Am Freitag, den 21.12.2012, 13:39 +0200 schrieb Terje Bergstrom:
Register a dummy device for tegradrm, and provide a getter to access the device.
Signed-off-by: Terje Bergstrom tbergstrom@nvidia.com
[...]
diff --git a/drivers/gpu/host1x/drm.c b/drivers/gpu/host1x/drm.c new file mode 100644 index 0000000..eaaaeed --- /dev/null +++ b/drivers/gpu/host1x/drm.c @@ -0,0 +1,51 @@ +/*
- Tegra host1x driver DRM dummy device
- 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 <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/module.h> +#include "drm.h" +#include "dev.h"
+int host1x_register_drm_device(struct host1x *host1x) +{
- 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));
This might not be necessary once we move the allocator to host1x.
- host1x->drm_device = drm_device;
- return 0;
+} +EXPORT_SYMBOL(host1x_register_drm_device);
+void host1x_unregister_drm_device(struct host1x *host1x) +{
- if (host1x->drm_device)
platform_device_unregister(host1x->drm_device);+} +EXPORT_SYMBOL(host1x_unregister_drm_device);
+struct platform_device *host1x_drm_device(struct platform_device *pdev) +{
- struct host1x *host = platform_get_drvdata(pdev);
- return host->drm_device;
+} +EXPORT_SYMBOL(host1x_drm_device);
This should be called host1x_get_drm_device