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authorOlof Johansson <olof@lixom.net>2015-10-22 10:02:10 -0700
committerOlof Johansson <olof@lixom.net>2015-10-22 10:02:10 -0700
commit825294cded91f3df99af864e4a67664cd1ccf911 (patch)
tree8f42e8d12c0c0fd25fe1943a1820e2fcc878833c /Documentation
parent73ebb85444b0472d90bb70a1a9e6b5df3f92c14c (diff)
parentfaf7ec4a92c0231d1079177095077c162eb9b466 (diff)
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Merge tag 'firmware/psci-1.0' of git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux into next/drivers
This pull request contains patches that enable PSCI 1.0 firmware features for arm/arm64 platforms: - Lorenzo Pieralisi adds support for the PSCI_FEATURES call, manages various 1.0 specifications updates (power state id and functions return values) and provides PSCI v1.0 DT bindings - Sudeep Holla implements PSCI v1.0 system suspend support to enable PSCI based suspend-to-RAM * tag 'firmware/psci-1.0' of git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux: drivers: firmware: psci: add system suspend support drivers: firmware: psci: define more generic PSCI_FN_NATIVE macro drivers: firmware: psci: add PSCI v1.0 DT bindings drivers: firmware: psci: add extended stateid power_state support drivers: firmware: psci: add PSCI_FEATURES call drivers: firmware: psci: move power_state handling to generic code drivers: firmware: psci: add INVALID_ADDRESS return value Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/arm/psci.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/psci.txt b/Documentation/devicetree/bindings/arm/psci.txt
index 5aa40ede0e99..a9adab84e2fe 100644
--- a/Documentation/devicetree/bindings/arm/psci.txt
+++ b/Documentation/devicetree/bindings/arm/psci.txt
@@ -31,6 +31,10 @@ Main node required properties:
support, but are permitted to be present for compatibility with
existing software when "arm,psci" is later in the compatible list.
+ * "arm,psci-1.0" : for implementations complying to PSCI 1.0. PSCI 1.0 is
+ backward compatible with PSCI 0.2 with minor specification updates,
+ as defined in the PSCI specification[2].
+
- method : The method of calling the PSCI firmware. Permitted
values are:
@@ -100,3 +104,5 @@ Case 3: PSCI v0.2 and PSCI v0.1.
[1] Kernel documentation - ARM idle states bindings
Documentation/devicetree/bindings/arm/idle-states.txt
+[2] Power State Coordination Interface (PSCI) specification
+ http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf