diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2022-02-10 13:36:46 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2022-02-11 10:54:46 +0300 |
| commit | a391e06958b2fe3f53171ba04f60dadf17b09d5b (patch) | |
| tree | 2db62cecd1c0c549192592e3cc1f4971e8ba7454 /drivers/gpu/drm/i915/display/intel_opregion.c | |
| parent | 69898171829d6fb92e366a989f2f14d8b5b15e21 (diff) | |
| download | linux-a391e06958b2fe3f53171ba04f60dadf17b09d5b.tar.xz | |
drm/i915/opregion: debug log about Mailbox #2 for backlight
Start debug logging about the presence of the new Mailbox #2 for
backlight. Actual support is to be added later.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/42fd9cd777c5cc9a8d48db9dd8306924c735918e.1644489329.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_opregion.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_opregion.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c index 11de19da0948..f31e8c3f8ce0 100644 --- a/drivers/gpu/drm/i915/display/intel_opregion.c +++ b/drivers/gpu/drm/i915/display/intel_opregion.c @@ -47,10 +47,11 @@ #define OPREGION_ASLE_EXT_OFFSET 0x1C00 #define OPREGION_SIGNATURE "IntelGraphicsMem" -#define MBOX_ACPI (1<<0) -#define MBOX_SWSCI (1<<1) -#define MBOX_ASLE (1<<2) -#define MBOX_ASLE_EXT (1<<4) +#define MBOX_ACPI BIT(0) /* Mailbox #1 */ +#define MBOX_SWSCI BIT(1) /* Mailbox #2 (obsolete from v2.x) */ +#define MBOX_ASLE BIT(2) /* Mailbox #3 */ +#define MBOX_ASLE_EXT BIT(4) /* Mailbox #5 */ +#define MBOX_BACKLIGHT BIT(5) /* Mailbox #2 (valid from v3.x) */ struct opregion_header { u8 signature[16]; @@ -957,6 +958,10 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv) opregion->asle_ext = base + OPREGION_ASLE_EXT_OFFSET; } + if (mboxes & MBOX_BACKLIGHT) { + drm_dbg(&dev_priv->drm, "Mailbox #2 for backlight present\n"); + } + if (intel_load_vbt_firmware(dev_priv) == 0) goto out; |