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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <acpi/acpi_device.h>
#include <baseboard/variants.h>
#include <console/console.h>
#include <device/device.h>
#include <drivers/amd/i2s_machine_dev/chip.h>
#include <drivers/i2c/generic/chip.h>
#include <drivers/i2c/hid/chip.h>
#include <drivers/usb/acpi/chip.h>
#include <ec/google/chromeec/ec.h>
#include <soc/gpio.h>
#include <soc/iomap.h>
#include <soc/pci_devs.h>
extern struct chip_operations drivers_amd_i2s_machine_dev_ops;
extern struct chip_operations drivers_i2c_generic_ops;
extern struct chip_operations drivers_i2c_hid_ops;
static void update_hp_int_odl(void)
{
static const struct device_path rt5682_path[] = {
{
.type = DEVICE_PATH_PCI,
.pci.devfn = LPC_DEVFN
},
{
.type = DEVICE_PATH_PNP,
.pnp.port = 0xc09,
.pnp.device = 0x0
},
{
.type = DEVICE_PATH_GENERIC,
.generic.id = 0,
.generic.subid = 0
},
{
.type = DEVICE_PATH_I2C,
.i2c.device = 0x1a
}
};
const struct device *rt5682_dev;
struct drivers_i2c_generic_config *cfg;
struct acpi_gpio *gpio;
if (!variant_uses_codec_gpi())
return;
rt5682_dev = find_dev_nested_path(
pci_root_bus(), rt5682_path, ARRAY_SIZE(rt5682_path));
if (!rt5682_dev) {
printk(BIOS_ERR, "%s: Failed to find audio device\n",
__func__);
return;
}
if (rt5682_dev->chip_ops != &drivers_i2c_generic_ops) {
printk(BIOS_ERR, "%s: Incorrect device found\n", __func__);
return;
}
cfg = config_of(rt5682_dev);
gpio = &cfg->irq_gpio;
gpio->pins[0] = 62;
}
static void update_dmic_gpio(void)
{
static const struct device_path acp_machine_path[] = {
{
.type = DEVICE_PATH_PCI,
.pci.devfn = PCIE_GPP_A_DEVFN
},
{
.type = DEVICE_PATH_PCI,
.pci.devfn = AUDIO_DEVFN
},
{
.type = DEVICE_PATH_GENERIC,
.generic.id = 0,
.generic.subid = 0
}
};
const struct device *machine_dev;
struct drivers_amd_i2s_machine_dev_config *cfg;
struct acpi_gpio *gpio;
if (variant_uses_v3_schematics())
return;
machine_dev = find_dev_nested_path(
pci_root_bus(), acp_machine_path, ARRAY_SIZE(acp_machine_path));
if (!machine_dev) {
printk(BIOS_ERR, "%s: Failed to find ACP machine device\n", __func__);
return;
}
if (machine_dev->chip_ops != &drivers_amd_i2s_machine_dev_ops) {
printk(BIOS_ERR, "%s: Incorrect device found\n", __func__);
return;
}
cfg = config_of(machine_dev);
gpio = &cfg->dmic_select_gpio;
if (CONFIG(BOARD_GOOGLE_BASEBOARD_TREMBYLE))
gpio->pins[0] = GPIO_13;
else
gpio->pins[0] = GPIO_6;
}
void variant_audio_update(void)
{
update_dmic_gpio();
update_hp_int_odl();
}
static const struct device_path xhci0_bt_path[] = {
{
.type = DEVICE_PATH_PCI,
.pci.devfn = PCIE_GPP_A_DEVFN
},
{
.type = DEVICE_PATH_PCI,
.pci.devfn = XHCI0_DEVFN
},
{
.type = DEVICE_PATH_USB,
.usb.port_type = 0,
.usb.port_id = 0
},
{
.type = DEVICE_PATH_USB,
.usb.port_type = 2,
.usb.port_id = 5
}
};
static const struct device_path xhci1_bt_path[] = {
{
.type = DEVICE_PATH_PCI,
.pci.devfn = PCIE_GPP_A_DEVFN
},
{
.type = DEVICE_PATH_PCI,
.pci.devfn = XHCI1_DEVFN
},
{
.type = DEVICE_PATH_USB,
.usb.port_type = 0,
.usb.port_id = 0
},
{
.type = DEVICE_PATH_USB,
.usb.port_type = 2,
.usb.port_id = 1
}
};
/*
* Removes reset_gpio from bluetooth device in device tree.
*
* The bluetooth device may be on XHCI0 or XHCI1 depending on SOC.
* There's no harm in removing from both here.
*/
static void baseboard_remove_bluetooth_reset_gpio(void)
{
const struct device *xhci0_bt_dev, *xhci1_bt_dev;
struct drivers_usb_acpi_config *xhci0_bt_cfg, *xhci1_bt_cfg;
xhci0_bt_dev = find_dev_nested_path(
pci_root_bus(), xhci0_bt_path, ARRAY_SIZE(xhci0_bt_path));
if (!xhci0_bt_dev) {
printk(BIOS_ERR, "%s: Failed to find bluetooth device on XHCI0!", __func__);
return;
}
/* config_of dies on failure, so a NULL check is not required */
xhci0_bt_cfg = config_of(xhci0_bt_dev);
xhci0_bt_cfg->reset_gpio.pin_count = 0;
/* There's no bluetooth device on XHCI1 on Dalboz */
if (CONFIG(BOARD_GOOGLE_BASEBOARD_DALBOZ))
return;
xhci1_bt_dev = find_dev_nested_path(
pci_root_bus(), xhci1_bt_path, ARRAY_SIZE(xhci1_bt_path));
if (!xhci1_bt_dev) {
printk(BIOS_ERR, "%s: Failed to find bluetooth device on XHCI1!", __func__);
return;
}
xhci1_bt_cfg = config_of(xhci1_bt_dev);
xhci1_bt_cfg->reset_gpio.pin_count = 0;
}
void variant_bluetooth_update(void)
{
if (CONFIG(BOARD_GOOGLE_BASEBOARD_DALBOZ) || variant_uses_v3_schematics())
return;
baseboard_remove_bluetooth_reset_gpio();
}
void variant_touchscreen_update(void)
{
DEVTREE_CONST struct device *mmio_dev = NULL;
struct device *child = NULL;
/*
* By default, devicetree/overridetree entries for touchscreen device are configured to
* match v3.6 of reference schematics. So, if the board is using v3.6+ schematics, no
* additional work is required here. For maintaining support for pre-v3.6 boards, rest
* of the code in this function finds all entries that correspond to touchscreen
* devices (identified by reset_gpio being set to GPIO_140) and updates them as per
* pre-v3.6 version of schematics:
* 1. reset_gpio is marked as active high.
*/
if (variant_uses_v3_6_schematics())
return;
while (1) {
mmio_dev = dev_find_path(mmio_dev, DEVICE_PATH_MMIO);
if (mmio_dev == NULL)
break;
if (mmio_dev->path.mmio.addr == APU_I2C2_BASE)
break;
}
if (mmio_dev == NULL)
return;
while ((child = dev_bus_each_child(mmio_dev->link_list, child)) != NULL) {
struct drivers_i2c_generic_config *cfg;
if (child->chip_ops == &drivers_i2c_generic_ops) {
cfg = config_of(child);
} else if (child->chip_ops == &drivers_i2c_hid_ops) {
struct drivers_i2c_hid_config *hid_cfg;
hid_cfg = config_of(child);
cfg = &hid_cfg->generic;
} else {
continue;
}
/* If reset_gpio is set to GPIO_140, assume that this is touchscreen device. */
if (cfg->reset_gpio.pins[0] != GPIO_140)
continue;
cfg->reset_gpio.active_low = 0;
cfg->enable_gpio.pin_count = 0;
cfg->enable_gpio.pins[0] = 0;
}
}
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