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588 lines
16 KiB
588 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. */ |
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#include <linux/err.h> |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/mutex.h> |
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#include <linux/pm_domain.h> |
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#include <linux/of.h> |
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#include <linux/of_device.h> |
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#include <linux/platform_device.h> |
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#include <linux/pm_opp.h> |
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#include <linux/soc/qcom/smd-rpm.h> |
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#include <dt-bindings/power/qcom-rpmpd.h> |
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#define domain_to_rpmpd(domain) container_of(domain, struct rpmpd, pd) |
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/* Resource types: |
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* RPMPD_X is X encoded as a little-endian, lower-case, ASCII string */ |
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#define RPMPD_SMPA 0x61706d73 |
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#define RPMPD_LDOA 0x616f646c |
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#define RPMPD_SMPB 0x62706d73 |
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#define RPMPD_LDOB 0x626f646c |
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#define RPMPD_RWCX 0x78637772 |
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#define RPMPD_RWMX 0x786d7772 |
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#define RPMPD_RWLC 0x636c7772 |
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#define RPMPD_RWLM 0x6d6c7772 |
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#define RPMPD_RWSC 0x63737772 |
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#define RPMPD_RWSM 0x6d737772 |
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/* Operation Keys */ |
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#define KEY_CORNER 0x6e726f63 /* corn */ |
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#define KEY_ENABLE 0x6e657773 /* swen */ |
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#define KEY_FLOOR_CORNER 0x636676 /* vfc */ |
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#define KEY_FLOOR_LEVEL 0x6c6676 /* vfl */ |
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#define KEY_LEVEL 0x6c766c76 /* vlvl */ |
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#define MAX_CORNER_RPMPD_STATE 6 |
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#define DEFINE_RPMPD_PAIR(_platform, _name, _active, r_type, r_key, \ |
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r_id) \ |
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static struct rpmpd _platform##_##_active; \ |
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static struct rpmpd _platform##_##_name = { \ |
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.pd = { .name = #_name, }, \ |
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.peer = &_platform##_##_active, \ |
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.res_type = RPMPD_##r_type, \ |
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.res_id = r_id, \ |
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.key = KEY_##r_key, \ |
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}; \ |
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static struct rpmpd _platform##_##_active = { \ |
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.pd = { .name = #_active, }, \ |
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.peer = &_platform##_##_name, \ |
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.active_only = true, \ |
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.res_type = RPMPD_##r_type, \ |
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.res_id = r_id, \ |
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.key = KEY_##r_key, \ |
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} |
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#define DEFINE_RPMPD_CORNER(_platform, _name, r_type, r_id) \ |
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static struct rpmpd _platform##_##_name = { \ |
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.pd = { .name = #_name, }, \ |
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.res_type = RPMPD_##r_type, \ |
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.res_id = r_id, \ |
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.key = KEY_CORNER, \ |
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} |
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#define DEFINE_RPMPD_LEVEL(_platform, _name, r_type, r_id) \ |
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static struct rpmpd _platform##_##_name = { \ |
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.pd = { .name = #_name, }, \ |
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.res_type = RPMPD_##r_type, \ |
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.res_id = r_id, \ |
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.key = KEY_LEVEL, \ |
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} |
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#define DEFINE_RPMPD_VFC(_platform, _name, r_type, r_id) \ |
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static struct rpmpd _platform##_##_name = { \ |
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.pd = { .name = #_name, }, \ |
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.res_type = RPMPD_##r_type, \ |
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.res_id = r_id, \ |
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.key = KEY_FLOOR_CORNER, \ |
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} |
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#define DEFINE_RPMPD_VFL(_platform, _name, r_type, r_id) \ |
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static struct rpmpd _platform##_##_name = { \ |
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.pd = { .name = #_name, }, \ |
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.res_type = RPMPD_##r_type, \ |
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.res_id = r_id, \ |
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.key = KEY_FLOOR_LEVEL, \ |
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} |
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struct rpmpd_req { |
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__le32 key; |
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__le32 nbytes; |
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__le32 value; |
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}; |
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struct rpmpd { |
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struct generic_pm_domain pd; |
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struct rpmpd *peer; |
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const bool active_only; |
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unsigned int corner; |
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bool enabled; |
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const char *res_name; |
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const int res_type; |
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const int res_id; |
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struct qcom_smd_rpm *rpm; |
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unsigned int max_state; |
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__le32 key; |
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}; |
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struct rpmpd_desc { |
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struct rpmpd **rpmpds; |
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size_t num_pds; |
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unsigned int max_state; |
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}; |
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static DEFINE_MUTEX(rpmpd_lock); |
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/* mdm9607 RPM Power Domains */ |
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DEFINE_RPMPD_PAIR(mdm9607, vddcx, vddcx_ao, SMPA, LEVEL, 3); |
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DEFINE_RPMPD_VFL(mdm9607, vddcx_vfl, SMPA, 3); |
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DEFINE_RPMPD_PAIR(mdm9607, vddmx, vddmx_ao, LDOA, LEVEL, 12); |
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DEFINE_RPMPD_VFL(mdm9607, vddmx_vfl, LDOA, 12); |
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static struct rpmpd *mdm9607_rpmpds[] = { |
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[MDM9607_VDDCX] = &mdm9607_vddcx, |
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[MDM9607_VDDCX_AO] = &mdm9607_vddcx_ao, |
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[MDM9607_VDDCX_VFL] = &mdm9607_vddcx_vfl, |
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[MDM9607_VDDMX] = &mdm9607_vddmx, |
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[MDM9607_VDDMX_AO] = &mdm9607_vddmx_ao, |
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[MDM9607_VDDMX_VFL] = &mdm9607_vddmx_vfl, |
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}; |
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static const struct rpmpd_desc mdm9607_desc = { |
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.rpmpds = mdm9607_rpmpds, |
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.num_pds = ARRAY_SIZE(mdm9607_rpmpds), |
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.max_state = RPM_SMD_LEVEL_TURBO, |
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}; |
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/* msm8939 RPM Power Domains */ |
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DEFINE_RPMPD_PAIR(msm8939, vddmd, vddmd_ao, SMPA, CORNER, 1); |
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DEFINE_RPMPD_VFC(msm8939, vddmd_vfc, SMPA, 1); |
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DEFINE_RPMPD_PAIR(msm8939, vddcx, vddcx_ao, SMPA, CORNER, 2); |
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DEFINE_RPMPD_VFC(msm8939, vddcx_vfc, SMPA, 2); |
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DEFINE_RPMPD_PAIR(msm8939, vddmx, vddmx_ao, LDOA, CORNER, 3); |
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static struct rpmpd *msm8939_rpmpds[] = { |
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[MSM8939_VDDMDCX] = &msm8939_vddmd, |
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[MSM8939_VDDMDCX_AO] = &msm8939_vddmd_ao, |
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[MSM8939_VDDMDCX_VFC] = &msm8939_vddmd_vfc, |
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[MSM8939_VDDCX] = &msm8939_vddcx, |
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[MSM8939_VDDCX_AO] = &msm8939_vddcx_ao, |
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[MSM8939_VDDCX_VFC] = &msm8939_vddcx_vfc, |
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[MSM8939_VDDMX] = &msm8939_vddmx, |
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[MSM8939_VDDMX_AO] = &msm8939_vddmx_ao, |
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}; |
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static const struct rpmpd_desc msm8939_desc = { |
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.rpmpds = msm8939_rpmpds, |
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.num_pds = ARRAY_SIZE(msm8939_rpmpds), |
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.max_state = MAX_CORNER_RPMPD_STATE, |
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}; |
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/* msm8916 RPM Power Domains */ |
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DEFINE_RPMPD_PAIR(msm8916, vddcx, vddcx_ao, SMPA, CORNER, 1); |
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DEFINE_RPMPD_PAIR(msm8916, vddmx, vddmx_ao, LDOA, CORNER, 3); |
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DEFINE_RPMPD_VFC(msm8916, vddcx_vfc, SMPA, 1); |
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static struct rpmpd *msm8916_rpmpds[] = { |
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[MSM8916_VDDCX] = &msm8916_vddcx, |
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[MSM8916_VDDCX_AO] = &msm8916_vddcx_ao, |
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[MSM8916_VDDCX_VFC] = &msm8916_vddcx_vfc, |
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[MSM8916_VDDMX] = &msm8916_vddmx, |
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[MSM8916_VDDMX_AO] = &msm8916_vddmx_ao, |
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}; |
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static const struct rpmpd_desc msm8916_desc = { |
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.rpmpds = msm8916_rpmpds, |
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.num_pds = ARRAY_SIZE(msm8916_rpmpds), |
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.max_state = MAX_CORNER_RPMPD_STATE, |
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}; |
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/* msm8976 RPM Power Domains */ |
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DEFINE_RPMPD_PAIR(msm8976, vddcx, vddcx_ao, SMPA, LEVEL, 2); |
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DEFINE_RPMPD_PAIR(msm8976, vddmx, vddmx_ao, SMPA, LEVEL, 6); |
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DEFINE_RPMPD_VFL(msm8976, vddcx_vfl, RWSC, 2); |
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DEFINE_RPMPD_VFL(msm8976, vddmx_vfl, RWSM, 6); |
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static struct rpmpd *msm8976_rpmpds[] = { |
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[MSM8976_VDDCX] = &msm8976_vddcx, |
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[MSM8976_VDDCX_AO] = &msm8976_vddcx_ao, |
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[MSM8976_VDDCX_VFL] = &msm8976_vddcx_vfl, |
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[MSM8976_VDDMX] = &msm8976_vddmx, |
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[MSM8976_VDDMX_AO] = &msm8976_vddmx_ao, |
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[MSM8976_VDDMX_VFL] = &msm8976_vddmx_vfl, |
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}; |
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static const struct rpmpd_desc msm8976_desc = { |
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.rpmpds = msm8976_rpmpds, |
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.num_pds = ARRAY_SIZE(msm8976_rpmpds), |
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.max_state = RPM_SMD_LEVEL_TURBO_HIGH, |
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}; |
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/* msm8994 RPM Power domains */ |
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DEFINE_RPMPD_PAIR(msm8994, vddcx, vddcx_ao, SMPA, CORNER, 1); |
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DEFINE_RPMPD_PAIR(msm8994, vddmx, vddmx_ao, SMPA, CORNER, 2); |
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/* Attention! *Some* 8994 boards with pm8004 may use SMPC here! */ |
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DEFINE_RPMPD_CORNER(msm8994, vddgfx, SMPB, 2); |
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DEFINE_RPMPD_VFC(msm8994, vddcx_vfc, SMPA, 1); |
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DEFINE_RPMPD_VFC(msm8994, vddgfx_vfc, SMPB, 2); |
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static struct rpmpd *msm8994_rpmpds[] = { |
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[MSM8994_VDDCX] = &msm8994_vddcx, |
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[MSM8994_VDDCX_AO] = &msm8994_vddcx_ao, |
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[MSM8994_VDDCX_VFC] = &msm8994_vddcx_vfc, |
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[MSM8994_VDDMX] = &msm8994_vddmx, |
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[MSM8994_VDDMX_AO] = &msm8994_vddmx_ao, |
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[MSM8994_VDDGFX] = &msm8994_vddgfx, |
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[MSM8994_VDDGFX_VFC] = &msm8994_vddgfx_vfc, |
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}; |
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static const struct rpmpd_desc msm8994_desc = { |
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.rpmpds = msm8994_rpmpds, |
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.num_pds = ARRAY_SIZE(msm8994_rpmpds), |
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.max_state = MAX_CORNER_RPMPD_STATE, |
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}; |
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/* msm8996 RPM Power domains */ |
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DEFINE_RPMPD_PAIR(msm8996, vddcx, vddcx_ao, SMPA, CORNER, 1); |
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DEFINE_RPMPD_PAIR(msm8996, vddmx, vddmx_ao, SMPA, CORNER, 2); |
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DEFINE_RPMPD_CORNER(msm8996, vddsscx, LDOA, 26); |
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DEFINE_RPMPD_VFC(msm8996, vddcx_vfc, SMPA, 1); |
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DEFINE_RPMPD_VFC(msm8996, vddsscx_vfc, LDOA, 26); |
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static struct rpmpd *msm8996_rpmpds[] = { |
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[MSM8996_VDDCX] = &msm8996_vddcx, |
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[MSM8996_VDDCX_AO] = &msm8996_vddcx_ao, |
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[MSM8996_VDDCX_VFC] = &msm8996_vddcx_vfc, |
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[MSM8996_VDDMX] = &msm8996_vddmx, |
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[MSM8996_VDDMX_AO] = &msm8996_vddmx_ao, |
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[MSM8996_VDDSSCX] = &msm8996_vddsscx, |
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[MSM8996_VDDSSCX_VFC] = &msm8996_vddsscx_vfc, |
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}; |
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static const struct rpmpd_desc msm8996_desc = { |
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.rpmpds = msm8996_rpmpds, |
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.num_pds = ARRAY_SIZE(msm8996_rpmpds), |
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.max_state = MAX_CORNER_RPMPD_STATE, |
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}; |
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/* msm8998 RPM Power domains */ |
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DEFINE_RPMPD_PAIR(msm8998, vddcx, vddcx_ao, RWCX, LEVEL, 0); |
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DEFINE_RPMPD_VFL(msm8998, vddcx_vfl, RWCX, 0); |
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DEFINE_RPMPD_PAIR(msm8998, vddmx, vddmx_ao, RWMX, LEVEL, 0); |
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DEFINE_RPMPD_VFL(msm8998, vddmx_vfl, RWMX, 0); |
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DEFINE_RPMPD_LEVEL(msm8998, vdd_ssccx, RWSC, 0); |
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DEFINE_RPMPD_VFL(msm8998, vdd_ssccx_vfl, RWSC, 0); |
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DEFINE_RPMPD_LEVEL(msm8998, vdd_sscmx, RWSM, 0); |
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DEFINE_RPMPD_VFL(msm8998, vdd_sscmx_vfl, RWSM, 0); |
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static struct rpmpd *msm8998_rpmpds[] = { |
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[MSM8998_VDDCX] = &msm8998_vddcx, |
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[MSM8998_VDDCX_AO] = &msm8998_vddcx_ao, |
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[MSM8998_VDDCX_VFL] = &msm8998_vddcx_vfl, |
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[MSM8998_VDDMX] = &msm8998_vddmx, |
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[MSM8998_VDDMX_AO] = &msm8998_vddmx_ao, |
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[MSM8998_VDDMX_VFL] = &msm8998_vddmx_vfl, |
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[MSM8998_SSCCX] = &msm8998_vdd_ssccx, |
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[MSM8998_SSCCX_VFL] = &msm8998_vdd_ssccx_vfl, |
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[MSM8998_SSCMX] = &msm8998_vdd_sscmx, |
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[MSM8998_SSCMX_VFL] = &msm8998_vdd_sscmx_vfl, |
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}; |
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static const struct rpmpd_desc msm8998_desc = { |
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.rpmpds = msm8998_rpmpds, |
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.num_pds = ARRAY_SIZE(msm8998_rpmpds), |
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.max_state = RPM_SMD_LEVEL_BINNING, |
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}; |
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/* qcs404 RPM Power domains */ |
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DEFINE_RPMPD_PAIR(qcs404, vddmx, vddmx_ao, RWMX, LEVEL, 0); |
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DEFINE_RPMPD_VFL(qcs404, vddmx_vfl, RWMX, 0); |
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DEFINE_RPMPD_LEVEL(qcs404, vdd_lpicx, RWLC, 0); |
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DEFINE_RPMPD_VFL(qcs404, vdd_lpicx_vfl, RWLC, 0); |
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DEFINE_RPMPD_LEVEL(qcs404, vdd_lpimx, RWLM, 0); |
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DEFINE_RPMPD_VFL(qcs404, vdd_lpimx_vfl, RWLM, 0); |
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static struct rpmpd *qcs404_rpmpds[] = { |
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[QCS404_VDDMX] = &qcs404_vddmx, |
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[QCS404_VDDMX_AO] = &qcs404_vddmx_ao, |
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[QCS404_VDDMX_VFL] = &qcs404_vddmx_vfl, |
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[QCS404_LPICX] = &qcs404_vdd_lpicx, |
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[QCS404_LPICX_VFL] = &qcs404_vdd_lpicx_vfl, |
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[QCS404_LPIMX] = &qcs404_vdd_lpimx, |
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[QCS404_LPIMX_VFL] = &qcs404_vdd_lpimx_vfl, |
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}; |
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static const struct rpmpd_desc qcs404_desc = { |
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.rpmpds = qcs404_rpmpds, |
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.num_pds = ARRAY_SIZE(qcs404_rpmpds), |
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.max_state = RPM_SMD_LEVEL_BINNING, |
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}; |
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/* sdm660 RPM Power domains */ |
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DEFINE_RPMPD_PAIR(sdm660, vddcx, vddcx_ao, RWCX, LEVEL, 0); |
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DEFINE_RPMPD_VFL(sdm660, vddcx_vfl, RWCX, 0); |
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DEFINE_RPMPD_PAIR(sdm660, vddmx, vddmx_ao, RWMX, LEVEL, 0); |
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DEFINE_RPMPD_VFL(sdm660, vddmx_vfl, RWMX, 0); |
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DEFINE_RPMPD_LEVEL(sdm660, vdd_ssccx, RWLC, 0); |
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DEFINE_RPMPD_VFL(sdm660, vdd_ssccx_vfl, RWLC, 0); |
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DEFINE_RPMPD_LEVEL(sdm660, vdd_sscmx, RWLM, 0); |
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DEFINE_RPMPD_VFL(sdm660, vdd_sscmx_vfl, RWLM, 0); |
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static struct rpmpd *sdm660_rpmpds[] = { |
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[SDM660_VDDCX] = &sdm660_vddcx, |
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[SDM660_VDDCX_AO] = &sdm660_vddcx_ao, |
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[SDM660_VDDCX_VFL] = &sdm660_vddcx_vfl, |
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[SDM660_VDDMX] = &sdm660_vddmx, |
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[SDM660_VDDMX_AO] = &sdm660_vddmx_ao, |
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[SDM660_VDDMX_VFL] = &sdm660_vddmx_vfl, |
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[SDM660_SSCCX] = &sdm660_vdd_ssccx, |
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[SDM660_SSCCX_VFL] = &sdm660_vdd_ssccx_vfl, |
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[SDM660_SSCMX] = &sdm660_vdd_sscmx, |
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[SDM660_SSCMX_VFL] = &sdm660_vdd_sscmx_vfl, |
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}; |
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static const struct rpmpd_desc sdm660_desc = { |
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.rpmpds = sdm660_rpmpds, |
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.num_pds = ARRAY_SIZE(sdm660_rpmpds), |
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.max_state = RPM_SMD_LEVEL_TURBO, |
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}; |
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/* sm4250/6115 RPM Power domains */ |
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DEFINE_RPMPD_PAIR(sm6115, vddcx, vddcx_ao, RWCX, LEVEL, 0); |
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DEFINE_RPMPD_VFL(sm6115, vddcx_vfl, RWCX, 0); |
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DEFINE_RPMPD_PAIR(sm6115, vddmx, vddmx_ao, RWMX, LEVEL, 0); |
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DEFINE_RPMPD_VFL(sm6115, vddmx_vfl, RWMX, 0); |
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DEFINE_RPMPD_LEVEL(sm6115, vdd_lpi_cx, RWLC, 0); |
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DEFINE_RPMPD_LEVEL(sm6115, vdd_lpi_mx, RWLM, 0); |
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static struct rpmpd *sm6115_rpmpds[] = { |
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[SM6115_VDDCX] = &sm6115_vddcx, |
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[SM6115_VDDCX_AO] = &sm6115_vddcx_ao, |
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[SM6115_VDDCX_VFL] = &sm6115_vddcx_vfl, |
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[SM6115_VDDMX] = &sm6115_vddmx, |
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[SM6115_VDDMX_AO] = &sm6115_vddmx_ao, |
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[SM6115_VDDMX_VFL] = &sm6115_vddmx_vfl, |
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[SM6115_VDD_LPI_CX] = &sm6115_vdd_lpi_cx, |
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[SM6115_VDD_LPI_MX] = &sm6115_vdd_lpi_mx, |
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}; |
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static const struct rpmpd_desc sm6115_desc = { |
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.rpmpds = sm6115_rpmpds, |
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.num_pds = ARRAY_SIZE(sm6115_rpmpds), |
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.max_state = RPM_SMD_LEVEL_TURBO_NO_CPR, |
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}; |
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static const struct of_device_id rpmpd_match_table[] = { |
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{ .compatible = "qcom,mdm9607-rpmpd", .data = &mdm9607_desc }, |
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{ .compatible = "qcom,msm8916-rpmpd", .data = &msm8916_desc }, |
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{ .compatible = "qcom,msm8939-rpmpd", .data = &msm8939_desc }, |
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{ .compatible = "qcom,msm8976-rpmpd", .data = &msm8976_desc }, |
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{ .compatible = "qcom,msm8994-rpmpd", .data = &msm8994_desc }, |
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{ .compatible = "qcom,msm8996-rpmpd", .data = &msm8996_desc }, |
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{ .compatible = "qcom,msm8998-rpmpd", .data = &msm8998_desc }, |
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{ .compatible = "qcom,qcs404-rpmpd", .data = &qcs404_desc }, |
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{ .compatible = "qcom,sdm660-rpmpd", .data = &sdm660_desc }, |
|
{ .compatible = "qcom,sm6115-rpmpd", .data = &sm6115_desc }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(of, rpmpd_match_table); |
|
|
|
static int rpmpd_send_enable(struct rpmpd *pd, bool enable) |
|
{ |
|
struct rpmpd_req req = { |
|
.key = KEY_ENABLE, |
|
.nbytes = cpu_to_le32(sizeof(u32)), |
|
.value = cpu_to_le32(enable), |
|
}; |
|
|
|
return qcom_rpm_smd_write(pd->rpm, QCOM_SMD_RPM_ACTIVE_STATE, |
|
pd->res_type, pd->res_id, &req, sizeof(req)); |
|
} |
|
|
|
static int rpmpd_send_corner(struct rpmpd *pd, int state, unsigned int corner) |
|
{ |
|
struct rpmpd_req req = { |
|
.key = pd->key, |
|
.nbytes = cpu_to_le32(sizeof(u32)), |
|
.value = cpu_to_le32(corner), |
|
}; |
|
|
|
return qcom_rpm_smd_write(pd->rpm, state, pd->res_type, pd->res_id, |
|
&req, sizeof(req)); |
|
}; |
|
|
|
static void to_active_sleep(struct rpmpd *pd, unsigned int corner, |
|
unsigned int *active, unsigned int *sleep) |
|
{ |
|
*active = corner; |
|
|
|
if (pd->active_only) |
|
*sleep = 0; |
|
else |
|
*sleep = *active; |
|
} |
|
|
|
static int rpmpd_aggregate_corner(struct rpmpd *pd) |
|
{ |
|
int ret; |
|
struct rpmpd *peer = pd->peer; |
|
unsigned int active_corner, sleep_corner; |
|
unsigned int this_active_corner = 0, this_sleep_corner = 0; |
|
unsigned int peer_active_corner = 0, peer_sleep_corner = 0; |
|
|
|
to_active_sleep(pd, pd->corner, &this_active_corner, &this_sleep_corner); |
|
|
|
if (peer && peer->enabled) |
|
to_active_sleep(peer, peer->corner, &peer_active_corner, |
|
&peer_sleep_corner); |
|
|
|
active_corner = max(this_active_corner, peer_active_corner); |
|
|
|
ret = rpmpd_send_corner(pd, QCOM_SMD_RPM_ACTIVE_STATE, active_corner); |
|
if (ret) |
|
return ret; |
|
|
|
sleep_corner = max(this_sleep_corner, peer_sleep_corner); |
|
|
|
return rpmpd_send_corner(pd, QCOM_SMD_RPM_SLEEP_STATE, sleep_corner); |
|
} |
|
|
|
static int rpmpd_power_on(struct generic_pm_domain *domain) |
|
{ |
|
int ret; |
|
struct rpmpd *pd = domain_to_rpmpd(domain); |
|
|
|
mutex_lock(&rpmpd_lock); |
|
|
|
ret = rpmpd_send_enable(pd, true); |
|
if (ret) |
|
goto out; |
|
|
|
pd->enabled = true; |
|
|
|
if (pd->corner) |
|
ret = rpmpd_aggregate_corner(pd); |
|
|
|
out: |
|
mutex_unlock(&rpmpd_lock); |
|
|
|
return ret; |
|
} |
|
|
|
static int rpmpd_power_off(struct generic_pm_domain *domain) |
|
{ |
|
int ret; |
|
struct rpmpd *pd = domain_to_rpmpd(domain); |
|
|
|
mutex_lock(&rpmpd_lock); |
|
|
|
ret = rpmpd_send_enable(pd, false); |
|
if (!ret) |
|
pd->enabled = false; |
|
|
|
mutex_unlock(&rpmpd_lock); |
|
|
|
return ret; |
|
} |
|
|
|
static int rpmpd_set_performance(struct generic_pm_domain *domain, |
|
unsigned int state) |
|
{ |
|
int ret = 0; |
|
struct rpmpd *pd = domain_to_rpmpd(domain); |
|
|
|
if (state > pd->max_state) |
|
state = pd->max_state; |
|
|
|
mutex_lock(&rpmpd_lock); |
|
|
|
pd->corner = state; |
|
|
|
/* Always send updates for vfc and vfl */ |
|
if (!pd->enabled && pd->key != KEY_FLOOR_CORNER && |
|
pd->key != KEY_FLOOR_LEVEL) |
|
goto out; |
|
|
|
ret = rpmpd_aggregate_corner(pd); |
|
|
|
out: |
|
mutex_unlock(&rpmpd_lock); |
|
|
|
return ret; |
|
} |
|
|
|
static unsigned int rpmpd_get_performance(struct generic_pm_domain *genpd, |
|
struct dev_pm_opp *opp) |
|
{ |
|
return dev_pm_opp_get_level(opp); |
|
} |
|
|
|
static int rpmpd_probe(struct platform_device *pdev) |
|
{ |
|
int i; |
|
size_t num; |
|
struct genpd_onecell_data *data; |
|
struct qcom_smd_rpm *rpm; |
|
struct rpmpd **rpmpds; |
|
const struct rpmpd_desc *desc; |
|
|
|
rpm = dev_get_drvdata(pdev->dev.parent); |
|
if (!rpm) { |
|
dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n"); |
|
return -ENODEV; |
|
} |
|
|
|
desc = of_device_get_match_data(&pdev->dev); |
|
if (!desc) |
|
return -EINVAL; |
|
|
|
rpmpds = desc->rpmpds; |
|
num = desc->num_pds; |
|
|
|
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
data->domains = devm_kcalloc(&pdev->dev, num, sizeof(*data->domains), |
|
GFP_KERNEL); |
|
data->num_domains = num; |
|
|
|
for (i = 0; i < num; i++) { |
|
if (!rpmpds[i]) { |
|
dev_warn(&pdev->dev, "rpmpds[] with empty entry at index=%d\n", |
|
i); |
|
continue; |
|
} |
|
|
|
rpmpds[i]->rpm = rpm; |
|
rpmpds[i]->max_state = desc->max_state; |
|
rpmpds[i]->pd.power_off = rpmpd_power_off; |
|
rpmpds[i]->pd.power_on = rpmpd_power_on; |
|
rpmpds[i]->pd.set_performance_state = rpmpd_set_performance; |
|
rpmpds[i]->pd.opp_to_performance_state = rpmpd_get_performance; |
|
pm_genpd_init(&rpmpds[i]->pd, NULL, true); |
|
|
|
data->domains[i] = &rpmpds[i]->pd; |
|
} |
|
|
|
return of_genpd_add_provider_onecell(pdev->dev.of_node, data); |
|
} |
|
|
|
static struct platform_driver rpmpd_driver = { |
|
.driver = { |
|
.name = "qcom-rpmpd", |
|
.of_match_table = rpmpd_match_table, |
|
.suppress_bind_attrs = true, |
|
}, |
|
.probe = rpmpd_probe, |
|
}; |
|
|
|
static int __init rpmpd_init(void) |
|
{ |
|
return platform_driver_register(&rpmpd_driver); |
|
} |
|
core_initcall(rpmpd_init); |
|
|
|
MODULE_DESCRIPTION("Qualcomm Technologies, Inc. RPM Power Domain Driver"); |
|
MODULE_LICENSE("GPL v2");
|
|
|