diff options
Diffstat (limited to 'src/drivers/usb')
| -rw-r--r-- | src/drivers/usb/acpi/chip.h | 14 | ||||
| -rw-r--r-- | src/drivers/usb/acpi/usb_acpi.c | 20 |
2 files changed, 32 insertions, 2 deletions
diff --git a/src/drivers/usb/acpi/chip.h b/src/drivers/usb/acpi/chip.h index 8cd926888d..8afdf6fc8e 100644 --- a/src/drivers/usb/acpi/chip.h +++ b/src/drivers/usb/acpi/chip.h @@ -44,7 +44,21 @@ struct drivers_usb_acpi_config { bool use_custom_pld; struct acpi_pld custom_pld; + /* Does the device have a power resource? */ + bool has_power_resource; + + /* GPIO used to take device out of reset or to put it into reset. */ struct acpi_gpio reset_gpio; + /* Delay to be inserted after device is taken out of reset. */ + unsigned int reset_delay_ms; + /* Delay to be inserted after device is put into reset. */ + unsigned int reset_off_delay_ms; + /* GPIO used to enable device. */ + struct acpi_gpio enable_gpio; + /* Delay to be inserted after device is enabled. */ + unsigned int enable_delay_ms; + /* Delay to be inserted after device is disabled. */ + unsigned int enable_off_delay_ms; }; #endif /* __USB_ACPI_CHIP_H__ */ diff --git a/src/drivers/usb/acpi/usb_acpi.c b/src/drivers/usb/acpi/usb_acpi.c index 55ef1d361f..8a597e3e9e 100644 --- a/src/drivers/usb/acpi/usb_acpi.c +++ b/src/drivers/usb/acpi/usb_acpi.c @@ -11,9 +11,10 @@ static bool usb_acpi_add_gpios_to_crs(struct drivers_usb_acpi_config *cfg) { /* - * Return false if reset GPIO is not provided. + * Return false if reset GPIO is not provided or is provided as part of power + * resource. */ - if (cfg->reset_gpio.pin_count == 0) + if (cfg->has_power_resource || cfg->reset_gpio.pin_count == 0) return false; return true; @@ -61,6 +62,21 @@ static void usb_acpi_fill_ssdt_generator(const struct device *dev) acpi_dp_write(dsd); } + if (config->has_power_resource) { + const struct acpi_power_res_params power_res_params = { + &config->reset_gpio, + config->reset_delay_ms, + config->reset_off_delay_ms, + &config->enable_gpio, + config->enable_delay_ms, + config->enable_off_delay_ms, + NULL, + 0, + 0 + }; + acpi_device_add_power_res(&power_res_params); + } + acpigen_pop_len(); printk(BIOS_INFO, "%s: %s at %s\n", path, |