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/* SPDX-License-Identifier: GPL-2.0-only */
#include <baseboard/variants.h>
#include <soc/pci_devs.h>
#include <acpi/acpi_device.h>
extern struct chip_operations drivers_i2c_tpm_ops;
static bool match_i2c_tpm(DEVTREE_CONST struct device *dev)
{
return dev->chip_ops == &drivers_i2c_tpm_ops;
}
/*
* This function runs only on the volteer_ti50 variant, which has the GSC on a
* reworked I2C bus.
*/
static void devtree_enable_i2c_tpm(void)
{
struct device *spi_tpm = pcidev_path_on_root(PCH_DEVFN_GSPI0)->link_list->children;
struct device *i2c_tpm = dev_find_matching_device_on_bus(
pcidev_path_on_root(PCH_DEVFN_I2C1)->link_list, match_i2c_tpm);
if (!i2c_tpm || !spi_tpm)
return;
spi_tpm->enabled = 0;
i2c_tpm->enabled = 1;
}
void variant_devtree_update(void)
{
if (CONFIG(MAINBOARD_HAS_I2C_TPM_CR50))
devtree_enable_i2c_tpm();
}
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