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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Intel PMC command
- *
- * Copyright 2019 Google LLC
- */
- #include <common.h>
- #include <command.h>
- #include <dm.h>
- #include <power/acpi_pmc.h>
- static int get_pmc_dev(struct udevice **devp)
- {
- struct udevice *dev;
- int ret;
- ret = uclass_first_device_err(UCLASS_ACPI_PMC, &dev);
- if (ret) {
- printf("Could not find device (err=%d)\n", ret);
- return ret;
- }
- ret = pmc_init(dev);
- if (ret) {
- printf("Could not init device (err=%d)\n", ret);
- return ret;
- }
- *devp = dev;
- return 0;
- }
- static int do_pmc_init(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- struct udevice *dev;
- int ret;
- ret = get_pmc_dev(&dev);
- if (ret)
- return CMD_RET_FAILURE;
- return 0;
- }
- static int do_pmc_info(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- struct udevice *dev;
- int ret;
- ret = get_pmc_dev(&dev);
- if (ret)
- return CMD_RET_FAILURE;
- pmc_dump_info(dev);
- return 0;
- }
- static struct cmd_tbl cmd_pmc_sub[] = {
- U_BOOT_CMD_MKENT(init, 0, 1, do_pmc_init, "", ""),
- U_BOOT_CMD_MKENT(info, 0, 1, do_pmc_info, "", ""),
- };
- static int do_pmc(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
- {
- const struct cmd_tbl *cp;
- if (argc < 2) /* no subcommand */
- return cmd_usage(cmdtp);
- cp = find_cmd_tbl(argv[1], &cmd_pmc_sub[0], ARRAY_SIZE(cmd_pmc_sub));
- if (!cp)
- return CMD_RET_USAGE;
- return cp->cmd(cmdtp, flag, argc, argv);
- }
- U_BOOT_CMD(
- pmc, 2, 1, do_pmc, "Power-management controller info",
- "info - read state and show info about the PMC\n"
- "pmc init - read state from the PMC\n"
- );
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