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drm/omap: fix primary-plane's possible_crtcs 

We set the possible_crtc for all planes to "(1 << priv->num_crtcs) - 1",
which is fine as the HW planes can be used fro all crtcs. However, when
we're doing that, we are still incrementing 'num_crtcs', and we'll end
up with bad possible_crtcs, preventing the use of the primary planes.

This patch passes a possible_crtcs mask to plane init function so that
we get correct possible_crtc.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2016-12-02 16:07:11 +02:00
parent 5cd57a46e3
commit e43f2c3395
3 changed files with 17 additions and 9 deletions
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17
drivers/gpu/drm/omapdrm/omap_drv.c
View File

@ -267,13 +267,15 @@ cleanup:
}
static int omap_modeset_create_crtc(struct drm_device *dev, int id,
enum omap_channel channel)
enum omap_channel channel,
u32 possible_crtcs)
{
struct omap_drm_private *priv = dev->dev_private;
struct drm_plane *plane;
struct drm_crtc *crtc;
plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_PRIMARY);
plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_PRIMARY,
possible_crtcs);
if (IS_ERR(plane))
return PTR_ERR(plane);
@ -309,6 +311,7 @@ static int omap_modeset_init(struct drm_device *dev)
int num_crtcs;
int i, id = 0;
int ret;
u32 possible_crtcs;
drm_mode_config_init(dev);
@ -325,6 +328,7 @@ static int omap_modeset_init(struct drm_device *dev)
* We use the num_crtc argument to limit the number of crtcs we create.
*/
num_crtcs = min3(num_crtc, num_mgrs, num_ovls);
possible_crtcs = (1 << num_crtcs) - 1;
dssdev = NULL;
@ -388,7 +392,8 @@ static int omap_modeset_init(struct drm_device *dev)
* allocated crtc, we create a new crtc for it
*/
if (!channel_used(dev, channel)) {
ret = omap_modeset_create_crtc(dev, id, channel);
ret = omap_modeset_create_crtc(dev, id, channel,
possible_crtcs);
if (ret < 0) {
dev_err(dev->dev,
"could not create CRTC (channel %u)\n",
@ -418,7 +423,8 @@ static int omap_modeset_init(struct drm_device *dev)
return -ENOMEM;
}
ret = omap_modeset_create_crtc(dev, id, i);
ret = omap_modeset_create_crtc(dev, id, i,
possible_crtcs);
if (ret < 0) {
dev_err(dev->dev,
"could not create CRTC (channel %u)\n", i);
@ -432,7 +438,8 @@ static int omap_modeset_init(struct drm_device *dev)
for (; id < num_ovls; id++) {
struct drm_plane *plane;
plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_OVERLAY);
plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_OVERLAY,
possible_crtcs);
if (IS_ERR(plane))
return PTR_ERR(plane);

3
drivers/gpu/drm/omapdrm/omap_drv.h
View File

@ -157,7 +157,8 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev,
int omap_crtc_wait_pending(struct drm_crtc *crtc);
struct drm_plane *omap_plane_init(struct drm_device *dev,
int id, enum drm_plane_type type);
int id, enum drm_plane_type type,
u32 possible_crtcs);
void omap_plane_install_properties(struct drm_plane *plane,
struct drm_mode_object *obj);

6
drivers/gpu/drm/omapdrm/omap_plane.c
View File

@ -356,9 +356,9 @@ static const uint32_t error_irqs[] = {
/* initialize plane */
struct drm_plane *omap_plane_init(struct drm_device *dev,
int id, enum drm_plane_type type)
int id, enum drm_plane_type type,
u32 possible_crtcs)
{
struct omap_drm_private *priv = dev->dev_private;
struct drm_plane *plane;
struct omap_plane *omap_plane;
int ret;
@ -381,7 +381,7 @@ struct drm_plane *omap_plane_init(struct drm_device *dev,
omap_plane->error_irq.irq = omap_plane_error_irq;
omap_irq_register(dev, &omap_plane->error_irq);
ret = drm_universal_plane_init(dev, plane, (1 << priv->num_crtcs) - 1,
ret = drm_universal_plane_init(dev, plane, possible_crtcs,
&omap_plane_funcs, omap_plane->formats,
omap_plane->nformats, type, NULL);
if (ret < 0)