diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_acpi.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_acpi.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c index 31c9a92..6efbd65 100644 --- a/drivers/gpu/drm/radeon/radeon_acpi.c +++ b/drivers/gpu/drm/radeon/radeon_acpi.c @@ -25,6 +25,7 @@ #include <linux/acpi.h> #include <linux/slab.h> #include <linux/power_supply.h> +#include <linux/pm_runtime.h> #include <acpi/video.h> #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> @@ -32,6 +33,12 @@ #include "radeon_acpi.h" #include "atom.h" +#if defined(CONFIG_VGA_SWITCHEROO) +bool radeon_atpx_dgpu_req_power_for_displays(void); +#else +static inline bool radeon_atpx_dgpu_req_power_for_displays(void) { return false; } +#endif + #define ACPI_AC_CLASS "ac_adapter" extern void radeon_pm_acpi_event_handler(struct radeon_device *rdev); @@ -394,6 +401,16 @@ int radeon_atif_handler(struct radeon_device *rdev, #endif } } + if (req.pending & ATIF_DGPU_DISPLAY_EVENT) { + if ((rdev->flags & RADEON_IS_PX) && + radeon_atpx_dgpu_req_power_for_displays()) { + pm_runtime_get_sync(rdev->ddev->dev); + /* Just fire off a uevent and let userspace tell us what to do */ + drm_helper_hpd_irq_event(rdev->ddev); + pm_runtime_mark_last_busy(rdev->ddev->dev); + pm_runtime_put_autosuspend(rdev->ddev->dev); + } + } /* TODO: check other events */ /* We've handled the event, stop the notifier chain. The ACPI interface |
