1// SPDX-License-Identifier: GPL-2.0-only
2#include <linux/acpi.h>
3#include <linux/export.h>
4
5#include "../internal.h"
6
7#define SMCCC_SOC_ID_T241 0x036b0241
8
9int acpi_arch_thermal_cpufreq_pctg(void)
10{
11 s32 soc_id = arm_smccc_get_soc_id_version();
12
13 /*
14 * Check JEP106 code for NVIDIA Tegra241 chip (036b:0241) and
15 * reduce the CPUFREQ Thermal reduction percentage to 5%.
16 */
17 if (soc_id == SMCCC_SOC_ID_T241)
18 return 5;
19
20 return 0;
21}
22EXPORT_SYMBOL_GPL(acpi_arch_thermal_cpufreq_pctg);
23

source code of linux/drivers/acpi/arm64/thermal_cpufreq.c