Lines Matching +full:tegra186 +full:- +full:pmc
1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/soc/tegra/pmc.c
6 * Copyright (c) 2018-2024, NVIDIA CORPORATION. All rights reserved.
12 #define pr_fmt(fmt) "tegra-pmc: " fmt
14 #include <linux/arm-smccc.h>
16 #include <linux/clk-provider.h>
18 #include <linux/clk/clk-conf.h>
37 #include <linux/pinctrl/pinconf-generic.h>
55 #include <soc/tegra/pmc.h>
57 #include <dt-bindings/interrupt-controller/arm-gic.h>
58 #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
59 #include <dt-bindings/gpio/tegra186-gpio.h>
60 #include <dt-bindings/gpio/tegra194-gpio.h>
61 #include <dt-bindings/gpio/tegra234-gpio.h>
62 #include <dt-bindings/soc/tegra-pmc.h>
178 /* Tegra186 and later */
198 /* for secure PMC */
270 struct tegra_pmc *pmc; member
358 void (*init)(struct tegra_pmc *pmc);
359 void (*setup_irq_polarity)(struct tegra_pmc *pmc,
362 void (*set_wake_filters)(struct tegra_pmc *pmc);
365 int (*powergate_set)(struct tegra_pmc *pmc, unsigned int id,
392 * struct tegra_pmc - NVIDIA Tegra PMC
393 * @dev: pointer to PMC device structure
400 * @tz_only: flag specifying if the PMC can only be accessed via TrustZone
408 * @corereq_high: core power request is active-high
409 * @sysclkreq_high: system clock request is active-high
416 * @pctl_dev: pin controller exposed by the PMC
417 * @domain: IRQ domain provided by the PMC
421 * @wake_type_level_map: Bitmap indicating level type for non-dual edge wakes
422 * @wake_type_dual_edge_map: Bitmap indicating if a wake is dual-edge or not
472 static struct tegra_pmc *pmc = &(struct tegra_pmc) { variable
483 static u32 tegra_pmc_readl(struct tegra_pmc *pmc, unsigned long offset) in tegra_pmc_readl() argument
487 if (pmc->tz_only) { in tegra_pmc_readl()
491 if (pmc->dev) in tegra_pmc_readl()
492 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n", in tegra_pmc_readl()
502 return readl(pmc->base + offset); in tegra_pmc_readl()
505 static void tegra_pmc_writel(struct tegra_pmc *pmc, u32 value, in tegra_pmc_writel() argument
510 if (pmc->tz_only) { in tegra_pmc_writel()
514 if (pmc->dev) in tegra_pmc_writel()
515 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n", in tegra_pmc_writel()
522 writel(value, pmc->base + offset); in tegra_pmc_writel()
526 static u32 tegra_pmc_scratch_readl(struct tegra_pmc *pmc, unsigned long offset) in tegra_pmc_scratch_readl() argument
528 if (pmc->tz_only) in tegra_pmc_scratch_readl()
529 return tegra_pmc_readl(pmc, offset); in tegra_pmc_scratch_readl()
531 return readl(pmc->scratch + offset); in tegra_pmc_scratch_readl()
534 static void tegra_pmc_scratch_writel(struct tegra_pmc *pmc, u32 value, in tegra_pmc_scratch_writel() argument
537 if (pmc->tz_only) in tegra_pmc_scratch_writel()
538 tegra_pmc_writel(pmc, value, offset); in tegra_pmc_scratch_writel()
540 writel(value, pmc->scratch + offset); in tegra_pmc_scratch_writel()
550 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps) in tegra_powergate_state()
551 return (tegra_pmc_readl(pmc, GPU_RG_CNTRL) & 0x1) == 0; in tegra_powergate_state()
553 return (tegra_pmc_readl(pmc, PWRGATE_STATUS) & BIT(id)) != 0; in tegra_powergate_state()
556 static inline bool tegra_powergate_is_valid(struct tegra_pmc *pmc, int id) in tegra_powergate_is_valid() argument
558 return (pmc->soc && pmc->soc->powergates[id]); in tegra_powergate_is_valid()
561 static inline bool tegra_powergate_is_available(struct tegra_pmc *pmc, int id) in tegra_powergate_is_available() argument
563 return test_bit(id, pmc->powergates_available); in tegra_powergate_is_available()
566 static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name) in tegra_powergate_lookup() argument
570 if (!pmc || !pmc->soc || !name) in tegra_powergate_lookup()
571 return -EINVAL; in tegra_powergate_lookup()
573 for (i = 0; i < pmc->soc->num_powergates; i++) { in tegra_powergate_lookup()
574 if (!tegra_powergate_is_valid(pmc, i)) in tegra_powergate_lookup()
577 if (!strcmp(name, pmc->soc->powergates[i])) in tegra_powergate_lookup()
581 return -ENODEV; in tegra_powergate_lookup()
584 static int tegra20_powergate_set(struct tegra_pmc *pmc, unsigned int id, in tegra20_powergate_set() argument
592 * As per TRM documentation, the toggle command will be dropped by PMC in tegra20_powergate_set()
593 * if there is contention with a HW-initiated toggling (i.e. CPU core in tegra20_powergate_set()
594 * power-gated), the command should be retried in that case. in tegra20_powergate_set()
597 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE); in tegra20_powergate_set()
599 /* wait for PMC to execute the command */ in tegra20_powergate_set()
602 } while (ret == -ETIMEDOUT && retries--); in tegra20_powergate_set()
607 static inline bool tegra_powergate_toggle_ready(struct tegra_pmc *pmc) in tegra_powergate_toggle_ready() argument
609 return !(tegra_pmc_readl(pmc, PWRGATE_TOGGLE) & PWRGATE_TOGGLE_START); in tegra_powergate_toggle_ready()
612 static int tegra114_powergate_set(struct tegra_pmc *pmc, unsigned int id, in tegra114_powergate_set() argument
618 /* wait while PMC power gating is contended */ in tegra114_powergate_set()
619 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status, in tegra114_powergate_set()
624 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE); in tegra114_powergate_set()
626 /* wait for PMC to accept the command */ in tegra114_powergate_set()
627 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status, in tegra114_powergate_set()
632 /* wait for PMC to execute the command */ in tegra114_powergate_set()
642 * tegra_powergate_set() - set the state of a partition
643 * @pmc: power management controller
647 static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id, in tegra_powergate_set() argument
652 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps) in tegra_powergate_set()
653 return -EINVAL; in tegra_powergate_set()
655 mutex_lock(&pmc->powergates_lock); in tegra_powergate_set()
658 mutex_unlock(&pmc->powergates_lock); in tegra_powergate_set()
662 err = pmc->soc->powergate_set(pmc, id, new_state); in tegra_powergate_set()
664 mutex_unlock(&pmc->powergates_lock); in tegra_powergate_set()
669 static int __tegra_powergate_remove_clamping(struct tegra_pmc *pmc, in __tegra_powergate_remove_clamping() argument
674 mutex_lock(&pmc->powergates_lock); in __tegra_powergate_remove_clamping()
681 if (pmc->soc->has_gpu_clamps) { in __tegra_powergate_remove_clamping()
682 tegra_pmc_writel(pmc, 0, GPU_RG_CNTRL); in __tegra_powergate_remove_clamping()
698 tegra_pmc_writel(pmc, mask, REMOVE_CLAMPING); in __tegra_powergate_remove_clamping()
701 mutex_unlock(&pmc->powergates_lock); in __tegra_powergate_remove_clamping()
712 for (i = 0; i < pg->num_clks; i++) { in tegra_powergate_prepare_clocks()
713 pg->clk_rates[i] = clk_get_rate(pg->clks[i]); in tegra_powergate_prepare_clocks()
715 if (!pg->clk_rates[i]) { in tegra_powergate_prepare_clocks()
716 err = -EINVAL; in tegra_powergate_prepare_clocks()
720 if (pg->clk_rates[i] <= safe_rate) in tegra_powergate_prepare_clocks()
729 err = clk_set_rate(pg->clks[i], safe_rate); in tegra_powergate_prepare_clocks()
737 while (i--) in tegra_powergate_prepare_clocks()
738 clk_set_rate(pg->clks[i], pg->clk_rates[i]); in tegra_powergate_prepare_clocks()
748 for (i = 0; i < pg->num_clks; i++) { in tegra_powergate_unprepare_clocks()
749 err = clk_set_rate(pg->clks[i], pg->clk_rates[i]); in tegra_powergate_unprepare_clocks()
761 for (i = 0; i < pg->num_clks; i++) in tegra_powergate_disable_clocks()
762 clk_disable_unprepare(pg->clks[i]); in tegra_powergate_disable_clocks()
770 for (i = 0; i < pg->num_clks; i++) { in tegra_powergate_enable_clocks()
771 err = clk_prepare_enable(pg->clks[i]); in tegra_powergate_enable_clocks()
779 while (i--) in tegra_powergate_enable_clocks()
780 clk_disable_unprepare(pg->clks[i]); in tegra_powergate_enable_clocks()
790 err = reset_control_assert(pg->reset); in tegra_powergate_power_up()
796 err = tegra_powergate_set(pg->pmc, pg->id, true); in tegra_powergate_power_up()
812 err = __tegra_powergate_remove_clamping(pg->pmc, pg->id); in tegra_powergate_power_up()
818 err = reset_control_deassert(pg->reset); in tegra_powergate_power_up()
824 if (pg->pmc->soc->needs_mbist_war) in tegra_powergate_power_up()
825 err = tegra210_clk_handle_mbist_war(pg->id); in tegra_powergate_power_up()
846 tegra_powergate_set(pg->pmc, pg->id, false); in tegra_powergate_power_up()
865 err = reset_control_assert(pg->reset); in tegra_powergate_power_down()
875 err = tegra_powergate_set(pg->pmc, pg->id, false); in tegra_powergate_power_down()
888 reset_control_deassert(pg->reset); in tegra_powergate_power_down()
903 struct device *dev = pg->pmc->dev; in tegra_genpd_power_on()
909 pg->genpd.name, err); in tegra_genpd_power_on()
913 reset_control_release(pg->reset); in tegra_genpd_power_on()
922 struct device *dev = pg->pmc->dev; in tegra_genpd_power_off()
925 err = reset_control_acquire(pg->reset); in tegra_genpd_power_off()
928 pg->genpd.name, err); in tegra_genpd_power_off()
935 pg->genpd.name, err); in tegra_genpd_power_off()
936 reset_control_release(pg->reset); in tegra_genpd_power_off()
943 * tegra_powergate_power_on() - power on partition
948 if (!tegra_powergate_is_available(pmc, id)) in tegra_powergate_power_on()
949 return -EINVAL; in tegra_powergate_power_on()
951 return tegra_powergate_set(pmc, id, true); in tegra_powergate_power_on()
956 * tegra_powergate_power_off() - power off partition
961 if (!tegra_powergate_is_available(pmc, id)) in tegra_powergate_power_off()
962 return -EINVAL; in tegra_powergate_power_off()
964 return tegra_powergate_set(pmc, id, false); in tegra_powergate_power_off()
969 * tegra_powergate_is_powered() - check if partition is powered
970 * @pmc: power management controller
973 static int tegra_powergate_is_powered(struct tegra_pmc *pmc, unsigned int id) in tegra_powergate_is_powered() argument
975 if (!tegra_powergate_is_valid(pmc, id)) in tegra_powergate_is_powered()
976 return -EINVAL; in tegra_powergate_is_powered()
982 * tegra_powergate_remove_clamping() - remove power clamps for partition
987 if (!tegra_powergate_is_available(pmc, id)) in tegra_powergate_remove_clamping()
988 return -EINVAL; in tegra_powergate_remove_clamping()
990 return __tegra_powergate_remove_clamping(pmc, id); in tegra_powergate_remove_clamping()
995 * tegra_powergate_sequence_power_up() - power up partition
1008 if (!tegra_powergate_is_available(pmc, id)) in tegra_powergate_sequence_power_up()
1009 return -EINVAL; in tegra_powergate_sequence_power_up()
1013 return -ENOMEM; in tegra_powergate_sequence_power_up()
1015 pg->clk_rates = kzalloc(sizeof(*pg->clk_rates), GFP_KERNEL); in tegra_powergate_sequence_power_up()
1016 if (!pg->clk_rates) { in tegra_powergate_sequence_power_up()
1017 kfree(pg->clks); in tegra_powergate_sequence_power_up()
1018 return -ENOMEM; in tegra_powergate_sequence_power_up()
1021 pg->id = id; in tegra_powergate_sequence_power_up()
1022 pg->clks = &clk; in tegra_powergate_sequence_power_up()
1023 pg->num_clks = 1; in tegra_powergate_sequence_power_up()
1024 pg->reset = rst; in tegra_powergate_sequence_power_up()
1025 pg->pmc = pmc; in tegra_powergate_sequence_power_up()
1029 dev_err(pmc->dev, "failed to turn on partition %d: %d\n", id, in tegra_powergate_sequence_power_up()
1032 kfree(pg->clk_rates); in tegra_powergate_sequence_power_up()
1040 * tegra_get_cpu_powergate_id() - convert from CPU ID to partition ID
1041 * @pmc: power management controller
1047 static int tegra_get_cpu_powergate_id(struct tegra_pmc *pmc, in tegra_get_cpu_powergate_id() argument
1050 if (pmc->soc && cpuid < pmc->soc->num_cpu_powergates) in tegra_get_cpu_powergate_id()
1051 return pmc->soc->cpu_powergates[cpuid]; in tegra_get_cpu_powergate_id()
1053 return -EINVAL; in tegra_get_cpu_powergate_id()
1057 * tegra_pmc_cpu_is_powered() - check if CPU partition is powered
1064 id = tegra_get_cpu_powergate_id(pmc, cpuid); in tegra_pmc_cpu_is_powered()
1068 return tegra_powergate_is_powered(pmc, id); in tegra_pmc_cpu_is_powered()
1072 * tegra_pmc_cpu_power_on() - power on CPU partition
1079 id = tegra_get_cpu_powergate_id(pmc, cpuid); in tegra_pmc_cpu_power_on()
1083 return tegra_powergate_set(pmc, id, true); in tegra_pmc_cpu_power_on()
1087 * tegra_pmc_cpu_remove_clamping() - remove power clamps for CPU partition
1094 id = tegra_get_cpu_powergate_id(pmc, cpuid); in tegra_pmc_cpu_remove_clamping()
1105 value = tegra_pmc_scratch_readl(pmc, pmc->soc->regs->scratch0); in tegra_pmc_program_reboot_reason()
1115 if (strcmp(cmd, "forced-recovery") == 0) in tegra_pmc_program_reboot_reason()
1119 tegra_pmc_scratch_writel(pmc, value, pmc->soc->regs->scratch0); in tegra_pmc_program_reboot_reason()
1140 value = tegra_pmc_readl(pmc, PMC_CNTRL); in tegra_pmc_restart()
1142 tegra_pmc_writel(pmc, value, PMC_CNTRL); in tegra_pmc_restart()
1162 tegra_pmc_writel(pmc, go_to_charger_mode, PMC_SCRATCH37); in tegra_pmc_power_off_handler()
1175 seq_printf(s, "------------------\n"); in powergate_show()
1177 for (i = 0; i < pmc->soc->num_powergates; i++) { in powergate_show()
1178 status = tegra_powergate_is_powered(pmc, i); in powergate_show()
1182 seq_printf(s, " %9s %7s\n", pmc->soc->powergates[i], in powergate_show()
1200 return -ENODEV; in tegra_powergate_of_get_clks()
1202 pg->clks = kcalloc(count, sizeof(clk), GFP_KERNEL); in tegra_powergate_of_get_clks()
1203 if (!pg->clks) in tegra_powergate_of_get_clks()
1204 return -ENOMEM; in tegra_powergate_of_get_clks()
1206 pg->clk_rates = kcalloc(count, sizeof(*pg->clk_rates), GFP_KERNEL); in tegra_powergate_of_get_clks()
1207 if (!pg->clk_rates) { in tegra_powergate_of_get_clks()
1208 kfree(pg->clks); in tegra_powergate_of_get_clks()
1209 return -ENOMEM; in tegra_powergate_of_get_clks()
1213 pg->clks[i] = of_clk_get(np, i); in tegra_powergate_of_get_clks()
1214 if (IS_ERR(pg->clks[i])) { in tegra_powergate_of_get_clks()
1215 err = PTR_ERR(pg->clks[i]); in tegra_powergate_of_get_clks()
1220 pg->num_clks = count; in tegra_powergate_of_get_clks()
1225 while (i--) in tegra_powergate_of_get_clks()
1226 clk_put(pg->clks[i]); in tegra_powergate_of_get_clks()
1228 kfree(pg->clk_rates); in tegra_powergate_of_get_clks()
1229 kfree(pg->clks); in tegra_powergate_of_get_clks()
1237 struct device *dev = pg->pmc->dev; in tegra_powergate_of_get_resets()
1240 pg->reset = of_reset_control_array_get_exclusive_released(np); in tegra_powergate_of_get_resets()
1241 if (IS_ERR(pg->reset)) { in tegra_powergate_of_get_resets()
1242 err = PTR_ERR(pg->reset); in tegra_powergate_of_get_resets()
1247 err = reset_control_acquire(pg->reset); in tegra_powergate_of_get_resets()
1250 reset_control_put(pg->reset); in tegra_powergate_of_get_resets()
1256 static int tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np) in tegra_powergate_add() argument
1258 struct device *dev = pmc->dev; in tegra_powergate_add()
1265 return -ENOMEM; in tegra_powergate_add()
1267 id = tegra_powergate_lookup(pmc, np->name); in tegra_powergate_add()
1270 err = -ENODEV; in tegra_powergate_add()
1278 clear_bit(id, pmc->powergates_available); in tegra_powergate_add()
1280 pg->id = id; in tegra_powergate_add()
1281 pg->genpd.name = np->name; in tegra_powergate_add()
1282 pg->genpd.flags = GENPD_FLAG_NO_SYNC_STATE; in tegra_powergate_add()
1283 pg->genpd.power_off = tegra_genpd_power_off; in tegra_powergate_add()
1284 pg->genpd.power_on = tegra_genpd_power_on; in tegra_powergate_add()
1285 pg->pmc = pmc; in tegra_powergate_add()
1287 off = !tegra_powergate_is_powered(pmc, pg->id); in tegra_powergate_add()
1302 * If the power-domain is off, then ensure the resets are asserted. in tegra_powergate_add()
1303 * If the power-domain is on, then power down to ensure that when is in tegra_powergate_add()
1304 * it turned on the power-domain, clocks and resets are all in the in tegra_powergate_add()
1308 err = reset_control_assert(pg->reset); in tegra_powergate_add()
1317 pg->genpd.name, err); in tegra_powergate_add()
1323 * If PM_GENERIC_DOMAINS is not enabled, power-on in tegra_powergate_add()
1331 err = pm_genpd_init(&pg->genpd, NULL, true); in tegra_powergate_add()
1338 err = of_genpd_add_provider_simple(np, &pg->genpd); in tegra_powergate_add()
1345 dev_dbg(dev, "added PM domain %s\n", pg->genpd.name); in tegra_powergate_add()
1350 pm_genpd_remove(&pg->genpd); in tegra_powergate_add()
1353 reset_control_put(pg->reset); in tegra_powergate_add()
1356 while (pg->num_clks--) in tegra_powergate_add()
1357 clk_put(pg->clks[pg->num_clks]); in tegra_powergate_add()
1359 kfree(pg->clks); in tegra_powergate_add()
1362 set_bit(id, pmc->powergates_available); in tegra_powergate_add()
1372 return pmc->core_domain_state_synced; in tegra_pmc_core_domain_state_synced()
1382 opp = dev_pm_opp_find_level_ceil(&genpd->dev, &level); in tegra_pmc_core_pd_set_performance_state()
1384 dev_err(&genpd->dev, "failed to find OPP for level %u: %pe\n", in tegra_pmc_core_pd_set_performance_state()
1389 mutex_lock(&pmc->powergates_lock); in tegra_pmc_core_pd_set_performance_state()
1390 err = dev_pm_opp_set_opp(pmc->dev, opp); in tegra_pmc_core_pd_set_performance_state()
1391 mutex_unlock(&pmc->powergates_lock); in tegra_pmc_core_pd_set_performance_state()
1396 dev_err(&genpd->dev, "failed to set voltage to %duV: %d\n", in tegra_pmc_core_pd_set_performance_state()
1404 static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np) in tegra_pmc_core_pd_add() argument
1410 genpd = devm_kzalloc(pmc->dev, sizeof(*genpd), GFP_KERNEL); in tegra_pmc_core_pd_add()
1412 return -ENOMEM; in tegra_pmc_core_pd_add()
1414 genpd->name = "core"; in tegra_pmc_core_pd_add()
1415 genpd->flags = GENPD_FLAG_NO_SYNC_STATE; in tegra_pmc_core_pd_add()
1416 genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state; in tegra_pmc_core_pd_add()
1418 err = devm_pm_opp_set_regulators(pmc->dev, rname); in tegra_pmc_core_pd_add()
1420 return dev_err_probe(pmc->dev, err, in tegra_pmc_core_pd_add()
1425 dev_err(pmc->dev, "failed to init core genpd: %d\n", err); in tegra_pmc_core_pd_add()
1431 dev_err(pmc->dev, "failed to add core genpd: %d\n", err); in tegra_pmc_core_pd_add()
1443 static int tegra_powergate_init(struct tegra_pmc *pmc, in tegra_powergate_init() argument
1454 np = of_get_child_by_name(parent, "core-domain"); in tegra_powergate_init()
1456 err = tegra_pmc_core_pd_add(pmc, np); in tegra_powergate_init()
1467 err = tegra_powergate_add(pmc, child); in tegra_powergate_init()
1471 if (of_parse_phandle_with_args(child, "power-domains", in tegra_powergate_init()
1472 "#power-domain-cells", in tegra_powergate_init()
1494 reset_control_put(pg->reset); in tegra_powergate_remove()
1496 while (pg->num_clks--) in tegra_powergate_remove()
1497 clk_put(pg->clks[pg->num_clks]); in tegra_powergate_remove()
1499 kfree(pg->clks); in tegra_powergate_remove()
1501 set_bit(pg->id, pmc->powergates_available); in tegra_powergate_remove()
1527 np = of_get_child_by_name(parent, "core-domain"); in tegra_powergate_remove_all()
1535 tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id) in tegra_io_pad_find() argument
1539 for (i = 0; i < pmc->soc->num_io_pads; i++) in tegra_io_pad_find()
1540 if (pmc->soc->io_pads[i].id == id) in tegra_io_pad_find()
1541 return &pmc->soc->io_pads[i]; in tegra_io_pad_find()
1546 static int tegra_io_pad_prepare(struct tegra_pmc *pmc, in tegra_io_pad_prepare() argument
1554 if (pad->dpd == UINT_MAX) in tegra_io_pad_prepare()
1555 return -EINVAL; in tegra_io_pad_prepare()
1557 *request = pad->request; in tegra_io_pad_prepare()
1558 *status = pad->status; in tegra_io_pad_prepare()
1559 *mask = BIT(pad->dpd); in tegra_io_pad_prepare()
1561 if (pmc->clk) { in tegra_io_pad_prepare()
1562 rate = pmc->rate; in tegra_io_pad_prepare()
1564 dev_err(pmc->dev, "failed to get clock rate\n"); in tegra_io_pad_prepare()
1565 return -ENODEV; in tegra_io_pad_prepare()
1568 tegra_pmc_writel(pmc, DPD_SAMPLE_ENABLE, DPD_SAMPLE); in tegra_io_pad_prepare()
1573 tegra_pmc_writel(pmc, value, SEL_DPD_TIM); in tegra_io_pad_prepare()
1579 static int tegra_io_pad_poll(struct tegra_pmc *pmc, unsigned long offset, in tegra_io_pad_poll() argument
1587 value = tegra_pmc_readl(pmc, offset); in tegra_io_pad_poll()
1594 return -ETIMEDOUT; in tegra_io_pad_poll()
1597 static void tegra_io_pad_unprepare(struct tegra_pmc *pmc) in tegra_io_pad_unprepare() argument
1599 if (pmc->clk) in tegra_io_pad_unprepare()
1600 tegra_pmc_writel(pmc, DPD_SAMPLE_DISABLE, DPD_SAMPLE); in tegra_io_pad_unprepare()
1604 * tegra_io_pad_power_enable() - enable power to I/O pad
1616 pad = tegra_io_pad_find(pmc, id); in tegra_io_pad_power_enable()
1618 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id); in tegra_io_pad_power_enable()
1619 return -ENOENT; in tegra_io_pad_power_enable()
1622 mutex_lock(&pmc->powergates_lock); in tegra_io_pad_power_enable()
1624 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask); in tegra_io_pad_power_enable()
1626 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err); in tegra_io_pad_power_enable()
1630 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_OFF | mask, request); in tegra_io_pad_power_enable()
1632 err = tegra_io_pad_poll(pmc, status, mask, 0, 250); in tegra_io_pad_power_enable()
1634 dev_err(pmc->dev, "failed to enable I/O pad: %d\n", err); in tegra_io_pad_power_enable()
1638 tegra_io_pad_unprepare(pmc); in tegra_io_pad_power_enable()
1641 mutex_unlock(&pmc->powergates_lock); in tegra_io_pad_power_enable()
1647 * tegra_io_pad_power_disable() - disable power to I/O pad
1659 pad = tegra_io_pad_find(pmc, id); in tegra_io_pad_power_disable()
1661 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id); in tegra_io_pad_power_disable()
1662 return -ENOENT; in tegra_io_pad_power_disable()
1665 mutex_lock(&pmc->powergates_lock); in tegra_io_pad_power_disable()
1667 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask); in tegra_io_pad_power_disable()
1669 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err); in tegra_io_pad_power_disable()
1673 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_ON | mask, request); in tegra_io_pad_power_disable()
1675 err = tegra_io_pad_poll(pmc, status, mask, mask, 250); in tegra_io_pad_power_disable()
1677 dev_err(pmc->dev, "failed to disable I/O pad: %d\n", err); in tegra_io_pad_power_disable()
1681 tegra_io_pad_unprepare(pmc); in tegra_io_pad_power_disable()
1684 mutex_unlock(&pmc->powergates_lock); in tegra_io_pad_power_disable()
1689 static int tegra_io_pad_is_powered(struct tegra_pmc *pmc, enum tegra_io_pad id) in tegra_io_pad_is_powered() argument
1695 pad = tegra_io_pad_find(pmc, id); in tegra_io_pad_is_powered()
1697 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id); in tegra_io_pad_is_powered()
1698 return -ENOENT; in tegra_io_pad_is_powered()
1701 if (pad->dpd == UINT_MAX) in tegra_io_pad_is_powered()
1702 return -EINVAL; in tegra_io_pad_is_powered()
1704 status = pad->status; in tegra_io_pad_is_powered()
1705 mask = BIT(pad->dpd); in tegra_io_pad_is_powered()
1707 value = tegra_pmc_readl(pmc, status); in tegra_io_pad_is_powered()
1712 static int tegra_io_pad_set_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id, in tegra_io_pad_set_voltage() argument
1718 pad = tegra_io_pad_find(pmc, id); in tegra_io_pad_set_voltage()
1720 return -ENOENT; in tegra_io_pad_set_voltage()
1722 if (pad->voltage == UINT_MAX) in tegra_io_pad_set_voltage()
1723 return -ENOTSUPP; in tegra_io_pad_set_voltage()
1725 mutex_lock(&pmc->powergates_lock); in tegra_io_pad_set_voltage()
1727 if (pmc->soc->has_impl_33v_pwr) { in tegra_io_pad_set_voltage()
1728 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR); in tegra_io_pad_set_voltage()
1731 value &= ~BIT(pad->voltage); in tegra_io_pad_set_voltage()
1733 value |= BIT(pad->voltage); in tegra_io_pad_set_voltage()
1735 tegra_pmc_writel(pmc, value, PMC_IMPL_E_33V_PWR); in tegra_io_pad_set_voltage()
1737 /* write-enable PMC_PWR_DET_VALUE[pad->voltage] */ in tegra_io_pad_set_voltage()
1738 value = tegra_pmc_readl(pmc, PMC_PWR_DET); in tegra_io_pad_set_voltage()
1739 value |= BIT(pad->voltage); in tegra_io_pad_set_voltage()
1740 tegra_pmc_writel(pmc, value, PMC_PWR_DET); in tegra_io_pad_set_voltage()
1743 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE); in tegra_io_pad_set_voltage()
1746 value &= ~BIT(pad->voltage); in tegra_io_pad_set_voltage()
1748 value |= BIT(pad->voltage); in tegra_io_pad_set_voltage()
1750 tegra_pmc_writel(pmc, value, PMC_PWR_DET_VALUE); in tegra_io_pad_set_voltage()
1753 mutex_unlock(&pmc->powergates_lock); in tegra_io_pad_set_voltage()
1760 static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id) in tegra_io_pad_get_voltage() argument
1765 pad = tegra_io_pad_find(pmc, id); in tegra_io_pad_get_voltage()
1767 return -ENOENT; in tegra_io_pad_get_voltage()
1769 if (pad->voltage == UINT_MAX) in tegra_io_pad_get_voltage()
1770 return -ENOTSUPP; in tegra_io_pad_get_voltage()
1772 if (pmc->soc->has_impl_33v_pwr) in tegra_io_pad_get_voltage()
1773 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR); in tegra_io_pad_get_voltage()
1775 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE); in tegra_io_pad_get_voltage()
1777 if ((value & BIT(pad->voltage)) == 0) in tegra_io_pad_get_voltage()
1786 return pmc->suspend_mode; in tegra_pmc_get_suspend_mode()
1794 pmc->suspend_mode = mode; in tegra_pmc_set_suspend_mode()
1809 rate = pmc->rate; in tegra_pmc_enter_suspend_mode()
1819 ticks = pmc->cpu_good_time * rate + USEC_PER_SEC - 1; in tegra_pmc_enter_suspend_mode()
1821 tegra_pmc_writel(pmc, ticks, PMC_CPUPWRGOOD_TIMER); in tegra_pmc_enter_suspend_mode()
1823 ticks = pmc->cpu_off_time * rate + USEC_PER_SEC - 1; in tegra_pmc_enter_suspend_mode()
1825 tegra_pmc_writel(pmc, ticks, PMC_CPUPWROFF_TIMER); in tegra_pmc_enter_suspend_mode()
1827 value = tegra_pmc_readl(pmc, PMC_CNTRL); in tegra_pmc_enter_suspend_mode()
1830 tegra_pmc_writel(pmc, value, PMC_CNTRL); in tegra_pmc_enter_suspend_mode()
1834 static int tegra_pmc_parse_dt(struct tegra_pmc *pmc, struct device_node *np) in tegra_pmc_parse_dt() argument
1838 if (of_property_read_u32(np, "nvidia,suspend-mode", &value)) { in tegra_pmc_parse_dt()
1839 pmc->suspend_mode = TEGRA_SUSPEND_NONE; in tegra_pmc_parse_dt()
1843 pmc->suspend_mode = TEGRA_SUSPEND_LP0; in tegra_pmc_parse_dt()
1847 pmc->suspend_mode = TEGRA_SUSPEND_LP1; in tegra_pmc_parse_dt()
1851 pmc->suspend_mode = TEGRA_SUSPEND_LP2; in tegra_pmc_parse_dt()
1855 pmc->suspend_mode = TEGRA_SUSPEND_NONE; in tegra_pmc_parse_dt()
1860 pmc->suspend_mode = tegra_pm_validate_suspend_mode(pmc->suspend_mode); in tegra_pmc_parse_dt()
1862 if (of_property_read_u32(np, "nvidia,cpu-pwr-good-time", &value)) in tegra_pmc_parse_dt()
1863 pmc->suspend_mode = TEGRA_SUSPEND_NONE; in tegra_pmc_parse_dt()
1865 pmc->cpu_good_time = value; in tegra_pmc_parse_dt()
1867 if (of_property_read_u32(np, "nvidia,cpu-pwr-off-time", &value)) in tegra_pmc_parse_dt()
1868 pmc->suspend_mode = TEGRA_SUSPEND_NONE; in tegra_pmc_parse_dt()
1870 pmc->cpu_off_time = value; in tegra_pmc_parse_dt()
1872 if (of_property_read_u32_array(np, "nvidia,core-pwr-good-time", in tegra_pmc_parse_dt()
1874 pmc->suspend_mode = TEGRA_SUSPEND_NONE; in tegra_pmc_parse_dt()
1876 pmc->core_osc_time = values[0]; in tegra_pmc_parse_dt()
1877 pmc->core_pmu_time = values[1]; in tegra_pmc_parse_dt()
1879 if (of_property_read_u32(np, "nvidia,core-pwr-off-time", &value)) in tegra_pmc_parse_dt()
1880 pmc->suspend_mode = TEGRA_SUSPEND_NONE; in tegra_pmc_parse_dt()
1882 pmc->core_off_time = value; in tegra_pmc_parse_dt()
1884 pmc->corereq_high = of_property_read_bool(np, in tegra_pmc_parse_dt()
1885 "nvidia,core-power-req-active-high"); in tegra_pmc_parse_dt()
1887 pmc->sysclkreq_high = of_property_read_bool(np, in tegra_pmc_parse_dt()
1888 "nvidia,sys-clock-req-active-high"); in tegra_pmc_parse_dt()
1890 pmc->combined_req = of_property_read_bool(np, in tegra_pmc_parse_dt()
1891 "nvidia,combined-power-req"); in tegra_pmc_parse_dt()
1893 pmc->cpu_pwr_good_en = of_property_read_bool(np, in tegra_pmc_parse_dt()
1894 "nvidia,cpu-pwr-good-en"); in tegra_pmc_parse_dt()
1896 if (of_property_read_u32_array(np, "nvidia,lp0-vec", values, in tegra_pmc_parse_dt()
1898 if (pmc->suspend_mode == TEGRA_SUSPEND_LP0) in tegra_pmc_parse_dt()
1899 pmc->suspend_mode = TEGRA_SUSPEND_LP1; in tegra_pmc_parse_dt()
1901 pmc->lp0_vec_phys = values[0]; in tegra_pmc_parse_dt()
1902 pmc->lp0_vec_size = values[1]; in tegra_pmc_parse_dt()
1907 static int tegra_pmc_init(struct tegra_pmc *pmc) in tegra_pmc_init() argument
1909 if (pmc->soc->max_wake_events > 0) { in tegra_pmc_init()
1910 pmc->wake_type_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL); in tegra_pmc_init()
1911 if (!pmc->wake_type_level_map) in tegra_pmc_init()
1912 return -ENOMEM; in tegra_pmc_init()
1914 pmc->wake_type_dual_edge_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL); in tegra_pmc_init()
1915 if (!pmc->wake_type_dual_edge_map) in tegra_pmc_init()
1916 return -ENOMEM; in tegra_pmc_init()
1918 pmc->wake_sw_status_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL); in tegra_pmc_init()
1919 if (!pmc->wake_sw_status_map) in tegra_pmc_init()
1920 return -ENOMEM; in tegra_pmc_init()
1922 pmc->wake_cntrl_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL); in tegra_pmc_init()
1923 if (!pmc->wake_cntrl_level_map) in tegra_pmc_init()
1924 return -ENOMEM; in tegra_pmc_init()
1927 if (pmc->soc->init) in tegra_pmc_init()
1928 pmc->soc->init(pmc); in tegra_pmc_init()
1933 static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc) in tegra_pmc_init_tsense_reset() argument
1937 struct device *dev = pmc->dev; in tegra_pmc_init_tsense_reset()
1941 if (!pmc->soc->has_tsense_reset) in tegra_pmc_init_tsense_reset()
1944 np = of_get_child_by_name(pmc->dev->of_node, "i2c-thermtrip"); in tegra_pmc_init_tsense_reset()
1946 dev_warn(dev, "i2c-thermtrip node not found, %s.\n", disabled); in tegra_pmc_init_tsense_reset()
1950 if (of_property_read_u32(np, "nvidia,i2c-controller-id", &ctrl_id)) { in tegra_pmc_init_tsense_reset()
1955 if (of_property_read_u32(np, "nvidia,bus-addr", &pmu_addr)) { in tegra_pmc_init_tsense_reset()
1956 dev_err(dev, "nvidia,bus-addr missing, %s.\n", disabled); in tegra_pmc_init_tsense_reset()
1960 if (of_property_read_u32(np, "nvidia,reg-addr", ®_addr)) { in tegra_pmc_init_tsense_reset()
1961 dev_err(dev, "nvidia,reg-addr missing, %s.\n", disabled); in tegra_pmc_init_tsense_reset()
1965 if (of_property_read_u32(np, "nvidia,reg-data", ®_data)) { in tegra_pmc_init_tsense_reset()
1966 dev_err(dev, "nvidia,reg-data missing, %s.\n", disabled); in tegra_pmc_init_tsense_reset()
1970 if (of_property_read_u32(np, "nvidia,pinmux-id", &pinmux)) in tegra_pmc_init_tsense_reset()
1973 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL); in tegra_pmc_init_tsense_reset()
1975 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL); in tegra_pmc_init_tsense_reset()
1979 tegra_pmc_writel(pmc, value, PMC_SCRATCH54); in tegra_pmc_init_tsense_reset()
1993 checksum = 0x100 - checksum; in tegra_pmc_init_tsense_reset()
1997 tegra_pmc_writel(pmc, value, PMC_SCRATCH55); in tegra_pmc_init_tsense_reset()
1999 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL); in tegra_pmc_init_tsense_reset()
2001 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL); in tegra_pmc_init_tsense_reset()
2003 dev_info(pmc->dev, "emergency thermal reset enabled\n"); in tegra_pmc_init_tsense_reset()
2011 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); in tegra_io_pad_pinctrl_get_groups_count() local
2013 return pmc->soc->num_io_pads; in tegra_io_pad_pinctrl_get_groups_count()
2019 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl); in tegra_io_pad_pinctrl_get_group_name() local
2021 return pmc->soc->io_pads[group].name; in tegra_io_pad_pinctrl_get_group_name()
2029 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); in tegra_io_pad_pinctrl_get_group_pins() local
2031 *pins = &pmc->soc->io_pads[group].id; in tegra_io_pad_pinctrl_get_group_pins()
2049 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); in tegra_io_pad_pinconf_get() local
2054 pad = tegra_io_pad_find(pmc, pin); in tegra_io_pad_pinconf_get()
2056 return -EINVAL; in tegra_io_pad_pinconf_get()
2060 ret = tegra_io_pad_get_voltage(pmc, pad->id); in tegra_io_pad_pinconf_get()
2068 ret = tegra_io_pad_is_powered(pmc, pad->id); in tegra_io_pad_pinconf_get()
2076 return -EINVAL; in tegra_io_pad_pinconf_get()
2088 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); in tegra_io_pad_pinconf_set() local
2095 pad = tegra_io_pad_find(pmc, pin); in tegra_io_pad_pinconf_set()
2097 return -EINVAL; in tegra_io_pad_pinconf_set()
2106 err = tegra_io_pad_power_disable(pad->id); in tegra_io_pad_pinconf_set()
2108 err = tegra_io_pad_power_enable(pad->id); in tegra_io_pad_pinconf_set()
2115 return -EINVAL; in tegra_io_pad_pinconf_set()
2116 err = tegra_io_pad_set_voltage(pmc, pad->id, arg); in tegra_io_pad_pinconf_set()
2121 return -EINVAL; in tegra_io_pad_pinconf_set()
2139 static int tegra_pmc_pinctrl_init(struct tegra_pmc *pmc) in tegra_pmc_pinctrl_init() argument
2143 if (!pmc->soc->num_pin_descs) in tegra_pmc_pinctrl_init()
2146 tegra_pmc_pctl_desc.name = dev_name(pmc->dev); in tegra_pmc_pinctrl_init()
2147 tegra_pmc_pctl_desc.pins = pmc->soc->pin_descs; in tegra_pmc_pinctrl_init()
2148 tegra_pmc_pctl_desc.npins = pmc->soc->num_pin_descs; in tegra_pmc_pinctrl_init()
2150 pmc->pctl_dev = devm_pinctrl_register(pmc->dev, &tegra_pmc_pctl_desc, in tegra_pmc_pinctrl_init()
2151 pmc); in tegra_pmc_pinctrl_init()
2152 if (IS_ERR(pmc->pctl_dev)) { in tegra_pmc_pinctrl_init()
2153 err = PTR_ERR(pmc->pctl_dev); in tegra_pmc_pinctrl_init()
2154 dev_err(pmc->dev, "failed to register pin controller: %d\n", in tegra_pmc_pinctrl_init()
2167 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status); in reset_reason_show()
2168 value &= pmc->soc->regs->rst_source_mask; in reset_reason_show()
2169 value >>= pmc->soc->regs->rst_source_shift; in reset_reason_show()
2171 if (WARN_ON(value >= pmc->soc->num_reset_sources)) in reset_reason_show()
2174 return sprintf(buf, "%s\n", pmc->soc->reset_sources[value]); in reset_reason_show()
2184 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status); in reset_level_show()
2185 value &= pmc->soc->regs->rst_level_mask; in reset_level_show()
2186 value >>= pmc->soc->regs->rst_level_shift; in reset_level_show()
2188 if (WARN_ON(value >= pmc->soc->num_reset_levels)) in reset_level_show()
2191 return sprintf(buf, "%s\n", pmc->soc->reset_levels[value]); in reset_level_show()
2196 static void tegra_pmc_reset_sysfs_init(struct tegra_pmc *pmc) in tegra_pmc_reset_sysfs_init() argument
2198 struct device *dev = pmc->dev; in tegra_pmc_reset_sysfs_init()
2201 if (pmc->soc->reset_sources) { in tegra_pmc_reset_sysfs_init()
2209 if (pmc->soc->reset_levels) { in tegra_pmc_reset_sysfs_init()
2223 if (WARN_ON(fwspec->param_count < 2)) in tegra_pmc_irq_translate()
2224 return -EINVAL; in tegra_pmc_irq_translate()
2226 *hwirq = fwspec->param[0]; in tegra_pmc_irq_translate()
2227 *type = fwspec->param[1]; in tegra_pmc_irq_translate()
2235 struct tegra_pmc *pmc = domain->host_data; in tegra_pmc_irq_alloc() local
2236 const struct tegra_pmc_soc *soc = pmc->soc; in tegra_pmc_irq_alloc()
2242 return -EINVAL; in tegra_pmc_irq_alloc()
2244 for (i = 0; i < soc->num_wake_events; i++) { in tegra_pmc_irq_alloc()
2245 const struct tegra_wake_event *event = &soc->wake_events[i]; in tegra_pmc_irq_alloc()
2248 if (fwspec->param_count == 2) { in tegra_pmc_irq_alloc()
2251 if (event->id != fwspec->param[0]) in tegra_pmc_irq_alloc()
2255 event->id, in tegra_pmc_irq_alloc()
2256 &pmc->irq, pmc); in tegra_pmc_irq_alloc()
2260 /* simple hierarchies stop at the PMC level */ in tegra_pmc_irq_alloc()
2261 if (event->irq == 0) { in tegra_pmc_irq_alloc()
2262 err = irq_domain_disconnect_hierarchy(domain->parent, virq); in tegra_pmc_irq_alloc()
2266 spec.fwnode = &pmc->dev->of_node->fwnode; in tegra_pmc_irq_alloc()
2269 spec.param[1] = event->irq; in tegra_pmc_irq_alloc()
2270 spec.param[2] = fwspec->param[1]; in tegra_pmc_irq_alloc()
2279 if (fwspec->param_count == 3) { in tegra_pmc_irq_alloc()
2280 if (event->gpio.instance != fwspec->param[0] || in tegra_pmc_irq_alloc()
2281 event->gpio.pin != fwspec->param[1]) in tegra_pmc_irq_alloc()
2285 event->id, in tegra_pmc_irq_alloc()
2286 &pmc->irq, pmc); in tegra_pmc_irq_alloc()
2288 /* GPIO hierarchies stop at the PMC level */ in tegra_pmc_irq_alloc()
2289 if (!err && domain->parent) in tegra_pmc_irq_alloc()
2290 err = irq_domain_disconnect_hierarchy(domain->parent, in tegra_pmc_irq_alloc()
2296 /* If there is no wake-up event, there is no PMC mapping */ in tegra_pmc_irq_alloc()
2297 if (i == soc->num_wake_events) in tegra_pmc_irq_alloc()
2310 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data); in tegra210_pmc_irq_set_wake() local
2314 offset = data->hwirq / 32; in tegra210_pmc_irq_set_wake()
2315 bit = data->hwirq % 32; in tegra210_pmc_irq_set_wake()
2318 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE_STATUS); in tegra210_pmc_irq_set_wake()
2319 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE2_STATUS); in tegra210_pmc_irq_set_wake()
2321 tegra_pmc_writel(pmc, 0, PMC_WAKE_STATUS); in tegra210_pmc_irq_set_wake()
2322 tegra_pmc_writel(pmc, 0, PMC_WAKE2_STATUS); in tegra210_pmc_irq_set_wake()
2324 /* enable PMC wake */ in tegra210_pmc_irq_set_wake()
2325 if (data->hwirq >= 32) in tegra210_pmc_irq_set_wake()
2330 value = tegra_pmc_readl(pmc, offset); in tegra210_pmc_irq_set_wake()
2337 tegra_pmc_writel(pmc, value, offset); in tegra210_pmc_irq_set_wake()
2344 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data); in tegra210_pmc_irq_set_type() local
2348 offset = data->hwirq / 32; in tegra210_pmc_irq_set_type()
2349 bit = data->hwirq % 32; in tegra210_pmc_irq_set_type()
2351 if (data->hwirq >= 32) in tegra210_pmc_irq_set_type()
2356 value = tegra_pmc_readl(pmc, offset); in tegra210_pmc_irq_set_type()
2374 return -EINVAL; in tegra210_pmc_irq_set_type()
2377 tegra_pmc_writel(pmc, value, offset); in tegra210_pmc_irq_set_type()
2382 static void tegra186_pmc_set_wake_filters(struct tegra_pmc *pmc) in tegra186_pmc_set_wake_filters() argument
2387 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID)); in tegra186_pmc_set_wake_filters()
2389 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID)); in tegra186_pmc_set_wake_filters()
2390 dev_dbg(pmc->dev, "WAKE_AOWAKE_CNTRL_83 = 0x%x\n", value); in tegra186_pmc_set_wake_filters()
2395 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data); in tegra186_pmc_irq_set_wake() local
2399 offset = data->hwirq / 32; in tegra186_pmc_irq_set_wake()
2400 bit = data->hwirq % 32; in tegra186_pmc_irq_set_wake()
2403 writel(0x1, pmc->wake + WAKE_AOWAKE_STATUS_W(data->hwirq)); in tegra186_pmc_irq_set_wake()
2406 value = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset)); in tegra186_pmc_irq_set_wake()
2413 writel(value, pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset)); in tegra186_pmc_irq_set_wake()
2416 writel(!!on, pmc->wake + WAKE_AOWAKE_MASK_W(data->hwirq)); in tegra186_pmc_irq_set_wake()
2423 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data); in tegra186_pmc_irq_set_type() local
2426 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq)); in tegra186_pmc_irq_set_type()
2432 set_bit(data->hwirq, pmc->wake_type_level_map); in tegra186_pmc_irq_set_type()
2433 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map); in tegra186_pmc_irq_set_type()
2439 clear_bit(data->hwirq, pmc->wake_type_level_map); in tegra186_pmc_irq_set_type()
2440 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map); in tegra186_pmc_irq_set_type()
2445 clear_bit(data->hwirq, pmc->wake_type_level_map); in tegra186_pmc_irq_set_type()
2446 set_bit(data->hwirq, pmc->wake_type_dual_edge_map); in tegra186_pmc_irq_set_type()
2450 return -EINVAL; in tegra186_pmc_irq_set_type()
2453 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq)); in tegra186_pmc_irq_set_type()
2460 if (data->parent_data) in tegra_irq_mask_parent()
2466 if (data->parent_data) in tegra_irq_unmask_parent()
2472 if (data->parent_data) in tegra_irq_eoi_parent()
2480 if (data->parent_data) in tegra_irq_set_affinity_parent()
2483 return -EINVAL; in tegra_irq_set_affinity_parent()
2486 static int tegra_pmc_irq_init(struct tegra_pmc *pmc) in tegra_pmc_irq_init() argument
2491 np = of_irq_find_parent(pmc->dev->of_node); in tegra_pmc_irq_init()
2500 pmc->irq.name = dev_name(pmc->dev); in tegra_pmc_irq_init()
2501 pmc->irq.irq_mask = tegra_irq_mask_parent; in tegra_pmc_irq_init()
2502 pmc->irq.irq_unmask = tegra_irq_unmask_parent; in tegra_pmc_irq_init()
2503 pmc->irq.irq_eoi = tegra_irq_eoi_parent; in tegra_pmc_irq_init()
2504 pmc->irq.irq_set_affinity = tegra_irq_set_affinity_parent; in tegra_pmc_irq_init()
2505 pmc->irq.irq_set_type = pmc->soc->irq_set_type; in tegra_pmc_irq_init()
2506 pmc->irq.irq_set_wake = pmc->soc->irq_set_wake; in tegra_pmc_irq_init()
2508 pmc->domain = irq_domain_create_hierarchy(parent, 0, 96, dev_fwnode(pmc->dev), in tegra_pmc_irq_init()
2509 &tegra_pmc_irq_domain_ops, pmc); in tegra_pmc_irq_init()
2510 if (!pmc->domain) { in tegra_pmc_irq_init()
2511 dev_err(pmc->dev, "failed to allocate domain\n"); in tegra_pmc_irq_init()
2512 return -ENOMEM; in tegra_pmc_irq_init()
2521 struct tegra_pmc *pmc = container_of(nb, struct tegra_pmc, clk_nb); in tegra_pmc_clk_notify_cb() local
2526 mutex_lock(&pmc->powergates_lock); in tegra_pmc_clk_notify_cb()
2530 pmc->rate = data->new_rate; in tegra_pmc_clk_notify_cb()
2534 mutex_unlock(&pmc->powergates_lock); in tegra_pmc_clk_notify_cb()
2539 return notifier_from_errno(-EINVAL); in tegra_pmc_clk_notify_cb()
2547 tegra_pmc_readl(pmc, offset); in pmc_clk_fence_udelay()
2548 /* pmc clk propagation delay 2 us */ in pmc_clk_fence_udelay()
2557 val = tegra_pmc_readl(pmc, clk->offs) >> clk->mux_shift; in pmc_clk_mux_get_parent()
2568 val = tegra_pmc_readl(pmc, clk->offs); in pmc_clk_mux_set_parent()
2569 val &= ~(PMC_CLK_OUT_MUX_MASK << clk->mux_shift); in pmc_clk_mux_set_parent()
2570 val |= index << clk->mux_shift; in pmc_clk_mux_set_parent()
2571 tegra_pmc_writel(pmc, val, clk->offs); in pmc_clk_mux_set_parent()
2572 pmc_clk_fence_udelay(clk->offs); in pmc_clk_mux_set_parent()
2582 val = tegra_pmc_readl(pmc, clk->offs) & BIT(clk->force_en_shift); in pmc_clk_is_enabled()
2591 val = tegra_pmc_readl(pmc, offs); in pmc_clk_set_state()
2593 tegra_pmc_writel(pmc, val, offs); in pmc_clk_set_state()
2601 pmc_clk_set_state(clk->offs, clk->force_en_shift, 1); in pmc_clk_enable()
2610 pmc_clk_set_state(clk->offs, clk->force_en_shift, 0); in pmc_clk_disable()
2623 tegra_pmc_clk_out_register(struct tegra_pmc *pmc, in tegra_pmc_clk_out_register() argument
2630 pmc_clk = devm_kzalloc(pmc->dev, sizeof(*pmc_clk), GFP_KERNEL); in tegra_pmc_clk_out_register()
2632 return ERR_PTR(-ENOMEM); in tegra_pmc_clk_out_register()
2634 init.name = data->name; in tegra_pmc_clk_out_register()
2636 init.parent_names = data->parents; in tegra_pmc_clk_out_register()
2637 init.num_parents = data->num_parents; in tegra_pmc_clk_out_register()
2641 pmc_clk->hw.init = &init; in tegra_pmc_clk_out_register()
2642 pmc_clk->offs = offset; in tegra_pmc_clk_out_register()
2643 pmc_clk->mux_shift = data->mux_shift; in tegra_pmc_clk_out_register()
2644 pmc_clk->force_en_shift = data->force_en_shift; in tegra_pmc_clk_out_register()
2646 return clk_register(NULL, &pmc_clk->hw); in tegra_pmc_clk_out_register()
2653 return tegra_pmc_readl(pmc, gate->offs) & BIT(gate->shift) ? 1 : 0; in pmc_clk_gate_is_enabled()
2660 pmc_clk_set_state(gate->offs, gate->shift, 1); in pmc_clk_gate_enable()
2669 pmc_clk_set_state(gate->offs, gate->shift, 0); in pmc_clk_gate_disable()
2679 tegra_pmc_clk_gate_register(struct tegra_pmc *pmc, const char *name, in tegra_pmc_clk_gate_register() argument
2686 gate = devm_kzalloc(pmc->dev, sizeof(*gate), GFP_KERNEL); in tegra_pmc_clk_gate_register()
2688 return ERR_PTR(-ENOMEM); in tegra_pmc_clk_gate_register()
2696 gate->hw.init = &init; in tegra_pmc_clk_gate_register()
2697 gate->offs = offset; in tegra_pmc_clk_gate_register()
2698 gate->shift = shift; in tegra_pmc_clk_gate_register()
2700 return clk_register(NULL, &gate->hw); in tegra_pmc_clk_gate_register()
2703 static void tegra_pmc_clock_register(struct tegra_pmc *pmc, in tegra_pmc_clock_register() argument
2711 num_clks = pmc->soc->num_pmc_clks; in tegra_pmc_clock_register()
2712 if (pmc->soc->has_blink_output) in tegra_pmc_clock_register()
2718 clk_data = devm_kmalloc(pmc->dev, sizeof(*clk_data), GFP_KERNEL); in tegra_pmc_clock_register()
2722 clk_data->clks = devm_kcalloc(pmc->dev, TEGRA_PMC_CLK_MAX, in tegra_pmc_clock_register()
2723 sizeof(*clk_data->clks), GFP_KERNEL); in tegra_pmc_clock_register()
2724 if (!clk_data->clks) in tegra_pmc_clock_register()
2727 clk_data->clk_num = TEGRA_PMC_CLK_MAX; in tegra_pmc_clock_register()
2730 clk_data->clks[i] = ERR_PTR(-ENOENT); in tegra_pmc_clock_register()
2732 for (i = 0; i < pmc->soc->num_pmc_clks; i++) { in tegra_pmc_clock_register()
2735 data = pmc->soc->pmc_clks_data + i; in tegra_pmc_clock_register()
2737 clk = tegra_pmc_clk_out_register(pmc, data, PMC_CLK_OUT_CNTRL); in tegra_pmc_clock_register()
2739 dev_warn(pmc->dev, "unable to register clock %s: %d\n", in tegra_pmc_clock_register()
2740 data->name, PTR_ERR_OR_ZERO(clk)); in tegra_pmc_clock_register()
2744 err = clk_register_clkdev(clk, data->name, NULL); in tegra_pmc_clock_register()
2746 dev_warn(pmc->dev, in tegra_pmc_clock_register()
2748 data->name, err); in tegra_pmc_clock_register()
2752 clk_data->clks[data->clk_id] = clk; in tegra_pmc_clock_register()
2755 if (pmc->soc->has_blink_output) { in tegra_pmc_clock_register()
2756 tegra_pmc_writel(pmc, 0x0, PMC_BLINK_TIMER); in tegra_pmc_clock_register()
2757 clk = tegra_pmc_clk_gate_register(pmc, in tegra_pmc_clock_register()
2763 dev_warn(pmc->dev, in tegra_pmc_clock_register()
2769 clk = tegra_pmc_clk_gate_register(pmc, "pmc_blink", in tegra_pmc_clock_register()
2774 dev_warn(pmc->dev, in tegra_pmc_clock_register()
2782 dev_warn(pmc->dev, in tegra_pmc_clock_register()
2788 clk_data->clks[TEGRA_PMC_CLK_BLINK] = clk; in tegra_pmc_clock_register()
2793 dev_warn(pmc->dev, "failed to add pmc clock provider: %d\n", in tegra_pmc_clock_register()
2815 struct tegra_pmc *pmc = context; in tegra_pmc_regmap_readl() local
2817 *value = tegra_pmc_readl(pmc, offset); in tegra_pmc_regmap_readl()
2823 struct tegra_pmc *pmc = context; in tegra_pmc_regmap_writel() local
2825 tegra_pmc_writel(pmc, value, offset); in tegra_pmc_regmap_writel()
2841 static int tegra_pmc_regmap_init(struct tegra_pmc *pmc) in tegra_pmc_regmap_init() argument
2846 if (pmc->soc->has_usb_sleepwalk) { in tegra_pmc_regmap_init()
2847 regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config); in tegra_pmc_regmap_init()
2850 dev_err(pmc->dev, "failed to allocate register map (%d)\n", err); in tegra_pmc_regmap_init()
2860 pmc->suspend_mode = TEGRA_SUSPEND_NOT_READY; in tegra_pmc_reset_suspend_mode()
2874 if (WARN_ON(!pmc->base || !pmc->soc)) in tegra_pmc_probe()
2875 return -ENODEV; in tegra_pmc_probe()
2877 err = tegra_pmc_parse_dt(pmc, pdev->dev.of_node); in tegra_pmc_probe()
2881 err = devm_add_action_or_reset(&pdev->dev, tegra_pmc_reset_suspend_mode, in tegra_pmc_probe()
2891 if (pmc->soc->has_single_mmio_aperture) { in tegra_pmc_probe()
2892 pmc->wake = base; in tegra_pmc_probe()
2893 pmc->aotag = base; in tegra_pmc_probe()
2894 pmc->scratch = base; in tegra_pmc_probe()
2896 pmc->wake = devm_platform_ioremap_resource_byname(pdev, "wake"); in tegra_pmc_probe()
2897 if (IS_ERR(pmc->wake)) in tegra_pmc_probe()
2898 return PTR_ERR(pmc->wake); in tegra_pmc_probe()
2900 pmc->aotag = devm_platform_ioremap_resource_byname(pdev, "aotag"); in tegra_pmc_probe()
2901 if (IS_ERR(pmc->aotag)) in tegra_pmc_probe()
2902 return PTR_ERR(pmc->aotag); in tegra_pmc_probe()
2908 pmc->scratch = devm_ioremap_resource(&pdev->dev, res); in tegra_pmc_probe()
2909 if (IS_ERR(pmc->scratch)) in tegra_pmc_probe()
2910 return PTR_ERR(pmc->scratch); in tegra_pmc_probe()
2912 pmc->scratch = NULL; in tegra_pmc_probe()
2916 pmc->clk = devm_clk_get_optional(&pdev->dev, "pclk"); in tegra_pmc_probe()
2917 if (IS_ERR(pmc->clk)) in tegra_pmc_probe()
2918 return dev_err_probe(&pdev->dev, PTR_ERR(pmc->clk), in tegra_pmc_probe()
2922 * PMC should be last resort for restarting since it soft-resets in tegra_pmc_probe()
2925 if (pmc->scratch) { in tegra_pmc_probe()
2926 err = devm_register_reboot_notifier(&pdev->dev, in tegra_pmc_probe()
2929 dev_err(&pdev->dev, in tegra_pmc_probe()
2936 err = devm_register_sys_off_handler(&pdev->dev, in tegra_pmc_probe()
2941 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n", in tegra_pmc_probe()
2947 * PMC should be primary power-off method if it soft-resets CPU, in tegra_pmc_probe()
2950 err = devm_register_sys_off_handler(&pdev->dev, in tegra_pmc_probe()
2955 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n", in tegra_pmc_probe()
2965 if (pmc->clk) { in tegra_pmc_probe()
2966 pmc->clk_nb.notifier_call = tegra_pmc_clk_notify_cb; in tegra_pmc_probe()
2967 err = devm_clk_notifier_register(&pdev->dev, pmc->clk, in tegra_pmc_probe()
2968 &pmc->clk_nb); in tegra_pmc_probe()
2970 dev_err(&pdev->dev, in tegra_pmc_probe()
2975 pmc->rate = clk_get_rate(pmc->clk); in tegra_pmc_probe()
2978 pmc->dev = &pdev->dev; in tegra_pmc_probe()
2980 err = tegra_pmc_init(pmc); in tegra_pmc_probe()
2982 dev_err(&pdev->dev, "failed to initialize PMC: %d\n", err); in tegra_pmc_probe()
2986 tegra_pmc_init_tsense_reset(pmc); in tegra_pmc_probe()
2988 tegra_pmc_reset_sysfs_init(pmc); in tegra_pmc_probe()
2990 err = tegra_pmc_pinctrl_init(pmc); in tegra_pmc_probe()
2994 err = tegra_pmc_regmap_init(pmc); in tegra_pmc_probe()
2998 err = tegra_powergate_init(pmc, pdev->dev.of_node); in tegra_pmc_probe()
3002 err = tegra_pmc_irq_init(pmc); in tegra_pmc_probe()
3006 mutex_lock(&pmc->powergates_lock); in tegra_pmc_probe()
3007 iounmap(pmc->base); in tegra_pmc_probe()
3008 pmc->base = base; in tegra_pmc_probe()
3009 mutex_unlock(&pmc->powergates_lock); in tegra_pmc_probe()
3011 tegra_pmc_clock_register(pmc, pdev->dev.of_node); in tegra_pmc_probe()
3012 platform_set_drvdata(pdev, pmc); in tegra_pmc_probe()
3016 if (pmc->soc->set_wake_filters) in tegra_pmc_probe()
3017 pmc->soc->set_wake_filters(pmc); in tegra_pmc_probe()
3024 tegra_powergate_remove_all(pdev->dev.of_node); in tegra_pmc_probe()
3026 device_remove_file(&pdev->dev, &dev_attr_reset_reason); in tegra_pmc_probe()
3027 device_remove_file(&pdev->dev, &dev_attr_reset_level); in tegra_pmc_probe()
3036 static void wke_32kwritel(struct tegra_pmc *pmc, u32 value, unsigned int offset) in wke_32kwritel() argument
3038 writel(value, pmc->wake + offset); in wke_32kwritel()
3042 static void wke_write_wake_level(struct tegra_pmc *pmc, int wake, int level) in wke_write_wake_level() argument
3047 value = readl(pmc->wake + offset); in wke_write_wake_level()
3053 writel(value, pmc->wake + offset); in wke_write_wake_level()
3056 static void wke_write_wake_levels(struct tegra_pmc *pmc) in wke_write_wake_levels() argument
3060 for (i = 0; i < pmc->soc->max_wake_events; i++) in wke_write_wake_levels()
3061 wke_write_wake_level(pmc, i, test_bit(i, pmc->wake_cntrl_level_map)); in wke_write_wake_levels()
3064 static void wke_clear_sw_wake_status(struct tegra_pmc *pmc) in wke_clear_sw_wake_status() argument
3066 wke_32kwritel(pmc, 1, WAKE_AOWAKE_SW_STATUS_W_0); in wke_clear_sw_wake_status()
3069 static void wke_read_sw_wake_status(struct tegra_pmc *pmc) in wke_read_sw_wake_status() argument
3074 for (i = 0; i < pmc->soc->max_wake_events; i++) in wke_read_sw_wake_status()
3075 wke_write_wake_level(pmc, i, 0); in wke_read_sw_wake_status()
3077 wke_clear_sw_wake_status(pmc); in wke_read_sw_wake_status()
3079 wke_32kwritel(pmc, 1, WAKE_LATCH_SW); in wke_read_sw_wake_status()
3084 * the polarity of the wake level from 0->1 while latching to force in wke_read_sw_wake_status()
3087 for (i = 0; i < pmc->soc->max_wake_events; i++) in wke_read_sw_wake_status()
3088 wke_write_wake_level(pmc, i, 1); in wke_read_sw_wake_status()
3097 wke_32kwritel(pmc, 0, WAKE_LATCH_SW); in wke_read_sw_wake_status()
3099 bitmap_zero(pmc->wake_sw_status_map, pmc->soc->max_wake_events); in wke_read_sw_wake_status()
3101 for (i = 0; i < pmc->soc->max_wake_vectors; i++) { in wke_read_sw_wake_status()
3102 status = readl(pmc->wake + WAKE_AOWAKE_SW_STATUS(i)); in wke_read_sw_wake_status()
3105 set_bit(wake + (i * 32), pmc->wake_sw_status_map); in wke_read_sw_wake_status()
3109 static void wke_clear_wake_status(struct tegra_pmc *pmc) in wke_clear_wake_status() argument
3115 for (i = 0; i < pmc->soc->max_wake_vectors; i++) { in wke_clear_wake_status()
3116 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i)); in wke_clear_wake_status()
3117 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask; in wke_clear_wake_status()
3120 wke_32kwritel(pmc, 0x1, WAKE_AOWAKE_STATUS_W((i * 32) + wake)); in wke_clear_wake_status()
3125 static void tegra186_pmc_process_wake_events(struct tegra_pmc *pmc, unsigned int index, in tegra186_pmc_process_wake_events() argument
3130 dev_dbg(pmc->dev, "Wake[%d:%d] status=%#lx\n", (index * 32) + 31, index * 32, status); in tegra186_pmc_process_wake_events()
3137 irq = irq_find_mapping(pmc->domain, hwirq); in tegra186_pmc_process_wake_events()
3140 if (!desc || !desc->action || !desc->action->name) { in tegra186_pmc_process_wake_events()
3141 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, IRQ %d\n", hwirq, irq); in tegra186_pmc_process_wake_events()
3145 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, %s\n", hwirq, desc->action->name); in tegra186_pmc_process_wake_events()
3155 for (i = 0; i < pmc->soc->max_wake_vectors; i++) { in tegra186_pmc_wake_syscore_resume()
3156 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i)); in tegra186_pmc_wake_syscore_resume()
3157 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask; in tegra186_pmc_wake_syscore_resume()
3159 tegra186_pmc_process_wake_events(pmc, i, status); in tegra186_pmc_wake_syscore_resume()
3165 wke_read_sw_wake_status(pmc); in tegra186_pmc_wake_syscore_suspend()
3167 /* flip the wakeup trigger for dual-edge triggered pads in tegra186_pmc_wake_syscore_suspend()
3170 bitmap_andnot(pmc->wake_cntrl_level_map, pmc->wake_type_dual_edge_map, in tegra186_pmc_wake_syscore_suspend()
3171 pmc->wake_sw_status_map, pmc->soc->max_wake_events); in tegra186_pmc_wake_syscore_suspend()
3172 bitmap_or(pmc->wake_cntrl_level_map, pmc->wake_cntrl_level_map, in tegra186_pmc_wake_syscore_suspend()
3173 pmc->wake_type_level_map, pmc->soc->max_wake_events); in tegra186_pmc_wake_syscore_suspend()
3175 /* Clear PMC Wake Status registers while going to suspend */ in tegra186_pmc_wake_syscore_suspend()
3176 wke_clear_wake_status(pmc); in tegra186_pmc_wake_syscore_suspend()
3177 wke_write_wake_levels(pmc); in tegra186_pmc_wake_syscore_suspend()
3185 struct tegra_pmc *pmc = dev_get_drvdata(dev); in tegra_pmc_suspend() local
3187 tegra_pmc_writel(pmc, virt_to_phys(tegra_resume), PMC_SCRATCH41); in tegra_pmc_suspend()
3194 struct tegra_pmc *pmc = dev_get_drvdata(dev); in tegra_pmc_resume() local
3196 tegra_pmc_writel(pmc, 0x0, PMC_SCRATCH41); in tegra_pmc_resume()
3224 static void tegra20_pmc_init(struct tegra_pmc *pmc) in tegra20_pmc_init() argument
3229 value = tegra_pmc_readl(pmc, PMC_CNTRL); in tegra20_pmc_init()
3231 tegra_pmc_writel(pmc, value, PMC_CNTRL); in tegra20_pmc_init()
3233 value = tegra_pmc_readl(pmc, PMC_CNTRL); in tegra20_pmc_init()
3235 if (pmc->sysclkreq_high) in tegra20_pmc_init()
3240 if (pmc->corereq_high) in tegra20_pmc_init()
3246 tegra_pmc_writel(pmc, value, PMC_CNTRL); in tegra20_pmc_init()
3249 value = tegra_pmc_readl(pmc, PMC_CNTRL); in tegra20_pmc_init()
3251 tegra_pmc_writel(pmc, value, PMC_CNTRL); in tegra20_pmc_init()
3254 if (pmc->suspend_mode != TEGRA_SUSPEND_NONE) { in tegra20_pmc_init()
3255 osc = DIV_ROUND_UP(pmc->core_osc_time * 8192, 1000000); in tegra20_pmc_init()
3256 pmu = DIV_ROUND_UP(pmc->core_pmu_time * 32768, 1000000); in tegra20_pmc_init()
3257 off = DIV_ROUND_UP(pmc->core_off_time * 32768, 1000000); in tegra20_pmc_init()
3258 tegra_pmc_writel(pmc, ((osc << 8) & 0xff00) | (pmu & 0xff), in tegra20_pmc_init()
3260 tegra_pmc_writel(pmc, off, PMC_COREPWROFF_TIMER); in tegra20_pmc_init()
3264 static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc, in tegra20_pmc_setup_irq_polarity() argument
3270 value = tegra_pmc_readl(pmc, PMC_CNTRL); in tegra20_pmc_setup_irq_polarity()
3277 tegra_pmc_writel(pmc, value, PMC_CNTRL); in tegra20_pmc_setup_irq_polarity()
3495 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3497 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3498 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3499 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3500 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x1c0, 0x1c4, UINT_MAX, "pex-cntrl"),
3528 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3530 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3531 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3532 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3533 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3611 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x1c0, 0x1c4, 18, "audio-hv"),
3620 TEGRA_IO_PAD(TEGRA_IO_PAD_DEBUG_NONAO, 26, 0x1b8, 0x1bc, UINT_MAX, "debug-nonao"),
3633 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3634 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3635 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3636 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3637 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, UINT_MAX, UINT_MAX, UINT_MAX, 11, "pex-cntrl"),
3641 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI_HV, 15, 0x1c0, 0x1c4, 23, "spi-hv"),
3647 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb-bias"),
3652 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3661 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DEBUG_NONAO, "debug-nonao"),
3674 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3675 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3676 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3677 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3678 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3682 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI_HV, "spi-hv"),
3688 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3743 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3744 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3745 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3746 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3747 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3751 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x74, 0x78, UINT_MAX, "usb-bias"),
3756 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3757 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3758 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3759 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC2_HV, 2, 0x7c, 0x80, 5, "sdmmc2-hv"),
3771 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC_HV, 20, 0x7c, 0x80, 2, "dmic-hv"),
3773 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
3774 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
3776 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
3777 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
3784 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3785 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
3786 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
3787 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3788 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3792 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3797 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
3798 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
3799 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3800 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC2_HV, "sdmmc2-hv"),
3812 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC_HV, "dmic-hv"),
3814 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
3815 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
3817 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3818 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
3830 static void tegra186_pmc_init(struct tegra_pmc *pmc) in tegra186_pmc_init() argument
3832 pmc->syscore.suspend = tegra186_pmc_wake_syscore_suspend; in tegra186_pmc_init()
3833 pmc->syscore.resume = tegra186_pmc_wake_syscore_resume; in tegra186_pmc_init()
3835 register_syscore_ops(&pmc->syscore); in tegra186_pmc_init()
3838 static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc, in tegra186_pmc_setup_irq_polarity() argument
3847 index = of_property_match_string(np, "reg-names", "wake"); in tegra186_pmc_setup_irq_polarity()
3849 dev_err(pmc->dev, "failed to find PMC wake registers\n"); in tegra186_pmc_setup_irq_polarity()
3857 dev_err(pmc->dev, "failed to map PMC wake registers\n"); in tegra186_pmc_setup_irq_polarity()
3940 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3941 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3942 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3943 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3944 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3946 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2_BIAS, 9, 0x74, 0x78, UINT_MAX, "pex-clk-2-bias"),
3947 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2, 10, 0x74, 0x78, UINT_MAX, "pex-clk-2"),
3951 TEGRA_IO_PAD(TEGRA_IO_PAD_PWR_CTL, 15, 0x74, 0x78, UINT_MAX, "pwr-ctl"),
3952 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO53, 16, 0x74, 0x78, UINT_MAX, "soc-gpio53"),
3954 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM2, 18, 0x74, 0x78, UINT_MAX, "gp-pwm2"),
3955 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM3, 19, 0x74, 0x78, UINT_MAX, "gp-pwm3"),
3956 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO12, 20, 0x74, 0x78, UINT_MAX, "soc-gpio12"),
3957 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO13, 21, 0x74, 0x78, UINT_MAX, "soc-gpio13"),
3958 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO10, 22, 0x74, 0x78, UINT_MAX, "soc-gpio10"),
3962 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP3, 26, 0x74, 0x78, UINT_MAX, "hdmi-dp3"),
3963 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP2, 27, 0x74, 0x78, UINT_MAX, "hdmi-dp2"),
3964 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3965 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3966 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3967 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CTL2, 1, 0x7c, 0x80, UINT_MAX, "pex-ctl2"),
3968 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L0_RST, 2, 0x7c, 0x80, UINT_MAX, "pex-l0-rst"),
3969 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L1_RST, 3, 0x7c, 0x80, UINT_MAX, "pex-l1-rst"),
3971 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L5_RST, 5, 0x7c, 0x80, UINT_MAX, "pex-l5-rst"),
3982 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
3983 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
3985 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
3986 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
3992 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3993 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
3994 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
3995 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3996 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3998 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2_BIAS, "pex-clk-2-bias"),
3999 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2, "pex-clk-2"),
4003 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PWR_CTL, "pwr-ctl"),
4004 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO53, "soc-gpio53"),
4006 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM2, "gp-pwm2"),
4007 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM3, "gp-pwm3"),
4008 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO12, "soc-gpio12"),
4009 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO13, "soc-gpio13"),
4010 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO10, "soc-gpio10"),
4014 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP3, "hdmi-dp3"),
4015 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP2, "hdmi-dp2"),
4016 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4017 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
4018 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
4019 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CTL2, "pex-ctl2"),
4020 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L0_RST, "pex-l0-rst"),
4021 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L1_RST, "pex-l1-rst"),
4023 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L5_RST, "pex-l5-rst"),
4034 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4035 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4037 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4038 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4079 TEGRA_WAKE_SIMPLE("usb3-port-0", 76),
4080 TEGRA_WAKE_SIMPLE("usb3-port-1", 77),
4081 TEGRA_WAKE_SIMPLE("usb3-port-2-3", 78),
4082 TEGRA_WAKE_SIMPLE("usb2-port-0", 79),
4083 TEGRA_WAKE_SIMPLE("usb2-port-1", 80),
4084 TEGRA_WAKE_SIMPLE("usb2-port-2", 81),
4085 TEGRA_WAKE_SIMPLE("usb2-port-3", 82),
4127 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 0, 0xe0d0, 0xe0d4, UINT_MAX, "hdmi-dp0"),
4134 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 0, 0xe054, 0xe058, 4, "sdmmc1-hv"),
4135 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, UINT_MAX, UINT_MAX, UINT_MAX, 6, "sdmmc3-hv"),
4136 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 1, "audio-hv"),
4137 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4145 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4152 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4153 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4154 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4155 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4211 TEGRA_WAKE_GPIO("sd-wake", 8, 0, TEGRA234_MAIN_GPIO(G, 7)),
4217 TEGRA_WAKE_IRQ("sw-wake", SW_WAKE_ID, 179),
4376 { .compatible = "nvidia,tegra264-pmc", .data = &tegra264_pmc_soc },
4377 { .compatible = "nvidia,tegra234-pmc", .data = &tegra234_pmc_soc },
4378 { .compatible = "nvidia,tegra194-pmc", .data = &tegra194_pmc_soc },
4379 { .compatible = "nvidia,tegra186-pmc", .data = &tegra186_pmc_soc },
4380 { .compatible = "nvidia,tegra210-pmc", .data = &tegra210_pmc_soc },
4381 { .compatible = "nvidia,tegra132-pmc", .data = &tegra124_pmc_soc },
4382 { .compatible = "nvidia,tegra124-pmc", .data = &tegra124_pmc_soc },
4383 { .compatible = "nvidia,tegra114-pmc", .data = &tegra114_pmc_soc },
4384 { .compatible = "nvidia,tegra30-pmc", .data = &tegra30_pmc_soc },
4385 { .compatible = "nvidia,tegra20-pmc", .data = &tegra20_pmc_soc },
4394 np = of_get_child_by_name(dev->of_node, "powergates"); in tegra_pmc_sync_state()
4403 np = of_get_child_by_name(dev->of_node, "core-domain"); in tegra_pmc_sync_state()
4411 * Newer device-trees have power domains, but we need to prepare all in tegra_pmc_sync_state()
4415 if (!pmc->soc->supports_core_domain) in tegra_pmc_sync_state()
4419 * Older device-trees don't have core PD, and thus, there are in tegra_pmc_sync_state()
4423 pmc->core_domain_state_synced = true; in tegra_pmc_sync_state()
4425 /* this is a no-op if core regulator isn't used */ in tegra_pmc_sync_state()
4426 mutex_lock(&pmc->powergates_lock); in tegra_pmc_sync_state()
4428 mutex_unlock(&pmc->powergates_lock); in tegra_pmc_sync_state()
4436 .name = "tegra-pmc",
4448 static bool __init tegra_pmc_detect_tz_only(struct tegra_pmc *pmc) in tegra_pmc_detect_tz_only() argument
4452 saved = readl(pmc->base + pmc->soc->regs->scratch0); in tegra_pmc_detect_tz_only()
4459 writel(value, pmc->base + pmc->soc->regs->scratch0); in tegra_pmc_detect_tz_only()
4460 value = readl(pmc->base + pmc->soc->regs->scratch0); in tegra_pmc_detect_tz_only()
4462 /* if we read all-zeroes, access is restricted to TZ only */ in tegra_pmc_detect_tz_only()
4464 pr_info("access to PMC is restricted to TZ\n"); in tegra_pmc_detect_tz_only()
4469 writel(saved, pmc->base + pmc->soc->regs->scratch0); in tegra_pmc_detect_tz_only()
4486 mutex_init(&pmc->powergates_lock); in tegra_pmc_early_init()
4491 * Fall back to legacy initialization for 32-bit ARM only. All in tegra_pmc_early_init()
4492 * 64-bit ARM device tree files for Tegra are required to have in tegra_pmc_early_init()
4493 * a PMC node. in tegra_pmc_early_init()
4495 * This is for backwards-compatibility with old device trees in tegra_pmc_early_init()
4496 * that didn't contain a PMC node. Note that in this case the in tegra_pmc_early_init()
4511 * nice with multi-platform kernels. in tegra_pmc_early_init()
4521 pr_err("failed to get PMC registers\n"); in tegra_pmc_early_init()
4523 return -ENXIO; in tegra_pmc_early_init()
4527 pmc->base = ioremap(regs.start, resource_size(®s)); in tegra_pmc_early_init()
4528 if (!pmc->base) { in tegra_pmc_early_init()
4529 pr_err("failed to map PMC registers\n"); in tegra_pmc_early_init()
4531 return -ENXIO; in tegra_pmc_early_init()
4535 pmc->soc = match->data; in tegra_pmc_early_init()
4537 if (pmc->soc->maybe_tz_only) in tegra_pmc_early_init()
4538 pmc->tz_only = tegra_pmc_detect_tz_only(pmc); in tegra_pmc_early_init()
4541 for (i = 0; i < pmc->soc->num_powergates; i++) in tegra_pmc_early_init()
4542 if (pmc->soc->powergates[i]) in tegra_pmc_early_init()
4543 set_bit(i, pmc->powergates_available); in tegra_pmc_early_init()
4546 * Invert the interrupt polarity if a PMC device tree node in tegra_pmc_early_init()
4547 * exists and contains the nvidia,invert-interrupt property. in tegra_pmc_early_init()
4549 invert = of_property_read_bool(np, "nvidia,invert-interrupt"); in tegra_pmc_early_init()
4551 pmc->soc->setup_irq_polarity(pmc, np, invert); in tegra_pmc_early_init()