);
@@ -144,20 +148,19 @@ static void hdlcd_crtc_enable(struct drm_crtc *crtc)
struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
clk_prepare_enable(hdlcd->clk);
+ hdlcd_crtc_mode_set_nofb(crtc);
hdlcd_write(hdlcd, HDLCD_REG_COMMAND, 1);
- drm_crtc_vblank_on(crtc);
}
static void hdlcd_crtc_disable(struct drm_crtc *crtc)
{
struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
- if (!crtc->primary->fb)
+ if (!crtc->state->active)
return;
- clk_disable_unprepare(hdlcd->clk);
hdlcd_write(hdlcd, HDLCD_REG_COMMAND, 0);
- drm_crtc_vblank_off(crtc);
+ clk_disable_unprepare(hdlcd->clk);
}
static int hdlcd_crtc_atomic_check(struct drm_crtc *crtc,
@@ -179,20 +182,17 @@ static int hdlcd_crtc_atomic_check(struct drm_crtc *crtc,
static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
- struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
- unsigned long flags;
-
- if (crtc->state->event) {
- struct drm_pending_vblank_event *event = crtc->state->event;
+ struct drm_pending_vblank_event *event = crtc->state->event;
+ if (event) {
crtc->state->event = NULL;
- event->pipe = drm_crtc_index(crtc);
-
- WARN_ON(drm_crtc_vblank_get(crtc) != 0);
- spin_lock_irqsave(&crtc->dev->event_lock, flags);
- list_add_tail(&event->base.link, &hdlcd->event_list);
- spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+ spin_lock_irq(&crtc->dev->event_lock);
+ if (drm_crtc_vblank_get(crtc) == 0)
+ drm_crtc_arm_vblank_event(crtc, event);
+ else
+ drm_crtc_send_vblank_event(crtc, event);
+ spin_unlock_irq(&crtc->dev->event_lock);
}
}
@@ -225,6 +225,15 @@ static const struct drm_crtc_helper_funcs hdlcd_crtc_helper_funcs = {
static int hdlcd_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
+ u32 src_w, src_h;
+
+ src_w = state->src_w >> 16;
+ src_h = state->src_h >> 16;
+
+ /* we can't do any scaling of the plane source */
+ if ((src_w != state->crtc_w) || (src_h != state->crtc_h))
+ return -EINVAL;
+
return 0;
}
@@ -233,20 +242,31 @@ static void hdlcd_plane_atomic_update(struct drm_plane *plane,
{
struct hdlcd_drm_private *hdlcd;
struct drm_gem_cma_object *gem;
+ unsigned int depth, bpp;
+ u32 src_w, src_h, dest_w, dest_h;
dma_addr_t scanout_start;
- if (!plane->state->crtc || !plane->state->fb)
+ if (!plane->state->fb)
return;
- hdlcd = crtc_to_hdlcd_priv(plane->state->crtc);
+ drm_fb_get_bpp_depth(plane->state->fb->pixel_format, &depth, &bpp);
+ src_w = plane->state->src_w >> 16;
+ src_h = plane->state->src_h >> 16;
+ dest_w = plane->state->crtc_w;
+ dest_h = plane->state->crtc_h;
gem = drm_fb_cma_get_gem_obj(plane->state->fb, 0);
- scanout_start = gem->paddr;
+ scanout_start = gem->paddr + plane->state->fb->offsets[0] +
+ plane->state->crtc_y * plane->state->fb->pitches[0] +
+ plane->state->crtc_x * bpp / 8;
+
+ hdlcd = plane->dev->dev_private;
+ hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_LENGTH, plane->state->fb->pitches[0]);
+ hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_PITCH, plane->state->fb->pitches[0]);
+ hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_COUNT, dest_h - 1);
hdlcd_write(hdlcd, HDLCD_REG_FB_BASE, scanout_start);
}
static const struct drm_plane_helper_funcs hdlcd_plane_helper_funcs = {
- .prepare_fb = NULL,
- .cleanup_fb = NULL,
.atomic_check = hdlcd_plane_atomic_check,
.atomic_update = hdlcd_plane_atomic_update,
};
@@ -294,16 +314,6 @@ static struct drm_plane *hdlcd_plane_init(struct drm_device *drm)
return plane;
}
-void hdlcd_crtc_suspend(struct drm_crtc *crtc)
-{
- hdlcd_crtc_disable(crtc);
-}
-
-void hdlcd_crtc_resume(struct drm_crtc *crtc)
-{
- hdlcd_crtc_enable(crtc);
-}
-
int hdlcd_setup_crtc(struct drm_device *drm)
{
struct hdlcd_drm_private *hdlcd = drm->dev_private;