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drm/dsi: Add routine to unregister a DSI device 

A driver calling mipi_dsi_device_register_full() might want to remove
the device once it's done. It might also require it in an error handling
path in case something went wrong.

Create mipi_dsi_device_unregister() for this purpose and use it within
mipi_dsi_remove_device_fn() as it does the same thing.

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 14:48:33 +05:30 committed by Thierry Reding
parent bf4363ce3a
commit 509e42ce04
2 changed files with 12 additions and 1 deletions
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12
drivers/gpu/drm/drm_mipi_dsi.c
View File

@ -225,6 +225,16 @@ mipi_dsi_device_register_full(struct mipi_dsi_host *host,
}
EXPORT_SYMBOL(mipi_dsi_device_register_full);
/**
* mipi_dsi_device_unregister - unregister MIPI DSI device
* @dsi: DSI peripheral device
*/
void mipi_dsi_device_unregister(struct mipi_dsi_device *dsi)
{
device_unregister(&dsi->dev);
}
EXPORT_SYMBOL(mipi_dsi_device_unregister);
int mipi_dsi_host_register(struct mipi_dsi_host *host)
{
struct device_node *node;
@ -244,7 +254,7 @@ static int mipi_dsi_remove_device_fn(struct device *dev, void *priv)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
device_unregister(&dsi->dev);
mipi_dsi_device_unregister(dsi);
return 0;
}

1
include/drm/drm_mipi_dsi.h
View File

@ -210,6 +210,7 @@ static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
struct mipi_dsi_device *
mipi_dsi_device_register_full(struct mipi_dsi_host *host,
const struct mipi_dsi_device_info *info);
void mipi_dsi_device_unregister(struct mipi_dsi_device *dsi);
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);