diff options
Diffstat (limited to 'drivers/acpi/pmic')
-rw-r--r-- | drivers/acpi/pmic/intel_pmic.c | 20 | ||||
-rw-r--r-- | drivers/acpi/pmic/intel_pmic_bytcrc.c (renamed from drivers/acpi/pmic/intel_pmic_crc.c) | 4 | ||||
-rw-r--r-- | drivers/acpi/pmic/intel_pmic_chtcrc.c | 44 |
3 files changed, 59 insertions, 9 deletions
diff --git a/drivers/acpi/pmic/intel_pmic.c b/drivers/acpi/pmic/intel_pmic.c index 452041398b34..a371f273f99d 100644 --- a/drivers/acpi/pmic/intel_pmic.c +++ b/drivers/acpi/pmic/intel_pmic.c @@ -252,7 +252,7 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, struct regmap *regmap, struct intel_pmic_opregion_data *d) { - acpi_status status; + acpi_status status = AE_OK; struct intel_pmic_opregion *opregion; int ret; @@ -270,7 +270,8 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, opregion->regmap = regmap; opregion->lpat_table = acpi_lpat_get_conversion_table(handle); - status = acpi_install_address_space_handler(handle, + if (d->power_table_count) + status = acpi_install_address_space_handler(handle, PMIC_POWER_OPREGION_ID, intel_pmic_power_handler, NULL, opregion); @@ -279,7 +280,8 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, goto out_error; } - status = acpi_install_address_space_handler(handle, + if (d->thermal_table_count) + status = acpi_install_address_space_handler(handle, PMIC_THERMAL_OPREGION_ID, intel_pmic_thermal_handler, NULL, opregion); @@ -301,12 +303,16 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, return 0; out_remove_thermal_handler: - acpi_remove_address_space_handler(handle, PMIC_THERMAL_OPREGION_ID, - intel_pmic_thermal_handler); + if (d->thermal_table_count) + acpi_remove_address_space_handler(handle, + PMIC_THERMAL_OPREGION_ID, + intel_pmic_thermal_handler); out_remove_power_handler: - acpi_remove_address_space_handler(handle, PMIC_POWER_OPREGION_ID, - intel_pmic_power_handler); + if (d->power_table_count) + acpi_remove_address_space_handler(handle, + PMIC_POWER_OPREGION_ID, + intel_pmic_power_handler); out_error: acpi_lpat_free_conversion_table(opregion->lpat_table); diff --git a/drivers/acpi/pmic/intel_pmic_crc.c b/drivers/acpi/pmic/intel_pmic_bytcrc.c index a0f411a6e5ac..2a692cc4b7ae 100644 --- a/drivers/acpi/pmic/intel_pmic_crc.c +++ b/drivers/acpi/pmic/intel_pmic_bytcrc.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 /* - * Intel CrystalCove PMIC operation region driver + * Intel Bay Trail Crystal Cove PMIC operation region driver * * Copyright (C) 2014 Intel Corporation. All rights reserved. */ @@ -295,7 +295,7 @@ static int intel_crc_pmic_opregion_probe(struct platform_device *pdev) static struct platform_driver intel_crc_pmic_opregion_driver = { .probe = intel_crc_pmic_opregion_probe, .driver = { - .name = "crystal_cove_pmic", + .name = "byt_crystal_cove_pmic", }, }; builtin_platform_driver(intel_crc_pmic_opregion_driver); diff --git a/drivers/acpi/pmic/intel_pmic_chtcrc.c b/drivers/acpi/pmic/intel_pmic_chtcrc.c new file mode 100644 index 000000000000..ebf8d3187df1 --- /dev/null +++ b/drivers/acpi/pmic/intel_pmic_chtcrc.c @@ -0,0 +1,44 @@ +// 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 presuambly 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); |