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authorArchit Taneja <architt@codeaurora.org>2016-02-12 12:18:34 +0300
committerThierry Reding <treding@nvidia.com>2016-03-02 19:02:54 +0300
commit97b6ae50e05c533b6455e304d36bdf2bb5604ee6 (patch)
tree9918354dad0852f0c3d0108e7c0e59b447cefab4 /include/drm
parent509e42ce0441df39d5241150c1bec32cf6347b6c (diff)
downloadlinux-97b6ae50e05c533b6455e304d36bdf2bb5604ee6.tar.xz
drm/dsi: Get DSI host by DT device node
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>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_mipi_dsi.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 06e0a9382b35..7a9840f8b38e 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -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 */