ad78553f5d
ALIB function 1 needs to be called every time there is a change in AC/DC state of the system. This change adds a wrapper method that can be called by PNOT (method to notify system power state change) to report to ALIB that system power state has changed i.e. AC <-> DC. Additionally, this change drops the call to ALIB from _INI method since the PWRS object might not be initialized correctly at that point. Instead EC makes a call to PNOT when PWRS is initialized. This wrapper also fixes the value of power state being passed into ALIB. ALIB expects 0 = AC and 1 = DC. On the other hand, PWRS reports 1 as AC and 0 as DC. WAL1() takes care of inverting the PWRS state before passing into ALIB. BUG=b:157752693 TEST=Verified that WAL1() gets called on AC connect/disconnect. Steps followed: $ echo 1 > /sys/module/acpi/parameters/aml_debug_output $ dmesg -w | grep ACPI [ 76.306947] ACPI Debug: "EC: AC DISCONNECTED" [ 76.307064] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x01" [ 82.264946] ACPI Debug: "EC: GOT PD EVENT" [ 82.539833] ACPI Debug: "EC: GOT PD EVENT" [ 82.753721] ACPI Debug: "EC: GOT PD EVENT" [ 82.843676] ACPI Debug: "EC: GOT PD EVENT" [ 82.970596] ACPI Debug: "EC: AC CONNECTED" [ 82.970659] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x00" [ 83.047598] ACPI Debug: "EC: GOT PD EVENT" [ 84.804733] ACPI Debug: "EC: GOT PD EVENT" [ 86.317934] ACPI Debug: "EC: GOT PD EVENT" [ 86.385920] ACPI Debug: "EC: GOT PD EVENT" [ 86.515830] ACPI Debug: "EC: AC DISCONNECTED" [ 86.515922] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x01" [ 90.089062] ACPI Debug: "EC: GOT PD EVENT" [ 90.357914] ACPI Debug: "EC: GOT PD EVENT" [ 90.573812] ACPI Debug: "EC: GOT PD EVENT" [ 90.662744] ACPI Debug: "EC: GOT PD EVENT" [ 90.788706] ACPI Debug: "EC: AC CONNECTED" [ 90.788835] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x00" [ 90.865675] ACPI Debug: "EC: GOT PD EVENT" [ 92.621793] ACPI Debug: "EC: GOT PD EVENT" Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I1f2ade28ca35378ebf4647d8df3d2ea4d0b08096 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42297 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> |
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| picasso | ||
| stoneyridge | ||
| Kconfig | ||