Received: by 2002:ac0:a5b6:0:0:0:0:0 with SMTP id m51-v6csp141015imm; Tue, 12 Jun 2018 20:26:18 -0700 (PDT) X-Google-Smtp-Source: ADUXVKIHcW4jgBrh+c+bEO+V7r4gubZllHhNn8jg87xfNrScWAAM+rLeoyaRvmXcTbQcDBmaPkb9 X-Received: by 2002:a17:902:6ac7:: with SMTP id i7-v6mr3337995plt.288.1528860378776; Tue, 12 Jun 2018 20:26:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1528860378; cv=none; d=google.com; s=arc-20160816; b=s6FIVqXDEjugJWkxobX7GohwpYr4Qvc9YRIPqNSDQwoJY8RpGe77V+xklrcmAfITj5 MjhdQG0LyItprw+mHP4KTSmyqzIVbIEqT9/A0e/ONdylmqAj7JV9syhGE+RtOS6SjGPr ARBb5aZmsFqsPrWmECGUkD2FQPL4oTwTTG5yy/KHXJYrKtsz0i7QC5MmJaF1JYtkml/q NW1TFgvYAhivlwdEi14zRSTN6WHu8BrOhiC1dt8LSz9AvHD24yFekeMxBoQPNx97cNNj ubjTJ8NtGll57Jw1eh/1TeiQ7qMAU7VNAvWxsBl0FubuYX1CT5Qwc3BCxhXL7ysjkVr2 B4Hg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject:dmarc-filter :dkim-signature:dkim-signature:arc-authentication-results; bh=Y70x2ZY53C6SgwgDnOO1IGIajNvKdvOakOSAazl7Ae0=; b=yKJ5/VNFbh9bH4nRnSDDQ0f34UZBF4dUYDLdSnlpc6rx/p0qKivNzs01Rv6hlcy8k6 3KAUA/7ioYpfji3nOqGGLAtxagkr5to9QYAosA6bKMjiDkWP7ev+WRAHWrCKVXGSU49O wQ9pC7SsuzKnsFW/ScuyJffLjpEpzWOFWU7KMtfe7BkX3EgzyO8DVfQ4RzlEVcBshmH0 goNUcuoiPYj7E/y+bJzqPaNjFmz02nKK7Y7IEVdboBU0W4G3v0QWPxZV4qSgpglymQCX o7RTCfLWgGdFnj6Rd1pFwTScTHWAcc4FoYXqegSnNByJYGNQViq4n0xNBEWag2szjOPx b4OA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=jl4qiUbC; dkim=pass header.i=@codeaurora.org header.s=default header.b=PtXs5riJ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 7-v6si1792475pll.212.2018.06.12.20.26.04; Tue, 12 Jun 2018 20:26:18 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=jl4qiUbC; dkim=pass header.i=@codeaurora.org header.s=default header.b=PtXs5riJ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933483AbeFMDZk (ORCPT + 99 others); Tue, 12 Jun 2018 23:25:40 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:59372 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932839AbeFMDZi (ORCPT ); Tue, 12 Jun 2018 23:25:38 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id AE84C600D0; Wed, 13 Jun 2018 03:25:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1528860337; bh=IuwkvEf6Tr3HsvQdTLV7kr4eIfbu9c6S56MBa2BvjZo=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=jl4qiUbCa+KkaO6JIzNrOn8ZdYGSC9AAEkK97aGfGjyCqc4uof5ahNShFq/5sr+5e uFXao18nrEVvzGAllhtHmbtzEz7fXlwdJxMx5Ul6k8PMtJkV8qT3SfT4M5ohCruSoO DMiNpjD/X8FWBppSUCs6NcJky+e4miyrfuCOyGMQ= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_SIGNED,T_DKIM_INVALID autolearn=no autolearn_force=no version=3.4.0 Received: from [10.79.40.88] (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rnayak@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 1CB71600D0; Wed, 13 Jun 2018 03:25:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1528860335; bh=IuwkvEf6Tr3HsvQdTLV7kr4eIfbu9c6S56MBa2BvjZo=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=PtXs5riJwA6sbjecnJ3kx8H1KQVE6NIV/nbYsHO99OSe/fa5Yp/20qERz/wjMs23m we/qt4COPY9TEd8g5yetAun+hYBFe/VwohyKVBwKctyqhuZAP000JbpugjQglHd8IW c9enz8H+mGP0ID5OhxXXAGvSFkE6B0zhmi99QvPA= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1CB71600D0 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=rnayak@codeaurora.org Subject: Re: [PATCH v3 6/7] soc: qcom: Add RPMh Power domain driver To: Rob Herring Cc: viresh.kumar@linaro.org, sboyd@kernel.org, andy.gross@linaro.org, ulf.hansson@linaro.org, collinsd@codeaurora.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20180612044052.4402-1-rnayak@codeaurora.org> <20180612044052.4402-7-rnayak@codeaurora.org> <20180612190626.GA23589@rob-hp-laptop> From: Rajendra Nayak Message-ID: <4d13b870-e47f-4fde-c938-ede67262dfcc@codeaurora.org> Date: Wed, 13 Jun 2018 08:55:31 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180612190626.GA23589@rob-hp-laptop> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/13/2018 12:36 AM, Rob Herring wrote: > On Tue, Jun 12, 2018 at 10:10:51AM +0530, Rajendra Nayak wrote: >> The RPMh Power domain driver aggregates the corner votes from various >> consumers for the ARC resources and communicates it to RPMh. >> >> We also add data for all power domains on sdm845 SoC as part of the patch. >> The driver can be extended to support other SoCs which support RPMh >> >> Signed-off-by: Rajendra Nayak >> --- >> drivers/soc/qcom/Kconfig | 9 + >> drivers/soc/qcom/Makefile | 1 + >> drivers/soc/qcom/rpmhpd.c | 427 ++++++++++++++++++++++++ >> include/dt-bindings/power/qcom-rpmhpd.h | 31 ++ > > These includes should go with the binding. will move them to the bindings patch when I resend, thanks. > >> 4 files changed, 468 insertions(+) >> create mode 100644 drivers/soc/qcom/rpmhpd.c >> create mode 100644 include/dt-bindings/power/qcom-rpmhpd.h >> >> diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig >> index 5c54931a7b99..7cb7eba2b997 100644 >> --- a/drivers/soc/qcom/Kconfig >> +++ b/drivers/soc/qcom/Kconfig >> @@ -74,6 +74,15 @@ config QCOM_RMTFS_MEM >> >> Say y here if you intend to boot the modem remoteproc. >> >> +config QCOM_RPMHPD >> + tristate "Qualcomm RPMh Power domain driver" >> + depends on QCOM_RPMH && QCOM_COMMAND_DB >> + help >> + QCOM RPMh Power domain driver to support power-domains with >> + performance states. The driver communicates a performance state >> + value to RPMh which then translates it into corresponding voltage >> + for the voltage rail. >> + >> config QCOM_RPMPD >> tristate "Qualcomm RPM Power domain driver" >> depends on MFD_QCOM_RPM && QCOM_SMD_RPM >> diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile >> index 9550c170de93..499513f63bef 100644 >> --- a/drivers/soc/qcom/Makefile >> +++ b/drivers/soc/qcom/Makefile >> @@ -16,3 +16,4 @@ obj-$(CONFIG_QCOM_SMSM) += smsm.o >> obj-$(CONFIG_QCOM_WCNSS_CTRL) += wcnss_ctrl.o >> obj-$(CONFIG_QCOM_APR) += apr.o >> obj-$(CONFIG_QCOM_RPMPD) += rpmpd.o >> +obj-$(CONFIG_QCOM_RPMHPD) += rpmhpd.o >> diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c >> new file mode 100644 >> index 000000000000..7083ec1590ff >> --- /dev/null >> +++ b/drivers/soc/qcom/rpmhpd.c >> @@ -0,0 +1,427 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +/* Copyright (c) 2018, The Linux Foundation. All rights reserved.*/ >> + >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> + >> +#define domain_to_rpmhpd(domain) container_of(domain, struct rpmhpd, pd) >> + >> +#define DEFINE_RPMHPD_AO(_platform, _name, _active) \ >> + static struct rpmhpd _platform##_##_active; \ >> + static struct rpmhpd _platform##_##_name = { \ >> + .pd = { .name = #_name, }, \ >> + .peer = &_platform##_##_active, \ >> + .res_name = #_name".lvl", \ >> + .valid_state_mask = (BIT(RPMH_ACTIVE_ONLY_STATE) | \ >> + BIT(RPMH_WAKE_ONLY_STATE) | \ >> + BIT(RPMH_SLEEP_STATE)), \ >> + }; \ >> + static struct rpmhpd _platform##_##_active = { \ >> + .pd = { .name = #_active, }, \ >> + .peer = &_platform##_##_name, \ >> + .active_only = true, \ >> + .res_name = #_name".lvl", \ >> + .valid_state_mask = (BIT(RPMH_ACTIVE_ONLY_STATE) | \ >> + BIT(RPMH_WAKE_ONLY_STATE) | \ >> + BIT(RPMH_SLEEP_STATE)), \ >> + } >> + >> +#define DEFINE_RPMHPD(_platform, _name) \ >> + static struct rpmhpd _platform##_##_name = { \ >> + .pd = { .name = #_name, }, \ >> + .res_name = #_name".lvl", \ >> + .valid_state_mask = BIT(RPMH_ACTIVE_ONLY_STATE), \ >> + } >> + >> +/* >> + * This is the number of bytes used for each command DB aux data entry of an >> + * ARC resource. >> + */ >> +#define RPMH_ARC_LEVEL_SIZE 2 >> +#define RPMH_ARC_MAX_LEVELS 16 >> + >> +struct rpmhpd { >> + struct device *dev; >> + struct generic_pm_domain pd; >> + struct rpmhpd *peer; >> + const bool active_only; >> + unsigned int corner; >> + unsigned int active_corner; >> + u32 level[RPMH_ARC_MAX_LEVELS]; >> + int level_count; >> + bool enabled; >> + const char *res_name; >> + u32 addr; >> + u8 valid_state_mask; >> +}; >> + >> +struct rpmhpd_desc { >> + struct rpmhpd **rpmhpds; >> + size_t num_pds; >> +}; >> + >> +static DEFINE_MUTEX(rpmhpd_lock); >> + >> +/* sdm845 RPMh Power domains */ >> +DEFINE_RPMHPD(sdm845, ebi); >> +DEFINE_RPMHPD_AO(sdm845, mx, mx_ao); >> +DEFINE_RPMHPD_AO(sdm845, cx, cx_ao); >> +DEFINE_RPMHPD(sdm845, lmx); >> +DEFINE_RPMHPD(sdm845, lcx); >> +DEFINE_RPMHPD(sdm845, gfx); >> +DEFINE_RPMHPD(sdm845, mss); >> + >> +static struct rpmhpd *sdm845_rpmhpds[] = { >> + [SDM845_EBI] = &sdm845_ebi, >> + [SDM845_MX] = &sdm845_mx, >> + [SDM845_MX_AO] = &sdm845_mx_ao, >> + [SDM845_CX] = &sdm845_cx, >> + [SDM845_CX_AO] = &sdm845_cx_ao, >> + [SDM845_LMX] = &sdm845_lmx, >> + [SDM845_LCX] = &sdm845_lcx, >> + [SDM845_GFX] = &sdm845_gfx, >> + [SDM845_MSS] = &sdm845_mss, >> +}; >> + >> +static const struct rpmhpd_desc sdm845_desc = { >> + .rpmhpds = sdm845_rpmhpds, >> + .num_pds = ARRAY_SIZE(sdm845_rpmhpds), >> +}; >> + >> +static const struct of_device_id rpmhpd_match_table[] = { >> + { .compatible = "qcom,sdm845-rpmhpd", .data = &sdm845_desc }, >> + { } >> +}; >> +MODULE_DEVICE_TABLE(of, rpmhpd_match_table); >> + >> +static int rpmhpd_send_corner(struct rpmhpd *pd, int state, >> + unsigned int corner, bool sync) >> +{ >> + struct tcs_cmd cmd = { >> + .addr = pd->addr, >> + .data = corner, >> + }; >> + >> + if (sync) >> + return rpmh_write(pd->dev, state, &cmd, 1); >> + else >> + return rpmh_write_async(pd->dev, state, &cmd, 1); >> +} >> + >> +static int rpmhpd_send_corner_sync(struct rpmhpd *pd, int state, >> + unsigned int corner) >> +{ >> + return rpmhpd_send_corner(pd, state, corner, true); >> +} >> + >> +static int rpmhpd_send_corner_async(struct rpmhpd *pd, int state, >> + unsigned int corner) >> +{ >> + return rpmhpd_send_corner(pd, state, corner, false); >> +}; >> + >> +static void to_active_sleep(struct rpmhpd *pd, unsigned int corner, >> + unsigned int *active, unsigned int *sleep) >> +{ >> + *active = corner; >> + >> + if (pd->active_only) >> + *sleep = 0; >> + else >> + *sleep = *active; >> +} >> + >> +/* >> + * This function is used to aggregate the votes across the active only >> + * resources and its peers. The aggregated votes are send to RPMh as >> + * ACTIVE_ONLY votes (which take effect immediately), as WAKE_ONLY votes >> + * (applied by RPMh on system wakeup) and as SLEEP votes (applied by RPMh >> + * on system sleep). >> + * We send ACTIVE_ONLY votes for resources without any peers. For others, >> + * which have an active only peer, all 3 Votes are sent. >> + */ >> +static int rpmhpd_aggregate_corner(struct rpmhpd *pd, unsigned int corner) >> +{ >> + int ret = -EINVAL; >> + struct rpmhpd *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, 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); >> + >> + if (pd->valid_state_mask & BIT(RPMH_ACTIVE_ONLY_STATE)) { >> + /* >> + * Wait for an ack only when we are increasing the >> + * perf state of the power domain >> + */ >> + if (active_corner > pd->active_corner) >> + ret = rpmhpd_send_corner_sync(pd, >> + RPMH_ACTIVE_ONLY_STATE, >> + active_corner); >> + else >> + ret = rpmhpd_send_corner_async(pd, >> + RPMH_ACTIVE_ONLY_STATE, >> + active_corner); >> + if (ret) >> + return ret; >> + pd->active_corner = active_corner; >> + if (peer) >> + peer->active_corner = active_corner; >> + } >> + >> + if (pd->valid_state_mask & BIT(RPMH_WAKE_ONLY_STATE)) { >> + ret = rpmhpd_send_corner_async(pd, RPMH_WAKE_ONLY_STATE, >> + active_corner); >> + if (ret) >> + return ret; >> + } >> + >> + sleep_corner = max(this_sleep_corner, peer_sleep_corner); >> + >> + if (pd->valid_state_mask & BIT(RPMH_SLEEP_STATE)) >> + ret = rpmhpd_send_corner_async(pd, RPMH_SLEEP_STATE, >> + sleep_corner); >> + >> + return ret; >> +} >> + >> +static int rpmhpd_power_on(struct generic_pm_domain *domain) >> +{ >> + struct rpmhpd *pd = domain_to_rpmhpd(domain); >> + int ret = 0; >> + >> + mutex_lock(&rpmhpd_lock); >> + >> + pd->enabled = true; >> + >> + if (pd->corner) >> + ret = rpmhpd_aggregate_corner(pd, pd->corner); >> + >> + mutex_unlock(&rpmhpd_lock); >> + >> + return ret; >> +} >> + >> +static int rpmhpd_power_off(struct generic_pm_domain *domain) >> +{ >> + struct rpmhpd *pd = domain_to_rpmhpd(domain); >> + int ret = 0; >> + >> + mutex_lock(&rpmhpd_lock); >> + >> + if (pd->level[0] == 0) >> + ret = rpmhpd_aggregate_corner(pd, 0); >> + >> + if (!ret) >> + pd->enabled = false; >> + >> + mutex_unlock(&rpmhpd_lock); >> + >> + return ret; >> +} >> + >> +static int rpmhpd_set_performance(struct generic_pm_domain *domain, >> + unsigned int state) >> +{ >> + struct rpmhpd *pd = domain_to_rpmhpd(domain); >> + int ret = 0, i; >> + >> + mutex_lock(&rpmhpd_lock); >> + >> + for (i = 0; i < pd->level_count; i++) >> + if (state <= pd->level[i]) >> + break; >> + >> + if (i == pd->level_count) { >> + ret = -EINVAL; >> + dev_err(pd->dev, "invalid state=%u for domain %s", >> + state, pd->pd.name); >> + goto out; >> + } >> + >> + pd->corner = i; >> + >> + if (!pd->enabled) >> + goto out; >> + >> + ret = rpmhpd_aggregate_corner(pd, i); >> +out: >> + mutex_unlock(&rpmhpd_lock); >> + >> + return ret; >> +} >> + >> +static unsigned int rpmhpd_get_performance(struct generic_pm_domain *genpd, >> + struct dev_pm_opp *opp) >> +{ >> + struct device_node *np; >> + unsigned int corner = 0; >> + >> + np = dev_pm_opp_get_of_node(opp); >> + if (of_property_read_u32(np, "qcom,level", &corner)) { >> + pr_err("%s: missing 'qcom,level' property\n", __func__); >> + return 0; >> + } >> + >> + of_node_put(np); >> + >> + return corner; >> +} >> + >> +static int rpmhpd_update_level_mapping(struct rpmhpd *rpmhpd) >> +{ >> + int i, j, len, ret; >> + u8 buf[RPMH_ARC_MAX_LEVELS * RPMH_ARC_LEVEL_SIZE]; >> + >> + len = cmd_db_read_aux_data_len(rpmhpd->res_name); >> + if (len <= 0) >> + return len; >> + >> + if (len > RPMH_ARC_MAX_LEVELS * RPMH_ARC_LEVEL_SIZE) >> + return -EINVAL; >> + >> + ret = cmd_db_read_aux_data(rpmhpd->res_name, buf, len); >> + if (ret < 0) >> + return ret; >> + >> + rpmhpd->level_count = len / RPMH_ARC_LEVEL_SIZE; >> + >> + for (i = 0; i < rpmhpd->level_count; i++) { >> + rpmhpd->level[i] = 0; >> + for (j = 0; j < RPMH_ARC_LEVEL_SIZE; j++) >> + rpmhpd->level[i] |= >> + buf[i * RPMH_ARC_LEVEL_SIZE + j] << (8 * j); >> + >> + /* >> + * The AUX data may be zero padded. These 0 valued entries at >> + * the end of the map must be ignored. >> + */ >> + if (i > 0 && rpmhpd->level[i] == 0) { >> + rpmhpd->level_count = i; >> + break; >> + } >> + pr_dbg("%s: ARC hlvl=%2d --> vlvl=%4u\n", rpmhpd->res_name, i, >> + rpmhpd->level[i]); >> + } >> + >> + return 0; >> +} >> + >> +static int rpmhpd_probe(struct platform_device *pdev) >> +{ >> + int i, ret; >> + size_t num; >> + struct genpd_onecell_data *data; >> + struct rpmhpd **rpmhpds; >> + const struct rpmhpd_desc *desc; >> + >> + desc = of_device_get_match_data(&pdev->dev); >> + if (!desc) >> + return -EINVAL; >> + >> + rpmhpds = desc->rpmhpds; >> + 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; >> + >> + ret = cmd_db_ready(); >> + if (ret) { >> + if (ret != -EPROBE_DEFER) >> + dev_err(&pdev->dev, "Command DB unavailable, ret=%d\n", >> + ret); >> + return ret; >> + } >> + >> + for (i = 0; i < num; i++) { >> + if (!rpmhpds[i]) { >> + dev_warn(&pdev->dev, "rpmhpds[] with empty entry at index=%d\n", >> + i); >> + continue; >> + } >> + >> + rpmhpds[i]->dev = &pdev->dev; >> + rpmhpds[i]->addr = cmd_db_read_addr(rpmhpds[i]->res_name); >> + if (!rpmhpds[i]->addr) { >> + dev_err(&pdev->dev, "Could not find RPMh address for resource %s\n", >> + rpmhpds[i]->res_name); >> + return -ENODEV; >> + } >> + >> + ret = cmd_db_read_slave_id(rpmhpds[i]->res_name); >> + if (ret != CMD_DB_HW_ARC) { >> + dev_err(&pdev->dev, "RPMh slave ID mismatch\n"); >> + return -EINVAL; >> + } >> + >> + ret = rpmhpd_update_level_mapping(rpmhpds[i]); >> + if (ret) >> + return ret; >> + >> + rpmhpds[i]->pd.power_off = rpmhpd_power_off; >> + rpmhpds[i]->pd.power_on = rpmhpd_power_on; >> + rpmhpds[i]->pd.set_performance_state = rpmhpd_set_performance; >> + rpmhpds[i]->pd.opp_to_performance_state = rpmhpd_get_performance; >> + pm_genpd_init(&rpmhpds[i]->pd, NULL, true); >> + >> + data->domains[i] = &rpmhpds[i]->pd; >> + } >> + >> + return of_genpd_add_provider_onecell(pdev->dev.of_node, data); >> +} >> + >> +static int rpmhpd_remove(struct platform_device *pdev) >> +{ >> + of_genpd_del_provider(pdev->dev.of_node); >> + return 0; >> +} >> + >> +static struct platform_driver rpmhpd_driver = { >> + .driver = { >> + .name = "qcom-rpmhpd", >> + .of_match_table = rpmhpd_match_table, >> + }, >> + .probe = rpmhpd_probe, >> + .remove = rpmhpd_remove, >> +}; >> + >> +static int __init rpmhpd_init(void) >> +{ >> + return platform_driver_register(&rpmhpd_driver); >> +} >> +core_initcall(rpmhpd_init); >> + >> +static void __exit rpmhpd_exit(void) >> +{ >> + platform_driver_unregister(&rpmhpd_driver); >> +} >> +module_exit(rpmhpd_exit); >> + >> +MODULE_DESCRIPTION("Qualcomm Technologies, Inc. RPMh Power Domain Driver"); >> +MODULE_LICENSE("GPL v2"); >> +MODULE_ALIAS("platform:qcom-rpmhpd"); >> diff --git a/include/dt-bindings/power/qcom-rpmhpd.h b/include/dt-bindings/power/qcom-rpmhpd.h >> new file mode 100644 >> index 000000000000..b01ae2452603 >> --- /dev/null >> +++ b/include/dt-bindings/power/qcom-rpmhpd.h >> @@ -0,0 +1,31 @@ >> +/* SPDX-License-Identifier: GPL-2.0 */ >> +/* Copyright (c) 2018, The Linux Foundation. All rights reserved. */ >> + >> +#ifndef _DT_BINDINGS_POWER_QCOM_RPMHPD_H >> +#define _DT_BINDINGS_POWER_QCOM_RPMHPD_H >> + >> +/* SDM845 Power Domain Indexes */ >> +#define SDM845_EBI 0 >> +#define SDM845_MX 1 >> +#define SDM845_MX_AO 2 >> +#define SDM845_CX 3 >> +#define SDM845_CX_AO 4 >> +#define SDM845_LMX 5 >> +#define SDM845_LCX 6 >> +#define SDM845_GFX 7 >> +#define SDM845_MSS 8 >> + >> +/* SDM845 Power Domain performance levels */ >> +#define RPMH_REGULATOR_LEVEL_OFF 0 >> +#define RPMH_REGULATOR_LEVEL_RETENTION 16 >> +#define RPMH_REGULATOR_LEVEL_MIN_SVS 48 >> +#define RPMH_REGULATOR_LEVEL_LOW_SVS 64 >> +#define RPMH_REGULATOR_LEVEL_SVS 128 >> +#define RPMH_REGULATOR_LEVEL_SVS_L1 192 >> +#define RPMH_REGULATOR_LEVEL_NOM 256 >> +#define RPMH_REGULATOR_LEVEL_NOM_L1 320 >> +#define RPMH_REGULATOR_LEVEL_NOM_L2 336 >> +#define RPMH_REGULATOR_LEVEL_TURBO 384 >> +#define RPMH_REGULATOR_LEVEL_TURBO_L1 416 >> + >> +#endif >> -- >> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member >> of Code Aurora Forum, hosted by The Linux Foundation >> >> -- >> To unsubscribe from this list: send the line "unsubscribe devicetree" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation