From patchwork Thu Jul 29 12:00:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajendra Nayak X-Patchwork-Id: 12408511 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,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 F1B37C4320A for ; Thu, 29 Jul 2021 12:02:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDD6260F43 for ; Thu, 29 Jul 2021 12:02:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232122AbhG2MC3 (ORCPT ); Thu, 29 Jul 2021 08:02:29 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:38392 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235665AbhG2MC1 (ORCPT ); Thu, 29 Jul 2021 08:02:27 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1627560145; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=688UHfNbZQ+iDNG/VQQ6XUTKr5YW2SaiI8zFcb4yE/k=; b=C5BNfTlWbyFRlcr9870nSRvoYDpsrQRkb+OsNOY7KOHY+u5SOabJBbJWF24SFL+pfD7gSVZp JFAakG3p2sfFEiTOukhQcT2zap8GnQDipUwkM70YTOxRRRAJ9jZlYuYosUC86Ahe7nOS2N9i QDvBKqNAnuqYLPhR+hMl3mnhqOg= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n03.prod.us-east-1.postgun.com with SMTP id 610298821dd16c87888359ef (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 29 Jul 2021 12:01:06 GMT Sender: rnayak=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 85D94C4360C; Thu, 29 Jul 2021 12:01:04 +0000 (UTC) Received: from blr-ubuntu-173.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rnayak) by smtp.codeaurora.org (Postfix) with ESMTPSA id A781EC433D3; Thu, 29 Jul 2021 12:01:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A781EC433D3 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=rnayak@codeaurora.org From: Rajendra Nayak To: agross@kernel.org, bjorn.andersson@linaro.org, srinivas.kandagatla@linaro.org, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, rbokka@codeaurora.org, dianders@chromium.org, Rajendra Nayak Subject: [PATCH v2 2/3] nvmem: qfprom: sc7280: Handle the additional power-domains vote Date: Thu, 29 Jul 2021 17:30:35 +0530 Message-Id: <1627560036-1626-3-git-send-email-rnayak@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1627560036-1626-1-git-send-email-rnayak@codeaurora.org> References: <1627560036-1626-1-git-send-email-rnayak@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On sc7280, to reliably blow fuses, we need an additional vote on max performance state of 'MX' power-domain. Add support for power-domain performance state voting in the driver. Signed-off-by: Rajendra Nayak --- drivers/nvmem/qfprom.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c index 81fbad5..b5f27df 100644 --- a/drivers/nvmem/qfprom.c +++ b/drivers/nvmem/qfprom.c @@ -12,6 +12,8 @@ #include #include #include +#include +#include #include #include @@ -139,6 +141,9 @@ static void qfprom_disable_fuse_blowing(const struct qfprom_priv *priv, { int ret; + dev_pm_genpd_set_performance_state(priv->dev, 0); + pm_runtime_put(priv->dev); + /* * This may be a shared rail and may be able to run at a lower rate * when we're not blowing fuses. At the moment, the regulator framework @@ -212,6 +217,14 @@ static int qfprom_enable_fuse_blowing(const struct qfprom_priv *priv, goto err_clk_rate_set; } + ret = pm_runtime_get_sync(priv->dev); + if (ret < 0) { + pm_runtime_put_noidle(priv->dev); + dev_err(priv->dev, "Failed to enable power-domain\n"); + goto err_reg_enable; + } + dev_pm_genpd_set_performance_state(priv->dev, INT_MAX); + old->timer_val = readl(priv->qfpconf + QFPROM_BLOW_TIMER_OFFSET); old->accel_val = readl(priv->qfpconf + QFPROM_ACCEL_OFFSET); writel(priv->soc_data->qfprom_blow_timer_value, @@ -221,6 +234,8 @@ static int qfprom_enable_fuse_blowing(const struct qfprom_priv *priv, return 0; +err_reg_enable: + regulator_disable(priv->vcc); err_clk_rate_set: clk_set_rate(priv->secclk, old->clk_rate); err_clk_prepared: @@ -320,6 +335,11 @@ static int qfprom_reg_read(void *context, return 0; } +static void qfprom_runtime_disable(void *data) +{ + pm_runtime_disable(data); +} + static const struct qfprom_soc_data qfprom_7_8_data = { .accel_value = 0xD10, .qfprom_blow_timer_value = 25, @@ -420,6 +440,12 @@ static int qfprom_probe(struct platform_device *pdev) econfig.reg_write = qfprom_reg_write; } + ret = devm_add_action_or_reset(dev, qfprom_runtime_disable, dev); + if (ret) + return ret; + + pm_runtime_enable(dev); + nvmem = devm_nvmem_register(dev, &econfig); return PTR_ERR_OR_ZERO(nvmem);