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| author | Alex Deucher <alexdeucher@gmail.com> | 2009-12-04 16:56:37 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-12-08 10:48:22 +1000 |
| commit | d4877cf2293f5463f531769fd12300cb3417c778 (patch) | |
| tree | ee9533aaf9fac0bbec859cf5d888fa73a71875bd /drivers/gpu/drm/radeon/radeon_irq_kms.c | |
| parent | 429770b3e39999c4d025fbcb9959502adc3989d8 (diff) | |
| download | kernel_samsung_smdk4412-d4877cf2293f5463f531769fd12300cb3417c778.zip kernel_samsung_smdk4412-d4877cf2293f5463f531769fd12300cb3417c778.tar.gz kernel_samsung_smdk4412-d4877cf2293f5463f531769fd12300cb3417c778.tar.bz2 | |
drm/radeon/kms: enable hpd support
This enabled interrupt driven hpd support for all
radeon chips. Assuming the hpd pin is wired up
correctly, the driver will generate uevents on
digital monitor connect and disconnect and retrain
DP monitors automatically.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_irq_kms.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_irq_kms.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 2678997..9223296 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -39,11 +39,32 @@ irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS) return radeon_irq_process(rdev); } +/* + * Handle hotplug events outside the interrupt handler proper. + */ +static void radeon_hotplug_work_func(struct work_struct *work) +{ + struct radeon_device *rdev = container_of(work, struct radeon_device, + hotplug_work); + struct drm_device *dev = rdev->ddev; + struct drm_mode_config *mode_config = &dev->mode_config; + struct drm_connector *connector; + + if (mode_config->num_connector) { + list_for_each_entry(connector, &mode_config->connector_list, head) + radeon_connector_hotplug(connector); + } + /* Just fire off a uevent and let userspace tell us what to do */ + drm_sysfs_hotplug_event(dev); +} + void radeon_driver_irq_preinstall_kms(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; unsigned i; + INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func); + /* Disable *all* interrupts */ rdev->irq.sw_int = false; for (i = 0; i < 2; i++) { |