video: tegra: host: refactor for upstreaming

- split the nvhost clients into their own directories
- each client is a nvhost_device and nvhost_driver
- all the code related to host1x control node is centralized
at single place in dev.c
- all the code related to host1x modules nodes is centralized
at single place in bus_client.c
- update the copyright notice & year for new files

Bug 871237

Change-Id: Ief85064699e35ad02b48a7e54496928d7f085af4
Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Reviewed-on: http://git-master/r/83491
Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com>

2 files changed, 89 insertions, 0 deletions

diff --git a/drivers/video/tegra/host/dsi/Makefile b/drivers/video/tegra/host/dsi/Makefile
new file mode 100644
index 000000000000..eb94d3ec4928
--- /dev/null
+++ b/drivers/video/tegra/host/dsi/Makefile
@@ -0,0 +1,7 @@
+GCOV_PROFILE := y
+EXTRA_CFLAGS += -Idrivers/video/tegra/host
+
+nvhost-dsi-objs  = \
+		dsi.o
+
+obj-$(CONFIG_TEGRA_GRHOST) += nvhost-dsi.o
diff --git a/drivers/video/tegra/host/dsi/dsi.c b/drivers/video/tegra/host/dsi/dsi.c
new file mode 100644
index 000000000000..0e49f591574d
--- /dev/null
+++ b/drivers/video/tegra/host/dsi/dsi.c
@@ -0,0 +1,82 @@
+/*
+ * drivers/video/tegra/host/dsi/dsi.c
+ *
+ * Tegra Graphics DSI
+ *
+ * Copyright (c) 2012, 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/>.
+ */
+
+#include "dev.h"
+#include "bus_client.h"
+
+static int dsi_probe(struct nvhost_device *dev)
+{
+	return nvhost_client_device_init(dev);
+}
+
+static int __exit dsi_remove(struct nvhost_device *dev)
+{
+	/* Add clean-up */
+	return 0;
+}
+
+static int dsi_suspend(struct nvhost_device *dev, pm_message_t state)
+{
+	return nvhost_client_device_suspend(dev);
+}
+
+static int dsi_resume(struct nvhost_device *dev)
+{
+	dev_info(&dev->dev, "resuming\n");
+	return 0;
+}
+
+struct nvhost_device *dsi_device;
+
+static struct nvhost_driver dsi_driver = {
+	.probe = dsi_probe,
+	.remove = __exit_p(dsi_remove),
+#ifdef CONFIG_PM
+	.suspend = dsi_suspend,
+	.resume = dsi_resume,
+#endif
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "dsi",
+	}
+};
+
+static int __init dsi_init(void)
+{
+	int err;
+
+	dsi_device = nvhost_get_device("dsi");
+	if (!dsi_device)
+		return -ENXIO;
+
+	err = nvhost_device_register(dsi_device);
+	if (err)
+		return err;
+
+	return nvhost_driver_register(&dsi_driver);
+}
+
+static void __exit dsi_exit(void)
+{
+	nvhost_driver_unregister(&dsi_driver);
+}
+
+module_init(dsi_init);
+module_exit(dsi_exit);