From patchwork Thu Jun 2 07:09:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 579060 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E90BCCA479 for ; Thu, 2 Jun 2022 07:09:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231593AbiFBHJo (ORCPT ); Thu, 2 Jun 2022 03:09:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58616 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231563AbiFBHJk (ORCPT ); Thu, 2 Jun 2022 03:09:40 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA03755BF for ; Thu, 2 Jun 2022 00:09:39 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id l13so6357128lfp.11 for ; Thu, 02 Jun 2022 00:09:39 -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=t/mC2ab4egIvRd54WAnllrEiQZ9AIOTgJQtdTx/MY40=; b=XmmfanbshclpFvDaJ0Lon3sjDrtIMvi0S/pf1TpF33XZXhPdn/K3joDUjr8nUZ+TpR 9v/6+Jbi79PpSciJzWiley4/Pntz0OEvE20P8iZMhQ691C7ENatLw6MagEW2373cl6mf hq+vgIZFY2v8XGHAl+7nBSRXZA3YP1HdQ4O0cXETckzkiiC8m/PVXZxkHyIA9T54UiP8 Kby00OZVMXxPQ3AUJgrV0D7o9v8TN5vzVaq1rM6r3wWq7MTC+k1ajZsdJ0KVQoORD0tV fRc+p4XSGj3EmTL8hKY5PTVtOBItfUct5IupaFEN8dckZwrmUaYESJH27eJRX5opHVR7 AgSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=t/mC2ab4egIvRd54WAnllrEiQZ9AIOTgJQtdTx/MY40=; b=46PTFT+7V1eh30JN7uecd2tOJAts6kJ0/ahdPUBlN50CWIy3R8dKea/IoF69OHusHM xHmYWVQRbo+WqtxiN14DFh90/9lyOaEaCqglGk7IEUVb5WRbr6kvQtSw3R44BbYq69Wx sQ2A3P55esHh/o+LT+5tj4ArrIvXMR+TSuKwmgmHph2aBRX5khHksPgnNK+f6/NPLyoI YgReFNx4WBgwCEctYLEjEXzZo9JdGhRdFtJXGPgZv4sLGxzEuAhB10bb6rmvKU0e7YJ+ AmiCiuneWvFxmM01ZUwh3I9tiQ/vbcfApF56nq5MPePuyb+37IH/+psPx+2CVPI9o5ic cC/w== X-Gm-Message-State: AOAM530rl1ckIIt4N8gUcgg5L2hASJSa4/mVdj9z0IXPVCJZGX88Z9x9 XLtaQDOCRJC1HTJiPqIoWm4wdWWiyEMgH2JE X-Google-Smtp-Source: ABdhPJy3NFC2kUkTNxqWKI6qiKJxCtyA1gsKiCV6Jbmzr9/IeK2EcqmxoZLatMqG5OdltJaaPExS0Q== X-Received: by 2002:ac2:4c15:0:b0:479:cb6:f8da with SMTP id t21-20020ac24c15000000b004790cb6f8damr2115184lfq.484.1654153778084; Thu, 02 Jun 2022 00:09:38 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id d25-20020a056512369900b0047255d21114sm870218lfs.67.2022.06.02.00.09.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jun 2022 00:09:37 -0700 (PDT) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Vinod Koul , Kishon Vijay Abraham I Cc: Philipp Zabel , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org Subject: [RFC PATCH v3 29/30] phy: qcom-qmp-pcie-msm8996: use bulk reset_control API Date: Thu, 2 Jun 2022 10:09:08 +0300 Message-Id: <20220602070909.1666068-30-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220602070909.1666068-1-dmitry.baryshkov@linaro.org> References: <20220602070909.1666068-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Switch qcom-qmp-pcie-msm8996 driver to use reset_control_bulk_assert / _deassert functions rather than hardcoding the loops in the driver itself. Signed-off-by: Dmitry Baryshkov --- .../phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c | 49 +++++++------------ 1 file changed, 18 insertions(+), 31 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c index 51da3a3a199e..48ea1de81d7c 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c @@ -340,7 +340,7 @@ struct qcom_qmp { struct device *dev; struct clk_bulk_data *clks; - struct reset_control **resets; + struct reset_control_bulk_data *resets; struct regulator_bulk_data *vregs; struct qmp_phy **phys; @@ -489,7 +489,7 @@ static int qcom_qmp_phy_pcie_msm8996_com_init(struct qmp_phy *qphy) struct qcom_qmp *qmp = qphy->qmp; const struct qmp_phy_cfg *cfg = qphy->cfg; void __iomem *serdes = qphy->serdes; - int ret, i; + int ret; mutex_lock(&qmp->phy_mutex); if (qmp->init_count++) { @@ -504,22 +504,16 @@ static int qcom_qmp_phy_pcie_msm8996_com_init(struct qmp_phy *qphy) goto err_unlock; } - for (i = 0; i < cfg->num_resets; i++) { - ret = reset_control_assert(qmp->resets[i]); - if (ret) { - dev_err(qmp->dev, "%s reset assert failed\n", - cfg->reset_list[i]); - goto err_disable_regulators; - } + ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); + if (ret) { + dev_err(qmp->dev, "reset assert failed\n"); + goto err_disable_regulators; } - for (i = cfg->num_resets - 1; i >= 0; i--) { - ret = reset_control_deassert(qmp->resets[i]); - if (ret) { - dev_err(qmp->dev, "%s reset deassert failed\n", - qphy->cfg->reset_list[i]); - goto err_assert_reset; - } + ret = reset_control_bulk_deassert(cfg->num_resets, qmp->resets); + if (ret) { + dev_err(qmp->dev, "reset deassert failed\n"); + goto err_disable_regulators; } ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks); @@ -534,8 +528,7 @@ static int qcom_qmp_phy_pcie_msm8996_com_init(struct qmp_phy *qphy) return 0; err_assert_reset: - while (++i < cfg->num_resets) - reset_control_assert(qmp->resets[i]); + reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); err_unlock: @@ -549,7 +542,6 @@ static int qcom_qmp_phy_pcie_msm8996_com_exit(struct qmp_phy *qphy) struct qcom_qmp *qmp = qphy->qmp; const struct qmp_phy_cfg *cfg = qphy->cfg; void __iomem *serdes = qphy->serdes; - int i = cfg->num_resets; mutex_lock(&qmp->phy_mutex); if (--qmp->init_count) { @@ -564,8 +556,7 @@ static int qcom_qmp_phy_pcie_msm8996_com_exit(struct qmp_phy *qphy) qphy_setbits(serdes, cfg->regs[QPHY_COM_POWER_DOWN_CONTROL], SW_PWRDN); - while (--i >= 0) - reset_control_assert(qmp->resets[i]); + reset_control_bulk_assert(cfg->num_resets, qmp->resets); clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks); @@ -769,23 +760,19 @@ static int qcom_qmp_phy_pcie_msm8996_reset_init(struct device *dev, const struct { struct qcom_qmp *qmp = dev_get_drvdata(dev); int i; + int ret; qmp->resets = devm_kcalloc(dev, cfg->num_resets, sizeof(*qmp->resets), GFP_KERNEL); if (!qmp->resets) return -ENOMEM; - for (i = 0; i < cfg->num_resets; i++) { - struct reset_control *rst; - const char *name = cfg->reset_list[i]; + for (i = 0; i < cfg->num_resets; i++) + qmp->resets[i].id = cfg->reset_list[i]; - rst = devm_reset_control_get_exclusive(dev, name); - if (IS_ERR(rst)) { - dev_err(dev, "failed to get %s reset\n", name); - return PTR_ERR(rst); - } - qmp->resets[i] = rst; - } + ret = devm_reset_control_bulk_get_exclusive(dev, cfg->num_resets, qmp->resets); + if (ret) + return dev_err_probe(dev, ret, "failed to get resets\n"); return 0; }