@@ -1,6 +1,6 @@
config DRM_TEGRA
tristate "NVIDIA Tegra DRM"
- depends on DRM && OF && ARCH_TEGRA
+ depends on DRM && OF && ARCH_TEGRA && TEGRA_HOST1X
select DRM_KMS_HELPER
select DRM_GEM_CMA_HELPER
select DRM_KMS_CMA_HELPER
@@ -1,7 +1,7 @@
ccflags-y := -Iinclude/drm
ccflags-$(CONFIG_DRM_TEGRA_DEBUG) += -DDEBUG
-tegra-drm-y := drm.o fb.o dc.o host1x.o
+tegra-drm-y := drm.o fb.o dc.o
tegra-drm-y += output.o rgb.o hdmi.o
obj-$(CONFIG_DRM_TEGRA) += tegra-drm.o
@@ -673,10 +673,10 @@ static int tegra_dc_debugfs_exit(struct tegra_dc *dc)
return 0;
}
-static int tegra_dc_drm_init(struct host1x_client *client,
+static int tegra_dc_drm_init(struct tegra_drm_client *client,
struct drm_device *drm)
{
- struct tegra_dc *dc = host1x_client_to_dc(client);
+ struct tegra_dc *dc = tegra_drm_client_to_dc(client);
int err;
dc->pipe = drm->mode_config.num_crtc;
@@ -708,9 +708,9 @@ static int tegra_dc_drm_init(struct host1x_client *client,
return 0;
}
-static int tegra_dc_drm_exit(struct host1x_client *client)
+static int tegra_dc_drm_exit(struct tegra_drm_client *client)
{
- struct tegra_dc *dc = host1x_client_to_dc(client);
+ struct tegra_dc *dc = tegra_drm_client_to_dc(client);
int err;
devm_free_irq(dc->dev, dc->irq, dc);
@@ -730,17 +730,17 @@ static int tegra_dc_drm_exit(struct host1x_client *client)
return 0;
}
-static const struct host1x_client_ops dc_client_ops = {
+static const struct tegra_drm_client_ops dc_client_ops = {
.drm_init = tegra_dc_drm_init,
.drm_exit = tegra_dc_drm_exit,
};
static int tegra_dc_probe(struct platform_device *pdev)
{
- struct host1x *host1x = dev_get_drvdata(pdev->dev.parent);
struct resource *regs;
struct tegra_dc *dc;
int err;
+ struct tegradrm *tegradrm = platform_get_drvdata(pdev);
dc = devm_kzalloc(&pdev->dev, sizeof(*dc), GFP_KERNEL);
if (!dc)
@@ -780,6 +780,7 @@ static int tegra_dc_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&dc->client.list);
dc->client.ops = &dc_client_ops;
dc->client.dev = &pdev->dev;
+ dc->client.tegradrm = tegradrm;
err = tegra_dc_rgb_probe(dc);
if (err < 0 && err != -ENODEV) {
@@ -787,9 +788,9 @@ static int tegra_dc_probe(struct platform_device *pdev)
return err;
}
- err = host1x_register_client(host1x, &dc->client);
+ err = tegra_drm_register_client(tegradrm, &dc->client);
if (err < 0) {
- dev_err(&pdev->dev, "failed to register host1x client: %d\n",
+ dev_err(&pdev->dev, "failed to register tegra drm client: %d\n",
err);
return err;
}
@@ -801,13 +802,13 @@ static int tegra_dc_probe(struct platform_device *pdev)
static int tegra_dc_remove(struct platform_device *pdev)
{
- struct host1x *host1x = dev_get_drvdata(pdev->dev.parent);
struct tegra_dc *dc = platform_get_drvdata(pdev);
int err;
- err = host1x_unregister_client(host1x, &dc->client);
+ err = tegra_drm_unregister_client(dc->client.tegradrm,
+ &dc->client);
if (err < 0) {
- dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
+ dev_err(&pdev->dev, "failed to unregister tegra_drm client: %d\n",
err);
return err;
}
@@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
+#include <linux/host1x.h>
#include <mach/clk.h>
#include <linux/dma-mapping.h>
@@ -24,21 +25,142 @@
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0
+struct tegra_drm_client_entry {
+ struct tegra_drm_client *client;
+ struct device_node *np;
+ struct list_head list;
+};
+
+static int tegra_drm_add_client(struct device *dev, void *data)
+{
+ static const char * const compat[] = {
+ "nvidia,tegra20-dc",
+ "nvidia,tegra20-hdmi",
+ "nvidia,tegra30-dc",
+ "nvidia,tegra30-hdmi",
+ };
+ struct tegradrm *tegradrm = data;
+ struct tegra_drm_client_entry *client;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(compat); i++) {
+ if (of_device_is_compatible(dev->of_node, compat[i]) &&
+ of_device_is_available(dev->of_node)) {
+ client = kzalloc(sizeof(*client), GFP_KERNEL);
+ if (!client)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&client->list);
+ client->np = of_node_get(dev->of_node);
+
+ list_add_tail(&client->list, &tegradrm->drm_clients);
+ dev_set_drvdata(dev, tegradrm);
+ }
+ }
+
+ return 0;
+}
+
+static int tegra_drm_parse_dt(struct tegradrm *tegradrm)
+{
+ int err;
+ struct device *dev;
+
+ /* host1x is parent of all devices */
+ dev = bus_find_device_by_name(&platform_bus_type, NULL, "host1x");
+ if (!dev)
+ return -ENODEV;
+
+ /* find devices that are available and add them into the 'required'
+ * list */
+ err = device_for_each_child(dev, tegradrm, tegra_drm_add_client);
+
+ return err;
+}
+
+int tegra_drm_register_client(struct tegradrm *tegradrm,
+ struct tegra_drm_client *client)
+{
+ struct tegra_drm_client_entry *drm, *tmp;
+ int err;
+
+ mutex_lock(&tegradrm->clients_lock);
+ list_add_tail(&client->list, &tegradrm->clients);
+ mutex_unlock(&tegradrm->clients_lock);
+
+ /* remove this device from 'required' list */
+ list_for_each_entry_safe(drm, tmp, &tegradrm->drm_clients, list)
+ if (drm->np == client->dev->of_node)
+ list_del(&drm->list);
+
+ /* if all required devices are found, register drm device */
+ if (list_empty(&tegradrm->drm_clients)) {
+ struct platform_device *pdev =
+ to_platform_device(tegradrm->dev);
+ err = drm_platform_init(&tegra_drm_driver, pdev);
+ if (err < 0) {
+ dev_err(client->dev, "drm_platform_init(): %d\n", err);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+int tegra_drm_unregister_client(struct tegradrm *tegradrm,
+ struct tegra_drm_client *client)
+{
+ struct tegra_drm_client *tmp;
+
+ list_for_each_entry_safe(client, tmp, &tegradrm->clients, list) {
+ if (client->ops && client->ops->drm_exit) {
+ int err = client->ops->drm_exit(client);
+ if (err < 0) {
+ dev_err(client->dev,
+ "DRM cleanup failed for %s: %d\n",
+ dev_name(client->dev), err);
+ return err;
+ }
+ }
+
+ /* if this is the last device, unregister the drm driver */
+ if (client->list.next == &tegradrm->clients) {
+ struct platform_device *pdev =
+ to_platform_device(tegradrm->dev);
+ drm_platform_exit(&tegra_drm_driver, pdev);
+ }
+
+ list_del_init(&client->list);
+ }
+
+ return 0;
+}
+
static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
{
- struct device *dev = drm->dev;
- struct host1x *host1x;
+ struct tegra_drm_client *client;
int err;
+ struct tegradrm *tegradrm = dev_get_drvdata(drm->dev);
- host1x = dev_get_drvdata(dev);
- drm->dev_private = host1x;
- host1x->drm = drm;
+ drm->dev_private = tegradrm;
drm_mode_config_init(drm);
- err = host1x_drm_init(host1x, drm);
- if (err < 0)
- return err;
+ mutex_lock(&tegradrm->clients_lock);
+
+ list_for_each_entry(client, &tegradrm->clients, list) {
+ if (client->ops && client->ops->drm_init) {
+ err = client->ops->drm_init(client, drm);
+ if (err < 0) {
+ dev_dbg(drm->dev, "drm_init() failed for %s: %d\n",
+ dev_name(client->dev), err);
+ mutex_unlock(&tegradrm->clients_lock);
+ return err;
+ }
+ }
+ }
+
+ mutex_unlock(&tegradrm->clients_lock);
err = tegra_drm_fb_init(drm);
if (err < 0)
@@ -64,13 +186,97 @@ static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
return 0;
}
+static void tegra_drm_close(struct drm_device *drm, struct drm_file *filp)
+{
+
+}
+
static void tegra_drm_lastclose(struct drm_device *drm)
{
- struct host1x *host1x = drm->dev_private;
+ tegra_drm_fb_restore(drm);
+}
+
+static int tegra_drm_probe(struct platform_device *pdev)
+{
+ int err;
+ struct tegradrm *tegradrm;
+
+ tegradrm = devm_kzalloc(&pdev->dev, sizeof(*tegradrm), GFP_KERNEL);
+ if (!tegradrm)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, tegradrm);
+ tegradrm->dev = &pdev->dev;
- drm_fbdev_cma_restore_mode(host1x->fbdev);
+ mutex_init(&tegradrm->drm_clients_lock);
+ INIT_LIST_HEAD(&tegradrm->drm_clients);
+ mutex_init(&tegradrm->clients_lock);
+ INIT_LIST_HEAD(&tegradrm->clients);
+
+ err = tegra_drm_parse_dt(tegradrm);
+ if (err < 0) {
+ pr_err("failed to parse DT: %d\n", err);
+ return err;
+ }
+
+ return 0;
}
+static int tegra_drm_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static struct platform_driver tegra_drm_platform_driver = {
+ .driver = {
+ .name = "tegradrm",
+ .owner = THIS_MODULE,
+ },
+ .probe = tegra_drm_probe,
+ .remove = tegra_drm_remove,
+};
+
+static int __init tegra_drm_init(void)
+{
+ int err;
+ struct platform_device *drm_device;
+
+ drm_device = platform_device_register_simple("tegradrm", -1, NULL, 0);
+ if (!drm_device)
+ return -ENOMEM;
+ dma_set_coherent_mask(&drm_device->dev, DMA_BIT_MASK(32));
+
+ err = platform_driver_register(&tegra_drm_platform_driver);
+ if (err < 0)
+ goto unregister_tegra_dev;
+
+ err = platform_driver_register(&tegra_dc_driver);
+ if (err < 0)
+ goto unregister_tegra_drv;
+
+ err = platform_driver_register(&tegra_hdmi_driver);
+ if (err < 0)
+ goto unregister_dc;
+ return 0;
+
+unregister_dc:
+ platform_driver_unregister(&tegra_dc_driver);
+unregister_tegra_drv:
+ platform_driver_unregister(&tegra_drm_platform_driver);
+unregister_tegra_dev:
+ platform_device_unregister(drm_device);
+ return err;
+}
+module_init(tegra_drm_init);
+
+static void __exit tegra_drm_exit(void)
+{
+ platform_driver_unregister(&tegra_hdmi_driver);
+ platform_driver_unregister(&tegra_dc_driver);
+ platform_driver_unregister(&tegra_drm_platform_driver);
+}
+module_exit(tegra_drm_exit);
+
static struct drm_ioctl_desc tegra_drm_ioctls[] = {
};
@@ -94,6 +300,7 @@ struct drm_driver tegra_drm_driver = {
.load = tegra_drm_load,
.unload = tegra_drm_unload,
.open = tegra_drm_open,
+ .preclose = tegra_drm_close,
.lastclose = tegra_drm_lastclose,
.gem_free_object = drm_gem_cma_free_object,
@@ -113,3 +320,7 @@ struct drm_driver tegra_drm_driver = {
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
};
+
+MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
+MODULE_DESCRIPTION("NVIDIA Tegra DRM driver");
+MODULE_LICENSE("GPL");
@@ -17,6 +17,7 @@
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fixed.h>
+#include <drm/tegra_drm.h>
struct tegra_framebuffer {
struct drm_framebuffer base;
@@ -28,17 +29,11 @@ static inline struct tegra_framebuffer *to_tegra_fb(struct drm_framebuffer *fb)
return container_of(fb, struct tegra_framebuffer, base);
}
-struct host1x {
- struct drm_device *drm;
+struct tegradrm {
struct device *dev;
- void __iomem *regs;
- struct clk *clk;
- int syncpt;
- int irq;
struct mutex drm_clients_lock;
struct list_head drm_clients;
- struct list_head drm_active;
struct mutex clients_lock;
struct list_head clients;
@@ -47,36 +42,33 @@ struct host1x {
struct tegra_framebuffer fb;
};
-struct host1x_client;
+struct tegra_drm_client;
-struct host1x_client_ops {
- int (*drm_init)(struct host1x_client *client, struct drm_device *drm);
- int (*drm_exit)(struct host1x_client *client);
+struct tegra_drm_client_ops {
+ int (*drm_init)(struct tegra_drm_client *, struct drm_device *);
+ int (*drm_exit)(struct tegra_drm_client *);
};
-struct host1x_client {
- struct host1x *host1x;
+struct tegra_drm_client {
+ struct tegradrm *tegradrm;
struct device *dev;
- const struct host1x_client_ops *ops;
+ const struct tegra_drm_client_ops *ops;
struct list_head list;
-};
-extern int host1x_drm_init(struct host1x *host1x, struct drm_device *drm);
-extern int host1x_drm_exit(struct host1x *host1x);
+};
-extern int host1x_register_client(struct host1x *host1x,
- struct host1x_client *client);
-extern int host1x_unregister_client(struct host1x *host1x,
- struct host1x_client *client);
+extern int tegra_drm_register_client(struct tegradrm *tegradrm,
+ struct tegra_drm_client *client);
+extern int tegra_drm_unregister_client(struct tegradrm *tegradrm,
+ struct tegra_drm_client *client);
struct tegra_output;
struct tegra_dc {
- struct host1x_client client;
+ struct tegra_drm_client client;
- struct host1x *host1x;
struct device *dev;
struct drm_crtc base;
@@ -96,7 +88,8 @@ struct tegra_dc {
struct dentry *debugfs;
};
-static inline struct tegra_dc *host1x_client_to_dc(struct host1x_client *client)
+static inline struct tegra_dc *tegra_drm_client_to_dc(
+ struct tegra_drm_client *client)
{
return container_of(client, struct tegra_dc, client);
}
@@ -225,8 +218,8 @@ extern struct vm_operations_struct tegra_gem_vm_ops;
/* from fb.c */
extern int tegra_drm_fb_init(struct drm_device *drm);
extern void tegra_drm_fb_exit(struct drm_device *drm);
+extern void tegra_drm_fb_restore(struct drm_device *drm);
-extern struct platform_driver tegra_host1x_driver;
extern struct platform_driver tegra_hdmi_driver;
extern struct platform_driver tegra_dc_driver;
extern struct drm_driver tegra_drm_driver;
@@ -11,9 +11,9 @@
static void tegra_drm_fb_output_poll_changed(struct drm_device *drm)
{
- struct host1x *host1x = drm->dev_private;
+ struct tegradrm *tegradrm = drm->dev_private;
- drm_fbdev_cma_hotplug_event(host1x->fbdev);
+ drm_fbdev_cma_hotplug_event(tegradrm->fbdev);
}
static const struct drm_mode_config_funcs tegra_drm_mode_funcs = {
@@ -23,7 +23,7 @@ static const struct drm_mode_config_funcs tegra_drm_mode_funcs = {
int tegra_drm_fb_init(struct drm_device *drm)
{
- struct host1x *host1x = drm->dev_private;
+ struct tegradrm *tegradrm = drm->dev_private;
struct drm_fbdev_cma *fbdev;
drm->mode_config.min_width = 0;
@@ -43,14 +43,19 @@ int tegra_drm_fb_init(struct drm_device *drm)
drm_fbdev_cma_restore_mode(fbdev);
#endif
- host1x->fbdev = fbdev;
+ tegradrm->fbdev = fbdev;
return 0;
}
void tegra_drm_fb_exit(struct drm_device *drm)
{
- struct host1x *host1x = drm->dev_private;
+ struct tegradrm *tegradrm = drm->dev_private;
+ drm_fbdev_cma_fini(tegradrm->fbdev);
+}
- drm_fbdev_cma_fini(host1x->fbdev);
+void tegra_drm_fb_restore(struct drm_device *drm)
+{
+ struct tegradrm *tegradrm = drm->dev_private;
+ drm_fbdev_cma_restore_mode(tegradrm->fbdev);
}
@@ -22,7 +22,7 @@
#include "dc.h"
struct tegra_hdmi {
- struct host1x_client client;
+ struct tegra_drm_client client;
struct tegra_output output;
struct device *dev;
@@ -46,7 +46,7 @@ struct tegra_hdmi {
};
static inline struct tegra_hdmi *
-host1x_client_to_hdmi(struct host1x_client *client)
+tegra_drm_client_to_hdmi(struct tegra_drm_client *client)
{
return container_of(client, struct tegra_hdmi, client);
}
@@ -1152,10 +1152,10 @@ static int tegra_hdmi_debugfs_exit(struct tegra_hdmi *hdmi)
return 0;
}
-static int tegra_hdmi_drm_init(struct host1x_client *client,
+static int tegra_hdmi_drm_init(struct tegra_drm_client *client,
struct drm_device *drm)
{
- struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+ struct tegra_hdmi *hdmi = tegra_drm_client_to_hdmi(client);
int err;
hdmi->output.type = TEGRA_OUTPUT_HDMI;
@@ -1177,9 +1177,9 @@ static int tegra_hdmi_drm_init(struct host1x_client *client,
return 0;
}
-static int tegra_hdmi_drm_exit(struct host1x_client *client)
+static int tegra_hdmi_drm_exit(struct tegra_drm_client *client)
{
- struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+ struct tegra_hdmi *hdmi = tegra_drm_client_to_hdmi(client);
int err;
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
@@ -1204,17 +1204,17 @@ static int tegra_hdmi_drm_exit(struct host1x_client *client)
return 0;
}
-static const struct host1x_client_ops hdmi_client_ops = {
+static const struct tegra_drm_client_ops hdmi_client_ops = {
.drm_init = tegra_hdmi_drm_init,
.drm_exit = tegra_hdmi_drm_exit,
};
static int tegra_hdmi_probe(struct platform_device *pdev)
{
- struct host1x *host1x = dev_get_drvdata(pdev->dev.parent);
struct tegra_hdmi *hdmi;
struct resource *regs;
int err;
+ struct tegradrm *tegradrm = platform_get_drvdata(pdev);
hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
if (!hdmi)
@@ -1285,10 +1285,11 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
hdmi->client.ops = &hdmi_client_ops;
INIT_LIST_HEAD(&hdmi->client.list);
hdmi->client.dev = &pdev->dev;
+ hdmi->client.tegradrm = tegradrm;
- err = host1x_register_client(host1x, &hdmi->client);
+ err = tegra_drm_register_client(tegradrm, &hdmi->client);
if (err < 0) {
- dev_err(&pdev->dev, "failed to register host1x client: %d\n",
+ dev_err(&pdev->dev, "failed to register tegra drm client: %d\n",
err);
return err;
}
@@ -1300,13 +1301,13 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
static int tegra_hdmi_remove(struct platform_device *pdev)
{
- struct host1x *host1x = dev_get_drvdata(pdev->dev.parent);
struct tegra_hdmi *hdmi = platform_get_drvdata(pdev);
int err;
- err = host1x_unregister_client(host1x, &hdmi->client);
+ err = tegra_drm_unregister_client(hdmi->client.tegradrm,
+ &hdmi->client);
if (err < 0) {
- dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
+ dev_err(&pdev->dev, "failed to unregister tegra drm client: %d\n",
err);
return err;
}
deleted file mode 100644
@@ -1,325 +0,0 @@
-/*
- * Copyright (C) 2012 Avionic Design GmbH
- * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-
-#include "drm.h"
-
-struct host1x_drm_client {
- struct host1x_client *client;
- struct device_node *np;
- struct list_head list;
-};
-
-static int host1x_add_drm_client(struct host1x *host1x, struct device_node *np)
-{
- struct host1x_drm_client *client;
-
- client = kzalloc(sizeof(*client), GFP_KERNEL);
- if (!client)
- return -ENOMEM;
-
- INIT_LIST_HEAD(&client->list);
- client->np = of_node_get(np);
-
- list_add_tail(&client->list, &host1x->drm_clients);
-
- return 0;
-}
-
-static int host1x_activate_drm_client(struct host1x *host1x,
- struct host1x_drm_client *drm,
- struct host1x_client *client)
-{
- mutex_lock(&host1x->drm_clients_lock);
- list_del_init(&drm->list);
- list_add_tail(&drm->list, &host1x->drm_active);
- drm->client = client;
- mutex_unlock(&host1x->drm_clients_lock);
-
- return 0;
-}
-
-static int host1x_remove_drm_client(struct host1x *host1x,
- struct host1x_drm_client *client)
-{
- mutex_lock(&host1x->drm_clients_lock);
- list_del_init(&client->list);
- mutex_unlock(&host1x->drm_clients_lock);
-
- of_node_put(client->np);
- kfree(client);
-
- return 0;
-}
-
-static int host1x_parse_dt(struct host1x *host1x)
-{
- static const char * const compat[] = {
- "nvidia,tegra20-dc",
- "nvidia,tegra20-hdmi",
- "nvidia,tegra30-dc",
- "nvidia,tegra30-hdmi",
- };
- unsigned int i;
- int err;
-
- for (i = 0; i < ARRAY_SIZE(compat); i++) {
- struct device_node *np;
-
- for_each_child_of_node(host1x->dev->of_node, np) {
- if (of_device_is_compatible(np, compat[i]) &&
- of_device_is_available(np)) {
- err = host1x_add_drm_client(host1x, np);
- if (err < 0)
- return err;
- }
- }
- }
-
- return 0;
-}
-
-static int tegra_host1x_probe(struct platform_device *pdev)
-{
- struct host1x *host1x;
- struct resource *regs;
- int err;
-
- host1x = devm_kzalloc(&pdev->dev, sizeof(*host1x), GFP_KERNEL);
- if (!host1x)
- return -ENOMEM;
-
- mutex_init(&host1x->drm_clients_lock);
- INIT_LIST_HEAD(&host1x->drm_clients);
- INIT_LIST_HEAD(&host1x->drm_active);
- mutex_init(&host1x->clients_lock);
- INIT_LIST_HEAD(&host1x->clients);
- host1x->dev = &pdev->dev;
-
- err = host1x_parse_dt(host1x);
- if (err < 0) {
- dev_err(&pdev->dev, "failed to parse DT: %d\n", err);
- return err;
- }
-
- host1x->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(host1x->clk))
- return PTR_ERR(host1x->clk);
-
- err = clk_prepare_enable(host1x->clk);
- if (err < 0)
- return err;
-
- regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!regs) {
- err = -ENXIO;
- goto err;
- }
-
- err = platform_get_irq(pdev, 0);
- if (err < 0)
- goto err;
-
- host1x->syncpt = err;
-
- err = platform_get_irq(pdev, 1);
- if (err < 0)
- goto err;
-
- host1x->irq = err;
-
- host1x->regs = devm_request_and_ioremap(&pdev->dev, regs);
- if (!host1x->regs) {
- err = -EADDRNOTAVAIL;
- goto err;
- }
-
- platform_set_drvdata(pdev, host1x);
-
- return 0;
-
-err:
- clk_disable_unprepare(host1x->clk);
- return err;
-}
-
-static int tegra_host1x_remove(struct platform_device *pdev)
-{
- struct host1x *host1x = platform_get_drvdata(pdev);
-
- clk_disable_unprepare(host1x->clk);
-
- return 0;
-}
-
-int host1x_drm_init(struct host1x *host1x, struct drm_device *drm)
-{
- struct host1x_client *client;
-
- mutex_lock(&host1x->clients_lock);
-
- list_for_each_entry(client, &host1x->clients, list) {
- if (client->ops && client->ops->drm_init) {
- int err = client->ops->drm_init(client, drm);
- if (err < 0) {
- dev_err(host1x->dev,
- "DRM setup failed for %s: %d\n",
- dev_name(client->dev), err);
- return err;
- }
- }
- }
-
- mutex_unlock(&host1x->clients_lock);
-
- return 0;
-}
-
-int host1x_drm_exit(struct host1x *host1x)
-{
- struct platform_device *pdev = to_platform_device(host1x->dev);
- struct host1x_client *client;
-
- if (!host1x->drm)
- return 0;
-
- mutex_lock(&host1x->clients_lock);
-
- list_for_each_entry_reverse(client, &host1x->clients, list) {
- if (client->ops && client->ops->drm_exit) {
- int err = client->ops->drm_exit(client);
- if (err < 0) {
- dev_err(host1x->dev,
- "DRM cleanup failed for %s: %d\n",
- dev_name(client->dev), err);
- return err;
- }
- }
- }
-
- mutex_unlock(&host1x->clients_lock);
-
- drm_platform_exit(&tegra_drm_driver, pdev);
- host1x->drm = NULL;
-
- return 0;
-}
-
-int host1x_register_client(struct host1x *host1x, struct host1x_client *client)
-{
- struct host1x_drm_client *drm, *tmp;
- int err;
-
- mutex_lock(&host1x->clients_lock);
- list_add_tail(&client->list, &host1x->clients);
- mutex_unlock(&host1x->clients_lock);
-
- list_for_each_entry_safe(drm, tmp, &host1x->drm_clients, list)
- if (drm->np == client->dev->of_node)
- host1x_activate_drm_client(host1x, drm, client);
-
- if (list_empty(&host1x->drm_clients)) {
- struct platform_device *pdev = to_platform_device(host1x->dev);
-
- err = drm_platform_init(&tegra_drm_driver, pdev);
- if (err < 0) {
- dev_err(host1x->dev, "drm_platform_init(): %d\n", err);
- return err;
- }
- }
-
- return 0;
-}
-
-int host1x_unregister_client(struct host1x *host1x,
- struct host1x_client *client)
-{
- struct host1x_drm_client *drm, *tmp;
- int err;
-
- list_for_each_entry_safe(drm, tmp, &host1x->drm_active, list) {
- if (drm->client == client) {
- err = host1x_drm_exit(host1x);
- if (err < 0) {
- dev_err(host1x->dev, "host1x_drm_exit(): %d\n",
- err);
- return err;
- }
-
- host1x_remove_drm_client(host1x, drm);
- break;
- }
- }
-
- mutex_lock(&host1x->clients_lock);
- list_del_init(&client->list);
- mutex_unlock(&host1x->clients_lock);
-
- return 0;
-}
-
-static struct of_device_id tegra_host1x_of_match[] = {
- { .compatible = "nvidia,tegra30-host1x", },
- { .compatible = "nvidia,tegra20-host1x", },
- { },
-};
-MODULE_DEVICE_TABLE(of, tegra_host1x_of_match);
-
-struct platform_driver tegra_host1x_driver = {
- .driver = {
- .name = "tegra-host1x",
- .owner = THIS_MODULE,
- .of_match_table = tegra_host1x_of_match,
- },
- .probe = tegra_host1x_probe,
- .remove = tegra_host1x_remove,
-};
-
-static int __init tegra_host1x_init(void)
-{
- int err;
-
- err = platform_driver_register(&tegra_host1x_driver);
- if (err < 0)
- return err;
-
- err = platform_driver_register(&tegra_dc_driver);
- if (err < 0)
- goto unregister_host1x;
-
- err = platform_driver_register(&tegra_hdmi_driver);
- if (err < 0)
- goto unregister_dc;
-
- return 0;
-
-unregister_dc:
- platform_driver_unregister(&tegra_dc_driver);
-unregister_host1x:
- platform_driver_unregister(&tegra_host1x_driver);
- return err;
-}
-module_init(tegra_host1x_init);
-
-static void __exit tegra_host1x_exit(void)
-{
- platform_driver_unregister(&tegra_hdmi_driver);
- platform_driver_unregister(&tegra_dc_driver);
- platform_driver_unregister(&tegra_host1x_driver);
-}
-module_exit(tegra_host1x_exit);
-
-MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
-MODULE_DESCRIPTION("NVIDIA Tegra DRM driver");
-MODULE_LICENSE("GPL");
new file mode 100644
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TEGRA_DRM_H_
+#define _TEGRA_DRM_H_
+
+#endif