diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c index 1a6d7c89660d..774ca47b019f 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c @@ -1150,6 +1150,8 @@ static void r535_gsp_acpi_mux_id(acpi_handle handle, u32 id, MUX_METHOD_DATA_ELEMENT *mode, MUX_METHOD_DATA_ELEMENT *part) { + union acpi_object mux_arg = { ACPI_TYPE_INTEGER }; + struct acpi_object_list input = { 1, &mux_arg }; acpi_handle iter = NULL, handle_mux = NULL; acpi_status status; unsigned long long value; @@ -1172,14 +1174,18 @@ r535_gsp_acpi_mux_id(acpi_handle handle, u32 id, MUX_METHOD_DATA_ELEMENT *mode, if (!handle_mux) return; - status = acpi_evaluate_integer(handle_mux, "MXDM", NULL, &value); + /* I -think- 0 means "acquire" according to nvidia's driver source */ + input.pointer->integer.type = ACPI_TYPE_INTEGER; + input.pointer->integer.value = 0; + + status = acpi_evaluate_integer(handle_mux, "MXDM", &input, &value); if (ACPI_SUCCESS(status)) { mode->acpiId = id; mode->mode = value; mode->status = 0; } - status = acpi_evaluate_integer(handle_mux, "MXDS", NULL, &value); + status = acpi_evaluate_integer(handle_mux, "MXDS", &input, &value); if (ACPI_SUCCESS(status)) { part->acpiId = id; part->mode = value; |