platform: mips: cpu_hwmon: Disable driver on unsupported hardware
cpu_hwmon is unsupported on CPUs without loongson_chiptemp register and csr. Cc: stable@vger.kernel.org Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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@ -139,6 +139,9 @@ static int __init loongson_hwmon_init(void)
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csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) &
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csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) &
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LOONGSON_CSRF_TEMP;
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LOONGSON_CSRF_TEMP;
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if (!csr_temp_enable && !loongson_chiptemp[0])
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return -ENODEV;
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nr_packages = loongson_sysconf.nr_cpus /
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nr_packages = loongson_sysconf.nr_cpus /
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loongson_sysconf.cores_per_package;
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loongson_sysconf.cores_per_package;
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