ARM: 5975/1: AT91 slow-clock suspend: don't wait when turning PLLs off
From: Julien Langer <julien.langer@gmail.com> AT91: when turning off the PLLs during suspend, don't wait for the lock flag to be set. Previously the code would always run into the loop limitation of 1000 iterations because the flag is never set when turning the PLLs off. Comments from Anders Larsen: (in http://marc.info/?l=linux-kernel&m=127058929724193&w=2) Signed-off-by: Julien Langer <julien.langer@gmail.com> Signed-off-by: Anders Larsen <al@alarsen.net> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -175,8 +175,6 @@ ENTRY(at91_slow_clock)
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orr r3, r3, #(1 << 29) /* bit 29 always set */
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str r3, [r1, #(AT91_CKGR_PLLAR - AT91_PMC)]
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wait_pllalock
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/* Save PLLB setting and disable it */
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ldr r3, [r1, #(AT91_CKGR_PLLBR - AT91_PMC)]
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str r3, .saved_pllbr
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@ -184,8 +182,6 @@ ENTRY(at91_slow_clock)
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mov r3, #AT91_PMC_PLLCOUNT
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str r3, [r1, #(AT91_CKGR_PLLBR - AT91_PMC)]
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wait_pllblock
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/* Turn off the main oscillator */
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ldr r3, [r1, #(AT91_CKGR_MOR - AT91_PMC)]
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bic r3, r3, #AT91_PMC_MOSCEN
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