diff options
Diffstat (limited to 'zephyr/projects/nissa/pujjo/src/fan.c')
-rw-r--r-- | zephyr/projects/nissa/pujjo/src/fan.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/zephyr/projects/nissa/pujjo/src/fan.c b/zephyr/projects/nissa/pujjo/src/fan.c new file mode 100644 index 0000000000..1884380de8 --- /dev/null +++ b/zephyr/projects/nissa/pujjo/src/fan.c @@ -0,0 +1,43 @@ +/* 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/devicetree.h> +#include <zephyr/drivers/gpio.h> +#include <zephyr/logging/log.h> + +#include "cros_cbi.h" +#include "fan.h" +#include "gpio/gpio.h" +#include "hooks.h" + +#include "nissa_common.h" + +LOG_MODULE_DECLARE(nissa, CONFIG_NISSA_LOG_LEVEL); + +/* + * Pujjo fan support + */ +static void fan_init(void) +{ + int ret; + uint32_t val; + /* + * Retrieve the fan config. + */ + ret = cros_cbi_get_fw_config(FW_FAN, &val); + if (ret != 0) { + LOG_ERR("Error retrieving CBI FW_CONFIG field %d", FW_FAN); + return; + } + if (val != FW_FAN_PRESENT) { + /* Disable the fan */ + fan_set_count(0); + } else { + /* Configure the fan enable GPIO */ + gpio_pin_configure_dt(GPIO_DT_FROM_NODELABEL(gpio_fan_enable), + GPIO_OUTPUT); + } +} +DECLARE_HOOK(HOOK_INIT, fan_init, HOOK_PRIO_POST_FIRST); |