@@ -284,10 +284,10 @@ struct exynos_dsi_driver_data {
struct exynos_dsi_plat_data {
enum exynos_dsi_type hw_type;
+ const struct exynos_dsim_host_ops *host_ops;
};
struct exynos_dsi {
- struct drm_encoder encoder;
struct mipi_dsi_host dsi_host;
struct drm_bridge bridge;
struct drm_bridge *out_bridge;
@@ -317,6 +317,19 @@ struct exynos_dsi {
const struct exynos_dsi_driver_data *driver_data;
const struct exynos_dsi_plat_data *plat_data;
+
+ void *priv;
+};
+
+struct exynos_dsim_host_ops {
+ int (*register_host)(struct exynos_dsi *dsim);
+ void (*unregister_host)(struct exynos_dsi *dsim);
+ int (*attach)(struct exynos_dsi *dsim, struct mipi_dsi_device *device);
+ int (*detach)(struct exynos_dsi *dsim, struct mipi_dsi_device *device);
+};
+
+struct exynos_dsi_enc {
+ struct drm_encoder encoder;
};
#define host_to_dsi(host) container_of(host, struct exynos_dsi, dsi_host)
@@ -1321,7 +1334,8 @@ static irqreturn_t exynos_dsi_irq(int irq, void *dev_id)
static irqreturn_t exynos_dsi_te_irq_handler(int irq, void *dev_id)
{
struct exynos_dsi *dsi = (struct exynos_dsi *)dev_id;
- struct drm_encoder *encoder = &dsi->encoder;
+ struct exynos_dsi_enc *dsi_enc = dsi->priv;
+ struct drm_encoder *encoder = &dsi_enc->encoder;
if (dsi->state & DSIM_STATE_VIDOUT_AVAILABLE)
exynos_drm_crtc_te_handler(encoder->crtc);
@@ -1590,9 +1604,8 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
struct mipi_dsi_device *device)
{
struct exynos_dsi *dsi = host_to_dsi(host);
+ const struct exynos_dsi_plat_data *pdata = dsi->plat_data;
struct device *dev = dsi->dev;
- struct drm_encoder *encoder = &dsi->encoder;
- struct drm_device *drm = encoder->dev;
struct drm_bridge *bridge;
struct drm_panel *panel;
int ret;
@@ -1617,35 +1630,15 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
drm_bridge_add(&dsi->bridge);
- drm_bridge_attach(encoder, &dsi->bridge,
- list_first_entry_or_null(&encoder->bridge_chain,
- struct drm_bridge,
- chain_node), 0);
-
- /*
- * This is a temporary solution and should be made by more generic way.
- *
- * If attached panel device is for command mode one, dsi should register
- * TE interrupt handler.
- */
- if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO)) {
- ret = exynos_dsi_register_te_irq(dsi, &device->dev);
- if (ret)
+ if (pdata->host_ops && pdata->host_ops->attach) {
+ ret = pdata->host_ops->attach(dsi, device);
+ if (ret < 0)
return ret;
}
- mutex_lock(&drm->mode_config.mutex);
-
dsi->lanes = device->lanes;
dsi->format = device->format;
dsi->mode_flags = device->mode_flags;
- exynos_drm_crtc_get_by_type(drm, EXYNOS_DISPLAY_TYPE_LCD)->i80_mode =
- !(dsi->mode_flags & MIPI_DSI_MODE_VIDEO);
-
- mutex_unlock(&drm->mode_config.mutex);
-
- if (drm->mode_config.poll_enabled)
- drm_kms_helper_hotplug_event(drm);
return 0;
}
@@ -1654,12 +1647,14 @@ static int exynos_dsi_host_detach(struct mipi_dsi_host *host,
struct mipi_dsi_device *device)
{
struct exynos_dsi *dsi = host_to_dsi(host);
- struct drm_device *drm = dsi->encoder.dev;
-
- if (drm->mode_config.poll_enabled)
- drm_kms_helper_hotplug_event(drm);
+ const struct exynos_dsi_plat_data *pdata = dsi->plat_data;
+ int ret;
- exynos_dsi_unregister_te_irq(dsi);
+ if (pdata->host_ops && pdata->host_ops->detach) {
+ ret = pdata->host_ops->detach(dsi, device);
+ if (ret < 0)
+ return ret;
+ }
drm_bridge_remove(&dsi->bridge);
@@ -1733,11 +1728,67 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi)
return 0;
}
+static int _exynos_dsi_host_attach(struct exynos_dsi *dsim,
+ struct mipi_dsi_device *device)
+{
+ struct exynos_dsi_enc *dsi_enc = dsim->priv;
+ struct drm_encoder *encoder = &dsi_enc->encoder;
+ struct drm_device *drm = encoder->dev;
+ int ret;
+
+ drm_bridge_attach(encoder, &dsim->bridge,
+ list_first_entry_or_null(&encoder->bridge_chain,
+ struct drm_bridge,
+ chain_node), 0);
+
+ /*
+ * This is a temporary solution and should be made by more generic way.
+ *
+ * If attached panel device is for command mode one, dsi should register
+ * TE interrupt handler.
+ */
+ if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO)) {
+ ret = exynos_dsi_register_te_irq(dsim, &device->dev);
+ if (ret)
+ return ret;
+ }
+
+ mutex_lock(&drm->mode_config.mutex);
+
+ dsim->lanes = device->lanes;
+ dsim->format = device->format;
+ dsim->mode_flags = device->mode_flags;
+ exynos_drm_crtc_get_by_type(drm, EXYNOS_DISPLAY_TYPE_LCD)->i80_mode =
+ !(dsim->mode_flags & MIPI_DSI_MODE_VIDEO);
+
+ mutex_unlock(&drm->mode_config.mutex);
+
+ if (drm->mode_config.poll_enabled)
+ drm_kms_helper_hotplug_event(drm);
+
+ return 0;
+}
+
+static int _exynos_dsi_host_detach(struct exynos_dsi *dsim,
+ struct mipi_dsi_device *device)
+{
+ struct exynos_dsi_enc *dsi_enc = dsim->priv;
+ struct drm_device *drm = dsi_enc->encoder.dev;
+
+ if (drm->mode_config.poll_enabled)
+ drm_kms_helper_hotplug_event(drm);
+
+ exynos_dsi_unregister_te_irq(dsim);
+
+ return 0;
+}
+
static int exynos_dsi_bind(struct device *dev, struct device *master,
void *data)
{
struct exynos_dsi *dsi = dev_get_drvdata(dev);
- struct drm_encoder *encoder = &dsi->encoder;
+ struct exynos_dsi_enc *dsi_enc = dsi->priv;
+ struct drm_encoder *encoder = &dsi_enc->encoder;
struct drm_device *drm_dev = data;
int ret;
@@ -1755,7 +1806,7 @@ static void exynos_dsi_unbind(struct device *dev, struct device *master,
{
struct exynos_dsi *dsi = dev_get_drvdata(dev);
- exynos_dsi_atomic_disable(&dsi->bridge, NULL);
+ dsi->bridge.funcs->atomic_disable(&dsi->bridge, NULL);
mipi_dsi_host_unregister(&dsi->dsi_host);
}
@@ -1765,6 +1816,40 @@ static const struct component_ops exynos_dsi_component_ops = {
.unbind = exynos_dsi_unbind,
};
+static int exynos_dsi_register_host(struct exynos_dsi *dsim)
+{
+ struct exynos_dsi_enc *dsi_enc;
+
+ dsi_enc = devm_kzalloc(dsim->dev, sizeof(*dsi_enc), GFP_KERNEL);
+ if (!dsi_enc)
+ return -ENOMEM;
+
+ dsim->priv = dsi_enc;
+ dsim->bridge.pre_enable_prev_first = true;
+
+ return component_add(dsim->dev, &exynos_dsi_component_ops);
+}
+
+static void exynos_dsi_unregister_host(struct exynos_dsi *dsim)
+{
+ component_del(dsim->dev, &exynos_dsi_component_ops);
+}
+
+static int generic_dsim_register_host(struct exynos_dsi *dsim)
+{
+ return mipi_dsi_host_register(&dsim->dsi_host);
+}
+
+static void generic_dsim_unregister_host(struct exynos_dsi *dsim)
+{
+ mipi_dsi_host_unregister(&dsim->dsi_host);
+}
+
+static const struct exynos_dsim_host_ops generic_dsim_host_ops = {
+ .register_host = generic_dsim_register_host,
+ .unregister_host = generic_dsim_unregister_host,
+};
+
static const struct drm_bridge_timings dsim_bridge_timings_de_low = {
.input_bus_flags = DRM_BUS_FLAG_DE_LOW,
};
@@ -1859,7 +1944,9 @@ static int exynos_dsi_probe(struct platform_device *pdev)
if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM)
dsi->bridge.timings = &dsim_bridge_timings_de_low;
- ret = component_add(dev, &exynos_dsi_component_ops);
+ if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->register_host)
+ ret = dsi->plat_data->host_ops->register_host(dsi);
+
if (ret)
goto err_disable_runtime;
@@ -1950,24 +2037,36 @@ static const struct dev_pm_ops exynos_dsi_pm_ops = {
pm_runtime_force_resume)
};
+static const struct exynos_dsim_host_ops exynos_dsi_host_ops = {
+ .register_host = exynos_dsi_register_host,
+ .unregister_host = exynos_dsi_unregister_host,
+ .attach = _exynos_dsi_host_attach,
+ .detach = _exynos_dsi_host_detach,
+};
+
static const struct exynos_dsi_plat_data exynos3250_dsi_pdata = {
.hw_type = DSIM_TYPE_EXYNOS3250,
+ .host_ops = &exynos_dsi_host_ops,
};
static const struct exynos_dsi_plat_data exynos4210_dsi_pdata = {
.hw_type = DSIM_TYPE_EXYNOS4210,
+ .host_ops = &exynos_dsi_host_ops,
};
static const struct exynos_dsi_plat_data exynos5410_dsi_pdata = {
.hw_type = DSIM_TYPE_EXYNOS5410,
+ .host_ops = &exynos_dsi_host_ops,
};
static const struct exynos_dsi_plat_data exynos5422_dsi_pdata = {
.hw_type = DSIM_TYPE_EXYNOS5422,
+ .host_ops = &exynos_dsi_host_ops,
};
static const struct exynos_dsi_plat_data exynos5433_dsi_pdata = {
.hw_type = DSIM_TYPE_EXYNOS5433,
+ .host_ops = &exynos_dsi_host_ops,
};
static const struct of_device_id exynos_dsi_of_match[] = {