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drivers/intel/mipi_camera: Add ACPI entry to provide silicon type info

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Add entry in ACPI table under IPU device to provide silicon type
information to IPU driver. IPU kernel driver can decide the type of
firmware to load based on this information.

BUG=b:207721978
BRANCH=none
TEST=Check for the ACPI entry in the SSDT after booting to kernel

Change-Id: I4e0af1dd50b9c014cae5454fcd4f9f76d0e0a85f
Cq-Depend: chromium:3319905
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59869
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Sugnan Prabhu S
2021-12-03 19:07:04 +05:30
committed by Felix Held
parent feab8bb195
commit dcf045918b
2 changed files with 16 additions and 0 deletions
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10
src/drivers/intel/mipi_camera/camera.c
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@@ -5,7 +5,9 @@
#include <acpi/acpi_device.h>
#include <acpi/acpigen.h>
#include <acpi/acpigen_pci.h>
#include <arch/cpu.h>
#include <console/console.h>
#include <cpu/intel/cpu_ids.h>
#include <device/i2c_simple.h>
#include <device/device.h>
#include <device/path.h>
@@ -134,6 +136,14 @@ static void camera_fill_cio2(const struct device *dev)
snprintf(name, sizeof(name), "port%u", i);
port_name[i] = strdup(name);
if (CONFIG(ACPI_ADL_IPU_ES_SUPPORT)) {
u32 cpu_id = cpu_get_cpuid();
if (cpu_id == CPUID_ALDERLAKE_A0 || cpu_id == CPUID_ALDERLAKE_A1)
acpi_dp_add_integer(dsd, "is_es", 1);
else
acpi_dp_add_integer(dsd, "is_es", 0);
}
acpi_dp_add_child(dsd, port_name[i], port_table);
}