From 0fc197c7cb3b1139fccb3b92e8db19a93f81f6fb Mon Sep 17 00:00:00 2001 From: Lorenzo Pieralisi Date: Tue, 26 May 2015 13:06:57 +0100 Subject: 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 Acked-by: Sudeep Holla Tested-by: Jisheng Zhang Cc: Mark Rutland --- drivers/firmware/psci.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/firmware/psci.c') diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c index 384224320455..442a42b5cece 100644 --- a/drivers/firmware/psci.c +++ b/drivers/firmware/psci.c @@ -392,6 +392,7 @@ out_put_node: static const struct of_device_id const 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}, {}, }; -- cgit v1.2.3