GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/drivers/power/domain/sandbox-power-domain.c

@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2016, NVIDIA CORPORATION.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <power-domain-uclass.h>
+#include <asm/io.h>
+#include <asm/power-domain.h>
+
+#define SANDBOX_POWER_DOMAINS 3
+
+struct sandbox_power_domain {
+	bool on[SANDBOX_POWER_DOMAINS];
+};
+
+static int sandbox_power_domain_request(struct power_domain *power_domain)
+{
+	debug("%s(power_domain=%p)\n", __func__, power_domain);
+
+	if (power_domain->id >= SANDBOX_POWER_DOMAINS)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int sandbox_power_domain_free(struct power_domain *power_domain)
+{
+	debug("%s(power_domain=%p)\n", __func__, power_domain);
+
+	return 0;
+}
+
+static int sandbox_power_domain_on(struct power_domain *power_domain)
+{
+	struct sandbox_power_domain *sbr = dev_get_priv(power_domain->dev);
+
+	debug("%s(power_domain=%p)\n", __func__, power_domain);
+
+	sbr->on[power_domain->id] = true;
+
+	return 0;
+}
+
+static int sandbox_power_domain_off(struct power_domain *power_domain)
+{
+	struct sandbox_power_domain *sbr = dev_get_priv(power_domain->dev);
+
+	debug("%s(power_domain=%p)\n", __func__, power_domain);
+
+	sbr->on[power_domain->id] = false;
+
+	return 0;
+}
+
+static int sandbox_power_domain_bind(struct udevice *dev)
+{
+	debug("%s(dev=%p)\n", __func__, dev);
+
+	return 0;
+}
+
+static int sandbox_power_domain_probe(struct udevice *dev)
+{
+	debug("%s(dev=%p)\n", __func__, dev);
+
+	return 0;
+}
+
+static const struct udevice_id sandbox_power_domain_ids[] = {
+	{ .compatible = "sandbox,power-domain" },
+	{ }
+};
+
+struct power_domain_ops sandbox_power_domain_ops = {
+	.request = sandbox_power_domain_request,
+	.free = sandbox_power_domain_free,
+	.on = sandbox_power_domain_on,
+	.off = sandbox_power_domain_off,
+};
+
+U_BOOT_DRIVER(sandbox_power_domain) = {
+	.name = "sandbox_power_domain",
+	.id = UCLASS_POWER_DOMAIN,
+	.of_match = sandbox_power_domain_ids,
+	.bind = sandbox_power_domain_bind,
+	.probe = sandbox_power_domain_probe,
+	.priv_auto_alloc_size = sizeof(struct sandbox_power_domain),
+	.ops = &sandbox_power_domain_ops,
+};
+
+int sandbox_power_domain_query(struct udevice *dev, unsigned long id)
+{
+	struct sandbox_power_domain *sbr = dev_get_priv(dev);
+
+	debug("%s(dev=%p, id=%ld)\n", __func__, dev, id);
+
+	if (id >= SANDBOX_POWER_DOMAINS)
+		return -EINVAL;
+
+	return sbr->on[id];
+}