xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/dsi: Get DSI host by DT device node

Browse Source 
MIPI DSI devices are inherently aware of their host because they share a
parent-child hierarchy in the device tree.

Non-DSI drivers that create DSI device don't have this data. In order to
get this information, they require to a phandle to the DSI host in the
device tree.

Maintain a list of all the DSI hosts that are currently registered. This
list will be used to find the struct mipi_dsi_host corresponding to the
device tree node passed to of_find_mipi_dsi_host_by_node().

Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Archit Taneja
2016-02-12 14:48:34 +05:30
committed by Thierry Reding
parent 509e42ce04
commit 97b6ae50e0
2 changed files with 42 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/drm/drm_mipi_dsi.h
View File

@@ -96,14 +96,17 @@ struct mipi_dsi_host_ops {
* struct mipi_dsi_host - DSI host device
* @dev: driver model device node for this DSI host
* @ops: DSI host operations
* @list: list management
*/
struct mipi_dsi_host {
struct device *dev;
const struct mipi_dsi_host_ops *ops;
struct list_head list;
};
int mipi_dsi_host_register(struct mipi_dsi_host *host);
void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
struct mipi_dsi_host *of_find_mipi_dsi_host_by_node(struct device_node *node);
/* DSI mode flags */