diff options
Diffstat (limited to 'zephyr/projects/trogdor/lazor/src/switchcap.c')
-rw-r--r-- | zephyr/projects/trogdor/lazor/src/switchcap.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/zephyr/projects/trogdor/lazor/src/switchcap.c b/zephyr/projects/trogdor/lazor/src/switchcap.c deleted file mode 100644 index d8205cbcfc..0000000000 --- a/zephyr/projects/trogdor/lazor/src/switchcap.c +++ /dev/null @@ -1,128 +0,0 @@ -/* Copyright 2022 The ChromiumOS Authors - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include <zephyr/drivers/gpio.h> - -#include "common.h" -#include "config.h" -#include "console.h" -#include "driver/ln9310.h" -#include "gpio/gpio_int.h" -#include "hooks.h" -#include "i2c.h" -#include "power/qcom.h" -#include "system.h" -#include "sku.h" - -#define CPRINTS(format, args...) cprints(CC_I2C, format, ##args) -#define CPRINTF(format, args...) cprintf(CC_I2C, format, ##args) - -/* LN9310 switchcap */ -const struct ln9310_config_t ln9310_config = { - .i2c_port = I2C_PORT_POWER, - .i2c_addr_flags = LN9310_I2C_ADDR_0_FLAGS, -}; - -static void switchcap_init(void) -{ - if (board_has_da9313()) { - CPRINTS("Use switchcap: DA9313"); - - /* - * When the chip in power down mode, it outputs high-Z. - * Set pull-down to avoid floating. - */ - gpio_pin_configure_dt(GPIO_DT_FROM_NODELABEL(gpio_da9313_gpio0), - GPIO_INPUT | GPIO_PULL_DOWN); - - /* - * Configure DA9313 enable, push-pull output. Don't set the - * level here; otherwise, it will override its value and - * shutdown the switchcap when sysjump to RW. - */ - gpio_pin_configure_dt(GPIO_DT_FROM_NODELABEL(gpio_switchcap_on), - GPIO_OUTPUT); - } else if (board_has_ln9310()) { - CPRINTS("Use switchcap: LN9310"); - - /* Enable interrupt for LN9310 */ - gpio_enable_dt_interrupt( - GPIO_INT_FROM_NODELABEL(int_switchcap_pg)); - - /* - * Configure LN9310 enable, open-drain output. Don't set the - * level here; otherwise, it will override its value and - * shutdown the switchcap when sysjump to RW. - * - * Note that the gpio.inc configures it GPIO_OUT_LOW. When - * sysjump to RW, will output push-pull a short period of - * time. As it outputs LOW, should be fine. - * - * This GPIO changes like: - * (1) EC boots from RO -> high-Z - * (2) GPIO init according to gpio.inc -> push-pull LOW - * (3) This function configures it -> open-drain HIGH - * (4) Power sequence turns on the switchcap -> open-drain LOW - * (5) EC sysjumps to RW - * (6) GPIO init according to gpio.inc -> push-pull LOW - * (7) This function configures it -> open-drain LOW - */ - gpio_pin_configure_dt(GPIO_DT_FROM_NODELABEL(gpio_switchcap_on), - GPIO_OUTPUT | GPIO_OPEN_DRAIN); - - /* Only configure the switchcap if not sysjump */ - if (!system_jumped_late()) { - /* - * Deassert the enable pin, so the - * switchcap won't be enabled after the switchcap is - * configured from standby mode to switching mode. - */ - gpio_pin_set_dt( - GPIO_DT_FROM_NODELABEL(gpio_switchcap_on), 0); - ln9310_init(); - } - } else if (board_has_buck_ic()) { - CPRINTS("Use Buck IC"); - } else { - CPRINTS("ERROR: No switchcap solution"); - } -} -DECLARE_HOOK(HOOK_INIT, switchcap_init, HOOK_PRIO_DEFAULT); - -void board_set_switchcap_power(int enable) -{ - if (board_has_da9313()) { - gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_switchcap_on), - enable); - } else if (board_has_ln9310()) { - gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_switchcap_on), - enable); - ln9310_software_enable(enable); - } else if (board_has_buck_ic()) { - gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_vbob_en), enable); - } -} - -int board_is_switchcap_enabled(void) -{ - if (board_has_da9313() || board_has_ln9310()) - return gpio_pin_get_dt( - GPIO_DT_FROM_NODELABEL(gpio_switchcap_on)); - - /* Board has buck ic*/ - return gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(gpio_vbob_en)); -} - -int board_is_switchcap_power_good(void) -{ - if (board_has_da9313()) - return gpio_pin_get_dt( - GPIO_DT_FROM_NODELABEL(gpio_da9313_gpio0)); - else if (board_has_ln9310()) - return ln9310_power_good(); - - /* Board has buck ic no way to check POWER GOOD */ - return 1; -} |