ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/msm/dsi/dsi.c b/marvell/linux/drivers/gpu/drm/msm/dsi/dsi.c
new file mode 100644
index 0000000..fedade8
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/msm/dsi/dsi.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ */
+
+#include "dsi.h"
+
+struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi)
+{
+ if (!msm_dsi || !msm_dsi_device_connected(msm_dsi))
+ return NULL;
+
+ return msm_dsi->encoder;
+}
+
+static int dsi_get_phy(struct msm_dsi *msm_dsi)
+{
+ struct platform_device *pdev = msm_dsi->pdev;
+ struct platform_device *phy_pdev;
+ struct device_node *phy_node;
+
+ phy_node = of_parse_phandle(pdev->dev.of_node, "phys", 0);
+ if (!phy_node) {
+ DRM_DEV_ERROR(&pdev->dev, "cannot find phy device\n");
+ return -ENXIO;
+ }
+
+ phy_pdev = of_find_device_by_node(phy_node);
+ if (phy_pdev) {
+ msm_dsi->phy = platform_get_drvdata(phy_pdev);
+ msm_dsi->phy_dev = &phy_pdev->dev;
+ }
+
+ of_node_put(phy_node);
+
+ if (!phy_pdev) {
+ DRM_DEV_ERROR(&pdev->dev, "%s: phy driver is not ready\n", __func__);
+ return -EPROBE_DEFER;
+ }
+ if (!msm_dsi->phy) {
+ put_device(&phy_pdev->dev);
+ DRM_DEV_ERROR(&pdev->dev, "%s: phy driver is not ready\n", __func__);
+ return -EPROBE_DEFER;
+ }
+
+ return 0;
+}
+
+static void dsi_destroy(struct msm_dsi *msm_dsi)
+{
+ if (!msm_dsi)
+ return;
+
+ msm_dsi_manager_unregister(msm_dsi);
+
+ if (msm_dsi->phy_dev) {
+ put_device(msm_dsi->phy_dev);
+ msm_dsi->phy = NULL;
+ msm_dsi->phy_dev = NULL;
+ }
+
+ if (msm_dsi->host) {
+ msm_dsi_host_destroy(msm_dsi->host);
+ msm_dsi->host = NULL;
+ }
+
+ platform_set_drvdata(msm_dsi->pdev, NULL);
+}
+
+static struct msm_dsi *dsi_init(struct platform_device *pdev)
+{
+ struct msm_dsi *msm_dsi;
+ int ret;
+
+ if (!pdev)
+ return ERR_PTR(-ENXIO);
+
+ msm_dsi = devm_kzalloc(&pdev->dev, sizeof(*msm_dsi), GFP_KERNEL);
+ if (!msm_dsi)
+ return ERR_PTR(-ENOMEM);
+ DBG("dsi probed=%p", msm_dsi);
+
+ msm_dsi->id = -1;
+ msm_dsi->pdev = pdev;
+ platform_set_drvdata(pdev, msm_dsi);
+
+ /* Init dsi host */
+ ret = msm_dsi_host_init(msm_dsi);
+ if (ret)
+ goto destroy_dsi;
+
+ /* GET dsi PHY */
+ ret = dsi_get_phy(msm_dsi);
+ if (ret)
+ goto destroy_dsi;
+
+ /* Register to dsi manager */
+ ret = msm_dsi_manager_register(msm_dsi);
+ if (ret)
+ goto destroy_dsi;
+
+ return msm_dsi;
+
+destroy_dsi:
+ dsi_destroy(msm_dsi);
+ return ERR_PTR(ret);
+}
+
+static int dsi_bind(struct device *dev, struct device *master, void *data)
+{
+ struct drm_device *drm = dev_get_drvdata(master);
+ struct msm_drm_private *priv = drm->dev_private;
+ struct platform_device *pdev = to_platform_device(dev);
+ struct msm_dsi *msm_dsi;
+
+ DBG("");
+ msm_dsi = dsi_init(pdev);
+ if (IS_ERR(msm_dsi)) {
+ /* Don't fail the bind if the dsi port is not connected */
+ if (PTR_ERR(msm_dsi) == -ENODEV)
+ return 0;
+ else
+ return PTR_ERR(msm_dsi);
+ }
+
+ priv->dsi[msm_dsi->id] = msm_dsi;
+
+ return 0;
+}
+
+static void dsi_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct drm_device *drm = dev_get_drvdata(master);
+ struct msm_drm_private *priv = drm->dev_private;
+ struct msm_dsi *msm_dsi = dev_get_drvdata(dev);
+ int id = msm_dsi->id;
+
+ if (priv->dsi[id]) {
+ dsi_destroy(msm_dsi);
+ priv->dsi[id] = NULL;
+ }
+}
+
+static const struct component_ops dsi_ops = {
+ .bind = dsi_bind,
+ .unbind = dsi_unbind,
+};
+
+static int dsi_dev_probe(struct platform_device *pdev)
+{
+ return component_add(&pdev->dev, &dsi_ops);
+}
+
+static int dsi_dev_remove(struct platform_device *pdev)
+{
+ DBG("");
+ component_del(&pdev->dev, &dsi_ops);
+ return 0;
+}
+
+static const struct of_device_id dt_match[] = {
+ { .compatible = "qcom,mdss-dsi-ctrl" },
+ {}
+};
+
+static const struct dev_pm_ops dsi_pm_ops = {
+ SET_RUNTIME_PM_OPS(msm_dsi_runtime_suspend, msm_dsi_runtime_resume, NULL)
+};
+
+static struct platform_driver dsi_driver = {
+ .probe = dsi_dev_probe,
+ .remove = dsi_dev_remove,
+ .driver = {
+ .name = "msm_dsi",
+ .of_match_table = dt_match,
+ .pm = &dsi_pm_ops,
+ },
+};
+
+void __init msm_dsi_register(void)
+{
+ DBG("");
+ msm_dsi_phy_driver_register();
+ platform_driver_register(&dsi_driver);
+}
+
+void __exit msm_dsi_unregister(void)
+{
+ DBG("");
+ msm_dsi_phy_driver_unregister();
+ platform_driver_unregister(&dsi_driver);
+}
+
+int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
+ struct drm_encoder *encoder)
+{
+ struct msm_drm_private *priv;
+ struct drm_bridge *ext_bridge;
+ int ret;
+
+ if (WARN_ON(!encoder) || WARN_ON(!msm_dsi) || WARN_ON(!dev))
+ return -EINVAL;
+
+ priv = dev->dev_private;
+
+ if (priv->num_bridges == ARRAY_SIZE(priv->bridges)) {
+ DRM_DEV_ERROR(dev->dev, "too many bridges\n");
+ return -ENOSPC;
+ }
+
+ msm_dsi->dev = dev;
+
+ ret = msm_dsi_host_modeset_init(msm_dsi->host, dev);
+ if (ret) {
+ DRM_DEV_ERROR(dev->dev, "failed to modeset init host: %d\n", ret);
+ goto fail;
+ }
+
+ if (!msm_dsi_manager_validate_current_config(msm_dsi->id)) {
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ msm_dsi->encoder = encoder;
+
+ msm_dsi->bridge = msm_dsi_manager_bridge_init(msm_dsi->id);
+ if (IS_ERR(msm_dsi->bridge)) {
+ ret = PTR_ERR(msm_dsi->bridge);
+ DRM_DEV_ERROR(dev->dev, "failed to create dsi bridge: %d\n", ret);
+ msm_dsi->bridge = NULL;
+ goto fail;
+ }
+
+ /*
+ * check if the dsi encoder output is connected to a panel or an
+ * external bridge. We create a connector only if we're connected to a
+ * drm_panel device. When we're connected to an external bridge, we
+ * assume that the drm_bridge driver will create the connector itself.
+ */
+ ext_bridge = msm_dsi_host_get_bridge(msm_dsi->host);
+
+ if (ext_bridge)
+ msm_dsi->connector =
+ msm_dsi_manager_ext_bridge_init(msm_dsi->id);
+ else
+ msm_dsi->connector =
+ msm_dsi_manager_connector_init(msm_dsi->id);
+
+ if (IS_ERR(msm_dsi->connector)) {
+ ret = PTR_ERR(msm_dsi->connector);
+ DRM_DEV_ERROR(dev->dev,
+ "failed to create dsi connector: %d\n", ret);
+ msm_dsi->connector = NULL;
+ goto fail;
+ }
+
+ msm_dsi_manager_setup_encoder(msm_dsi->id);
+
+ priv->bridges[priv->num_bridges++] = msm_dsi->bridge;
+ priv->connectors[priv->num_connectors++] = msm_dsi->connector;
+
+ return 0;
+fail:
+ /* bridge/connector are normally destroyed by drm: */
+ if (msm_dsi->bridge) {
+ msm_dsi_manager_bridge_destroy(msm_dsi->bridge);
+ msm_dsi->bridge = NULL;
+ }
+
+ /* don't destroy connector if we didn't make it */
+ if (msm_dsi->connector && !msm_dsi->external_bridge)
+ msm_dsi->connector->funcs->destroy(msm_dsi->connector);
+
+ msm_dsi->connector = NULL;
+
+ return ret;
+}
+