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drm/i915: debug log when GMD ID indicates there's no display

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Debug log similar to the device id based identification of no display.

Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804084600.1005818-2-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2023-08-04 11:46:00 +03:00
parent 1435188307
commit bf9e1bdaf1
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/i915/display/intel_display_device.c
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@ -831,9 +831,10 @@ probe_gmdid_display(struct drm_i915_private *i915, u16 *ver, u16 *rel, u16 *step
val = ioread32(addr);
pci_iounmap(pdev, addr);
if (val == 0)
/* Platform doesn't have display */
if (val == 0) {
drm_dbg_kms(&i915->drm, "Device doesn't have display\n");
return &no_display;
}
*ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, val);
*rel = REG_FIELD_GET(GMD_ID_RELEASE_MASK, val);