[PATCH/RFC 50/60] drm/omap: Group CRTC, encoder, connector and dssdev in a structure
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Wed Mar 7 00:24:53 UTC 2018
Create an omap_drm_pipeline structure to model display pipelines, made
of a CRTC, an encoder, a connector and a DSS display device. This allows
grouping related parameters together instead of storing them in
independent arrays and thus improves code readability.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
drivers/gpu/drm/omapdrm/omap_crtc.c | 4 +-
drivers/gpu/drm/omapdrm/omap_drv.c | 144 +++++++++++++++++------------------
drivers/gpu/drm/omapdrm/omap_drv.h | 20 +++--
drivers/gpu/drm/omapdrm/omap_fbdev.c | 4 +-
drivers/gpu/drm/omapdrm/omap_irq.c | 4 +-
5 files changed, 84 insertions(+), 92 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
index c5f1915aef67..f5bf553a862f 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -474,8 +474,8 @@ static void omap_crtc_mode_set_nofb(struct drm_crtc *crtc)
* has been changed to the DRM model.
*/
- for (i = 0; i < priv->num_encoders; ++i) {
- struct drm_encoder *encoder = priv->encoders[i];
+ for (i = 0; i < priv->num_pipes; ++i) {
+ struct drm_encoder *encoder = priv->pipes[i].encoder;
if (encoder->crtc == crtc) {
struct omap_dss_device *dssdev;
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index d4952df6b749..d3c74e05834a 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -129,9 +129,9 @@ static const struct drm_mode_config_funcs omap_mode_config_funcs = {
.atomic_commit = drm_atomic_helper_commit,
};
-static int get_connector_type(struct omap_dss_device *dssdev)
+static int get_connector_type(struct omap_dss_device *display)
{
- switch (dssdev->type) {
+ switch (display->type) {
case OMAP_DISPLAY_TYPE_HDMI:
return DRM_MODE_CONNECTOR_HDMIA;
case OMAP_DISPLAY_TYPE_DVI:
@@ -151,65 +151,65 @@ static int get_connector_type(struct omap_dss_device *dssdev)
}
}
-static void omap_disconnect_dssdevs(struct drm_device *ddev)
+static void omap_disconnect_pipelines(struct drm_device *ddev)
{
struct omap_drm_private *priv = ddev->dev_private;
unsigned int i;
- for (i = 0; i < priv->num_dssdevs; i++) {
- struct omap_dss_device *dssdev = priv->dssdevs[i];
+ for (i = 0; i < priv->num_pipes; i++) {
+ struct omap_dss_device *display = priv->pipes[i].display;
- omapdss_device_disconnect(dssdev, NULL);
- priv->dssdevs[i] = NULL;
- omapdss_device_put(dssdev);
+ omapdss_device_disconnect(display, NULL);
+ priv->pipes[i].display = NULL;
+ omapdss_device_put(display);
}
- priv->num_dssdevs = 0;
+ priv->num_pipes = 0;
}
-static int omap_compare_dssdevs(const void *a, const void *b)
+static int omap_compare_pipes(const void *a, const void *b)
{
- const struct omap_dss_device *dssdev1 = *(struct omap_dss_device **)a;
- const struct omap_dss_device *dssdev2 = *(struct omap_dss_device **)b;
+ const struct omap_drm_pipeline *pipe1 = a;
+ const struct omap_drm_pipeline *pipe2 = b;
- if (dssdev1->alias_id > dssdev2->alias_id)
+ if (pipe1->display->alias_id > pipe2->display->alias_id)
return 1;
- else if (dssdev1->alias_id < dssdev2->alias_id)
+ else if (pipe1->display->alias_id < pipe2->display->alias_id)
return -1;
return 0;
}
-static int omap_connect_dssdevs(struct drm_device *ddev)
+static int omap_connect_pipelines(struct drm_device *ddev)
{
struct omap_drm_private *priv = ddev->dev_private;
- struct omap_dss_device *dssdev = NULL;
+ struct omap_dss_device *display = NULL;
int r;
if (!omapdss_stack_is_ready())
return -EPROBE_DEFER;
- for_each_dss_display(dssdev) {
- r = omapdss_device_connect(priv->dss, dssdev, NULL);
+ for_each_dss_display(display) {
+ r = omapdss_device_connect(priv->dss, display, NULL);
if (r == -EPROBE_DEFER) {
- omapdss_device_put(dssdev);
+ omapdss_device_put(display);
goto cleanup;
} else if (r) {
- dev_warn(dssdev->dev, "could not connect display: %s\n",
- dssdev->name);
+ dev_warn(display->dev, "could not connect display: %s\n",
+ display->name);
} else {
- omapdss_device_get(dssdev);
- priv->dssdevs[priv->num_dssdevs++] = dssdev;
- if (priv->num_dssdevs == ARRAY_SIZE(priv->dssdevs)) {
+ omapdss_device_get(display);
+ priv->pipes[priv->num_pipes++].display = display;
+ if (priv->num_pipes == ARRAY_SIZE(priv->pipes)) {
/* To balance the 'for_each_dss_display' loop */
- omapdss_device_put(dssdev);
+ omapdss_device_put(display);
break;
}
}
}
/* Sort the list by DT aliases */
- sort(priv->dssdevs, priv->num_dssdevs, sizeof(priv->dssdevs[0]),
- omap_compare_dssdevs, NULL);
+ sort(priv->pipes, priv->num_pipes, sizeof(priv->pipes[0]),
+ omap_compare_pipes, NULL);
return 0;
@@ -218,7 +218,7 @@ static int omap_connect_dssdevs(struct drm_device *ddev)
* if we are deferring probe, we disconnect the devices we previously
* connected
*/
- omap_disconnect_dssdevs(ddev);
+ omap_disconnect_pipelines(ddev);
return r;
}
@@ -241,7 +241,6 @@ static int omap_modeset_init(struct drm_device *dev)
struct omap_drm_private *priv = dev->dev_private;
int num_ovls = priv->dispc_ops->get_num_ovls(priv->dispc);
int num_mgrs = priv->dispc_ops->get_num_mgrs(priv->dispc);
- int num_crtcs;
unsigned int i;
int ret;
u32 plane_crtc_mask;
@@ -260,22 +259,17 @@ static int omap_modeset_init(struct drm_device *dev)
* configuration does not match the expectations or exceeds
* the available resources, the configuration is rejected.
*/
- num_crtcs = priv->num_dssdevs;
- if (num_crtcs > num_mgrs || num_crtcs > num_ovls ||
- num_crtcs > ARRAY_SIZE(priv->crtcs) ||
- num_crtcs > ARRAY_SIZE(priv->planes) ||
- num_crtcs > ARRAY_SIZE(priv->encoders) ||
- num_crtcs > ARRAY_SIZE(priv->connectors)) {
+ if (priv->num_pipes > num_mgrs || priv->num_pipes > num_ovls) {
dev_err(dev->dev, "%s(): Too many connected displays\n",
__func__);
return -EINVAL;
}
/* Create all planes first. They can all be put to any CRTC. */
- plane_crtc_mask = (1 << num_crtcs) - 1;
+ plane_crtc_mask = (1 << priv->num_pipes) - 1;
for (i = 0; i < num_ovls; i++) {
- enum drm_plane_type type = i < priv->num_dssdevs
+ enum drm_plane_type type = i < priv->num_pipes
? DRM_PLANE_TYPE_PRIMARY
: DRM_PLANE_TYPE_OVERLAY;
struct drm_plane *plane;
@@ -291,36 +285,36 @@ static int omap_modeset_init(struct drm_device *dev)
}
/* Create the CRTCs, encoders and connectors. */
- for (i = 0; i < priv->num_dssdevs; i++) {
- struct omap_dss_device *dssdev = priv->dssdevs[i];
+ for (i = 0; i < priv->num_pipes; i++) {
+ struct omap_drm_pipeline *pipe = &priv->pipes[i];
+ struct omap_dss_device *display = pipe->display;
struct drm_connector *connector;
struct drm_encoder *encoder;
struct drm_crtc *crtc;
- encoder = omap_encoder_init(dev, dssdev);
+ encoder = omap_encoder_init(dev, display);
if (!encoder)
return -ENOMEM;
connector = omap_connector_init(dev,
- get_connector_type(dssdev), dssdev, encoder);
+ get_connector_type(display), display, encoder);
if (!connector)
return -ENOMEM;
- crtc = omap_crtc_init(dev, priv->planes[i], dssdev);
+ crtc = omap_crtc_init(dev, priv->planes[i], display);
if (IS_ERR(crtc))
return PTR_ERR(crtc);
drm_mode_connector_attach_encoder(connector, encoder);
encoder->possible_crtcs = 1 << i;
- priv->crtcs[priv->num_crtcs++] = crtc;
- priv->encoders[priv->num_encoders++] = encoder;
- priv->connectors[priv->num_connectors++] = connector;
+ pipe->crtc = crtc;
+ pipe->encoder = encoder;
+ pipe->connector = connector;
}
- DBG("registered %d planes, %d crtcs, %d encoders and %d connectors\n",
- priv->num_planes, priv->num_crtcs, priv->num_encoders,
- priv->num_connectors);
+ DBG("registered %u planes, %u crtcs/encoders/connectors\n",
+ priv->num_planes, priv->num_pipes);
dev->mode_config.min_width = 8;
dev->mode_config.min_height = 2;
@@ -352,11 +346,11 @@ static void omap_modeset_enable_external_hpd(struct drm_device *ddev)
struct omap_drm_private *priv = ddev->dev_private;
int i;
- for (i = 0; i < priv->num_dssdevs; i++) {
- struct omap_dss_device *dssdev = priv->dssdevs[i];
+ for (i = 0; i < priv->num_pipes; i++) {
+ struct omap_dss_device *display = priv->pipes[i].display;
- if (dssdev->driver->enable_hpd)
- dssdev->driver->enable_hpd(dssdev);
+ if (display->driver->enable_hpd)
+ display->driver->enable_hpd(display);
}
}
@@ -368,11 +362,11 @@ static void omap_modeset_disable_external_hpd(struct drm_device *ddev)
struct omap_drm_private *priv = ddev->dev_private;
int i;
- for (i = 0; i < priv->num_dssdevs; i++) {
- struct omap_dss_device *dssdev = priv->dssdevs[i];
+ for (i = 0; i < priv->num_pipes; i++) {
+ struct omap_dss_device *display = priv->pipes[i].display;
- if (dssdev->driver->disable_hpd)
- dssdev->driver->disable_hpd(dssdev);
+ if (display->driver->disable_hpd)
+ display->driver->disable_hpd(display);
}
}
@@ -558,7 +552,7 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
omap_crtc_pre_init(priv);
- ret = omap_connect_dssdevs(ddev);
+ ret = omap_connect_pipelines(ddev);
if (ret)
goto err_crtc_uninit;
@@ -583,14 +577,14 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
}
/* Initialize vblank handling, start with all CRTCs disabled. */
- ret = drm_vblank_init(ddev, priv->num_crtcs);
+ ret = drm_vblank_init(ddev, priv->num_pipes);
if (ret) {
dev_err(priv->dev, "could not init vblank\n");
goto err_cleanup_modeset;
}
- for (i = 0; i < priv->num_crtcs; i++)
- drm_crtc_vblank_off(priv->crtcs[i]);
+ for (i = 0; i < priv->num_pipes; i++)
+ drm_crtc_vblank_off(priv->pipes[i].crtc);
omap_fbdev_init(ddev);
@@ -618,7 +612,7 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
err_gem_deinit:
omap_gem_deinit(ddev);
destroy_workqueue(priv->wq);
- omap_disconnect_dssdevs(ddev);
+ omap_disconnect_pipelines(ddev);
err_crtc_uninit:
omap_crtc_pre_uninit(priv);
drm_dev_unref(ddev);
@@ -647,7 +641,7 @@ static void omapdrm_cleanup(struct omap_drm_private *priv)
destroy_workqueue(priv->wq);
- omap_disconnect_dssdevs(ddev);
+ omap_disconnect_pipelines(ddev);
omap_crtc_pre_uninit(priv);
drm_dev_unref(ddev);
@@ -697,17 +691,17 @@ static int omap_drm_suspend_all_displays(struct drm_device *ddev)
struct omap_drm_private *priv = ddev->dev_private;
int i;
- for (i = 0; i < priv->num_dssdevs; i++) {
- struct omap_dss_device *dssdev = priv->dssdevs[i];
+ for (i = 0; i < priv->num_pipes; i++) {
+ struct omap_dss_device *display = priv->pipes[i].display;
- if (!dssdev->driver)
+ if (!display->driver)
continue;
- if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
- dssdev->driver->disable(dssdev);
- dssdev->activate_after_resume = true;
+ if (display->state == OMAP_DSS_DISPLAY_ACTIVE) {
+ display->driver->disable(display);
+ display->activate_after_resume = true;
} else {
- dssdev->activate_after_resume = false;
+ display->activate_after_resume = false;
}
}
@@ -719,15 +713,15 @@ static int omap_drm_resume_all_displays(struct drm_device *ddev)
struct omap_drm_private *priv = ddev->dev_private;
int i;
- for (i = 0; i < priv->num_dssdevs; i++) {
- struct omap_dss_device *dssdev = priv->dssdevs[i];
+ for (i = 0; i < priv->num_pipes; i++) {
+ struct omap_dss_device *display = priv->pipes[i].display;
- if (!dssdev->driver)
+ if (!display->driver)
continue;
- if (dssdev->activate_after_resume) {
- dssdev->driver->enable(dssdev);
- dssdev->activate_after_resume = false;
+ if (display->activate_after_resume) {
+ display->driver->enable(display);
+ display->activate_after_resume = false;
}
}
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index 69d261f8e56b..64896e8d4d9d 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -45,6 +45,13 @@
struct omap_drm_usergart;
+struct omap_drm_pipeline {
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ struct omap_dss_device *display;
+};
+
struct omap_drm_private {
struct drm_device *ddev;
struct device *dev;
@@ -54,21 +61,12 @@ struct omap_drm_private {
struct dispc_device *dispc;
const struct dispc_ops *dispc_ops;
- unsigned int num_dssdevs;
- struct omap_dss_device *dssdevs[8];
-
- unsigned int num_crtcs;
- struct drm_crtc *crtcs[8];
+ unsigned int num_pipes;
+ struct omap_drm_pipeline pipes[8];
unsigned int num_planes;
struct drm_plane *planes[8];
- unsigned int num_encoders;
- struct drm_encoder *encoders[8];
-
- unsigned int num_connectors;
- struct drm_connector *connectors[8];
-
struct drm_fb_helper *fbdev;
struct workqueue_struct *wq;
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 0f66c74a54b0..7807feab125b 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -249,7 +249,7 @@ void omap_fbdev_init(struct drm_device *dev)
struct drm_fb_helper *helper;
int ret = 0;
- if (!priv->num_crtcs || !priv->num_connectors)
+ if (!priv->num_pipes)
return;
fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
@@ -262,7 +262,7 @@ void omap_fbdev_init(struct drm_device *dev)
drm_fb_helper_prepare(dev, helper, &omap_fb_helper_funcs);
- ret = drm_fb_helper_init(dev, helper, priv->num_connectors);
+ ret = drm_fb_helper_init(dev, helper, priv->num_pipes);
if (ret)
goto fail;
diff --git a/drivers/gpu/drm/omapdrm/omap_irq.c b/drivers/gpu/drm/omapdrm/omap_irq.c
index c85115049f86..329ad26d6d50 100644
--- a/drivers/gpu/drm/omapdrm/omap_irq.c
+++ b/drivers/gpu/drm/omapdrm/omap_irq.c
@@ -206,8 +206,8 @@ static irqreturn_t omap_irq_handler(int irq, void *arg)
VERB("irqs: %08x", irqstatus);
- for (id = 0; id < priv->num_crtcs; id++) {
- struct drm_crtc *crtc = priv->crtcs[id];
+ for (id = 0; id < priv->num_pipes; id++) {
+ struct drm_crtc *crtc = priv->pipes[id].crtc;
enum omap_channel channel = omap_crtc_channel(crtc);
if (irqstatus & priv->dispc_ops->mgr_get_vsync_irq(priv->dispc, channel)) {
--
Regards,
Laurent Pinchart
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