Disable display on iMacs, as they can't do link training on the internal display.
(tested on iMac20,1) Signed-off-by: Atharva Tiwari <[email protected]> --- .../gpu/drm/i915/display/intel_display_device.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index 1170afaa8680..b1fec1018d7e 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -3,6 +3,7 @@ * Copyright © 2023 Intel Corporation */ +#include <linux/dmi.h> #include <linux/pci.h> #include <drm/drm_color_mgmt.h> @@ -1435,7 +1436,18 @@ static bool has_no_display(struct pci_dev *pdev) {} }; - return pci_match_id(ids, pdev); + static const struct dmi_system_id dmi_ids[] = { + { + .ident = "Apple Inc. iMac", + .matches = { + DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "iMac"), + } + }, + {} + }; + + return pci_match_id(ids, pdev) || dmi_check_system(dmi_ids); } #define INTEL_DISPLAY_DEVICE(_id, _desc) { .devid = (_id), .desc = (_desc) } -- 2.43.0
