Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3ef05924 authored by Thierry Reding's avatar Thierry Reding
Browse files

drm/dsi: Resolve MIPI DSI device from phandle 



Add a function, of_find_mipi_dsi_device_by_node(), that can be used to
resolve a phandle to a MIPI DSI device.

Acked-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 3b46d4a0

drivers/gpu/drm/drm_mipi_dsi.c

+23 −0
Original line number Diff line number Diff line
@@ -67,6 +67,29 @@ static struct bus_type mipi_dsi_bus_type = { 
	.pm = &mipi_dsi_device_pm_ops,

};



static int of_device_match(struct device *dev, void *data)

{

	return dev->of_node == data;

}



/**

 * of_find_mipi_dsi_device_by_node() - find the MIPI DSI device matching a

 *    device tree node

 * @np: device tree node

 *

 * Return: A pointer to the MIPI DSI device corresponding to @np or NULL if no

 *    such device exists (or has not been registered yet).

 */

struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np)

{

	struct device *dev;



	dev = bus_find_device(&mipi_dsi_bus_type, NULL, np, of_device_match);



	return dev ? to_mipi_dsi_device(dev) : NULL;

}

EXPORT_SYMBOL(of_find_mipi_dsi_device_by_node);



static void mipi_dsi_dev_release(struct device *dev)

{

	struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);

include/drm/drm_mipi_dsi.h

+1 −0
Original line number Diff line number Diff line
@@ -163,6 +163,7 @@ static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev) 
	return container_of(dev, struct mipi_dsi_device, dev);

}



struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);

int mipi_dsi_attach(struct mipi_dsi_device *dsi);

int mipi_dsi_detach(struct mipi_dsi_device *dsi);

int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,