diff options
| author | Jyri Sarha <jsarha@ti.com> | 2015-02-10 14:13:23 +0200 |
|---|---|---|
| committer | Jyri Sarha <jsarha@ti.com> | 2015-05-27 13:13:32 +0300 |
| commit | 103cd8bc1c80ec0a12ef438c4493f7c26edc71bd (patch) | |
| tree | a920df6557783343097c39d5f29680e6c637fda6 /drivers/gpu/drm/tilcdc/tilcdc_external.h | |
| parent | 6730201f4fdcfbb1e6ec5ec374e6ef95e5bf9662 (diff) | |
drm/tilcdc: Add support for external tda998x encoder
Add support for an external compontised DRM encoder. The external
encoder can be connected to tilcdc trough device tree graph binding.
The binding document for tilcdc has been updated. The current
implementation supports only tda998x encoder.
To be able to filter out the unsupported video modes the tilcdc driver
needs to hijack the external connectors helper functions. The tilcdc
installes new helper functions that are otherwise identical to
orignals, but the mode_valid() call-back check the mode first localy,
before calling the original call-back. The tilcdc dirver restores the
original helper functions before it is unbound from the external
device.
I got the idea and some lines of code from Jean-Francois Moine's
"drm/tilcdc: Change the interface with the tda998x driver"-patch.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_external.h')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_external.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.h b/drivers/gpu/drm/tilcdc/tilcdc_external.h new file mode 100644 index 000000000000..6aabe2788760 --- /dev/null +++ b/drivers/gpu/drm/tilcdc/tilcdc_external.h @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2015 Texas Instruments + * Author: Jyri Sarha <jsarha@ti.com> + * + * 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. + * + * This program is distributed in the hope that 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 __TILCDC_EXTERNAL_H__ +#define __TILCDC_EXTERNAL_H__ + +int tilcdc_add_external_encoders(struct drm_device *dev, int *bpp); +void tilcdc_remove_external_encoders(struct drm_device *dev); +int tilcdc_get_external_components(struct device *dev, + struct component_match **match); +#endif /* __TILCDC_SLAVE_H__ */ |