diff options
| author | GuEe-GUI <[email protected]> | 2025-12-15 12:22:24 +0800 |
|---|---|---|
| committer | R b b666 <[email protected]> | 2025-12-17 10:29:05 +0800 |
| commit | df990e91d3572a6681ec763ca67ef49f5feace45 (patch) | |
| tree | 473c57427d9444a3af15940f6a831f506f552036 /components/drivers | |
| parent | b4d332706ee7b75e09b19d35c205f3dc2174d5bf (diff) | |
[dm][power] add new drivers for power framework
1. GPIO poweroff/restart
2. Generic SYSCON regmap poweroff/reboot mode/reboot
3. Emulator battery(thermal)/charger
4. GPIO charger
Signed-off-by: GuEe-GUI <[email protected]>
Diffstat (limited to 'components/drivers')
| -rw-r--r-- | components/drivers/power/Kconfig | 2 | ||||
| -rw-r--r-- | components/drivers/power/SConscript | 11 | ||||
| -rw-r--r-- | components/drivers/power/reset/Kconfig | 32 | ||||
| -rw-r--r-- | components/drivers/power/reset/SConscript | 18 | ||||
| -rw-r--r-- | components/drivers/power/reset/gpio-poweroff.c | 100 | ||||
| -rw-r--r-- | components/drivers/power/reset/gpio-restart.c | 100 | ||||
| -rw-r--r-- | components/drivers/power/reset/reboot-mode.c | 105 | ||||
| -rw-r--r-- | components/drivers/power/reset/reboot-mode.h | 27 | ||||
| -rw-r--r-- | components/drivers/power/reset/syscon-poweroff.c | 104 | ||||
| -rw-r--r-- | components/drivers/power/reset/syscon-reboot-mode.c | 115 | ||||
| -rw-r--r-- | components/drivers/power/reset/syscon-reboot.c | 104 | ||||
| -rw-r--r-- | components/drivers/power/supply/Kconfig | 15 | ||||
| -rw-r--r-- | components/drivers/power/supply/SConscript | 6 | ||||
| -rw-r--r-- | components/drivers/power/supply/emu-power.c | 379 | ||||
| -rw-r--r-- | components/drivers/power/supply/gpio-charger.c | 346 |
15 files changed, 1464 insertions, 0 deletions
diff --git a/components/drivers/power/Kconfig b/components/drivers/power/Kconfig new file mode 100644 index 0000000000..b832ac2350 --- /dev/null +++ b/components/drivers/power/Kconfig @@ -0,0 +1,2 @@ +rsource "reset/Kconfig" +rsource "supply/Kconfig" diff --git a/components/drivers/power/SConscript b/components/drivers/power/SConscript new file mode 100644 index 0000000000..0b84689e91 --- /dev/null +++ b/components/drivers/power/SConscript @@ -0,0 +1,11 @@ +from building import * + +cwd = GetCurrentDir() +objs = [] +list = os.listdir(cwd) + +for d in list: + path = os.path.join(cwd, d) + if os.path.isfile(os.path.join(path, 'SConscript')): + objs = objs + SConscript(os.path.join(d, 'SConscript')) +Return('objs') diff --git a/components/drivers/power/reset/Kconfig b/components/drivers/power/reset/Kconfig index 78378fe541..376418398c 100644 --- a/components/drivers/power/reset/Kconfig +++ b/components/drivers/power/reset/Kconfig @@ -2,6 +2,38 @@ menuconfig RT_USING_POWER_RESET bool "Using Board level reset or poweroff" depends on RT_USING_DM +config RT_POWER_RESET_GPIO_POWEROFF + bool "GPIO poweroff" + depends on RT_USING_POWER_RESET + depends on RT_USING_PIN + depends on RT_USING_PINCTRL + +config RT_POWER_RESET_GPIO_RESTART + bool "GPIO restart" + depends on RT_USING_POWER_RESET + depends on RT_USING_PIN + depends on RT_USING_PINCTRL + +config RT_POWER_RESET_SYSCON_POWEROFF + bool "Generic SYSCON regmap poweroff driver" + depends on RT_USING_POWER_RESET + depends on RT_MFD_SYSCON + +config RT_POWER_RESET_SYSCON_REBOOT_MODE + bool "Generic SYSCON regmap reboot mode driver" + depends on RT_USING_POWER_RESET + depends on RT_MFD_SYSCON + select RT_POWER_RESET_REBOOT_MODE + +config RT_POWER_RESET_SYSCON_REBOOT + bool "Generic SYSCON regmap reboot driver" + depends on RT_USING_POWER_RESET + depends on RT_MFD_SYSCON + if RT_USING_POWER_RESET osource "$(SOC_DM_POWER_RESET_DIR)/Kconfig" endif + +config RT_POWER_RESET_REBOOT_MODE + bool + depends on RT_USING_OFW diff --git a/components/drivers/power/reset/SConscript b/components/drivers/power/reset/SConscript index 9824338614..6174e407e1 100644 --- a/components/drivers/power/reset/SConscript +++ b/components/drivers/power/reset/SConscript @@ -10,6 +10,24 @@ CPPPATH = [cwd + '/../../include'] src = [] +if GetDepend(['RT_POWER_RESET_GPIO_POWEROFF']): + src += ['gpio-poweroff.c'] + +if GetDepend(['RT_POWER_RESET_GPIO_RESTART']): + src += ['gpio-restart.c'] + +if GetDepend(['RT_POWER_RESET_REBOOT_MODE']): + src += ['reboot-mode.c'] + +if GetDepend(['RT_POWER_RESET_SYSCON_POWEROFF']): + src += ['syscon-poweroff.c'] + +if GetDepend(['RT_POWER_RESET_SYSCON_REBOOT_MODE']): + src += ['syscon-reboot-mode.c'] + +if GetDepend(['RT_POWER_RESET_SYSCON_REBOOT']): + src += ['syscon-reboot.c'] + group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH) Return('group') diff --git a/components/drivers/power/reset/gpio-poweroff.c b/components/drivers/power/reset/gpio-poweroff.c new file mode 100644 index 0000000000..a54a1e7f68 --- /dev/null +++ b/components/drivers/power/reset/gpio-poweroff.c @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include <rtthread.h> +#include <rtdevice.h> + +#define DBG_TAG "reset.gpio.poweroff" +#define DBG_LVL DBG_INFO +#include <rtdbg.h> + +struct gpio_poweroff +{ + rt_ubase_t pin; + rt_uint8_t active_value; + + rt_uint32_t timeout_ms; + rt_uint32_t active_delay_ms; + rt_uint32_t inactive_delay_ms; +}; + +static rt_err_t gpio_poweroff_do_poweroff(struct rt_device *dev) +{ + struct gpio_poweroff *gp = dev->user_data; + + rt_pin_mode(gp->pin, PIN_MODE_OUTPUT); + rt_thread_mdelay(gp->active_delay_ms); + + rt_pin_write(gp->pin, !gp->active_value); + rt_thread_mdelay(gp->inactive_delay_ms); + rt_pin_write(gp->pin, gp->active_value); + + rt_thread_mdelay(gp->timeout_ms); + + return RT_EOK; +} + +static rt_err_t gpio_poweroff_probe(struct rt_platform_device *pdev) +{ + rt_err_t err; + struct rt_device *dev = &pdev->parent; + struct gpio_poweroff *gp = rt_calloc(1, sizeof(*gp)); + + if (!gp) + { + return -RT_ENOMEM; + } + + gp->pin = rt_pin_get_named_pin(dev, RT_NULL, 0, RT_NULL, &gp->active_value); + + if (gp->pin < 0) + { + err = gp->pin; + goto _fail; + } + + gp->active_delay_ms = 100; + gp->inactive_delay_ms = 100; + gp->timeout_ms = 3000; + + rt_dm_dev_prop_read_u32(dev, "active-delay-ms", &gp->active_delay_ms); + rt_dm_dev_prop_read_u32(dev, "inactive-delay-ms", &gp->inactive_delay_ms); + rt_dm_dev_prop_read_u32(dev, "timeout-ms", &gp->timeout_ms); + + dev->user_data = gp; + + if ((err = rt_dm_power_off_handler(dev, RT_DM_POWER_OFF_MODE_SHUTDOWN, + RT_DM_POWER_OFF_PRIO_DEFAULT, gpio_poweroff_do_poweroff))) + { + goto _fail; + } + + return RT_EOK; + +_fail: + rt_free(gp); + + return err; +} + +static const struct rt_ofw_node_id gpio_poweroff_ofw_ids[] = +{ + { .compatible = "gpio-poweroff" }, + { /* sentinel */ } +}; + +static struct rt_platform_driver gpio_poweroff_driver = +{ + .name = "reset-gpio-poweroff", + .ids = gpio_poweroff_ofw_ids, + + .probe = gpio_poweroff_probe, +}; +RT_PLATFORM_DRIVER_EXPORT(gpio_poweroff_driver); diff --git a/components/drivers/power/reset/gpio-restart.c b/components/drivers/power/reset/gpio-restart.c new file mode 100644 index 0000000000..02eff0a7f4 --- /dev/null +++ b/components/drivers/power/reset/gpio-restart.c @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include <rtthread.h> +#include <rtdevice.h> + +#define DBG_TAG "reset.gpio.restart" +#define DBG_LVL DBG_INFO +#include <rtdbg.h> + +struct gpio_restart +{ + rt_ubase_t pin; + rt_uint8_t active_value; + + rt_uint32_t wait_delay_ms; + rt_uint32_t active_delay_ms; + rt_uint32_t inactive_delay_ms; +}; + +static rt_err_t gpio_restart_do_restart(struct rt_device *dev) +{ + struct gpio_restart *gr = dev->user_data; + + rt_pin_mode(gr->pin, PIN_MODE_OUTPUT); + rt_thread_mdelay(gr->active_delay_ms); + + rt_pin_write(gr->pin, !gr->active_value); + rt_thread_mdelay(gr->inactive_delay_ms); + rt_pin_write(gr->pin, gr->active_value); + + rt_thread_mdelay(gr->wait_delay_ms); + + return RT_EOK; +} + +static rt_err_t gpio_restart_probe(struct rt_platform_device *pdev) +{ + rt_err_t err; + struct rt_device *dev = &pdev->parent; + struct gpio_restart *gr = rt_calloc(1, sizeof(*gr)); + + if (!gr) + { + return -RT_ENOMEM; + } + + gr->pin = rt_pin_get_named_pin(dev, RT_NULL, 0, RT_NULL, &gr->active_value); + + if (gr->pin < 0) + { + err = gr->pin; + goto _fail; + } + + gr->active_delay_ms = 100; + gr->inactive_delay_ms = 100; + gr->wait_delay_ms = 3000; + + rt_dm_dev_prop_read_u32(dev, "active-delay", &gr->active_delay_ms); + rt_dm_dev_prop_read_u32(dev, "inactive-delay", &gr->inactive_delay_ms); + rt_dm_dev_prop_read_u32(dev, "wait-delay", &gr->wait_delay_ms); + + dev->user_data = gr; + + if ((err = rt_dm_power_off_handler(dev, RT_DM_POWER_OFF_MODE_RESET, + RT_DM_POWER_OFF_PRIO_DEFAULT, gpio_restart_do_restart))) + { + goto _fail; + } + + return RT_EOK; + +_fail: + rt_free(gr); + + return err; +} + +static const struct rt_ofw_node_id gpio_restart_ofw_ids[] = +{ + { .compatible = "gpio-restart" }, + { /* sentinel */ } +}; + +static struct rt_platform_driver gpio_restart_driver = +{ + .name = "reset-gpio-restart", + .ids = gpio_restart_ofw_ids, + + .probe = gpio_restart_probe, +}; +RT_PLATFORM_DRIVER_EXPORT(gpio_restart_driver); diff --git a/components/drivers/power/reset/reboot-mode.c b/components/drivers/power/reset/reboot-mode.c new file mode 100644 index 0000000000..d2a65f53fb --- /dev/null +++ b/components/drivers/power/reset/reboot-mode.c @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include "reboot-mode.h" + +#define MODE_SUFFIXE "mode-" + +struct mode_info +{ + rt_slist_t list; + + const char *mode; + rt_uint32_t magic; +}; + +static rt_err_t reboot_mode_work(struct rt_device *dev, char *cmd) +{ + struct mode_info *info; + struct reboot_mode *reboot = (void *)dev; + + cmd = cmd ? : "normal"; + + rt_slist_for_each_entry(info, &reboot->mode_nodes, list) + { + if (!rt_strcmp(info->mode, cmd)) + { + reboot->write(reboot, info->magic); + break; + } + } + + return RT_EOK; +} + +rt_err_t reboot_mode_register(struct reboot_mode *reboot) +{ + rt_err_t err; + struct mode_info *info; + struct rt_ofw_prop *prop; + struct rt_ofw_node *np = reboot->dev->ofw_node; + const int mode_suffixe_len = sizeof(MODE_SUFFIXE) - 1; + + if (!reboot || !reboot->dev) + { + return -RT_EINVAL; + } + + rt_slist_init(&reboot->mode_nodes); + + rt_ofw_foreach_prop(np, prop) + { + if (rt_strncmp(prop->name, MODE_SUFFIXE, mode_suffixe_len)) + { + continue; + } + + info = rt_malloc(sizeof(*info)); + + if (!info) + { + err = -RT_ENOMEM; + + goto _end; + } + + info->mode = prop->name + mode_suffixe_len; + info->magic = fdt32_to_cpu(*(const fdt32_t *)prop->value); + + rt_slist_init(&info->list); + + rt_slist_insert(&reboot->mode_nodes, &info->list); + } + + err = rt_dm_reboot_mode_register((void *)reboot, &reboot_mode_work); + +_end: + if (err) + { + struct mode_info *prev_info = RT_NULL; + + rt_slist_for_each_entry(info, &reboot->mode_nodes, list) + { + if (prev_info) + { + rt_free(prev_info); + } + + prev_info = info; + } + + if (prev_info) + { + rt_free(prev_info); + } + } + + return err; +} diff --git a/components/drivers/power/reset/reboot-mode.h b/components/drivers/power/reset/reboot-mode.h new file mode 100644 index 0000000000..3035882036 --- /dev/null +++ b/components/drivers/power/reset/reboot-mode.h @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#ifndef __RESET_REBOOT_MODE_H__ +#define __RESET_REBOOT_MODE_H__ + +#include <rtthread.h> +#include <rtdevice.h> + +struct reboot_mode +{ + rt_slist_t mode_nodes; + + struct rt_device *dev; + rt_err_t (*write)(struct reboot_mode *reboot, rt_uint32_t magic); +}; + +rt_err_t reboot_mode_register(struct reboot_mode *reboot); + +#endif /* __RESET_REBOOT_MODE_H__ */ diff --git a/components/drivers/power/reset/syscon-poweroff.c b/components/drivers/power/reset/syscon-poweroff.c new file mode 100644 index 0000000000..aaa8d25b6e --- /dev/null +++ b/components/drivers/power/reset/syscon-poweroff.c @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include <rtthread.h> +#include <rtdevice.h> + +#define DBG_TAG "reset.syscon.poweroff" +#define DBG_LVL DBG_INFO +#include <rtdbg.h> + +static struct rt_syscon *syscon; +static rt_uint32_t offset, value, mask; + +static void syscon_poweroff(void) +{ + /* Issue the poweroff */ + rt_syscon_update_bits(syscon, offset, mask, value); + + rt_thread_mdelay(1000); + + LOG_E("Unable to poweroff system"); +} + +static rt_err_t syscon_poweroff_probe(struct rt_platform_device *pdev) +{ + rt_err_t mask_err, value_err; + struct rt_ofw_node *np = pdev->parent.ofw_node; + + syscon = rt_syscon_find_by_ofw_phandle(np, "regmap"); + + if (!syscon) + { + return -RT_ERROR; + } + + if (rt_ofw_prop_read_u32(np, "offset", &offset)) + { + LOG_E("read '%s' fail", "offset"); + + return -RT_EINVAL; + } + + value_err = rt_ofw_prop_read_u32(np, "value", &value); + mask_err = rt_ofw_prop_read_u32(np, "mask", &mask); + + if (value_err && mask_err) + { + LOG_E("read '%s' and '%s' fail", "value", "mask"); + + return -RT_EINVAL; + } + + if (value_err) + { + /* support old binding */ + value = mask; + mask = 0xffffffff; + } + else if (mask_err) + { + /* support value without mask */ + mask = 0xffffffff; + } + + if (rt_dm_machine_shutdown) + { + LOG_E("rt_dm_machine_shutdown have hook %p", rt_dm_machine_shutdown); + + return -RT_EBUSY; + } + + rt_dm_machine_shutdown = syscon_poweroff; + + return RT_EOK; +} + +static const struct rt_ofw_node_id syscon_poweroff_ofw_ids[] = +{ + { .compatible = "syscon-poweroff" }, + { /* sentinel */ } +}; + +static struct rt_platform_driver syscon_poweroff_driver = +{ + .name = "reset-syscon-poweroff", + .ids = syscon_poweroff_ofw_ids, + + .probe = syscon_poweroff_probe, +}; + +static int syscon_poweroff_driver_register(void) +{ + rt_platform_driver_register(&syscon_poweroff_driver); + + return 0; +} +INIT_SUBSYS_EXPORT(syscon_poweroff_driver_register); diff --git a/components/drivers/power/reset/syscon-reboot-mode.c b/components/drivers/power/reset/syscon-reboot-mode.c new file mode 100644 index 0000000000..da3afc7441 --- /dev/null +++ b/components/drivers/power/reset/syscon-reboot-mode.c @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include <rtthread.h> +#include <rtdevice.h> + +#define DBG_TAG "reset.syscon.reboot-mode" +#define DBG_LVL DBG_INFO +#include <rtdbg.h> + +#include "reboot-mode.h" + +struct syscon_reboot_mode +{ + struct rt_syscon *map; + + struct reboot_mode reboot; + + rt_uint32_t offset; + rt_uint32_t mask; +}; + +static rt_err_t syscon_reboot_mode_write(struct reboot_mode *reboot, + rt_uint32_t magic) +{ + rt_err_t err; + struct syscon_reboot_mode *srbm; + + srbm = rt_container_of(reboot, struct syscon_reboot_mode, reboot); + + err = rt_syscon_update_bits(srbm->map, srbm->offset, srbm->mask, magic); + + if (err) + { + LOG_E("Update reboot mode bits failed"); + } + + return err; +} + +static rt_err_t syscon_reboot_mode_probe(struct rt_platform_device *pdev) +{ + rt_err_t err; + struct rt_ofw_node *np; + struct rt_device *dev = &pdev->parent; + struct syscon_reboot_mode *srbm = rt_calloc(1, sizeof(*srbm)); + + if (!srbm) + { + return -RT_ENOMEM; + } + + np = rt_ofw_get_parent(dev->ofw_node); + srbm->map = rt_syscon_find_by_ofw_node(np); + rt_ofw_node_put(np); + + if (!srbm->map) + { + err = -RT_EIO; + goto _fail; + } + + srbm->reboot.dev = dev; + srbm->reboot.write = syscon_reboot_mode_write; + srbm->mask = 0xffffffff; + + if (rt_dm_dev_prop_read_u32(dev, "offset", &srbm->offset)) + { + err = -RT_EINVAL; + goto _fail; + } + + rt_dm_dev_prop_read_u32(dev, "mask", &srbm->mask); + + if ((err = reboot_mode_register(&srbm->reboot))) + { + goto _fail; + } + + return RT_EOK; + +_fail: + rt_free(srbm); + + return err; +} + +static const struct rt_ofw_node_id syscon_reboot_mode_ofw_ids[] = +{ + { .compatible = "syscon-reboot-mode" }, + { /* sentinel */ } +}; + +static struct rt_platform_driver syscon_reboot_mode_driver = +{ + .name = "reset-syscon-reboot-mode", + .ids = syscon_reboot_mode_ofw_ids, + + .probe = syscon_reboot_mode_probe, +}; + +static int syscon_reboot_mode_driver_register(void) +{ + rt_platform_driver_register(&syscon_reboot_mode_driver); + + return 0; +} +INIT_SUBSYS_EXPORT(syscon_reboot_mode_driver_register); diff --git a/components/drivers/power/reset/syscon-reboot.c b/components/drivers/power/reset/syscon-reboot.c new file mode 100644 index 0000000000..b4151b4d78 --- /dev/null +++ b/components/drivers/power/reset/syscon-reboot.c @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include <rtthread.h> +#include <rtdevice.h> + +#define DBG_TAG "reset.syscon.reboot" +#define DBG_LVL DBG_INFO +#include <rtdbg.h> + +static struct rt_syscon *syscon; +static rt_uint32_t offset, value, mask; + +static void syscon_reboot(void) +{ + /* Issue the reboot */ + rt_syscon_update_bits(syscon, offset, mask, value); + + rt_thread_mdelay(1000); + + LOG_E("Unable to restart system"); +} + +static rt_err_t syscon_reboot_probe(struct rt_platform_device *pdev) +{ + rt_err_t mask_err, value_err; + struct rt_ofw_node *np = pdev->parent.ofw_node; + + syscon = rt_syscon_find_by_ofw_phandle(np, "regmap"); + + if (!syscon) + { + return -RT_ERROR; + } + + if (rt_ofw_prop_read_u32(np, "offset", &offset)) + { + LOG_E("read '%s' fail", "offset"); + + return -RT_EINVAL; + } + + value_err = rt_ofw_prop_read_u32(np, "value", &value); + mask_err = rt_ofw_prop_read_u32(np, "mask", &mask); + + if (value_err && mask_err) + { + LOG_E("read '%s' and '%s' fail", "value", "mask"); + + return -RT_EINVAL; + } + + if (value_err) + { + /* support old binding */ + value = mask; + mask = 0xffffffff; + } + else if (mask_err) + { + /* support value without mask */ + mask = 0xffffffff; + } + + if (rt_dm_machine_reset) + { + LOG_E("rt_dm_machine_reset have hook %p", rt_dm_machine_reset); + + return -RT_EBUSY; + } + + rt_dm_machine_reset = syscon_reboot; + + return RT_EOK; +} + +static const struct rt_ofw_node_id syscon_reboot_ofw_ids[] = +{ + { .compatible = "syscon-reboot" }, + { /* sentinel */ } +}; + +static struct rt_platform_driver syscon_reboot_driver = +{ + .name = "reset-syscon-reboot", + .ids = syscon_reboot_ofw_ids, + + .probe = syscon_reboot_probe, +}; + +static int syscon_reboot_driver_register(void) +{ + rt_platform_driver_register(&syscon_reboot_driver); + + return 0; +} +INIT_SUBSYS_EXPORT(syscon_reboot_driver_register); diff --git a/components/drivers/power/supply/Kconfig b/components/drivers/power/supply/Kconfig index be78289018..b03ffa1e05 100644 --- a/components/drivers/power/supply/Kconfig +++ b/components/drivers/power/supply/Kconfig @@ -15,6 +15,21 @@ if RT_USING_POWER_SUPPLY comment "Power Supply Device Drivers" endif +config RT_POWER_SUPPLY_EMU + bool "Emulator battery(thermal)/charger" + depends on RT_USING_POWER_SUPPLY + depends on RT_USING_PM + depends on RT_USING_CONSOLE + depends on RT_USING_MSH + depends on RT_USING_CPU_USAGE_TRACER + default n + +config RT_POWER_SUPPLY_CHARGER_GPIO + bool "GPIO charger" + depends on RT_USING_POWER_SUPPLY + depends on RT_USING_PIN + default y + if RT_USING_POWER_SUPPLY osource "$(SOC_DM_POWER_SUPPLY_DIR)/Kconfig" endif diff --git a/components/drivers/power/supply/SConscript b/components/drivers/power/supply/SConscript index a8c082c0db..5039b34f04 100644 --- a/components/drivers/power/supply/SConscript +++ b/components/drivers/power/supply/SConscript @@ -13,6 +13,12 @@ src = ['supply.c'] if GetDepend(['RT_POWER_SUPPLY_DAEMON']): src += ['supply-daemon.c'] +if GetDepend(['RT_POWER_SUPPLY_EMU']): + src += ['emu-power.c'] + +if GetDepend(['RT_POWER_SUPPLY_CHARGER_GPIO']): + src += ['gpio-charger.c'] + group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH) Return('group') diff --git a/components/drivers/power/supply/emu-power.c b/components/drivers/power/supply/emu-power.c new file mode 100644 index 0000000000..f28438cd92 --- /dev/null +++ b/components/drivers/power/supply/emu-power.c @@ -0,0 +1,379 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include <rtthread.h> +#include <rtdevice.h> +#include <drivers/misc.h> + +#define POLL_INTERVAL_MS 3000 +#define CHARGE_STEP_FAST 4 +#define CHARGE_STEP_NORMAL 2 +#define CHARGE_STEP_TRICKLE 1 +#define DISCHARGE_BASE_RATE 1 +#define TEMP_SENSITIVITY 30 + +struct emu_power +{ + struct rt_device parent; + + struct rt_power_supply battery; + struct rt_power_supply charger; + + struct rt_timer poller; + + rt_uint32_t status; + rt_uint32_t health; + rt_uint32_t present; + rt_uint32_t capacity; + rt_uint32_t voltage; + rt_uint32_t temp; + rt_uint32_t charge_counter; + rt_uint32_t current_now; + rt_uint32_t current_avg; + rt_uint32_t charge_full_uah; + rt_uint32_t cycle_count; + rt_uint32_t ac_online; + rt_uint32_t voltage_max; + rt_uint32_t current_max; + + rt_tick_t last_poll_tick; + + rt_uint8_t load_index; + rt_ubase_t cpu_load; + rt_ubase_t load_history[5]; + rt_ubase_t last_idle; + rt_ubase_t last_total; +}; +static struct emu_power _emu_power; + +static enum rt_power_supply_property emu_battery_properties[] = +{ + RT_POWER_SUPPLY_PROP_STATUS, + RT_POWER_SUPPLY_PROP_HEALTH, + RT_POWER_SUPPLY_PROP_PRESENT, + RT_POWER_SUPPLY_PROP_TECHNOLOGY, + RT_POWER_SUPPLY_PROP_CAPACITY, + RT_POWER_SUPPLY_PROP_VOLTAGE_NOW, + RT_POWER_SUPPLY_PROP_TEMP, + RT_POWER_SUPPLY_PROP_CHARGE_COUNTER, + RT_POWER_SUPPLY_PROP_CURRENT_NOW, + RT_POWER_SUPPLY_PROP_CURRENT_AVG, + RT_POWER_SUPPLY_PROP_CHARGE_FULL, + RT_POWER_SUPPLY_PROP_CYCLE_COUNT, + RT_POWER_SUPPLY_PROP_SCOPE, +}; + +static struct rt_power_supply_battery_info emu_battery_info = +{ + .technology = RT_POWER_SUPPLY_TECHNOLOGY_LION, + .energy_full_design_uwh = 3000000000, /* 3000mWh */ + .charge_full_design_uah = 3000000, /* 3000mAh */ + .voltage_min_design_uv = 3000000, /* 3.0V */ + .voltage_max_design_uv = 4200000, /* 4.2V */ + .precharge_current_ua = 500000, /* 500mA */ + .charge_term_current_ua = 1000000, /* 1000mA */ + .charge_restart_voltage_uv = 3500000, /* 3.5V */ + .constant_charge_current_max_ua = 2000000, /* 2000mA */ + .constant_charge_voltage_max_uv = 4200000, /* 4.2V */ + .temp_ambient_alert_min = -10000, /* -10C */ + .temp_ambient_alert_max = 40000, /* 40C */ + .temp_alert_min = 20000, /* 20C */ + .temp_alert_max = 25000, /* 25C */ + .temp_min = 0, /* 0C */ + .temp_max = 35000, /* 35C */ +}; + +static rt_err_t emu_battery_get_property(struct rt_power_supply *psy, + enum rt_power_supply_property prop, union rt_power_supply_property_val *val) +{ + struct emu_power *ep = rt_container_of(psy, struct emu_power, battery); + + switch (prop) + { + case RT_POWER_SUPPLY_PROP_STATUS: + val->intval = ep->status; + break; + + case RT_POWER_SUPPLY_PROP_HEALTH: + val->intval = ep->health; + break; + + case RT_POWER_SUPPLY_PROP_PRESENT: + val->intval = ep->present; + break; + + case RT_POWER_SUPPLY_PROP_TECHNOLOGY: + val->intval = RT_POWER_SUPPLY_TECHNOLOGY_LION; + break; + + case RT_POWER_SUPPLY_PROP_CAPACITY: + val->intval = ep->capacity; + break; + + case RT_POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = ep->voltage; + break; + + case RT_POWER_SUPPLY_PROP_TEMP: + val->intval = ep->temp; + break; + + case RT_POWER_SUPPLY_PROP_CHARGE_COUNTER: + val->intval = ep->charge_counter; + break; + + case RT_POWER_SUPPLY_PROP_CURRENT_NOW: + val->intval = ep->current_now; + break; + + case RT_POWER_SUPPLY_PROP_CURRENT_AVG: + val->intval = ep->current_avg; + break; + + case RT_POWER_SUPPLY_PROP_CHARGE_FULL: + val->intval = ep->charge_full_uah; + break; + + case RT_POWER_SUPPLY_PROP_CYCLE_COUNT: + val->intval = ep->cycle_count; + break; + + case RT_POWER_SUPPLY_PROP_SCOPE: + val->intval = RT_POWER_SUPPLY_SCOPE_SYSTEM; + break; + + default: + return -RT_EINVAL; + } + + return RT_EOK; +} + +static const struct rt_power_supply_ops emu_battery_ops = +{ + .get_property = emu_battery_get_property, +}; + +static enum rt_power_supply_property emu_charger_properties[] = +{ + RT_POWER_SUPPLY_PROP_ONLINE, + RT_POWER_SUPPLY_PROP_VOLTAGE_MAX, + RT_POWER_SUPPLY_PROP_CURRENT_MAX, +}; + +static rt_err_t emu_charger_get_property(struct rt_power_supply *psy, + enum rt_power_supply_property prop, union rt_power_supply_property_val *val) +{ + struct emu_power *ep = rt_container_of(psy, struct emu_power, charger); + + switch (prop) + { + case RT_POWER_SUPPLY_PROP_ONLINE: + val->intval = ep->ac_online; + break; + + case RT_POWER_SUPPLY_PROP_VOLTAGE_MAX: + val->intval = ep->voltage_max; + break; + + case RT_POWER_SUPPLY_PROP_CURRENT_MAX: + val->intval = ep->current_max; + break; + + default: + return -RT_ENOSYS; + } + + return RT_EOK; +} + +static const struct rt_power_supply_ops emu_charger_ops = +{ + .get_property = emu_charger_get_property, +}; + +static void emu_power_poll(void *param) +{ + rt_tick_t current_tick; + rt_uint32_t elapsed_ms, avg_load = 0; + rt_ubase_t current_idle, current_total, idle_diff, total_diff; + struct rt_cpu_usage_stats *stats = &rt_cpu_self()->cpu_stat; + struct emu_power *ep = param; + + current_tick = rt_tick_get(); + elapsed_ms = (current_tick - ep->last_poll_tick) * (1000 / RT_TICK_PER_SECOND); + ep->last_poll_tick = current_tick; + + current_idle = stats->idle; + current_total = stats->user + stats->system + stats->irq + current_idle; + + idle_diff = current_idle - ep->last_idle; + total_diff = current_total - ep->last_total; + + ep->last_idle = current_idle; + ep->last_total = current_total; + + if (total_diff > 0) + { + ep->cpu_load = 100 - (idle_diff * 100) / total_diff; + } + else + { + ep->cpu_load = 0; + } + ep->cpu_load = rt_clamp((rt_ubase_t)ep->cpu_load, 0UL, 100UL); + + ep->load_history[ep->load_index++ % RT_ARRAY_SIZE(ep->load_history)] = ep->cpu_load; + + for (int i = 0; i < RT_ARRAY_SIZE(ep->load_history); i++) + { + avg_load += ep->load_history[i]; + } + avg_load /= RT_ARRAY_SIZE(ep->load_history); + + if (ep->ac_online) + { + int step; + + if (ep->capacity < 80) + { + step = CHARGE_STEP_FAST; + ep->current_now = 2000000; + } + else if (ep->capacity < 95) + { + step = CHARGE_STEP_NORMAL; + ep->current_now = 1000000; + } + else + { + step = CHARGE_STEP_TRICKLE; + ep->current_now = 500000; + } + + ep->capacity = rt_min_t(rt_uint32_t, + ep->capacity + (step * elapsed_ms) / POLL_INTERVAL_MS, 100); + + ep->voltage = emu_battery_info.voltage_max_design_uv - (100 - ep->capacity) * 30; + + if (ep->capacity >= 100) + { + ep->status = RT_POWER_SUPPLY_STATUS_FULL; + } + else + { + ep->status = RT_POWER_SUPPLY_STATUS_CHARGING; + } + } + else + { + int drain = (avg_load * DISCHARGE_BASE_RATE * elapsed_ms) / 1000; + + ep->capacity = rt_max_t(rt_uint32_t, ep->capacity - drain, 0); + ep->current_now = -(500000 + (avg_load * 5000)); + ep->voltage = emu_battery_info.voltage_min_design_uv + ep->capacity * 1200; + + ep->status = (ep->capacity > 0) ? + RT_POWER_SUPPLY_STATUS_DISCHARGING : RT_POWER_SUPPLY_STATUS_NOT_CHARGING; + } + + ep->temp = 25000 + (ep->current_now / 1000) * TEMP_SENSITIVITY; + ep->temp = rt_clamp((rt_uint32_t)ep->temp, + (rt_uint32_t)emu_battery_info.temp_min, (rt_uint32_t)emu_battery_info.temp_max); + + rt_power_supply_changed(&ep->charger); + rt_power_supply_changed(&ep->battery); +} + +static int emu_power_init(void) +{ + struct rt_cpu_usage_stats *stats = &rt_cpu_self()->cpu_stat; + struct emu_power *ep = &_emu_power; + + rt_memset(ep, 0, sizeof(*ep)); + + rt_dm_dev_set_name(&ep->parent, "emu-power"); + + ep->battery.dev = &ep->parent, + ep->battery.type = RT_POWER_SUPPLY_TYPE_BATTERY, + ep->battery.properties_nr = RT_ARRAY_SIZE(emu_battery_properties), + ep->battery.properties = emu_battery_properties, + ep->battery.battery_info = &emu_battery_info, + ep->battery.ops = &emu_battery_ops, + + ep->charger.dev = &ep->parent, + ep->charger.type = RT_POWER_SUPPLY_TYPE_USB_SDP, + ep->charger.properties_nr = RT_ARRAY_SIZE(emu_charger_properties), + ep->charger.properties = emu_charger_properties, + ep->charger.ops = &emu_charger_ops, + + ep->status = RT_POWER_SUPPLY_STATUS_DISCHARGING; + ep->health = RT_POWER_SUPPLY_HEALTH_GOOD; + ep->present = 1; + ep->capacity = 100; + ep->voltage = 3800000; + ep->voltage_max = emu_battery_info.voltage_max_design_uv; + ep->current_max = emu_battery_info.constant_charge_current_max_ua; + ep->temp = 25000; + ep->last_poll_tick = rt_tick_get(); + ep->last_idle = stats->idle; + ep->last_total = stats->user + stats->system + stats->irq + stats->idle; + + rt_power_supply_register(&ep->battery); + rt_power_supply_register(&ep->charger); + + rt_timer_init(&ep->poller, ep->parent.parent.name, &emu_power_poll, ep, + rt_tick_from_millisecond(POLL_INTERVAL_MS), RT_TIMER_FLAG_PERIODIC); + rt_timer_start(&ep->poller); + + return 0; +} +INIT_DEVICE_EXPORT(emu_power_init); + +static int emu_charger(int argc, char**argv) +{ + rt_base_t level; + struct emu_power *ep = &_emu_power; + + if (argc != 2) + { + goto _help; + } + + level = rt_hw_interrupt_disable(); + + if (!rt_strcmp(argv[1], "on")) + { + ep->status = RT_POWER_SUPPLY_STATUS_CHARGING; + ep->ac_online = 1; + ep->current_max = emu_battery_info.constant_charge_current_max_ua; + } + else if (!rt_strcmp(argv[1], "off")) + { + ep->status = RT_POWER_SUPPLY_STATUS_DISCHARGING; + ep->ac_online = 0; + ep->current_max = 0; + } + else + { + rt_hw_interrupt_enable(level); + goto _help; + } + + rt_hw_interrupt_enable(level); + + return 0; + +_help: + rt_kprintf("Usage: %s [on|off]\n", __func__); + + return -1; +} +MSH_CMD_EXPORT(emu_charger, emu charger switch); diff --git a/components/drivers/power/supply/gpio-charger.c b/components/drivers/power/supply/gpio-charger.c new file mode 100644 index 0000000000..1843a959a4 --- /dev/null +++ b/components/drivers/power/supply/gpio-charger.c @@ -0,0 +1,346 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2023-02-25 GuEe-GUI the first version + */ + +#include <rtthread.h> +#include <rtdevice.h> + +struct gpio_desc +{ + rt_base_t pin; + rt_uint8_t flags; +}; + +rt_packed(struct gpio_mapping +{ + rt_uint32_t limit_ua; + rt_uint32_t gpiodata; +}); + +struct gpio_charger +{ + struct rt_power_supply parent; + + struct gpio_desc gpiod; + struct gpio_desc charge_status; + + rt_ssize_t current_limit_gpios_nr; + struct gpio_desc *current_limit_gpios; + struct gpio_mapping *current_limit_map; + + rt_uint32_t current_limit_map_size; + rt_uint32_t charge_current_limit; + + /* To be fill */ + enum rt_power_supply_property gpio_charger_properties[3]; +}; + +static rt_err_t set_charge_current_limit(struct gpio_charger *gpioc, int val) +{ + int i; + struct gpio_mapping mapping; + struct gpio_desc *gpios = gpioc->current_limit_gpios; + + if (!gpioc->current_limit_map_size) + { + return -RT_EINVAL; + } + + for (i = 0; i < gpioc->current_limit_map_size; i++) + { + if (gpioc->current_limit_map[i].limit_ua <= val) + { + break; + } + } + mapping = gpioc->current_limit_map[i]; + + for (i = 0; i < gpioc->current_limit_gpios_nr; i++) + { + rt_bool_t val = (mapping.gpiodata >> i) & 1; + struct gpio_desc *gpio = &gpios[gpioc->current_limit_gpios_nr - i - 1]; + + rt_pin_mode(gpio->pin, PIN_MODE_OUTPUT); + rt_pin_write(gpio->pin, val ? gpio->flags : !gpio->flags); + } + + gpioc->charge_current_limit = mapping.limit_ua; + + return RT_EOK; +} + +static rt_err_t gpio_charger_get_property(struct rt_power_supply *psy, + enum rt_power_supply_property prop, union rt_power_supply_property_val *val) +{ + struct gpio_charger *gpioc = rt_container_of(psy, struct gpio_charger, parent); + + switch (prop) + { + case RT_POWER_SUPPLY_PROP_ONLINE: + rt_pin_mode(gpioc->gpiod.pin, PIN_MODE_INPUT); + val->intval = rt_pin_read(gpioc->gpiod.pin) == gpioc->gpiod.flags; + break; + + case RT_POWER_SUPPLY_PROP_STATUS: + rt_pin_mode(gpioc->charge_status.pin, PIN_MODE_INPUT); + if (rt_pin_read(gpioc->charge_status.pin) == gpioc->charge_status.flags) + { + val->intval = RT_POWER_SUPPLY_STATUS_CHARGING; + } + else + { + val->intval = RT_POWER_SUPPLY_STATUS_NOT_CHARGING; + } + break; + + case RT_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: + val->intval = gpioc->charge_current_limit; + break; + + default: + return -RT_ENOSYS; + } + + return RT_EOK; +} + +static rt_err_t gpio_charger_set_property(struct rt_power_supply *psy, + enum rt_power_supply_property prop, const union rt_power_supply_property_val *val) +{ + struct gpio_charger *gpioc = rt_container_of(psy, struct gpio_charger, parent); + + switch (prop) + { + case RT_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: + return set_charge_current_limit(gpioc, val->intval); + + default: + return -EINVAL; + } + + return RT_EOK; +} + +static const struct rt_power_supply_ops gpio_charger_ops = +{ + .get_property = gpio_charger_get_property, + .set_property = gpio_charger_set_property, +}; + +static void gpio_charger_isr(void *args) +{ + struct gpio_charger *gpioc = args; + + rt_power_supply_changed(&gpioc->parent); +} + +static rt_err_t init_charge_current_limit(struct rt_device *dev, + struct gpio_charger *gpioc) +{ + rt_ssize_t len; + rt_uint32_t cur_limit = RT_UINT32_MAX; + + gpioc->current_limit_gpios_nr = rt_pin_get_named_pin_count(dev, "charge-current-limit"); + if (gpioc->current_limit_gpios_nr <= 0) + { + return gpioc->current_limit_gpios_nr; + } + + gpioc->current_limit_gpios = rt_malloc(gpioc->current_limit_gpios_nr * + sizeof(*gpioc->current_limit_gpios)); + if (!gpioc->current_limit_gpios) + { + return RT_EOK; + } + + len = rt_dm_dev_prop_count_of_u32(dev, "charge-current-limit-mapping"); + if (len < 0) + { + return len; + } + + if (len == 0 || len % 2) + { + return -RT_EINVAL; + } + gpioc->current_limit_map_size = len / 2; + + gpioc->current_limit_map = rt_malloc(gpioc->current_limit_map_size * + sizeof(*gpioc->current_limit_map)); + if (!gpioc->current_limit_map) + { + return -RT_ENOMEM; + } + + len = rt_dm_dev_prop_read_u32_array_index(dev, "charge-current-limit-mapping", + 0, (int)len, (rt_uint32_t *)(void *)gpioc->current_limit_map); + if (len < 0) + { + return len; + } + + for (int i = 0; i < gpioc->current_limit_map_size; ++i) + { + if (gpioc->current_limit_map[i].limit_ua > cur_limit) + { + return -RT_EINVAL; + } + + cur_limit = gpioc->current_limit_map[i].limit_ua; + } + + /* Default to smallest current limitation for safety reasons */ + len = gpioc->current_limit_map_size - 1; + set_charge_current_limit(gpioc, gpioc->current_limit_map[len].limit_ua); + + return RT_EOK; +} + +static rt_err_t gpio_charger_probe(struct rt_platform_device *pdev) +{ + rt_err_t err; + int num_props = 0; + const char *chargetype; + struct gpio_charger *gpioc; + struct rt_device *dev = &pdev->parent; + + gpioc = rt_calloc(1, sizeof(*gpioc)); + + if (!gpioc) + { + return -RT_ENOMEM; + } + + gpioc->gpiod.pin = rt_pin_get_named_pin(dev, RT_NULL, 0, RT_NULL, &gpioc->gpiod.flags); + + if (gpioc->gpiod.pin < 0 && gpioc->gpiod.pin != -RT_EEMPTY) + { + err = -RT_EINVAL; + goto _fail; + } + + if (gpioc->gpiod.pin >= 0) + { + gpioc->gpio_charger_properties[num_props] = RT_POWER_SUPPLY_PROP_ONLINE; + ++num_props; + } + + gpioc->charge_status.pin = rt_pin_get_named_pin(dev, "charge-status", 0, + RT_NULL, &gpioc->charge_status.flags); + + if (gpioc->charge_status.pin < 0 && gpioc->charge_status.pin != -RT_EEMPTY) + { + err = -RT_EINVAL; + goto _fail; + } + + if (gpioc->charge_status.pin >= 0) + { + gpioc->gpio_charger_properties[num_props] = RT_POWER_SUPPLY_PROP_STATUS; + ++num_props; + } + + if ((err = init_charge_current_limit(dev, gpioc))) + { + goto _fail; + } + + if (gpioc->current_limit_map) + { + gpioc->gpio_charger_properties[num_props] = RT_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX; + ++num_props; + } + + if (!rt_dm_dev_prop_read_string(dev, "charger-type", &chargetype)) + { + if (!rt_strcmp("unknown", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_UNKNOWN; + } + else if (!rt_strcmp("battery", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_BATTERY; + } + else if (!rt_strcmp("ups", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_UPS; + } + else if (!rt_strcmp("mains", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_MAINS; + } + else if (!rt_strcmp("usb-sdp", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_USB_SDP; + } + else if (!rt_strcmp("usb-dcp", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_USB_DCP; + } + else if (!rt_strcmp("usb-cdp", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_USB_CDP; + } + else if (!rt_strcmp("usb-aca", chargetype)) + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_USB_ACA; + } + else + { + gpioc->parent.type = RT_POWER_SUPPLY_TYPE_UNKNOWN; + } + } + + gpioc->parent.dev = dev, + gpioc->parent.properties_nr = num_props, + gpioc->parent.properties = gpioc->gpio_charger_properties, + gpioc->parent.ops = &gpio_charger_ops; + + if ((err = rt_power_supply_register(&gpioc->parent))) + { + goto _fail; + } + + rt_pin_mode(gpioc->gpiod.pin, PIN_MODE_INPUT); + rt_pin_attach_irq(gpioc->gpiod.pin, PIN_IRQ_MODE_RISING, gpio_charger_isr, gpioc); + rt_pin_irq_enable(gpioc->gpiod.pin, RT_TRUE); + + rt_pin_mode(gpioc->charge_status.pin, PIN_MODE_INPUT); + rt_pin_attach_irq(gpioc->charge_status.pin, PIN_IRQ_MODE_RISING, gpio_charger_isr, gpioc); + rt_pin_irq_enable(gpioc->charge_status.pin, RT_TRUE); + + return RT_EOK; +_fail: + if (gpioc->current_limit_map) + { + rt_free(gpioc->current_limit_map); + } + if (gpioc->current_limit_gpios) + { + rt_free(gpioc->current_limit_gpios); + } + rt_free(gpioc); + + return err; +} + +static const struct rt_ofw_node_id gpio_charger_ofw_ids[] = +{ + { .compatible = "gpio-charger" }, + { /* sentinel */ } +}; + +static struct rt_platform_driver gpio_charger_driver = +{ + .name = "gpio-charger", + .ids = gpio_charger_ofw_ids, + + .probe = gpio_charger_probe, +}; +RT_PLATFORM_DRIVER_EXPORT(gpio_charger_driver); |
