[S] Change in coreboot[master]: mb/google: Add more comment on GFX devices for the future reference
Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/76776?usp=email )
Change subject: mb/google: Add more comment on GFX devices for the future reference ......................................................................
mb/google: Add more comment on GFX devices for the future reference
Add more details to instruct future boards/models implementers regarding how GFX devices should be added.
If HDMI and DP connectors are enumerated by the kernel in /sys/class/drm/ then corresponding GFX device should be added to ACPI. It is possible that some connectors do not have dedicated ports, but still enumerated.
The order of GFX devices is DDIA -> DDIB -> TCPX.
BUG=b:277629750 TEST=emerge-brya coreboot
Change-Id: I59e82ee954a7d502e419046c1c2d7a20ea8a9224 Signed-off-by: Won Chung wonchung@google.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/76776 Reviewed-by: Kapil Porwal kapilporwal@google.com Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Jakub Czapiga jacz@semihalf.com --- M src/mainboard/google/brya/variants/brya0/overridetree.cb M src/mainboard/google/brya/variants/redrix/overridetree.cb M src/mainboard/google/brya/variants/redrix4es/overridetree.cb M src/mainboard/google/brya/variants/skolas/overridetree.cb M src/mainboard/google/brya/variants/skolas4es/overridetree.cb M src/mainboard/google/rex/variants/rex0/overridetree.cb 6 files changed, 17 insertions(+), 13 deletions(-)
Approvals: build bot (Jenkins): Verified Jakub Czapiga: Looks good to me, approved Kapil Porwal: Looks good to me, approved
diff --git a/src/mainboard/google/brya/variants/brya0/overridetree.cb b/src/mainboard/google/brya/variants/brya0/overridetree.cb index 31d78a4a..50fadbc 100644 --- a/src/mainboard/google/brya/variants/brya0/overridetree.cb +++ b/src/mainboard/google/brya/variants/brya0/overridetree.cb @@ -122,6 +122,7 @@ # DDIA for eDP register "device[0].name" = ""LCD"" # DDIB for HDMI + # If HDMI is not enumerated in the kernel, then no GFX device should be added for DDIB register "device[1].name" = ""DD01"" # TCP0 (DP-1) for port C0 register "device[2].name" = ""DD02"" @@ -135,7 +136,7 @@ register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(3, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on end end diff --git a/src/mainboard/google/brya/variants/redrix/overridetree.cb b/src/mainboard/google/brya/variants/redrix/overridetree.cb index 26b15e2..e825996 100644 --- a/src/mainboard/google/brya/variants/redrix/overridetree.cb +++ b/src/mainboard/google/brya/variants/redrix/overridetree.cb @@ -117,13 +117,13 @@ register "device[2].name" = ""DD02"" register "device[2].use_pld" = "true" register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))" - # TCP1 (DP-2) unused + # TCP1 (DP-2) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP1 register "device[3].name" = ""DD03"" # TCP2 (DP-3) for port C2 register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on probe EPS PRIVACY_SCREEN @@ -139,13 +139,13 @@ register "device[2].name" = ""DD02"" register "device[2].use_pld" = "true" register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))" - # TCP1 (DP-2) unused + # TCP1 (DP-2) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP1 register "device[3].name" = ""DD03"" # TCP2 (DP-3) for port C2 register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on probe EPS PRIVACY_SCREEN_ABSENT diff --git a/src/mainboard/google/brya/variants/redrix4es/overridetree.cb b/src/mainboard/google/brya/variants/redrix4es/overridetree.cb index 6509061..a2cac5a 100644 --- a/src/mainboard/google/brya/variants/redrix4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/redrix4es/overridetree.cb @@ -98,13 +98,13 @@ register "device[2].name" = ""DD02"" register "device[2].use_pld" = "true" register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))" - # TCP1 (DP-2) unused + # TCP1 (DP-2) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP1 register "device[3].name" = ""DD03"" # TCP2 (DP-3) for port C2 register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on probe EPS PRIVACY_SCREEN @@ -120,13 +120,13 @@ register "device[2].name" = ""DD02"" register "device[2].use_pld" = "true" register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))" - # TCP1 (DP-2) unused + # TCP1 (DP-2) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP1 register "device[3].name" = ""DD03"" # TCP2 (DP-3) for port C2 register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on probe EPS PRIVACY_SCREEN_ABSENT diff --git a/src/mainboard/google/brya/variants/skolas/overridetree.cb b/src/mainboard/google/brya/variants/skolas/overridetree.cb index 1740432..8cc5157 100644 --- a/src/mainboard/google/brya/variants/skolas/overridetree.cb +++ b/src/mainboard/google/brya/variants/skolas/overridetree.cb @@ -122,6 +122,7 @@ # DDIA for eDP register "device[0].name" = ""LCD"" # DDIB for HDMI + # If HDMI is not enumerated in the kernel, then no GFX device should be added for DDIB register "device[1].name" = ""DD01"" # TCP0 (DP-1) for port C0 register "device[2].name" = ""DD02"" @@ -135,7 +136,7 @@ register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(3, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on end end diff --git a/src/mainboard/google/brya/variants/skolas4es/overridetree.cb b/src/mainboard/google/brya/variants/skolas4es/overridetree.cb index 0c0aa82..407e0a1 100644 --- a/src/mainboard/google/brya/variants/skolas4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/skolas4es/overridetree.cb @@ -118,6 +118,7 @@ # DDIA for eDP register "device[0].name" = ""LCD"" # DDIB for HDMI + # If HDMI is not enumerated in the kernel, then no GFX device should be added for DDIB register "device[1].name" = ""DD01"" # TCP0 (DP-1) for port C0 register "device[2].name" = ""DD02"" @@ -131,7 +132,7 @@ register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(3, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on end end diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb index 793a46d..0cbea7b 100644 --- a/src/mainboard/google/rex/variants/rex0/overridetree.cb +++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb @@ -154,18 +154,19 @@ # DDIA for eDP register "device[0].name" = ""LCD"" # DDIB for HDMI + # If HDMI is not enumerated in the kernel, then no GFX device should be added for DDIB register "device[1].name" = ""DD01"" # TCP0 (DP-1) for port C0 register "device[2].name" = ""DD02"" register "device[2].use_pld" = "true" register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))" - # TCP1 (DP-2) unused + # TCP1 (DP-2) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP1 register "device[3].name" = ""DD03"" # TCP2 (DP-3) for port C1 register "device[4].name" = ""DD04"" register "device[4].use_pld" = "true" register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))" - # TCP3 (DP-4) unused + # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3 register "device[5].name" = ""DD05"" device generic 0 on end end
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Felix Held (Code Review)