diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-04-14 11:32:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-14 11:32:30 +0200 |
| commit | 05cfbd66d07c44865983c8b65ae9d0037d874206 (patch) | |
| tree | 084b665cc97b47d1592fe76ea0a39a7753288a02 /drivers/gpu/drm/i915/i915_opregion.c | |
| parent | 31c9a24ec82926fcae49483e53566d231e705057 (diff) | |
| parent | ef631b0ca01655d24e9ca7e199262c4a46416a26 (diff) | |
Merge branch 'core/urgent' into core/rcu
Merge reason: new patches to be queued up depend on:
ef631b0: rcu: Make hierarchical RCU less IPI-happy
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_opregion.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_opregion.c | 65 |
1 files changed, 64 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c index ff012835a38..69427722d20 100644 --- a/drivers/gpu/drm/i915/i915_opregion.c +++ b/drivers/gpu/drm/i915/i915_opregion.c @@ -26,6 +26,7 @@ */ #include <linux/acpi.h> +#include <acpi/video.h> #include "drmP.h" #include "i915_drm.h" @@ -136,6 +137,12 @@ struct opregion_asle { #define ASLE_CBLV_VALID (1<<31) +#define ACPI_OTHER_OUTPUT (0<<8) +#define ACPI_VGA_OUTPUT (1<<8) +#define ACPI_TV_OUTPUT (2<<8) +#define ACPI_DIGITAL_OUTPUT (3<<8) +#define ACPI_LVDS_OUTPUT (4<<8) + static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -282,7 +289,58 @@ static struct notifier_block intel_opregion_notifier = { .notifier_call = intel_opregion_video_event, }; -int intel_opregion_init(struct drm_device *dev) +/* + * Initialise the DIDL field in opregion. This passes a list of devices to + * the firmware. Values are defined by section B.4.2 of the ACPI specification + * (version 3) + */ + +static void intel_didl_outputs(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_opregion *opregion = &dev_priv->opregion; + struct drm_connector *connector; + int i = 0; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + int output_type = ACPI_OTHER_OUTPUT; + if (i >= 8) { + dev_printk (KERN_ERR, &dev->pdev->dev, + "More than 8 outputs detected\n"); + return; + } + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_VGA: + case DRM_MODE_CONNECTOR_DVIA: + output_type = ACPI_VGA_OUTPUT; + break; + case DRM_MODE_CONNECTOR_Composite: + case DRM_MODE_CONNECTOR_SVIDEO: + case DRM_MODE_CONNECTOR_Component: + case DRM_MODE_CONNECTOR_9PinDIN: + output_type = ACPI_TV_OUTPUT; + break; + case DRM_MODE_CONNECTOR_DVII: + case DRM_MODE_CONNECTOR_DVID: + case DRM_MODE_CONNECTOR_DisplayPort: + case DRM_MODE_CONNECTOR_HDMIA: + case DRM_MODE_CONNECTOR_HDMIB: + output_type = ACPI_DIGITAL_OUTPUT; + break; + case DRM_MODE_CONNECTOR_LVDS: + output_type = ACPI_LVDS_OUTPUT; + break; + } + opregion->acpi->didl[i] |= (1<<31) | output_type | i; + i++; + } + + /* If fewer than 8 outputs, the list must be null terminated */ + if (i < 8) + opregion->acpi->didl[i] = 0; +} + +int intel_opregion_init(struct drm_device *dev, int resume) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_opregion *opregion = &dev_priv->opregion; @@ -312,6 +370,11 @@ int intel_opregion_init(struct drm_device *dev) if (mboxes & MBOX_ACPI) { DRM_DEBUG("Public ACPI methods supported\n"); opregion->acpi = base + OPREGION_ACPI_OFFSET; + if (drm_core_check_feature(dev, DRIVER_MODESET)) { + intel_didl_outputs(dev); + if (!resume) + acpi_video_register(); + } } else { DRM_DEBUG("Public ACPI methods not supported\n"); err = -ENOTSUPP; |