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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /power/rk3399.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14588.98.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'power/rk3399.c')
-rw-r--r--power/rk3399.c610
1 files changed, 0 insertions, 610 deletions
diff --git a/power/rk3399.c b/power/rk3399.c
deleted file mode 100644
index 9db25f0b28..0000000000
--- a/power/rk3399.c
+++ /dev/null
@@ -1,610 +0,0 @@
-/* Copyright 2013 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/* rk3399 chipset power control module for Chrome EC */
-
-/*
- * The description of each CONFIG_CHIPSET_POWER_SEQ_VERSION:
- *
- * Version 0: Initial/default revision for clamshell / convertible.
- * Version 1: Simplified power tree for tablet / detachable.
- */
-
-#include "charge_state.h"
-#include "chipset.h"
-#include "common.h"
-#include "console.h"
-#include "ec_commands.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "lid_switch.h"
-#include "power.h"
-#include "power_button.h"
-#include "system.h"
-#include "task.h"
-#include "timer.h"
-#include "usb_charge.h"
-#include "util.h"
-
-/* Console output macros */
-#define CPUTS(outstr) cputs(CC_CHIPSET, outstr)
-#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args)
-
-/* Input state flags */
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 1
- #define IN_PGOOD_PP1250_S3 POWER_SIGNAL_MASK(PP1250_S3_PWR_GOOD)
- #define IN_PGOOD_PP900_S0 POWER_SIGNAL_MASK(PP900_S0_PWR_GOOD)
-#else
- #define IN_PGOOD_PP5000 POWER_SIGNAL_MASK(PP5000_PWR_GOOD)
- #define IN_PGOOD_SYS POWER_SIGNAL_MASK(SYS_PWR_GOOD)
-#endif
-
-#define IN_PGOOD_AP POWER_SIGNAL_MASK(AP_PWR_GOOD)
-#define IN_SUSPEND_DEASSERTED POWER_SIGNAL_MASK(SUSPEND_DEASSERTED)
-
-/* Rails requires for S3 and S0 */
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 1
- #define IN_PGOOD_S3 (IN_PGOOD_PP1250_S3)
- #define IN_PGOOD_S0 (IN_PGOOD_S3 | IN_PGOOD_PP900_S0 | IN_PGOOD_AP)
- /* This board can optionally wake-on-USB in S3 */
- #define S3_USB_WAKE
- /* This board has non-INT power signal pins */
- #define POWER_SIGNAL_POLLING
- /* This board supports CR50 deep sleep mode */
- #define CR50_DEEP_SLEEP
- /*
- * If AP_PWR_GOOD assertion does not trigger an interrupt, poll the
- * signal every 5ms, up to 200 times (~ 1 second timeout).
- */
- #define PGOOD_S0_POLL_TIMEOUT (5 * MSEC)
- #define PGOOD_S0_POLL_TRIES 200
-#else
- #define IN_PGOOD_S3 (IN_PGOOD_PP5000)
- #define IN_PGOOD_S0 (IN_PGOOD_S3 | IN_PGOOD_AP | IN_PGOOD_SYS)
-#endif
-
-/* All inputs in the right state for S0 */
-#define IN_ALL_S0 (IN_PGOOD_S0 | IN_SUSPEND_DEASSERTED)
-
-/* Long power key press to force shutdown in S0 */
-#define FORCED_SHUTDOWN_DELAY (8 * SECOND)
-
-#define CHARGER_INITIALIZED_DELAY_MS 100
-#define CHARGER_INITIALIZED_TRIES 40
-
-/* Data structure for a GPIO operation for power sequencing */
-struct power_seq_op {
- /* enum gpio_signal in 8 bits */
- uint8_t signal;
- uint8_t level;
- /* Number of milliseconds to delay after setting signal to level */
- uint8_t delay;
-};
-BUILD_ASSERT(GPIO_COUNT < 256);
-
-/*
- * This is the power sequence for POWER_S5S3.
- * The entries in the table are handled sequentially from the top
- * to the bottom.
- */
-
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 1
-static const struct power_seq_op s5s3_power_seq[] = {
- { GPIO_PP900_S3_EN, 1, 2 },
- { GPIO_PP3300_S3_EN, 1, 2 },
- { GPIO_PP1800_S3_EN, 1, 2 },
- { GPIO_PP1250_S3_EN, 1, 2 },
-};
-#else
-static const struct power_seq_op s5s3_power_seq[] = {
- { GPIO_PPVAR_LOGIC_EN, 1, 0 },
- { GPIO_PP900_AP_EN, 1, 0 },
- { GPIO_PP900_PCIE_EN, 1, 2 },
- { GPIO_PP900_PMU_EN, 1, 0 },
- { GPIO_PP900_PLL_EN, 1, 0 },
- { GPIO_PP900_USB_EN, 1, 2 },
- { GPIO_SYS_RST_L, 0, 0 },
- { GPIO_PP1800_PMU_EN_L, 0, 2 },
- { GPIO_LPDDR_PWR_EN, 1, 2 },
- { GPIO_PP1800_USB_EN_L, 0, 2 },
- { GPIO_PP3300_USB_EN_L, 0, 0 },
- { GPIO_PP5000_EN, 1, 0 },
- { GPIO_PP3300_TRACKPAD_EN_L, 0, 1 },
- { GPIO_PP1800_LID_EN_L, 0, 0 },
- { GPIO_PP1800_SIXAXIS_EN_L, 0, 2 },
- { GPIO_PP1800_SENSOR_EN_L, 0, 0 },
-};
-#endif
-
-/* The power sequence for POWER_S3S0 */
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 1
-static const struct power_seq_op s3s0_power_seq[] = {
- { GPIO_AP_CORE_EN, 1, 2 },
- { GPIO_PP1800_S0_EN, 1, 0 },
-};
-#else
-static const struct power_seq_op s3s0_power_seq[] = {
- { GPIO_PPVAR_CLOGIC_EN, 1, 2 },
- { GPIO_PP900_DDRPLL_EN, 1, 2 },
- { GPIO_PP1800_AP_AVDD_EN_L, 0, 2 },
- { GPIO_AP_CORE_EN, 1, 2 },
- { GPIO_PP1800_S0_EN_L, 0, 2 },
- { GPIO_PP3300_S0_EN_L, 0, 0 },
-};
-#endif
-
-#ifdef S3_USB_WAKE
-/* Sigs that may already be on in S3, if we need to wake-on-USB */
-static const struct power_seq_op s3s0_usb_wake_power_seq[] = {
- { GPIO_PP900_S0_EN, 1, 2 },
- { GPIO_PP1800_USB_EN, 1, 2 },
- { GPIO_PP3300_S0_EN, 1, 2 },
-};
-#endif
-
-/* The power sequence for POWER_S0S3 */
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 1
-static const struct power_seq_op s0s3_power_seq[] = {
- { GPIO_AP_CORE_EN, 0, 20 },
-};
-#else
-static const struct power_seq_op s0s3_power_seq[] = {
- { GPIO_PP3300_S0_EN_L, 1, 20 },
- { GPIO_PP1800_S0_EN_L, 1, 1 },
- { GPIO_AP_CORE_EN, 0, 20 },
- { GPIO_PP1800_AP_AVDD_EN_L, 1, 1 },
- { GPIO_PP900_DDRPLL_EN, 0, 1 },
- { GPIO_PPVAR_CLOGIC_EN, 0, 0 },
-};
-#endif
-
-#ifdef S3_USB_WAKE
-/* Sigs that need to be left on in S3, if we need to wake-on-USB */
-static const struct power_seq_op s0s3_usb_wake_power_seq[] = {
- { GPIO_PP3300_S0_EN, 0, 20 },
- { GPIO_PP1800_S0_EN, 0, 1 },
- { GPIO_PP1800_USB_EN, 0, 1 },
- { GPIO_PP900_S0_EN, 0, 0 },
-};
-#endif
-
-/* The power sequence for POWER_S3S5 */
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 1
-static const struct power_seq_op s3s5_power_seq[] = {
- { GPIO_SYS_RST_L, 0, 0 },
- { GPIO_PP1250_S3_EN, 0, 2 },
- { GPIO_PP1800_S3_EN, 0, 2 },
- { GPIO_PP3300_S3_EN, 0, 2 },
- { GPIO_PP900_S3_EN, 0, 0 },
-};
-#else
-static const struct power_seq_op s3s5_power_seq[] = {
- { GPIO_PP1800_SENSOR_EN_L, 1, 0},
- { GPIO_PP1800_SIXAXIS_EN_L, 1, 0},
- { GPIO_PP1800_LID_EN_L, 1, 0 },
- { GPIO_PP3300_TRACKPAD_EN_L, 1, 0 },
- { GPIO_PP5000_EN, 0, 0 },
- { GPIO_PP3300_USB_EN_L, 1, 20 },
- { GPIO_PP1800_USB_EN_L, 1, 10 },
- { GPIO_LPDDR_PWR_EN, 0, 20 },
- { GPIO_PP1800_PMU_EN_L, 1, 2 },
- { GPIO_PP900_PLL_EN, 0, 0 },
- { GPIO_PP900_PMU_EN, 0, 0 },
- { GPIO_PP900_USB_EN, 0, 6 },
- { GPIO_PP900_PCIE_EN, 0, 0 },
- { GPIO_PP900_AP_EN, 0, 0 },
- { GPIO_PPVAR_LOGIC_EN, 0, 0 },
-};
-#endif
-
-static int forcing_shutdown;
-
-void chipset_force_shutdown(enum chipset_shutdown_reason reason)
-{
- CPRINTS("%s(%d)", __func__, reason);
- report_ap_reset(reason);
-
- /*
- * Force power off. This condition will reset once the state machine
- * transitions to G3.
- */
- forcing_shutdown = 1;
- task_wake(TASK_ID_CHIPSET);
-}
-
-#define SYS_RST_HOLD_US (1 * MSEC)
-void chipset_reset(enum chipset_reset_reason reason)
-{
-#ifdef CONFIG_CMD_RTC
- /* Print out the RTC to help correlate resets in logs. */
- print_system_rtc(CC_CHIPSET);
-#endif
- CPRINTS("%s(%d)", __func__, reason);
- report_ap_reset(reason);
-
- /* Pulse SYS_RST */
- gpio_set_level(GPIO_SYS_RST_L, 0);
- if (in_interrupt_context())
- udelay(SYS_RST_HOLD_US);
- else
- usleep(SYS_RST_HOLD_US);
- gpio_set_level(GPIO_SYS_RST_L, 1);
-}
-
-enum power_state power_chipset_init(void)
-{
- if (system_jumped_to_this_image()) {
- if ((power_get_signals() & IN_ALL_S0) == IN_ALL_S0) {
- disable_sleep(SLEEP_MASK_AP_RUN);
- CPRINTS("already in S0");
- return POWER_S0;
- }
- } else if (!(system_get_reset_flags() & EC_RESET_FLAG_AP_OFF))
- /* Auto-power on */
- chipset_exit_hard_off();
-
- return POWER_G3;
-}
-
-static void force_shutdown(void)
-{
- forcing_shutdown = 1;
- task_wake(TASK_ID_CHIPSET);
-}
-DECLARE_DEFERRED(force_shutdown);
-
-/*
- * Debounce PGOOD_AP if we lose it suddenly during S0, since output voltage
- * transitions may cause spurious pulses.
- */
-#define PGOOD_AP_DEBOUNCE_TIMEOUT (100 * MSEC)
-
-/*
- * The AP informs the EC of its S0 / S3 state through IN_SUSPEND_DEASSERTED /
- * AP_EC_S3_S0_L. Latency between deassertion and power rails coming up must
- * be minimized, so check for deassertion at various stages of our suspend
- * power sequencing, and immediately transition out of suspend if necessary.
- */
-#define SLEEP_INTERVAL_MS 5
-#define MSLEEP_CHECK_ABORTED_SUSPEND(msec) \
- do { \
- int sleep_remain = msec; \
- do { \
- msleep(MIN(sleep_remain, SLEEP_INTERVAL_MS)); \
- sleep_remain -= SLEEP_INTERVAL_MS; \
- if (!forcing_shutdown && \
- power_get_signals() & IN_SUSPEND_DEASSERTED) { \
- CPRINTS("suspend aborted"); \
- return POWER_S3S0; \
- } \
- } while (sleep_remain > 0); \
- } while (0)
-BUILD_ASSERT(POWER_S3S0 != 0);
-
-/**
- * Step through the power sequence table and do corresponding GPIO operations.
- *
- * @param power_seq_ops The pointer to the power sequence table.
- * @param op_count The number of entries of power_seq_ops.
- * @return non-zero if suspend aborted during POWER_S0S3, 0 otherwise.
- */
-static int power_seq_run(const struct power_seq_op *power_seq_ops, int op_count)
-{
- int i;
-
- for (i = 0; i < op_count; i++) {
- gpio_set_level(power_seq_ops[i].signal,
- power_seq_ops[i].level);
- if (!power_seq_ops[i].delay)
- continue;
- if ((power_seq_ops == s0s3_power_seq)
-#ifdef S3_USB_WAKE
- || (power_seq_ops == s0s3_usb_wake_power_seq)
-#endif
- )
- MSLEEP_CHECK_ABORTED_SUSPEND(power_seq_ops[i].delay);
- else
- msleep(power_seq_ops[i].delay);
- }
- return 0;
-}
-
-enum power_state power_handle_state(enum power_state state)
-{
-#ifndef CR50_DEEP_SLEEP
- static int sys_reset_asserted;
-#endif
-#ifdef S3_USB_WAKE
- static int usb_wake_enabled;
-#endif
- int tries = 0;
-
- switch (state) {
- case POWER_G3:
- break;
-
- case POWER_S5:
- if (forcing_shutdown)
- return POWER_S5G3;
- else
- return POWER_S5S3;
- break;
-
- case POWER_S3:
- if (!power_has_signals(IN_PGOOD_S3) || forcing_shutdown)
- return POWER_S3S5;
- else if (power_get_signals() & IN_SUSPEND_DEASSERTED)
- return POWER_S3S0;
- break;
-
- case POWER_S0:
- if (!power_has_signals(IN_PGOOD_S3) ||
- forcing_shutdown ||
- !(power_get_signals() & IN_SUSPEND_DEASSERTED))
- return POWER_S0S3;
-
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION != 1
- /*
- * Wait up to PGOOD_AP_DEBOUNCE_TIMEOUT for IN_PGOOD_AP to
- * come back before transitioning back to S3. PGOOD_SYS can
- * also glitch, with a glitch duration < 1ms, so debounce
- * it here as well.
- */
- if (power_wait_signals_timeout(IN_PGOOD_AP | IN_PGOOD_SYS,
- PGOOD_AP_DEBOUNCE_TIMEOUT)
- == EC_ERROR_TIMEOUT)
- return POWER_S0S3;
-
- /*
- * power_wait_signals_timeout() can block and consume task
- * wake events, so re-verify the state of the world.
- */
- if (!power_has_signals(IN_PGOOD_S3) ||
- forcing_shutdown ||
- !(power_get_signals() & IN_SUSPEND_DEASSERTED))
- return POWER_S0S3;
-#endif
-
- break;
-
- case POWER_G3S5:
- forcing_shutdown = 0;
-
- /*
- * Allow time for charger to be initialized, in case we're
- * trying to boot the AP with no battery.
- */
- while (charge_prevent_power_on(0) &&
- tries++ < CHARGER_INITIALIZED_TRIES) {
- msleep(CHARGER_INITIALIZED_DELAY_MS);
- }
-
- /* Return to G3 if battery level is too low. */
- if (charge_want_shutdown() ||
- tries > CHARGER_INITIALIZED_TRIES) {
- CPRINTS("power-up inhibited");
- chipset_force_shutdown(
- CHIPSET_SHUTDOWN_BATTERY_INHIBIT);
- return POWER_G3;
- }
-
- /* Power up to next state */
- return POWER_S5;
-
- case POWER_S5S3:
- power_seq_run(s5s3_power_seq, ARRAY_SIZE(s5s3_power_seq));
-
-#ifndef CR50_DEEP_SLEEP
- /*
- * Assert SYS_RST now, to be released in S3S0, to avoid
- * resetting the TPM soon after power-on.
- */
- sys_reset_asserted = 1;
-#endif
-
- if (power_wait_signals(IN_PGOOD_S3)) {
- chipset_force_shutdown(CHIPSET_SHUTDOWN_WAIT);
- return POWER_S3S5;
- }
-
- /* Call hooks now that rails are up */
- hook_notify(HOOK_CHIPSET_STARTUP);
-
- /* Power up to next state */
- return POWER_S3;
-
- case POWER_S3S0:
-#ifdef S3_USB_WAKE
- /* Bring up S3 USB wake rails, if they are down */
- if (!usb_wake_enabled)
- power_seq_run(s3s0_usb_wake_power_seq,
- ARRAY_SIZE(s3s0_usb_wake_power_seq));
- usb_wake_enabled = 0;
-#endif
- power_seq_run(s3s0_power_seq, ARRAY_SIZE(s3s0_power_seq));
-
-#ifndef CR50_DEEP_SLEEP
- /* Release SYS_RST if we came from S5 */
- if (sys_reset_asserted) {
-#endif
- msleep(10);
- gpio_set_level(GPIO_SYS_RST_L, 1);
-
-#ifndef CR50_DEEP_SLEEP
- sys_reset_asserted = 0;
- }
-#endif
-
-#ifdef POWER_SIGNAL_POLLING
- /*
- * Poll power signals every PGOOD_S0_POLL_TIMEOUT us, since
- * AP_PWR_GOOD assertion doesn't trigger a power signal
- * interrupt.
- */
- while (power_wait_signals_timeout(IN_PGOOD_S0,
- PGOOD_S0_POLL_TIMEOUT) == EC_ERROR_TIMEOUT &&
- ++tries < PGOOD_S0_POLL_TRIES)
- ;
-
- if (tries >= PGOOD_S0_POLL_TRIES) {
- CPRINTS("power timeout on input; "
- "wanted 0x%04x, got 0x%04x",
- IN_PGOOD_S0, power_get_signals() & IN_PGOOD_S0);
-#else
- if (power_wait_signals(IN_PGOOD_S0)) {
-#endif /* POWER_SIGNAL_POLLING */
- chipset_force_shutdown(CHIPSET_SHUTDOWN_WAIT);
- return POWER_S0S3;
- }
-
- /* Call hooks now that rails are up */
- hook_notify(HOOK_CHIPSET_RESUME);
-
- /*
- * Disable idle task deep sleep. This means that the low
- * power idle task will not go into deep sleep while in S0.
- */
- disable_sleep(SLEEP_MASK_AP_RUN);
-
- /* Power up to next state */
- return POWER_S0;
-
- case POWER_S0S3:
- /* Call hooks before we remove power rails */
- hook_notify(HOOK_CHIPSET_SUSPEND);
- MSLEEP_CHECK_ABORTED_SUSPEND(20);
-
- if (power_seq_run(s0s3_power_seq, ARRAY_SIZE(s0s3_power_seq)))
- return POWER_S3S0;
-
-#ifdef S3_USB_WAKE
- /* Leave up rails needed for S3 USB wake, if requested */
- usb_wake_enabled = (power_get_host_sleep_state() ==
- HOST_SLEEP_EVENT_S3_WAKEABLE_SUSPEND);
- if (!usb_wake_enabled &&
- power_seq_run(s0s3_usb_wake_power_seq,
- ARRAY_SIZE(s0s3_usb_wake_power_seq)))
- return POWER_S3S0;
-#endif
-
- /*
- * Enable idle task deep sleep. Allow the low power idle task
- * to go into deep sleep in S3 or lower.
- */
- enable_sleep(SLEEP_MASK_AP_RUN);
-
- /*
- * In case the power button is held awaiting power-off timeout,
- * power off immediately now that we're entering S3.
- */
- if (power_button_is_pressed()) {
- forcing_shutdown = 1;
- hook_call_deferred(&force_shutdown_data, -1);
- }
-
- return POWER_S3;
-
- case POWER_S3S5:
-#ifdef S3_USB_WAKE
- /* Make sure all S3 rails are off */
- if (usb_wake_enabled) {
- power_seq_run(s0s3_usb_wake_power_seq,
- ARRAY_SIZE(s0s3_usb_wake_power_seq));
- usb_wake_enabled = 0;
- }
-#endif
-
- /* Call hooks before we remove power rails */
- hook_notify(HOOK_CHIPSET_SHUTDOWN);
-
- power_seq_run(s3s5_power_seq, ARRAY_SIZE(s3s5_power_seq));
-
- /* Call hooks after we remove power rails */
- hook_notify(HOOK_CHIPSET_SHUTDOWN_COMPLETE);
-
- /* Start shutting down */
- return POWER_S5;
-
- case POWER_S5G3:
- return POWER_G3;
- }
-
- return state;
-}
-
-static void power_button_changed(void)
-{
- static uint8_t tablet_boot_on_button_release;
-
- if (power_button_is_pressed()) {
- if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION != 1
- /* Power up from off */
- chipset_exit_hard_off();
-#else
- tablet_boot_on_button_release = 1;
-#endif
- }
- /* Delayed power down from S0/S3, cancel on PB release */
- hook_call_deferred(&force_shutdown_data,
- FORCED_SHUTDOWN_DELAY);
- } else {
-#if CONFIG_CHIPSET_POWER_SEQ_VERSION == 1
- if (tablet_boot_on_button_release) {
- /* Power up from off */
- chipset_exit_hard_off();
- tablet_boot_on_button_release = 0;
- }
-#endif
- /* Power button released, cancel deferred shutdown */
- hook_call_deferred(&force_shutdown_data, -1);
- }
-}
-DECLARE_HOOK(HOOK_POWER_BUTTON_CHANGE, power_button_changed, HOOK_PRIO_DEFAULT);
-
-#ifdef CONFIG_LID_SWITCH
-static void lid_changed(void)
-{
- /* Power-up from off on lid open */
- if (lid_is_open() && chipset_in_state(CHIPSET_STATE_ANY_OFF))
- chipset_exit_hard_off();
-}
-DECLARE_HOOK(HOOK_LID_CHANGE, lid_changed, HOOK_PRIO_DEFAULT);
-#endif
-
-#ifdef POWER_SIGNAL_POLLING
-/*
- * Polling for non-INT power signal pins.
- * Call power_signal_interrupt() when the GPIO status of those pins changes.
- */
-static void power_signal_changed(void)
-{
- static uint8_t in_signals; /* Current power signal status */
- uint8_t inew = 0;
- const struct power_signal_info *s = power_signal_list;
- int i;
-
- BUILD_ASSERT(POWER_SIGNAL_COUNT <= 8);
-
- for (i = 0; i < POWER_SIGNAL_COUNT; i++, s++) {
- /* Skip if this is an INT pin. */
- if (s->gpio < GPIO_IH_COUNT)
- continue;
-
- if (power_signal_is_asserted(s))
- inew |= 1 << i;
- }
-
- if (inew != in_signals) {
- /*
- * Pass a fake power gpio_signal to power_signal_interrupt().
- * Note that here we make power_signal_interrupt() reentrant.
- */
- power_signal_interrupt(POWER_SIGNAL_COUNT);
- in_signals = inew;
- }
-}
-DECLARE_HOOK(HOOK_TICK, power_signal_changed, HOOK_PRIO_DEFAULT);
-#endif