diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 51954deaf6441..c7841b3eede85 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -3166,6 +3166,32 @@ static struct vbt_header *oprom_get_vbt(struct drm_i915_private *i915, return NULL; } +static const struct vbt_header *intel_bios_get_vbt(struct drm_i915_private *i915, + size_t *sizep) +{ + const struct vbt_header *vbt = NULL; + intel_wakeref_t wakeref; + + vbt = firmware_get_vbt(i915, sizep); + + if (!vbt) + vbt = intel_opregion_get_vbt(i915, sizep); + + /* + * If the OpRegion does not have VBT, look in SPI flash + * through MMIO or PCI mapping + */ + if (!vbt && IS_DGFX(i915)) + with_intel_runtime_pm(&i915->runtime_pm, wakeref) + vbt = spi_oprom_get_vbt(i915, sizep); + + if (!vbt) + with_intel_runtime_pm(&i915->runtime_pm, wakeref) + vbt = oprom_get_vbt(i915, sizep); + + return vbt; +} + /** * intel_bios_init - find VBT and initialize settings from the BIOS * @i915: i915 device instance @@ -3177,7 +3203,6 @@ static struct vbt_header *oprom_get_vbt(struct drm_i915_private *i915, void intel_bios_init(struct drm_i915_private *i915) { const struct vbt_header *vbt; - struct vbt_header *oprom_vbt = NULL; const struct bdb_header *bdb; INIT_LIST_HEAD(&i915->display.vbt.display_devices); @@ -3191,27 +3216,7 @@ void intel_bios_init(struct drm_i915_private *i915) init_vbt_defaults(i915); - oprom_vbt = firmware_get_vbt(i915, NULL); - vbt = oprom_vbt; - - if (!vbt) { - oprom_vbt = intel_opregion_get_vbt(i915, NULL); - vbt = oprom_vbt; - } - - /* - * If the OpRegion does not have VBT, look in SPI flash through MMIO or - * PCI mapping - */ - if (!vbt && IS_DGFX(i915)) { - oprom_vbt = spi_oprom_get_vbt(i915, NULL); - vbt = oprom_vbt; - } - - if (!vbt) { - oprom_vbt = oprom_get_vbt(i915, NULL); - vbt = oprom_vbt; - } + vbt = intel_bios_get_vbt(i915, NULL); if (!vbt) goto out; @@ -3244,7 +3249,7 @@ void intel_bios_init(struct drm_i915_private *i915) parse_sdvo_device_mapping(i915); parse_ddi_ports(i915); - kfree(oprom_vbt); + kfree(vbt); } static void intel_bios_init_panel(struct drm_i915_private *i915, @@ -3774,13 +3779,12 @@ static int intel_bios_vbt_show(struct seq_file *m, void *unused) const void *vbt; size_t vbt_size; - /* - * FIXME: VBT might originate from other places than opregion, and then - * this would be incorrect. - */ - vbt = intel_opregion_get_vbt(i915, &vbt_size); - if (vbt) + vbt = intel_bios_get_vbt(i915, &vbt_size); + + if (vbt) { seq_write(m, vbt, vbt_size); + kfree(vbt); + } return 0; }