diff options
| author | Robert Chiras <robert.chiras@nxp.com> | 2017-11-09 14:01:35 +0200 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:29:20 +0800 |
| commit | be71ddf1ea90e33a5d7988de1a542fa20f0d377f (patch) | |
| tree | 87583e4eeea169cbcf6707ad0e1e2bcacdd7133e /include/drm | |
| parent | efa43b4c018ab4338703a1d01552f857c9cd30e4 (diff) | |
MLK-16918-5: drm: Implement NWL MIPI-DSI as a real drm_bridge
Currently, the Northwest Logic MIPI-DSI controller host specific code
resides under drm/bridge, but is not a real drm_bridge. It creates a
drm_bridge and adds itself to the drm_encoder that handles this file,
but this is wrong, since it does not implement the drm_bridge_funcs.
The correct way to implement a drm_bridge is to add the drm_bridge and
let other components (another bridge or a drm_encoder) to attach to this
bridge.
Since we are doing this, a new compatible strings can be used for this
driver: "nwl,mipi-dsi".
Since this was used by nwl_dsi-imx.c, update that driver to use this
bridge correctly.
This is needed in order to add support for MIPI-DSI on 8MQ. The IMX_NWL
driver will either add a DSI encoder to DRM, or a DSI bridge.
The encoder will be used by imx-drm-core driver, while the bridge
will be used by MXSFB driver (which creates a simple display pipe).
Signed-off-by: Robert Chiras <robert.chiras@nxp.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/bridge/nwl_dsi.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/include/drm/bridge/nwl_dsi.h b/include/drm/bridge/nwl_dsi.h index ae2054157577..11a7bef6d5c1 100644 --- a/include/drm/bridge/nwl_dsi.h +++ b/include/drm/bridge/nwl_dsi.h @@ -28,11 +28,17 @@ enum dpi_pixel_format { DPI_24_BIT }; -unsigned long nwl_dsi_get_bit_clock(struct drm_encoder *encoder, - unsigned long pixclock); +/* + * Just some helper functions to add/remove a bridge into/from encoder bridge + * chain. + */ +bool nwl_dsi_add_bridge(struct drm_encoder *encoder, + struct drm_bridge *next_bridge); -int nwl_dsi_bind(struct device *dev, struct drm_encoder *encoder, - struct phy *phy, struct resource *res, int irq); -void nwl_dsi_unbind(struct drm_bridge *bridge); +bool nwl_dsi_del_bridge(struct drm_encoder *encoder, + struct drm_bridge *bridge); + +unsigned long nwl_dsi_get_bit_clock(struct drm_bridge *bridge, + unsigned long pixclock); #endif /* __NWL_DSI_H__ */ |