[PATCH] powerpc: Allow for ppc_md restart, power_off, and halt to be NULL
On a number of embedded reference boards there isn't always a way to reset, power_off, or halt the board. Rather than having each board implement a spin loop just let the generic code do it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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@ -100,6 +100,7 @@ void machine_shutdown(void)
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void machine_restart(char *cmd)
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{
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machine_shutdown();
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if (ppc_md.restart)
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ppc_md.restart(cmd);
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#ifdef CONFIG_SMP
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smp_send_stop();
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@ -112,6 +113,7 @@ void machine_restart(char *cmd)
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void machine_power_off(void)
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{
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machine_shutdown();
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if (ppc_md.power_off)
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ppc_md.power_off();
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#ifdef CONFIG_SMP
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smp_send_stop();
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@ -129,6 +131,7 @@ EXPORT_SYMBOL_GPL(pm_power_off);
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void machine_halt(void)
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{
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machine_shutdown();
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if (ppc_md.halt)
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ppc_md.halt();
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#ifdef CONFIG_SMP
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smp_send_stop();
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