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authorTodd Poynor <tpoynor@mvista.com>2005-10-28 16:25:01 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-10-28 16:25:01 +0100
commit80a18573cea2e6d8e95abe4d42bfc5f97761999a (patch)
tree169773f6b106c22e9df10d14a14f538299915b51 /include
parent917f68f8163eb877a6d71c5b446ee236645c2944 (diff)
downloadop-kernel-dev-80a18573cea2e6d8e95abe4d42bfc5f97761999a.zip
op-kernel-dev-80a18573cea2e6d8e95abe4d42bfc5f97761999a.tar.gz
[ARM] 2787/2: PXA27x low power modes support
Patch from Todd Poynor Add symbols for PXA2xx PWRMODE register M field that selects low-power mode, replace unadorned constants. Honor power mode parameter of pxa_cpu_suspend(mode), no longer force to 3 (sleep). Full Deep Sleep low-power mode support for PXA27x is pending generic PM interfaces to select more than 2 suspend-to-RAM-style power modes, but this is expected soon. This can be hardcoded in the meantime by replacing the pxa_cpu_suspend() parameter value. From David Burrage and Todd Poynor. Try #2 removes one of the register copies and moves the code to save the pxa_cpu_suspend parameter to immediately surround the call that requires the parameter value be preserved. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/asm-arm/arch-pxa/pxa-regs.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h
index 3af7165..a6a34ed 100644
--- a/include/asm-arm/arch-pxa/pxa-regs.h
+++ b/include/asm-arm/arch-pxa/pxa-regs.h
@@ -2282,4 +2282,11 @@
#endif
+/* PWRMODE register M field values */
+
+#define PWRMODE_IDLE 0x1
+#define PWRMODE_STANDBY 0x2
+#define PWRMODE_SLEEP 0x3
+#define PWRMODE_DEEPSLEEP 0x7
+
#endif
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