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regulator: Add snapshot of MSM GFX LDO driver

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This is a snapshot of MSM GFX LDO regulator driver for SDM660 as
of msm-4.14 'commit <90153c60c7b956e9fa> ("Merge "pinctrl-msm: Add
irq_set_wake support to msmgpio-dc irqchip")'.

Change-Id: Id13b6b601c91aa6c2c2f0e6d820a244144b60437
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Signed-off-by: Asha Magadi Venkateshamurthy <amagad@codeaurora.org>
This commit is contained in:
Asha Magadi Venkateshamurthy 2020-06-25 14:39:56 +05:30
parent c4266166e7
commit 902d61b3d8
4 changed files with 1671 additions and 0 deletions
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10
drivers/regulator/Kconfig
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@ -1074,6 +1074,16 @@ config REGULATOR_REFGEN
it used by various PHY blocks found inside of the SoC. It supports
enable/disable control.
config REGULATOR_MSM_GFX_LDO
tristate "MSM GFX LDO Regulator"
depends on OF
help
This driver supports the MSM GFX (Graphics) LDO regulator. The
GFU core is either powered by an internal MSM LDO or by BHS.
Typically the lower voltage corners are powered by LDO and
the higher ones by BHS. This driver allows for configuration of
the rail between the LDO/BHS as well as the LDO voltage.
config REGULATOR_RPMH
tristate "Qualcomm Technologies, Inc. Legacy RPMh regulator driver"
depends on QCOM_RPMH

1
drivers/regulator/Makefile
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@ -136,6 +136,7 @@ obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
obj-$(CONFIG_REGULATOR_MEM_ACC) += mem-acc-regulator.o
obj-$(CONFIG_REGULATOR_MSM_GFX_LDO) += msm_gfx_ldo.o
obj-$(CONFIG_REGULATOR_REFGEN) += refgen.o
obj-$(CONFIG_REGULATOR_SPM) += spm-regulator.o
obj-$(CONFIG_REGULATOR_RPMH) += rpmh-regulator.o

1636
drivers/regulator/msm_gfx_ldo.c Normal file
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24
include/linux/regulator/msm-ldo-regulator.h Normal file
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@ -0,0 +1,24 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
*/
#ifndef __MSM_LDO_REGULATOR_H__
#define __MSM_LDO_REGULATOR_H__
/**
* enum msm_ldo_supply_mode - supported operating modes by this regulator type.
* Use negative logic to ensure BHS mode is treated as the safe default by the
* the regulator framework. This is necessary since LDO mode can only be enabled
* when several constraints are satisfied. Consumers of this regulator are
* expected to request changes in operating modes through the use of
* regulator_allow_bypass() passing in the desired LDO supply mode.
* %BHS_MODE: to select BHS as operating mode
* %LDO_MODE: to select LDO as operating mode
*/
enum msm_ldo_supply_mode {
BHS_MODE = false,
LDO_MODE = true,
};
#endif /* __MSM_LDO_REGULATOR_H__ */