static int __exit tpd_remove(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct omap_dss_device *dssdev = &ddata->dssdev;
struct omap_dss_device *in = ddata->in;
tpd_uninit_pins(pdev);
unregister_pm_notifier(&hdmi_i2c2_hack_pm_notif_block);
hdmi_i2c2_hack_suspend_mcasp();
omapdss_unregister_output(&ddata->dssdev);
WARN_ON(omapdss_device_is_enabled(dssdev));
if (omapdss_device_is_enabled(dssdev))
tpd_disable(dssdev);
WARN_ON(omapdss_device_is_connected(dssdev));
if (omapdss_device_is_connected(dssdev))
tpd_disconnect(dssdev, dssdev->dst);
omap_dss_put_device(in);
return 0;
}
static ssize_t display_enabled_store(struct omap_dss_device *dssdev,
const char *buf, size_t size)
{
int r;
bool enable;
r = strtobool(buf, &enable);
if (r)
return r;
if (enable == omapdss_device_is_enabled(dssdev))
return size;
if (omapdss_device_is_connected(dssdev) == false)
return -ENODEV;
if (enable) {
r = dssdev->driver->enable(dssdev);
if (r)
return r;
} else {
dssdev->driver->disable(dssdev);
}
return size;
}
static int tfp410_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
in->ops.dpi->set_timings(in, &ddata->timings);
if (ddata->data_lines)
in->ops.dpi->set_data_lines(in, ddata->data_lines);
r = in->ops.dpi->enable(in);
if (r)
return r;
if (gpio_is_valid(ddata->pd_gpio))
gpio_set_value_cansleep(ddata->pd_gpio, 1);
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static int opa362_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
dev_dbg(dssdev->dev, "enable\n");
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
in->ops.atv->set_timings(in, &ddata->timings);
r = in->ops.atv->enable(in);
if (r)
return r;
if (ddata->enable_gpio)
gpiod_set_value_cansleep(ddata->enable_gpio, 1);
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static int panel_dpi_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *src = dssdev->src;
int r;
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
r = src->ops->enable(src);
if (r)
return r;
r = regulator_enable(ddata->vcc_supply);
if (r) {
src->ops->disable(src);
return r;
}
gpiod_set_value_cansleep(ddata->enable_gpio, 1);
backlight_enable(ddata->backlight);
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static int panel_dpi_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
if (ddata->data_lines)
in->ops.dpi->set_data_lines(in, ddata->data_lines);
in->ops.dpi->set_timings(in, &ddata->vm);
r = in->ops.dpi->enable(in);
if (r)
return r;
r = regulator_enable(ddata->vcc_supply);
if (r) {
in->ops.dpi->disable(in);
return r;
}
gpiod_set_value_cansleep(ddata->enable_gpio, 1);
if (gpio_is_valid(ddata->backlight_gpio))
gpio_set_value_cansleep(ddata->backlight_gpio, 1);
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static void dvic_disconnect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
if (!omapdss_device_is_connected(dssdev))
return;
in->ops.dvi->disconnect(in, dssdev);
}
static void tfp410_disconnect(struct omap_dss_device *dssdev,
struct omap_dss_device *dst)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
WARN_ON(!omapdss_device_is_connected(dssdev));
if (!omapdss_device_is_connected(dssdev))
return;
WARN_ON(dst != dssdev->dst);
if (dst != dssdev->dst)
return;
dst->src = NULL;
dssdev->dst = NULL;
in->ops.dpi->disconnect(in, &ddata->dssdev);
}
static int __exit opa362_remove(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct omap_dss_device *dssdev = &ddata->dssdev;
struct omap_dss_device *in = ddata->in;
omapdss_unregister_output(&ddata->dssdev);
WARN_ON(omapdss_device_is_enabled(dssdev));
if (omapdss_device_is_enabled(dssdev))
opa362_disable(dssdev);
WARN_ON(omapdss_device_is_connected(dssdev));
if (omapdss_device_is_connected(dssdev))
opa362_disconnect(dssdev, dssdev->dst);
omap_dss_put_device(in);
return 0;
}
static void acx565akm_disconnect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
if (!omapdss_device_is_connected(dssdev))
return;
in->ops.sdi->disconnect(in, dssdev);
omap_dss_put_device(in);
ddata->in = NULL;
}
static int dvic_connect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
if (omapdss_device_is_connected(dssdev))
return 0;
r = in->ops.dvi->connect(in, dssdev);
if (r)
return r;
return 0;
}
static int tfp410_connect(struct omap_dss_device *dssdev,
struct omap_dss_device *dst)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
if (omapdss_device_is_connected(dssdev))
return -EBUSY;
r = in->ops.dpi->connect(in, dssdev);
if (r)
return r;
dst->src = dssdev;
dssdev->dst = dst;
return 0;
}
static int dvic_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
in->ops.dvi->set_timings(in, &ddata->timings);
r = in->ops.dvi->enable(in);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static int acx565akm_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
int r;
dev_dbg(dssdev->dev, "%s\n", __func__);
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
mutex_lock(&ddata->mutex);
r = acx565akm_panel_power_on(dssdev);
mutex_unlock(&ddata->mutex);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static int tpo_td043_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
if (ddata->data_lines)
in->ops.dpi->set_data_lines(in, ddata->data_lines);
in->ops.dpi->set_timings(in, &ddata->videomode);
r = in->ops.dpi->enable(in);
if (r)
return r;
/*
* If we are resuming from system suspend, SPI clocks might not be
* enabled yet, so we'll program the LCD from SPI PM resume callback.
*/
if (!ddata->spi_suspended) {
r = tpo_td043_power_on(ddata);
if (r) {
in->ops.dpi->disable(in);
return r;
}
}
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static int acx565akm_connect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in;
int r;
if (omapdss_device_is_connected(dssdev))
return 0;
in = omapdss_of_find_source_for_first_ep(dssdev->dev->of_node);
if (IS_ERR(in)) {
dev_err(dssdev->dev, "failed to find video source\n");
return PTR_ERR(in);
}
r = in->ops.sdi->connect(in, dssdev);
if (r) {
omap_dss_put_device(in);
return r;
}
ddata->in = in;
return 0;
}
static int omap_modeset_init(struct drm_device *dev)
{
struct omap_drm_private *priv = dev->dev_private;
struct omap_dss_device *dssdev = NULL;
int num_ovls = dss_feat_get_num_ovls();
int num_mgrs = dss_feat_get_num_mgrs();
int num_crtcs;
int i, id = 0;
drm_mode_config_init(dev);
omap_drm_irq_install(dev);
/*
* We usually don't want to create a CRTC for each manager, at least
* not until we have a way to expose private planes to userspace.
* Otherwise there would not be enough video pipes left for drm planes.
* We use the num_crtc argument to limit the number of crtcs we create.
*/
num_crtcs = min3(num_crtc, num_mgrs, num_ovls);
dssdev = NULL;
for_each_dss_dev(dssdev) {
struct drm_connector *connector;
struct drm_encoder *encoder;
enum omap_channel channel;
struct omap_overlay_manager *mgr;
if (!omapdss_device_is_connected(dssdev))
continue;
encoder = omap_encoder_init(dev, dssdev);
if (!encoder) {
dev_err(dev->dev, "could not create encoder: %s\n",
dssdev->name);
return -ENOMEM;
}
connector = omap_connector_init(dev,
get_connector_type(dssdev), dssdev, encoder);
if (!connector) {
dev_err(dev->dev, "could not create connector: %s\n",
dssdev->name);
return -ENOMEM;
}
BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders));
BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors));
priv->encoders[priv->num_encoders++] = encoder;
priv->connectors[priv->num_connectors++] = connector;
drm_mode_connector_attach_encoder(connector, encoder);
/*
* if we have reached the limit of the crtcs we are allowed to
* create, let's not try to look for a crtc for this
* panel/encoder and onwards, we will, of course, populate the
* the possible_crtcs field for all the encoders with the final
* set of crtcs we create
*/
if (id == num_crtcs)
continue;
/*
* get the recommended DISPC channel for this encoder. For now,
* we only try to get create a crtc out of the recommended, the
* other possible channels to which the encoder can connect are
* not considered.
*/
mgr = omapdss_find_mgr_from_display(dssdev);
channel = mgr->id;
/*
* if this channel hasn't already been taken by a previously
* allocated crtc, we create a new crtc for it
*/
if (!channel_used(dev, channel)) {
struct drm_plane *plane;
struct drm_crtc *crtc;
plane = omap_plane_init(dev, id, true);
crtc = omap_crtc_init(dev, plane, channel, id);
BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs));
priv->crtcs[id] = crtc;
priv->num_crtcs++;
priv->planes[id] = plane;
priv->num_planes++;
id++;
}
}
/*
* we have allocated crtcs according to the need of the panels/encoders,
* adding more crtcs here if needed
*/
for (; id < num_crtcs; id++) {
/* find a free manager for this crtc */
for (i = 0; i < num_mgrs; i++) {
if (!channel_used(dev, i)) {
struct drm_plane *plane;
struct drm_crtc *crtc;
plane = omap_plane_init(dev, id, true);
crtc = omap_crtc_init(dev, plane, i, id);
BUG_ON(priv->num_crtcs >=
ARRAY_SIZE(priv->crtcs));
priv->crtcs[id] = crtc;
priv->num_crtcs++;
priv->planes[id] = plane;
priv->num_planes++;
break;
} else {
continue;
}
}
if (i == num_mgrs) {
/* this shouldn't really happen */
dev_err(dev->dev, "no managers left for crtc\n");
return -ENOMEM;
}
}
/*
* Create normal planes for the remaining overlays:
*/
for (; id < num_ovls; id++) {
struct drm_plane *plane = omap_plane_init(dev, id, false);
BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes));
priv->planes[priv->num_planes++] = plane;
}
for (i = 0; i < priv->num_encoders; i++) {
struct drm_encoder *encoder = priv->encoders[i];
struct omap_dss_device *dssdev =
omap_encoder_get_dssdev(encoder);
struct omap_dss_device *output;
output = omapdss_find_output_from_display(dssdev);
/* figure out which crtc's we can connect the encoder to: */
encoder->possible_crtcs = 0;
for (id = 0; id < priv->num_crtcs; id++) {
struct drm_crtc *crtc = priv->crtcs[id];
enum omap_channel crtc_channel;
crtc_channel = omap_crtc_channel(crtc);
if (output->dispc_channel == crtc_channel) {
encoder->possible_crtcs |= (1 << id);
break;
}
}
omap_dss_put_device(output);
}
DBG("registered %d planes, %d crtcs, %d encoders and %d connectors\n",
priv->num_planes, priv->num_crtcs, priv->num_encoders,
priv->num_connectors);
dev->mode_config.min_width = 32;
dev->mode_config.min_height = 32;
/* note: eventually will need some cpu_is_omapXYZ() type stuff here
* to fill in these limits properly on different OMAP generations..
*/
dev->mode_config.max_width = 2048;
dev->mode_config.max_height = 2048;
dev->mode_config.funcs = &omap_mode_config_funcs;
return 0;
}
static int omap_modeset_init(struct drm_device *dev)
{
struct omap_drm_private *priv = dev->dev_private;
struct omap_dss_device *dssdev = NULL;
int num_ovls = priv->dispc_ops->get_num_ovls();
int num_mgrs = priv->dispc_ops->get_num_mgrs();
int num_crtcs, crtc_idx, plane_idx;
int ret;
u32 plane_crtc_mask;
drm_mode_config_init(dev);
ret = omap_modeset_init_properties(dev);
if (ret < 0)
return ret;
/*
* This function creates exactly one connector, encoder, crtc,
* and primary plane per each connected dss-device. Each
* connector->encoder->crtc chain is expected to be separate
* and each crtc is connect to a single dss-channel. If the
* configuration does not match the expectations or exceeds
* the available resources, the configuration is rejected.
*/
num_crtcs = 0;
for_each_dss_dev(dssdev)
if (omapdss_device_is_connected(dssdev))
num_crtcs++;
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)) {
dev_err(dev->dev, "%s(): Too many connected displays\n",
__func__);
return -EINVAL;
}
/* All planes can be put to any CRTC */
plane_crtc_mask = (1 << num_crtcs) - 1;
dssdev = NULL;
crtc_idx = 0;
plane_idx = 0;
for_each_dss_dev(dssdev) {
struct drm_connector *connector;
struct drm_encoder *encoder;
struct drm_plane *plane;
struct drm_crtc *crtc;
if (!omapdss_device_is_connected(dssdev))
continue;
encoder = omap_encoder_init(dev, dssdev);
if (!encoder)
return -ENOMEM;
connector = omap_connector_init(dev,
get_connector_type(dssdev), dssdev, encoder);
if (!connector)
return -ENOMEM;
plane = omap_plane_init(dev, plane_idx, DRM_PLANE_TYPE_PRIMARY,
plane_crtc_mask);
if (IS_ERR(plane))
return PTR_ERR(plane);
crtc = omap_crtc_init(dev, plane, dssdev);
if (IS_ERR(crtc))
return PTR_ERR(crtc);
drm_mode_connector_attach_encoder(connector, encoder);
encoder->possible_crtcs = (1 << crtc_idx);
priv->crtcs[priv->num_crtcs++] = crtc;
priv->planes[priv->num_planes++] = plane;
priv->encoders[priv->num_encoders++] = encoder;
priv->connectors[priv->num_connectors++] = connector;
plane_idx++;
crtc_idx++;
}
/*
* Create normal planes for the remaining overlays:
*/
for (; plane_idx < num_ovls; plane_idx++) {
struct drm_plane *plane;
if (WARN_ON(priv->num_planes >= ARRAY_SIZE(priv->planes)))
return -EINVAL;
plane = omap_plane_init(dev, plane_idx, DRM_PLANE_TYPE_OVERLAY,
plane_crtc_mask);
if (IS_ERR(plane))
return PTR_ERR(plane);
priv->planes[priv->num_planes++] = plane;
}
DBG("registered %d planes, %d crtcs, %d encoders and %d connectors\n",
priv->num_planes, priv->num_crtcs, priv->num_encoders,
priv->num_connectors);
dev->mode_config.min_width = 8;
dev->mode_config.min_height = 2;
/* note: eventually will need some cpu_is_omapXYZ() type stuff here
* to fill in these limits properly on different OMAP generations..
*/
dev->mode_config.max_width = 2048;
dev->mode_config.max_height = 2048;
dev->mode_config.funcs = &omap_mode_config_funcs;
dev->mode_config.helper_private = &omap_mode_config_helper_funcs;
drm_mode_config_reset(dev);
omap_drm_irq_install(dev);
return 0;
}