| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Rajendra Nayak | 1241 | 64.50% | 2 | 20.00% |
| Sibi Sankar | 261 | 13.57% | 3 | 30.00% |
| Björn Andersson | 259 | 13.46% | 3 | 30.00% |
| Angelo G. Del Regno | 143 | 7.43% | 1 | 10.00% |
| John Stultz | 20 | 1.04% | 1 | 10.00% |
| Total | 1924 | 10 |
// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. */ #include <linux/err.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/pm_domain.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pm_opp.h> #include <linux/soc/qcom/smd-rpm.h> #include <dt-bindings/power/qcom-rpmpd.h> #define domain_to_rpmpd(domain) container_of(domain, struct rpmpd, pd) /* Resource types: * RPMPD_X is X encoded as a little-endian, lower-case, ASCII string */ #define RPMPD_SMPA 0x61706d73 #define RPMPD_LDOA 0x616f646c #define RPMPD_RWCX 0x78637772 #define RPMPD_RWMX 0x786d7772 #define RPMPD_RWLC 0x636c7772 #define RPMPD_RWLM 0x6d6c7772 #define RPMPD_RWSC 0x63737772 #define RPMPD_RWSM 0x6d737772 /* Operation Keys */ #define KEY_CORNER 0x6e726f63 /* corn */ #define KEY_ENABLE 0x6e657773 /* swen */ #define KEY_FLOOR_CORNER 0x636676 /* vfc */ #define KEY_FLOOR_LEVEL 0x6c6676 /* vfl */ #define KEY_LEVEL 0x6c766c76 /* vlvl */ #define MAX_8996_RPMPD_STATE 6 #define DEFINE_RPMPD_PAIR(_platform, _name, _active, r_type, r_key, \ r_id) \ static struct rpmpd _platform##_##_active; \ static struct rpmpd _platform##_##_name = { \ .pd = { .name = #_name, }, \ .peer = &_platform##_##_active, \ .res_type = RPMPD_##r_type, \ .res_id = r_id, \ .key = KEY_##r_key, \ }; \ static struct rpmpd _platform##_##_active = { \ .pd = { .name = #_active, }, \ .peer = &_platform##_##_name, \ .active_only = true, \ .res_type = RPMPD_##r_type, \ .res_id = r_id, \ .key = KEY_##r_key, \ } #define DEFINE_RPMPD_CORNER(_platform, _name, r_type, r_id) \ static struct rpmpd _platform##_##_name = { \ .pd = { .name = #_name, }, \ .res_type = RPMPD_##r_type, \ .res_id = r_id, \ .key = KEY_CORNER, \ } #define DEFINE_RPMPD_LEVEL(_platform, _name, r_type, r_id) \ static struct rpmpd _platform##_##_name = { \ .pd = { .name = #_name, }, \ .res_type = RPMPD_##r_type, \ .res_id = r_id, \ .key = KEY_LEVEL, \ } #define DEFINE_RPMPD_VFC(_platform, _name, r_type, r_id) \ static struct rpmpd _platform##_##_name = { \ .pd = { .name = #_name, }, \ .res_type = RPMPD_##r_type, \ .res_id = r_id, \ .key = KEY_FLOOR_CORNER, \ } #define DEFINE_RPMPD_VFL(_platform, _name, r_type, r_id) \ static struct rpmpd _platform##_##_name = { \ .pd = { .name = #_name, }, \ .res_type = RPMPD_##r_type, \ .res_id = r_id, \ .key = KEY_FLOOR_LEVEL, \ } struct rpmpd_req { __le32 key; __le32 nbytes; __le32 value; }; struct rpmpd { struct generic_pm_domain pd; struct rpmpd *peer; const bool active_only; unsigned int corner; bool enabled; const char *res_name; const int res_type; const int res_id; struct qcom_smd_rpm *rpm; unsigned int max_state; __le32 key; }; struct rpmpd_desc { struct rpmpd **rpmpds; size_t num_pds; unsigned int max_state; }; static DEFINE_MUTEX(rpmpd_lock); /* msm8976 RPM Power Domains */ DEFINE_RPMPD_PAIR(msm8976, vddcx, vddcx_ao, SMPA, LEVEL, 2); DEFINE_RPMPD_PAIR(msm8976, vddmx, vddmx_ao, SMPA, LEVEL, 6); DEFINE_RPMPD_VFL(msm8976, vddcx_vfl, RWSC, 2); DEFINE_RPMPD_VFL(msm8976, vddmx_vfl, RWSM, 6); static struct rpmpd *msm8976_rpmpds[] = { [MSM8976_VDDCX] = &msm8976_vddcx, [MSM8976_VDDCX_AO] = &msm8976_vddcx_ao, [MSM8976_VDDCX_VFL] = &msm8976_vddcx_vfl, [MSM8976_VDDMX] = &msm8976_vddmx, [MSM8976_VDDMX_AO] = &msm8976_vddmx_ao, [MSM8976_VDDMX_VFL] = &msm8976_vddmx_vfl, }; static const struct rpmpd_desc msm8976_desc = { .rpmpds = msm8976_rpmpds, .num_pds = ARRAY_SIZE(msm8976_rpmpds), .max_state = RPM_SMD_LEVEL_TURBO_HIGH, }; /* msm8996 RPM Power domains */ DEFINE_RPMPD_PAIR(msm8996, vddcx, vddcx_ao, SMPA, CORNER, 1); DEFINE_RPMPD_PAIR(msm8996, vddmx, vddmx_ao, SMPA, CORNER, 2); DEFINE_RPMPD_CORNER(msm8996, vddsscx, LDOA, 26); DEFINE_RPMPD_VFC(msm8996, vddcx_vfc, SMPA, 1); DEFINE_RPMPD_VFC(msm8996, vddsscx_vfc, LDOA, 26); static struct rpmpd *msm8996_rpmpds[] = { [MSM8996_VDDCX] = &msm8996_vddcx, [MSM8996_VDDCX_AO] = &msm8996_vddcx_ao, [MSM8996_VDDCX_VFC] = &msm8996_vddcx_vfc, [MSM8996_VDDMX] = &msm8996_vddmx, [MSM8996_VDDMX_AO] = &msm8996_vddmx_ao, [MSM8996_VDDSSCX] = &msm8996_vddsscx, [MSM8996_VDDSSCX_VFC] = &msm8996_vddsscx_vfc, }; static const struct rpmpd_desc msm8996_desc = { .rpmpds = msm8996_rpmpds, .num_pds = ARRAY_SIZE(msm8996_rpmpds), .max_state = MAX_8996_RPMPD_STATE, }; /* msm8998 RPM Power domains */ DEFINE_RPMPD_PAIR(msm8998, vddcx, vddcx_ao, RWCX, LEVEL, 0); DEFINE_RPMPD_VFL(msm8998, vddcx_vfl, RWCX, 0); DEFINE_RPMPD_PAIR(msm8998, vddmx, vddmx_ao, RWMX, LEVEL, 0); DEFINE_RPMPD_VFL(msm8998, vddmx_vfl, RWMX, 0); DEFINE_RPMPD_LEVEL(msm8998, vdd_ssccx, RWSC, 0); DEFINE_RPMPD_VFL(msm8998, vdd_ssccx_vfl, RWSC, 0); DEFINE_RPMPD_LEVEL(msm8998, vdd_sscmx, RWSM, 0); DEFINE_RPMPD_VFL(msm8998, vdd_sscmx_vfl, RWSM, 0); static struct rpmpd *msm8998_rpmpds[] = { [MSM8998_VDDCX] = &msm8998_vddcx, [MSM8998_VDDCX_AO] = &msm8998_vddcx_ao, [MSM8998_VDDCX_VFL] = &msm8998_vddcx_vfl, [MSM8998_VDDMX] = &msm8998_vddmx, [MSM8998_VDDMX_AO] = &msm8998_vddmx_ao, [MSM8998_VDDMX_VFL] = &msm8998_vddmx_vfl, [MSM8998_SSCCX] = &msm8998_vdd_ssccx, [MSM8998_SSCCX_VFL] = &msm8998_vdd_ssccx_vfl, [MSM8998_SSCMX] = &msm8998_vdd_sscmx, [MSM8998_SSCMX_VFL] = &msm8998_vdd_sscmx_vfl, }; static const struct rpmpd_desc msm8998_desc = { .rpmpds = msm8998_rpmpds, .num_pds = ARRAY_SIZE(msm8998_rpmpds), .max_state = RPM_SMD_LEVEL_BINNING, }; /* qcs404 RPM Power domains */ DEFINE_RPMPD_PAIR(qcs404, vddmx, vddmx_ao, RWMX, LEVEL, 0); DEFINE_RPMPD_VFL(qcs404, vddmx_vfl, RWMX, 0); DEFINE_RPMPD_LEVEL(qcs404, vdd_lpicx, RWLC, 0); DEFINE_RPMPD_VFL(qcs404, vdd_lpicx_vfl, RWLC, 0); DEFINE_RPMPD_LEVEL(qcs404, vdd_lpimx, RWLM, 0); DEFINE_RPMPD_VFL(qcs404, vdd_lpimx_vfl, RWLM, 0); static struct rpmpd *qcs404_rpmpds[] = { [QCS404_VDDMX] = &qcs404_vddmx, [QCS404_VDDMX_AO] = &qcs404_vddmx_ao, [QCS404_VDDMX_VFL] = &qcs404_vddmx_vfl, [QCS404_LPICX] = &qcs404_vdd_lpicx, [QCS404_LPICX_VFL] = &qcs404_vdd_lpicx_vfl, [QCS404_LPIMX] = &qcs404_vdd_lpimx, [QCS404_LPIMX_VFL] = &qcs404_vdd_lpimx_vfl, }; static const struct rpmpd_desc qcs404_desc = { .rpmpds = qcs404_rpmpds, .num_pds = ARRAY_SIZE(qcs404_rpmpds), .max_state = RPM_SMD_LEVEL_BINNING, }; static const struct of_device_id rpmpd_match_table[] = { { .compatible = "qcom,msm8976-rpmpd", .data = &msm8976_desc }, { .compatible = "qcom,msm8996-rpmpd", .data = &msm8996_desc }, { .compatible = "qcom,msm8998-rpmpd", .data = &msm8998_desc }, { .compatible = "qcom,qcs404-rpmpd", .data = &qcs404_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");
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