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| author |   Thierry Reding <treding@nvidia.com> | 2016-06-03 14:23:00 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2016-06-13 10:45:57 +0200 |
| commit | babb24fec12ce391157be8d7355df5a8e991355e (patch) | |
| tree | 5340044631cdc1bfb2e6c2731b86c5306c920f25 /drivers/gpu/drm/drm_mipi_dsi.c | |
| parent | drm: fb: cma: fix memory leak (diff) | |
| download | linux-dev-babb24fec12ce391157be8d7355df5a8e991355e.tar.xz linux-dev-babb24fec12ce391157be8d7355df5a8e991355e.zip | |
drm/dsi: Add uevent callback
Implement a uevent callback for devices on the MIPI DSI bus. This
callback will append MODALIAS information to the uevent and allow
modules to be loaded when devices are added to the bus.
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/drm_mipi_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dsi.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 7938ce7ebed8..49311fc61d5d 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -60,6 +60,21 @@ static int mipi_dsi_device_match(struct device *dev, struct device_driver *drv) return 0; } +static int mipi_dsi_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev); + int err; + + err = of_device_uevent_modalias(dev, env); + if (err != -ENODEV) + return err; + + add_uevent_var(env, "MODALIAS=%s%s", MIPI_DSI_MODULE_PREFIX, + dsi->name); + + return 0; +} + static const struct dev_pm_ops mipi_dsi_device_pm_ops = { .runtime_suspend = pm_generic_runtime_suspend, .runtime_resume = pm_generic_runtime_resume, @@ -74,6 +89,7 @@ static const struct dev_pm_ops mipi_dsi_device_pm_ops = { static struct bus_type mipi_dsi_bus_type = { .name = "mipi-dsi", .match = mipi_dsi_device_match, + .uevent = mipi_dsi_uevent, .pm = &mipi_dsi_device_pm_ops, }; |