From 61f5ddcb7a997f7b7bca3680cd6f67e60e616841 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 13 Jul 2016 13:45:31 -0600 Subject: Add a power domain framework/uclass Many SoCs allow power to be applied to or removed from portions of the SoC (power domains). This may be used to save power. This API provides the means to control such power management hardware. Signed-off-by: Stephen Warren Acked-by: Simon Glass --- test/dm/Makefile | 1 + test/dm/power-domain.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 47 insertions(+) create mode 100644 test/dm/power-domain.c (limited to 'test') diff --git a/test/dm/Makefile b/test/dm/Makefile index cad3374e43..1885e17c38 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_LED) += led.o obj-$(CONFIG_DM_MAILBOX) += mailbox.o obj-$(CONFIG_DM_MMC) += mmc.o obj-$(CONFIG_DM_PCI) += pci.o +obj-$(CONFIG_POWER_DOMAIN) += power-domain.o obj-$(CONFIG_RAM) += ram.o obj-y += regmap.o obj-$(CONFIG_REMOTEPROC) += remoteproc.o diff --git a/test/dm/power-domain.c b/test/dm/power-domain.c new file mode 100644 index 0000000000..379a8fa3d6 --- /dev/null +++ b/test/dm/power-domain.c @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include +#include +#include +#include +#include + +/* This must match the specifier for power-domains in the DT node */ +#define TEST_POWER_DOMAIN 2 + +static int dm_test_power_domain(struct unit_test_state *uts) +{ + struct udevice *dev_power_domain; + struct udevice *dev_test; + + ut_assertok(uclass_get_device_by_name(UCLASS_POWER_DOMAIN, + "power-domain", + &dev_power_domain)); + ut_asserteq(0, sandbox_power_domain_query(dev_power_domain, 0)); + ut_asserteq(0, sandbox_power_domain_query(dev_power_domain, + TEST_POWER_DOMAIN)); + + ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "power-domain-test", + &dev_test)); + ut_assertok(sandbox_power_domain_test_get(dev_test)); + + ut_assertok(sandbox_power_domain_test_on(dev_test)); + ut_asserteq(0, sandbox_power_domain_query(dev_power_domain, 0)); + ut_asserteq(1, sandbox_power_domain_query(dev_power_domain, + TEST_POWER_DOMAIN)); + + ut_assertok(sandbox_power_domain_test_off(dev_test)); + ut_asserteq(0, sandbox_power_domain_query(dev_power_domain, 0)); + ut_asserteq(0, sandbox_power_domain_query(dev_power_domain, + TEST_POWER_DOMAIN)); + + ut_assertok(sandbox_power_domain_test_free(dev_test)); + + return 0; +} +DM_TEST(dm_test_power_domain, DM_TESTF_SCAN_FDT); -- cgit v1.2.3