From patchwork Tue Aug 17 00:54:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 12439573 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05132C43216 for ; Tue, 17 Aug 2021 00:56:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DCAE360EE0 for ; Tue, 17 Aug 2021 00:56:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237706AbhHQA46 (ORCPT ); Mon, 16 Aug 2021 20:56:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40080 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235784AbhHQAzu (ORCPT ); Mon, 16 Aug 2021 20:55:50 -0400 Received: from mail-lj1-x22f.google.com (mail-lj1-x22f.google.com [IPv6:2a00:1450:4864:20::22f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 509BDC0613CF for ; Mon, 16 Aug 2021 17:55:18 -0700 (PDT) Received: by mail-lj1-x22f.google.com with SMTP id d16so11985964ljq.4 for ; Mon, 16 Aug 2021 17:55:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wdu5a/cMDbATqqiF4Vpee9GEfvuO3Zi0W+N+1NhGvAs=; b=KadqBNUFvId8+sROkIoWW2FnIiISPA/xpZWhqmtLgHDQHk5ltVM9Jgu60gY6RHkhhU LxZfK3sQvb2jKcgpbunWaDbUXqzuuNAoBiRd/+aZ6ZlKUbctO+qgDzwoU8spR3DMw9/R 2ErU12GwvauMTdGSM+eBF1gUNlVHdg+JTKJ6WJ6UIq9jrevyeoLYCbT8n83RcBz5AgPA 7ITGMU2aIZBqx+9cPVoj5uPuPEyFDbj3EsmIoCMwaCeme7ugesPolg0LvwnnyEYGVBd0 HQkA6lOYvqUppAIJVQdlmtl51ODC6UeKWmNnXFk6X9c90iuFUn3oHF9d1QqEl3AV1jCG 13Gg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=wdu5a/cMDbATqqiF4Vpee9GEfvuO3Zi0W+N+1NhGvAs=; b=P+cQV4QPSBvJhBMrkpHYkVj2JTl1nWpQHom0WxB2cLHD9p+GMbrkt9DKKDlFzxyTlb TmzD9zI9G59B77HOiebP3PB0Ew8kUXEk2C/zzeqKG4HkjHgS+LECmy4IA3GxvNnP+EFz bnTWqHGS/SSj8RsFy99cFNR/Fc5XBb+8FFitCA36nSonMN4t6hfGjLAQX7XETAfB0iQB 39O0bJiFxL5+3Ja1OyRTrP77T63pE1HY7hZpYHORU2HBhbCdfYbDGRUD8ISxiS3+DuO7 zM31iVUpLlmZVdnNgC5QTI3MT5lprpy1olFB+eG5hsRrgHGonKVmANNwaL07tXXMSk1Y 8j4Q== X-Gm-Message-State: AOAM531ji4twGcuovFHesNEyOJ6szkrZ1v+kJATWPRg/bEL7QT/aHSZ4 cFkcVCrf3OAAjp6nxaVLsj3G6g== X-Google-Smtp-Source: ABdhPJyykVmUp2+uL524zpEVpdzv1pv0gVNB4w0uBgg1/3eS2V8TRDR8U1hnV+vjiLEctppv61IqLQ== X-Received: by 2002:a05:651c:1257:: with SMTP id h23mr769675ljh.49.1629161716645; Mon, 16 Aug 2021 17:55:16 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id z6sm40719lfb.251.2021.08.16.17.55.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Aug 2021 17:55:16 -0700 (PDT) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Ulf Hansson , Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz , Kalle Valo , "David S. Miller" , Jakub Kicinski , Stanimir Varbanov Cc: linux-arm-msm@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [RFC PATCH 04/15] ath10k: add support for pwrseq sequencing Date: Tue, 17 Aug 2021 03:54:56 +0300 Message-Id: <20210817005507.1507580-5-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210817005507.1507580-1-dmitry.baryshkov@linaro.org> References: <20210817005507.1507580-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Power sequencing for Qualcomm WiFi+BT chipsets are being reworked to use pwrseq rather than individually handling all the regulators. Add support for pwrseq to ath10k SNOC driver. Signed-off-by: Dmitry Baryshkov --- drivers/net/wireless/ath/ath10k/snoc.c | 63 ++++++++++++++++++++------ drivers/net/wireless/ath/ath10k/snoc.h | 2 + 2 files changed, 52 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index ea00fbb15601..870ed28d01a6 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "ce.h" #include "coredump.h" @@ -42,7 +43,6 @@ static char *const ce_name[] = { }; static const char * const ath10k_regulators[] = { - "vdd-0.8-cx-mx", "vdd-1.8-xo", "vdd-1.3-rfa", "vdd-3.3-ch0", @@ -1010,10 +1010,17 @@ static int ath10k_hw_power_on(struct ath10k *ar) ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power on\n"); - ret = regulator_bulk_enable(ar_snoc->num_vregs, ar_snoc->vregs); + if (ar_snoc->pwrseq) + ret = pwrseq_full_power_on(ar_snoc->pwrseq); + else + ret = regulator_bulk_enable(ar_snoc->num_vregs, ar_snoc->vregs); if (ret) return ret; + ret = regulator_enable(ar_snoc->vreg_cx_mx); + if (ret) + goto vreg_bulk_off; + ret = clk_bulk_prepare_enable(ar_snoc->num_clks, ar_snoc->clks); if (ret) goto vreg_off; @@ -1021,7 +1028,13 @@ static int ath10k_hw_power_on(struct ath10k *ar) return ret; vreg_off: - regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs); + regulator_disable(ar_snoc->vreg_cx_mx); +vreg_bulk_off: + if (ar_snoc->pwrseq) + pwrseq_power_off(ar_snoc->pwrseq); + else + regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs); + return ret; } @@ -1033,6 +1046,14 @@ static int ath10k_hw_power_off(struct ath10k *ar) clk_bulk_disable_unprepare(ar_snoc->num_clks, ar_snoc->clks); + regulator_disable(ar_snoc->vreg_cx_mx); + + if (ar_snoc->pwrseq) { + pwrseq_power_off(ar_snoc->pwrseq); + + return 0; + } + return regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs); } @@ -1691,20 +1712,36 @@ static int ath10k_snoc_probe(struct platform_device *pdev) goto err_release_resource; } - ar_snoc->num_vregs = ARRAY_SIZE(ath10k_regulators); - ar_snoc->vregs = devm_kcalloc(&pdev->dev, ar_snoc->num_vregs, - sizeof(*ar_snoc->vregs), GFP_KERNEL); - if (!ar_snoc->vregs) { - ret = -ENOMEM; + ar_snoc->pwrseq = devm_pwrseq_get_optional(&pdev->dev, "wifi"); + if (IS_ERR(ar_snoc->pwrseq)) { + ret = PTR_ERR(ar_snoc->pwrseq); + if (ret != -EPROBE_DEFER) + ath10k_warn(ar, "failed to acquire pwrseq: %d\n", ret); goto err_free_irq; } - for (i = 0; i < ar_snoc->num_vregs; i++) - ar_snoc->vregs[i].supply = ath10k_regulators[i]; - ret = devm_regulator_bulk_get(&pdev->dev, ar_snoc->num_vregs, - ar_snoc->vregs); - if (ret < 0) + if (!ar_snoc->pwrseq) { + ar_snoc->num_vregs = ARRAY_SIZE(ath10k_regulators); + ar_snoc->vregs = devm_kcalloc(&pdev->dev, ar_snoc->num_vregs, + sizeof(*ar_snoc->vregs), GFP_KERNEL); + if (!ar_snoc->vregs) { + ret = -ENOMEM; + goto err_free_irq; + } + for (i = 0; i < ar_snoc->num_vregs; i++) + ar_snoc->vregs[i].supply = ath10k_regulators[i]; + + ret = devm_regulator_bulk_get(&pdev->dev, ar_snoc->num_vregs, + ar_snoc->vregs); + if (ret < 0) + goto err_free_irq; + } + + ar_snoc->vreg_cx_mx = devm_regulator_get(&pdev->dev, "vdd-0.8-cx-mx"); + if (IS_ERR(ar_snoc->vreg_cx_mx)) { + ret = PTR_ERR(ar_snoc->vreg_cx_mx); goto err_free_irq; + } ar_snoc->num_clks = ARRAY_SIZE(ath10k_clocks); ar_snoc->clks = devm_kcalloc(&pdev->dev, ar_snoc->num_clks, diff --git a/drivers/net/wireless/ath/ath10k/snoc.h b/drivers/net/wireless/ath/ath10k/snoc.h index 5095d1893681..16cfd72180cd 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.h +++ b/drivers/net/wireless/ath/ath10k/snoc.h @@ -72,8 +72,10 @@ struct ath10k_snoc { struct timer_list rx_post_retry; struct regulator_bulk_data *vregs; size_t num_vregs; + struct regulator *vreg_cx_mx; struct clk_bulk_data *clks; size_t num_clks; + struct pwrseq *pwrseq; struct ath10k_qmi *qmi; unsigned long flags; bool xo_cal_supported;