From 8e885a57b13a2cced5de68db98712f6af53591de Mon Sep 17 00:00:00 2001 From: Maulik V Vaghela Date: Fri, 2 Jul 2021 12:09:42 +0530 Subject: drivers/usb/acpi: Create function to get PLD information Create a separate function to get PLD information from USB device. This is helpful in retimer driver where we can attach same USB port information to retimer instance and we can avoid duplication of information. BUG=None BRANCH=None TEST=Check if code compiles and function returns correct value Change-Id: Iaaf140ce1965dce3a812aa2701ce0e29b34ab3e7 Signed-off-by: Maulik V Vaghela Reviewed-on: https://review.coreboot.org/c/coreboot/+/56024 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh Reviewed-by: Tim Wawrzynczak --- src/drivers/usb/acpi/chip.h | 3 +++ src/drivers/usb/acpi/usb_acpi.c | 28 ++++++++++++++++++++-------- 2 files changed, 23 insertions(+), 8 deletions(-) diff --git a/src/drivers/usb/acpi/chip.h b/src/drivers/usb/acpi/chip.h index 73c69cc89f..41481f1c87 100644 --- a/src/drivers/usb/acpi/chip.h +++ b/src/drivers/usb/acpi/chip.h @@ -68,4 +68,7 @@ struct drivers_usb_acpi_config { struct acpi_gpio privacy_gpio; }; +/* Method to get PLD structure from USB device */ +bool usb_acpi_get_pld(const struct device *usb_device, struct acpi_pld *pld); + #endif /* __USB_ACPI_CHIP_H__ */ diff --git a/src/drivers/usb/acpi/usb_acpi.c b/src/drivers/usb/acpi/usb_acpi.c index 9d68d0a923..a0dadff861 100644 --- a/src/drivers/usb/acpi/usb_acpi.c +++ b/src/drivers/usb/acpi/usb_acpi.c @@ -37,6 +37,7 @@ static void usb_acpi_fill_ssdt_generator(const struct device *dev) { struct drivers_usb_acpi_config *config = dev->chip_info; const char *path = acpi_device_path(dev); + struct acpi_pld pld; if (!path || !config) return; @@ -50,15 +51,10 @@ static void usb_acpi_fill_ssdt_generator(const struct device *dev) acpigen_write_name_string("_DDN", config->desc); acpigen_write_upc(config->type); - if (config->use_custom_pld) { - /* Use board defined PLD */ - acpigen_write_pld(&config->custom_pld); - } else { - /* Fill PLD strucutre based on port type */ - struct acpi_pld pld; - acpi_pld_fill_usb(&pld, config->type, &config->group); + if (usb_acpi_get_pld(dev, &pld)) acpigen_write_pld(&pld); - } + else + printk(BIOS_ERR, "Error retrieving PLD for %s\n", path); /* Resources */ if (usb_acpi_add_gpios_to_crs(config) == true) { @@ -126,3 +122,19 @@ struct chip_operations drivers_usb_acpi_ops = { CHIP_NAME("USB ACPI Device") .enable_dev = usb_acpi_enable }; + +bool usb_acpi_get_pld(const struct device *usb_device, struct acpi_pld *pld) +{ + struct drivers_usb_acpi_config *config = usb_device->chip_info; + + if (!usb_device || !usb_device->chip_info || + usb_device->chip_ops != &drivers_usb_acpi_ops) + return false; + + if (config->use_custom_pld) + memcpy(pld, &config->custom_pld, sizeof(pld)); + else + acpi_pld_fill_usb(pld, config->type, &config->group); + + return true; +} -- cgit v1.2.3