Thread (66 messages) flat view 66 messages, 4 authors, 2011-03-01
STALE5683d

[PATCH 4/5] ARM: scu: Move register defines to header file

From: Santosh Shilimkar <hidden>
Date: 2011-02-10 14:49:19
Also in: linux-omap

-----Original Message-----
From: Russell King - ARM Linux [mailto:linux at arm.linux.org.uk]
Sent: Monday, February 07, 2011 3:48 PM
To: Santosh Shilimkar
Cc: catalin.marinas at arm.com; linus.ml.walleij at gmail.com; linux-
omap at vger.kernel.org; linux-arm-kernel at lists.infradead.org;
ccross at android.com
Subject: Re: [PATCH 4/5] ARM: scu: Move register defines to header
file
[....]
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quoted
8<------
Subject: [PATCH] ARM: smp: add function to set WFI low-power
mode
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for SMP CPUs

Add a function to set the SCU low-power mode for SMP CPUs.  This
centralizes this functionality rather than having to expose the
SCU register definitions to each platform.

Signed-off-by: Russell King <redacted>
---
 arch/arm/include/asm/smp_scu.h |    5 +++++
 arch/arm/kernel/smp_scu.c      |   24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 0 deletions(-)
[...]
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+int scu_power_mode(void __iomem *scu_base, unsigned int mode)
+{
+	unsigned int val;
+	int cpu = smp_processor_id();
+	int shift;
shift is unused with this version now so I am removing it.
Yes, I noticed that - it's gone in the version I merged into my
tree.
This patch will need below update so that the smp_scu.h
header can be included from assembly files. Will you
fold this into your patch or you want me to
send below as separate patch ?
diff --git a/arch/arm/include/asm/smp_scu.h
b/arch/arm/include/asm/smp_scu.h
index 800860d..8895c6c 100644
--- a/arch/arm/include/asm/smp_scu.h
+++ b/arch/arm/include/asm/smp_scu.h
@@ -5,8 +5,11 @@
 #define SCU_PM_DORMANT	2
 #define SCU_PM_POWEROFF	3

+#ifndef __ASSEMBLER__
+
 unsigned int scu_get_core_count(void __iomem *);
 void scu_enable(void __iomem *);
 int scu_power_mode(void __iomem *, unsigned int);

 #endif
+#endif
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