blob: 724dd132514c3c75adc9d08a79514b2112189b73 [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright 2018 Google LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <baseboard/variants.h>
#include <soc/pci_devs.h>
#include <string.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 = dev_find_slot(0, PCH_DEVFN_I2C7);
if (touchscreen_i2c_host == NULL)
return;
/* SKU ID 1 does not have a touchscreen device, hence disable it. */
google_chromeec_cbi_get_sku_id(&sku_id);
if (sku_id == 1)
touchscreen_i2c_host->enabled = 0;
}