powerpc/fsl_soc: improve and simplify fsl_get_sys_freq
Use of_property_read_u32 instead of the generic of_get_property to simplify the code. In addition move the declaration of sysfreq into fsl_get_sys_freq because it's private to this function. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Scott Wood <oss@buserror.net>
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@ -77,13 +77,10 @@ phys_addr_t get_immrbase(void)
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EXPORT_SYMBOL(get_immrbase);
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static u32 sysfreq = -1;
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u32 fsl_get_sys_freq(void)
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{
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static u32 sysfreq = -1;
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struct device_node *soc;
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const u32 *prop;
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int size;
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if (sysfreq != -1)
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return sysfreq;
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@ -92,12 +89,9 @@ u32 fsl_get_sys_freq(void)
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if (!soc)
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return -1;
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prop = of_get_property(soc, "clock-frequency", &size);
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if (!prop || size != sizeof(*prop) || *prop == 0)
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prop = of_get_property(soc, "bus-frequency", &size);
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if (prop && size == sizeof(*prop))
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sysfreq = *prop;
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of_property_read_u32(soc, "clock-frequency", &sysfreq);
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if (sysfreq == -1 || !sysfreq)
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of_property_read_u32(soc, "bus-frequency", &sysfreq);
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of_node_put(soc);
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return sysfreq;
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