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// SPDX-License-Identifier: GPL-2.0
/*
* Intel Cherry Trail Crystal Cove PMIC operation region driver
*
* Copyright (C) 2019 Hans de Goede <hdegoede@redhat.com>
*/
#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/mfd/intel_soc_pmic.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include "intel_pmic.h"
/*
* We have no docs for the CHT Crystal Cove PMIC. The Asus Zenfone-2 kernel
* code has 2 Crystal Cove regulator drivers, one calls the PMIC a "Crystal
* Cove Plus" PMIC and talks about Cherry Trail, so presumably that one
* could be used to get register info for the regulators if we need to
* implement regulator support in the future.
*
* For now the sole purpose of this driver is to make
* intel_soc_pmic_exec_mipi_pmic_seq_element work on devices with a
* CHT Crystal Cove PMIC.
*/
static struct intel_pmic_opregion_data intel_chtcrc_pmic_opregion_data = {
.pmic_i2c_address = 0x6e,
};
static int intel_chtcrc_pmic_opregion_probe(struct platform_device *pdev)
{
struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);
return intel_pmic_install_opregion_handler(&pdev->dev,
ACPI_HANDLE(pdev->dev.parent), pmic->regmap,
&intel_chtcrc_pmic_opregion_data);
}
static struct platform_driver intel_chtcrc_pmic_opregion_driver = {
.probe = intel_chtcrc_pmic_opregion_probe,
.driver = {
.name = "cht_crystal_cove_pmic",
},
};
builtin_platform_driver(intel_chtcrc_pmic_opregion_driver);
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