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authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2015-05-26 13:06:57 +0100
committerAlex Shi <alex.shi@linaro.org>2016-01-20 19:26:33 +0800
commit0410a0531eea2d51eedcf3b3b1f007601b6589ca (patch)
tree99adcfcbc7ade0473330e26e940d4b20706a4d91 /drivers/firmware
parent15cc4eff734063194901f01b4922027dbf39a098 (diff)
drivers: firmware: psci: add PSCI v1.0 DT bindings
PSCI 1.0 is designed to be fully compliant to the PSCI 0.2 specification, with minor differences that are described in the PSCI specification. In particular, PSCI v1.0 augments the specification with a new power_state format (extended stateid - probeable through the PSCI_FEATURES call), changes some function return codes and functions usage requirements wrt PSCI 0.2. These changes mean that 1.0 vs 0.2 compliancy should be enforced through a DT compatible string that allows firmware to specify 1.0 only compliancy so that older kernels are prevented from using PSCI 1.0 FW implementations in a non-compatible way (eg by calling a 1.0 FW implementation and expecting 0.2 behaviour). This patch adds PSCI 1.0 DT bindings and related compatible string. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Tested-by: Jisheng Zhang <jszhang@marvell.com> Cc: Mark Rutland <mark.rutland@arm.com> (cherry picked from commit 0fc197c7cb3b1139fccb3b92e8db19a93f81f6fb) Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/psci.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c
index 9f274eb30a63..c006ca92cb8b 100644
--- a/drivers/firmware/psci.c
+++ b/drivers/firmware/psci.c
@@ -392,6 +392,7 @@ out_put_node:
static const struct of_device_id psci_of_match[] __initconst = {
{ .compatible = "arm,psci", .data = psci_0_1_init},
{ .compatible = "arm,psci-0.2", .data = psci_0_2_init},
+ { .compatible = "arm,psci-1.0", .data = psci_0_2_init},
{},
};