variant.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <baseboard/variants.h>
#include <soc/pci_devs.h>
#include <ec/google/chromeec/ec.h>
 
#define SKU_UNKNOWN     0xFFFFFFFF
 
void variant_update_devtree(struct device *dev)
{
        uint32_t sku_id = SKU_UNKNOWN;
        struct device *touchscreen_i2c_host;
 
        touchscreen_i2c_host = pcidev_path_on_root(PCH_DEVFN_I2C7);
 
        if (touchscreen_i2c_host == NULL)
                return;
 
        /* SKU ID 1, 6 does not have a touchscreen device, hence disable it. */
        google_chromeec_cbi_get_sku_id(&sku_id);
        if (no_touchscreen_sku(sku_id))
                touchscreen_i2c_host->enabled = 0;
}