Remove second host1x driver, and bind tegra-drm to the new host1x driver. The logic to parse device tree and track clients is moved to drm.c.
Signed-off-by: Arto Merilainen amerilainen@nvidia.com Signed-off-by: Terje Bergstrom tbergstrom@nvidia.com --- drivers/gpu/host1x/Makefile | 2 +- drivers/gpu/host1x/dev.c | 58 ++++++- drivers/gpu/host1x/dev.h | 6 + drivers/gpu/host1x/drm/Kconfig | 2 +- drivers/gpu/host1x/drm/dc.c | 5 +- drivers/gpu/host1x/drm/drm.c | 217 +++++++++++++++++++++++- drivers/gpu/host1x/drm/drm.h | 3 - drivers/gpu/host1x/drm/hdmi.c | 5 +- drivers/gpu/host1x/drm/host1x.c | 329 ------------------------------------ drivers/gpu/host1x/host1x_client.h | 35 ++++ 10 files changed, 318 insertions(+), 344 deletions(-) delete mode 100644 drivers/gpu/host1x/drm/host1x.c create mode 100644 drivers/gpu/host1x/host1x_client.h
diff --git a/drivers/gpu/host1x/Makefile b/drivers/gpu/host1x/Makefile index 4761e8a..9a6fc76 100644 --- a/drivers/gpu/host1x/Makefile +++ b/drivers/gpu/host1x/Makefile @@ -13,6 +13,6 @@ host1x-y = \ ccflags-y += -Iinclude/drm ccflags-$(CONFIG_DRM_TEGRA_DEBUG) += -DDEBUG
-host1x-$(CONFIG_DRM_TEGRA) += drm/drm.o drm/fb.o drm/dc.o drm/host1x.o +host1x-$(CONFIG_DRM_TEGRA) += drm/drm.o drm/fb.o drm/dc.o host1x-$(CONFIG_DRM_TEGRA) += drm/output.o drm/rgb.o drm/hdmi.o obj-$(CONFIG_TEGRA_HOST1X) += host1x.o diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index d7c6e3e..6af8081 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -32,6 +32,19 @@ #include "channel.h" #include "debug.h" #include "hw/host1x01.h" +#include "host1x_client.h" + +void host1x_set_drm_data(struct device *dev, void *data) +{ + struct host1x *host1x = dev_get_drvdata(dev); + host1x->drm_data = data; +} + +void *host1x_get_drm_data(struct device *dev) +{ + struct host1x *host1x = dev_get_drvdata(dev); + return host1x->drm_data; +}
void host1x_sync_writel(struct host1x *host1x, u32 v, u32 r) { @@ -154,6 +167,8 @@ static int host1x_probe(struct platform_device *pdev)
host1x_debug_init(host);
+ host1x_drm_alloc(pdev); + return 0;
fail_deinit_syncpt: @@ -170,7 +185,7 @@ static int __exit host1x_remove(struct platform_device *pdev) return 0; }
-static struct platform_driver platform_driver = { +static struct platform_driver tegra_host1x_driver = { .probe = host1x_probe, .remove = __exit_p(host1x_remove), .driver = { @@ -180,8 +195,47 @@ static struct platform_driver platform_driver = { }, };
-module_platform_driver(platform_driver); +static int __init tegra_host1x_init(void) +{ + int err; + + err = platform_driver_register(&tegra_host1x_driver); + if (err < 0) + return err; + +#ifdef CONFIG_DRM_TEGRA + 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; +#endif + + return 0; + +#ifdef CONFIG_DRM_TEGRA +unregister_dc: + platform_driver_unregister(&tegra_dc_driver); +unregister_host1x: + platform_driver_unregister(&tegra_host1x_driver); + return err; +#endif +} +module_init(tegra_host1x_init); + +static void __exit tegra_host1x_exit(void) +{ +#ifdef CONFIG_DRM_TEGRA + platform_driver_unregister(&tegra_hdmi_driver); + platform_driver_unregister(&tegra_dc_driver); +#endif + platform_driver_unregister(&tegra_host1x_driver); +} +module_exit(tegra_host1x_exit);
+MODULE_AUTHOR("Thierry Reding thierry.reding@avionic-design.de"); MODULE_AUTHOR("Terje Bergstrom tbergstrom@nvidia.com"); MODULE_DESCRIPTION("Host1x driver for Tegra products"); MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/host1x/dev.h b/drivers/gpu/host1x/dev.h index 4a56233..ca2ba8a 100644 --- a/drivers/gpu/host1x/dev.h +++ b/drivers/gpu/host1x/dev.h @@ -124,6 +124,8 @@ struct host1x { unsigned int num_allocated_channels;
struct dentry *debugfs; + + void *drm_data; };
static inline struct host1x *host1x_get_host(struct device *dev) @@ -307,4 +309,8 @@ static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) host->debug_op->show_mlocks(host, o); }
+extern struct platform_driver tegra_hdmi_driver; +extern struct platform_driver tegra_dc_driver; +extern struct platform_driver tegra_gr2d_driver; + #endif diff --git a/drivers/gpu/host1x/drm/Kconfig b/drivers/gpu/host1x/drm/Kconfig index c92955d..8fb6545 100644 --- a/drivers/gpu/host1x/drm/Kconfig +++ b/drivers/gpu/host1x/drm/Kconfig @@ -1,5 +1,5 @@ config DRM_TEGRA - tristate "NVIDIA Tegra DRM" + bool "NVIDIA Tegra DRM" depends on DRM && OF && ARCH_TEGRA select DRM_KMS_HELPER select DRM_GEM_CMA_HELPER diff --git a/drivers/gpu/host1x/drm/dc.c b/drivers/gpu/host1x/drm/dc.c index d1f6609..29a79b6 100644 --- a/drivers/gpu/host1x/drm/dc.c +++ b/drivers/gpu/host1x/drm/dc.c @@ -16,6 +16,7 @@
#include "drm.h" #include "dc.h" +#include "host1x_client.h"
struct tegra_plane { struct drm_plane base; @@ -1097,7 +1098,7 @@ static const struct host1x_client_ops dc_client_ops = {
static int tegra_dc_probe(struct platform_device *pdev) { - struct host1x_drm *host1x = dev_get_drvdata(pdev->dev.parent); + struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent); struct resource *regs; struct tegra_dc *dc; int err; @@ -1160,7 +1161,7 @@ static int tegra_dc_probe(struct platform_device *pdev)
static int tegra_dc_remove(struct platform_device *pdev) { - struct host1x_drm *host1x = dev_get_drvdata(pdev->dev.parent); + struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent); struct tegra_dc *dc = platform_get_drvdata(pdev); int err;
diff --git a/drivers/gpu/host1x/drm/drm.c b/drivers/gpu/host1x/drm/drm.c index 6c59bcd..dbd4808 100644 --- a/drivers/gpu/host1x/drm/drm.c +++ b/drivers/gpu/host1x/drm/drm.c @@ -7,14 +7,14 @@ * published by the Free Software Foundation. */
+#include <asm/dma-iommu.h> #include <linux/module.h> #include <linux/of_address.h> #include <linux/of_platform.h> - #include <linux/dma-mapping.h> -#include <asm/dma-iommu.h>
#include "drm.h" +#include "host1x_client.h"
#define DRIVER_NAME "tegra" #define DRIVER_DESC "NVIDIA Tegra graphics" @@ -23,13 +23,222 @@ #define DRIVER_MINOR 0 #define DRIVER_PATCHLEVEL 0
+struct host1x_drm_client { + struct host1x_client *client; + struct device_node *np; + struct list_head list; +}; + +static int host1x_add_drm_client(struct host1x_drm *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_drm *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_drm *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_drm *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; +} + +int host1x_drm_alloc(struct platform_device *pdev) +{ + struct host1x_drm *host1x; + 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_set_drm_data(&pdev->dev, host1x); + + return 0; +} + +int host1x_drm_init(struct host1x_drm *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_drm *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_drm *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_drm *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 int tegra_drm_load(struct drm_device *drm, unsigned long flags) { - struct device *dev = drm->dev; struct host1x_drm *host1x; int err;
- host1x = dev_get_drvdata(dev); + host1x = host1x_get_drm_data(drm->dev); drm->dev_private = host1x; host1x->drm = drm;
diff --git a/drivers/gpu/host1x/drm/drm.h b/drivers/gpu/host1x/drm/drm.h index 7fedb6c..0b8738f 100644 --- a/drivers/gpu/host1x/drm/drm.h +++ b/drivers/gpu/host1x/drm/drm.h @@ -229,9 +229,6 @@ extern int tegra_output_exit(struct tegra_output *output); extern int tegra_drm_fb_init(struct drm_device *drm); extern void tegra_drm_fb_exit(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;
#endif /* HOST1X_DRM_H */ diff --git a/drivers/gpu/host1x/drm/hdmi.c b/drivers/gpu/host1x/drm/hdmi.c index f438f80..01097da 100644 --- a/drivers/gpu/host1x/drm/hdmi.c +++ b/drivers/gpu/host1x/drm/hdmi.c @@ -22,6 +22,7 @@ #include "hdmi.h" #include "drm.h" #include "dc.h" +#include "host1x_client.h"
struct tegra_hdmi { struct host1x_client client; @@ -1189,7 +1190,7 @@ static const struct host1x_client_ops hdmi_client_ops = {
static int tegra_hdmi_probe(struct platform_device *pdev) { - struct host1x_drm *host1x = dev_get_drvdata(pdev->dev.parent); + struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent); struct tegra_hdmi *hdmi; struct resource *regs; int err; @@ -1278,7 +1279,7 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
static int tegra_hdmi_remove(struct platform_device *pdev) { - struct host1x_drm *host1x = dev_get_drvdata(pdev->dev.parent); + struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent); struct tegra_hdmi *hdmi = platform_get_drvdata(pdev); int err;
diff --git a/drivers/gpu/host1x/drm/host1x.c b/drivers/gpu/host1x/drm/host1x.c deleted file mode 100644 index c3d8ee5..0000000 --- a/drivers/gpu/host1x/drm/host1x.c +++ /dev/null @@ -1,329 +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_drm *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_drm *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_drm *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_drm *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_drm *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_ioremap_resource(&pdev->dev, regs); - if (IS_ERR(host1x->regs)) { - err = PTR_ERR(host1x->regs); - 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_drm *host1x = platform_get_drvdata(pdev); - - clk_disable_unprepare(host1x->clk); - - return 0; -} - -int host1x_drm_init(struct host1x_drm *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_drm *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_drm *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; - } - } - - client->host1x = host1x; - - return 0; -} - -int host1x_unregister_client(struct host1x_drm *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"); diff --git a/drivers/gpu/host1x/host1x_client.h b/drivers/gpu/host1x/host1x_client.h new file mode 100644 index 0000000..9b85f10 --- /dev/null +++ b/drivers/gpu/host1x/host1x_client.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2013, NVIDIA Corporation. + * + * 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 HOST1X_CLIENT_H +#define HOST1X_CLIENT_H + +struct device; +struct platform_device; + +#ifdef CONFIG_DRM_TEGRA +int host1x_drm_alloc(struct platform_device *pdev); +#else +static inline int host1x_drm_alloc(struct platform_device *pdev) +{ + return 0; +} +#endif + +void host1x_set_drm_data(struct device *dev, void *data); +void *host1x_get_drm_data(struct device *dev); + +#endif