diff options
| author | Martin Peres <martin.peres@free.fr> | 2016-08-25 03:57:07 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2016-10-12 17:29:29 +1000 |
| commit | 8d021d71b3247937a26ffdf313fd53a9d58778b7 (patch) | |
| tree | 7195553732d001f1b66f896f30be8c5b70a0b3af /drivers/gpu/drm/nouveau/nouveau_drm.c | |
| parent | ebaf3e70aabea8e3d86d977ab96261d7452b7a0d (diff) | |
drm/nouveau/drm/nouveau: add a LED driver for the NVIDIA logo
We received a donation of a Titan which has this useless feature
allowing users to control the brightness of the LED behind the
logo of NVIDIA. In the true spirit of open source, let's expose
that to the users of very expensive cards!
This patch hooks up this LED/PWM to the LED subsystem which allows
blinking it in sync with cpu/disk/network/whatever activity (heartbeat
is quite nice!). Users may also implement some breathing effect or
morse code support in the userspace if they feel like it.
v2:
- surround the use of the LED framework with ifdef CONFIG_LEDS_CLASS
v3:
- avoid using ifdefs everywhere, follow the recommendations of
/doc/Documentation/CodingStyle. Suggested by Emil Velikov.
v4 (Ben):
- squashed series of fixes from ml
Signed-off-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_drm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_drm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 3100fd88a015..6adf94789417 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -47,6 +47,7 @@ #include "nouveau_ttm.h" #include "nouveau_gem.h" #include "nouveau_vga.h" +#include "nouveau_led.h" #include "nouveau_hwmon.h" #include "nouveau_acpi.h" #include "nouveau_bios.h" @@ -475,6 +476,7 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags) nouveau_hwmon_init(dev); nouveau_accel_init(drm); nouveau_fbcon_init(dev); + nouveau_led_init(dev); if (nouveau_runtime_pm != 0) { pm_runtime_use_autosuspend(dev->dev); @@ -510,6 +512,7 @@ nouveau_drm_unload(struct drm_device *dev) pm_runtime_forbid(dev->dev); } + nouveau_led_fini(dev); nouveau_fbcon_fini(dev); nouveau_accel_fini(drm); nouveau_hwmon_fini(dev); @@ -561,6 +564,8 @@ nouveau_do_suspend(struct drm_device *dev, bool runtime) struct nouveau_cli *cli; int ret; + nouveau_led_suspend(dev); + if (dev->mode_config.num_crtc) { NV_INFO(drm, "suspending console...\n"); nouveau_fbcon_set_suspend(dev, 1); @@ -649,6 +654,8 @@ nouveau_do_resume(struct drm_device *dev, bool runtime) nouveau_fbcon_set_suspend(dev, 0); } + nouveau_led_resume(dev); + return 0; } |