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authorStephen Warren <swarren@nvidia.com>2016-07-13 13:45:31 -0600
committerSimon Glass <sjg@chromium.org>2016-07-27 16:29:56 -0600
commit61f5ddcb7a997f7b7bca3680cd6f67e60e616841 (patch)
treeca5dcfb1d2335fa819cc7e36ea6295a6d12a4898 /test
parent1e2b3ef8653417f296ee23f32c28abfc086529dd (diff)
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 <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'test')
-rw-r--r--test/dm/Makefile1
-rw-r--r--test/dm/power-domain.c46
2 files changed, 47 insertions, 0 deletions
diff --git a/test/dm/Makefile b/test/dm/Makefile
index cad3374e43d..1885e17c38d 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 00000000000..379a8fa3d6e
--- /dev/null
+++ b/test/dm/power-domain.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2016, NVIDIA CORPORATION.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/test.h>
+#include <asm/power-domain.h>
+#include <test/ut.h>
+
+/* 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);