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-rw-r--r--src/soc/amd/mendocino/root_complex.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/soc/amd/mendocino/root_complex.c b/src/soc/amd/mendocino/root_complex.c
index 6217246802..53a245b609 100644
--- a/src/soc/amd/mendocino/root_complex.c
+++ b/src/soc/amd/mendocino/root_complex.c
@@ -12,11 +12,13 @@
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
+#include <fsp/amd_misc_data.h>
#include <fsp/util.h>
#include <soc/iomap.h>
#include <stdint.h>
#include "chip.h"
+#define TDP_15W 15
#define DPTC_TOTAL_UPDATE_PARAMS 13
struct dptc_input {
@@ -367,7 +369,18 @@ static void acipgen_dptci(void)
static void root_complex_fill_ssdt(const struct device *device)
{
+ uint32_t tdp = 0;
+
acpi_fill_root_complex_tom(device);
+
+ if (get_amd_smu_reported_tdp(&tdp) != CB_SUCCESS) {
+ /* Unknown TDP, so return rather than setting invalid values. */
+ return;
+ }
+ /* TODO(b/249359574): Add support for 6W DPTC values. */
+ if (tdp != TDP_15W)
+ return;
+
if (CONFIG(SOC_AMD_COMMON_BLOCK_ACPI_DPTC))
acipgen_dptci();
}