diff options
Diffstat (limited to 'src/drivers/gfx/generic/generic.c')
| -rw-r--r-- | src/drivers/gfx/generic/generic.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/drivers/gfx/generic/generic.c b/src/drivers/gfx/generic/generic.c index e3ae62f588d0..cd323142dac4 100644 --- a/src/drivers/gfx/generic/generic.c +++ b/src/drivers/gfx/generic/generic.c @@ -114,8 +114,16 @@ static void gfx_fill_ssdt_generator(const struct device *dev) acpigen_write_method("_DOD", 0); acpigen_emit_byte(RETURN_OP); acpigen_write_package(config->device_count); - for (i = 0; i < config->device_count; i++) + for (i = 0; i < config->device_count; i++) { + /* Generate the Device ID if addr = 0 and type != 0 */ + if (!config->device[i].addr && config->device[i].type) + /* Though not strictly necessary, set the display index and + port attachment to the device index, to ensure uniqueness */ + config->device[i].addr = DOD_DID_STD | DOD_FW_DETECT | \ + (config->device[i].type << 8) | \ + (i << 4) | (i); acpigen_write_dword(config->device[i].addr); + } acpigen_pop_len(); /* End Package. */ acpigen_pop_len(); /* End Method. */ |