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ARM: pxa: only save/restore registers when pm functions are defined
Reported-and-tested-by: Sven Neumann <s.neumann@raumfeld.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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1 changed files with 2 additions and 2 deletions
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@ -33,7 +33,7 @@ int pxa_pm_enter(suspend_state_t state)
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#endif
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#endif
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/* skip registers saving for standby */
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/* skip registers saving for standby */
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if (state != PM_SUSPEND_STANDBY) {
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if (state != PM_SUSPEND_STANDBY && pxa_cpu_pm_fns->save) {
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pxa_cpu_pm_fns->save(sleep_save);
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pxa_cpu_pm_fns->save(sleep_save);
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/* before sleeping, calculate and save a checksum */
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/* before sleeping, calculate and save a checksum */
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for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++)
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for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++)
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@ -44,7 +44,7 @@ int pxa_pm_enter(suspend_state_t state)
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pxa_cpu_pm_fns->enter(state);
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pxa_cpu_pm_fns->enter(state);
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cpu_init();
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cpu_init();
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if (state != PM_SUSPEND_STANDBY) {
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if (state != PM_SUSPEND_STANDBY && pxa_cpu_pm_fns->restore) {
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/* after sleeping, validate the checksum */
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/* after sleeping, validate the checksum */
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for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++)
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for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++)
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checksum += sleep_save[i];
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checksum += sleep_save[i];
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