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This driver is used to control the PCIe M.2 connectors of different Mechanical Keys attached to the host machines and supporting different interfaces like PCIe/SATA, USB/UART etc... Currently, this driver supports only the Mechanical Key M connectors with PCIe interface. The driver also only supports driving the mandatory 3.3v and optional 1.8v power supplies. The optional signals of the Key M connectors are not currently supported. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Link: https://lore.kernel.org/r/20260122-pci-m2-v6-4-575da9f97239@oss.qualcomm.com [Bartosz: rename pwrseq_pcie_m2_free_resources() to pwrseq_pcie_m2_free_regulators()] Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
46 lines
1.6 KiB
Text
46 lines
1.6 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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menuconfig POWER_SEQUENCING
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tristate "Power Sequencing support"
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help
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Say Y here to enable the Power Sequencing subsystem.
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This subsystem is designed to control power to devices that share
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complex resources and/or require specific power sequences to be run
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during power-up.
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If unsure, say no.
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if POWER_SEQUENCING
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config POWER_SEQUENCING_QCOM_WCN
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tristate "Qualcomm WCN family PMU driver"
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default m if ARCH_QCOM
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depends on OF || COMPILE_TEST
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help
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Say Y here to enable the power sequencing driver for Qualcomm
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WCN Bluetooth/WLAN chipsets.
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Typically, a package from the Qualcomm WCN family contains the BT
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and WLAN modules whose power is controlled by the PMU module. As the
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former two share the power-up sequence which is executed by the PMU,
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this driver is needed for correct power control or else we'd risk not
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respecting the required delays between enabling Bluetooth and WLAN.
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config POWER_SEQUENCING_TH1520_GPU
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tristate "T-HEAD TH1520 GPU power sequencing driver"
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depends on (ARCH_THEAD && AUXILIARY_BUS) || COMPILE_TEST
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help
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Say Y here to enable the power sequencing driver for the TH1520 SoC
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GPU. This driver handles the complex clock and reset sequence
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required to power on the Imagination BXM GPU on this platform.
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config POWER_SEQUENCING_PCIE_M2
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tristate "PCIe M.2 connector power sequencing driver"
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depends on OF || COMPILE_TEST
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help
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Say Y here to enable the power sequencing driver for PCIe M.2
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connectors. This driver handles the power sequencing for the M.2
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connectors exposing multiple interfaces like PCIe, SATA, UART, etc...
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endif
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