From patchwork Tue Apr 27 07:33:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 428040 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 6AE8FC43460 for ; Tue, 27 Apr 2021 07:34:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3D45561152 for ; Tue, 27 Apr 2021 07:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234917AbhD0HfN (ORCPT ); Tue, 27 Apr 2021 03:35:13 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:39624 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234882AbhD0HfL (ORCPT ); Tue, 27 Apr 2021 03:35:11 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1619508869; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=hZn72tXr0t5PDH8qUTDPhuudJrk72Hz5QQDFLRX2+xA=; b=WAT7bq9O6sFd7szSnncJyyokT/ZKsXOjzIzeyuJV36nf+kaLU3H8qvudGE16+NFbFLJghxrj V/A53H7NbKJ7b+nQX4BRgFqqEKVkKSQVKofTzuLXQyGFNLkWgZZswChGku8ys0i0/haL7at9 UZ/aYoGJtNnBGxzEMypENgs/St4= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== 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-west-2.postgun.com with SMTP id 6087be75e0e9c9a6b690e869 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 27 Apr 2021 07:34:13 GMT Sender: sibis=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D94B2C433D3; Tue, 27 Apr 2021 07:34:13 +0000 (UTC) Received: from blr-ubuntu-87.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: sibis) by smtp.codeaurora.org (Postfix) with ESMTPSA id 81D3EC4338A; Tue, 27 Apr 2021 07:34:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 81D3EC4338A 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=sibis@codeaurora.org From: Sibi Sankar To: p.zabel@pengutronix.de, robh+dt@kernel.org, bjorn.andersson@linaro.org, sboyd@kernel.org Cc: agross@kernel.org, mani@kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sibi Sankar Subject: [PATCH v2 4/5] reset: qcom: Add PDC Global reset signals for WPSS Date: Tue, 27 Apr 2021 13:03:43 +0530 Message-Id: <1619508824-14413-5-git-send-email-sibis@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1619508824-14413-1-git-send-email-sibis@codeaurora.org> References: <1619508824-14413-1-git-send-email-sibis@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add PDC Global reset signals for Wireless Processor Subsystem (WPSS) on SC7280 SoCs. Signed-off-by: Sibi Sankar --- v2: * place resets and num_resets adjacent to each other [Stephen] drivers/reset/reset-qcom-pdc.c | 62 ++++++++++++++++++++++++++++++++++-------- 1 file changed, 51 insertions(+), 11 deletions(-) diff --git a/drivers/reset/reset-qcom-pdc.c b/drivers/reset/reset-qcom-pdc.c index ab74bccd4a5b..c10393f3ef8c 100644 --- a/drivers/reset/reset-qcom-pdc.c +++ b/drivers/reset/reset-qcom-pdc.c @@ -11,18 +11,26 @@ #include -#define RPMH_PDC_SYNC_RESET 0x100 +#define RPMH_SDM845_PDC_SYNC_RESET 0x100 +#define RPMH_SC7280_PDC_SYNC_RESET 0x1000 struct qcom_pdc_reset_map { u8 bit; }; +struct qcom_pdc_reset_desc { + const struct qcom_pdc_reset_map *resets; + size_t num_resets; + unsigned int offset; +}; + struct qcom_pdc_reset_data { struct reset_controller_dev rcdev; struct regmap *regmap; + const struct qcom_pdc_reset_desc *desc; }; -static const struct regmap_config sdm845_pdc_regmap_config = { +static const struct regmap_config pdc_regmap_config = { .name = "pdc-reset", .reg_bits = 32, .reg_stride = 4, @@ -44,6 +52,33 @@ static const struct qcom_pdc_reset_map sdm845_pdc_resets[] = { [PDC_MODEM_SYNC_RESET] = {9}, }; +static const struct qcom_pdc_reset_desc sdm845_pdc_reset_desc = { + .resets = sdm845_pdc_resets, + .offset = RPMH_SDM845_PDC_SYNC_RESET, + .num_resets = ARRAY_SIZE(sdm845_pdc_resets), +}; + +static const struct qcom_pdc_reset_map sc7280_pdc_resets[] = { + [PDC_APPS_SYNC_RESET] = {0}, + [PDC_SP_SYNC_RESET] = {1}, + [PDC_AUDIO_SYNC_RESET] = {2}, + [PDC_SENSORS_SYNC_RESET] = {3}, + [PDC_AOP_SYNC_RESET] = {4}, + [PDC_DEBUG_SYNC_RESET] = {5}, + [PDC_GPU_SYNC_RESET] = {6}, + [PDC_DISPLAY_SYNC_RESET] = {7}, + [PDC_COMPUTE_SYNC_RESET] = {8}, + [PDC_MODEM_SYNC_RESET] = {9}, + [PDC_WLAN_RF_SYNC_RESET] = {10}, + [PDC_WPSS_SYNC_RESET] = {11}, +}; + +static const struct qcom_pdc_reset_desc sc7280_pdc_reset_desc = { + .resets = sc7280_pdc_resets, + .offset = RPMH_SC7280_PDC_SYNC_RESET, + .num_resets = ARRAY_SIZE(sc7280_pdc_resets), +}; + static inline struct qcom_pdc_reset_data *to_qcom_pdc_reset_data( struct reset_controller_dev *rcdev) { @@ -54,19 +89,18 @@ static int qcom_pdc_control_assert(struct reset_controller_dev *rcdev, unsigned long idx) { struct qcom_pdc_reset_data *data = to_qcom_pdc_reset_data(rcdev); + const struct qcom_pdc_reset_map *map = &data->desc->resets[idx]; - return regmap_update_bits(data->regmap, RPMH_PDC_SYNC_RESET, - BIT(sdm845_pdc_resets[idx].bit), - BIT(sdm845_pdc_resets[idx].bit)); + return regmap_update_bits(data->regmap, data->desc->offset, BIT(map->bit), BIT(map->bit)); } static int qcom_pdc_control_deassert(struct reset_controller_dev *rcdev, unsigned long idx) { struct qcom_pdc_reset_data *data = to_qcom_pdc_reset_data(rcdev); + const struct qcom_pdc_reset_map *map = &data->desc->resets[idx]; - return regmap_update_bits(data->regmap, RPMH_PDC_SYNC_RESET, - BIT(sdm845_pdc_resets[idx].bit), 0); + return regmap_update_bits(data->regmap, data->desc->offset, BIT(map->bit), 0); } static const struct reset_control_ops qcom_pdc_reset_ops = { @@ -76,22 +110,27 @@ static const struct reset_control_ops qcom_pdc_reset_ops = { static int qcom_pdc_reset_probe(struct platform_device *pdev) { + const struct qcom_pdc_reset_desc *desc; struct qcom_pdc_reset_data *data; struct device *dev = &pdev->dev; void __iomem *base; struct resource *res; + desc = device_get_match_data(&pdev->dev); + if (!desc) + return -EINVAL; + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; + data->desc = desc; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); base = devm_ioremap_resource(dev, res); if (IS_ERR(base)) return PTR_ERR(base); - data->regmap = devm_regmap_init_mmio(dev, base, - &sdm845_pdc_regmap_config); + data->regmap = devm_regmap_init_mmio(dev, base, &pdc_regmap_config); if (IS_ERR(data->regmap)) { dev_err(dev, "Unable to initialize regmap\n"); return PTR_ERR(data->regmap); @@ -99,14 +138,15 @@ static int qcom_pdc_reset_probe(struct platform_device *pdev) data->rcdev.owner = THIS_MODULE; data->rcdev.ops = &qcom_pdc_reset_ops; - data->rcdev.nr_resets = ARRAY_SIZE(sdm845_pdc_resets); + data->rcdev.nr_resets = desc->num_resets; data->rcdev.of_node = dev->of_node; return devm_reset_controller_register(dev, &data->rcdev); } static const struct of_device_id qcom_pdc_reset_of_match[] = { - { .compatible = "qcom,sdm845-pdc-global" }, + { .compatible = "qcom,sc7280-pdc-global", .data = &sc7280_pdc_reset_desc }, + { .compatible = "qcom,sdm845-pdc-global", .data = &sdm845_pdc_reset_desc }, {} }; MODULE_DEVICE_TABLE(of, qcom_pdc_reset_of_match);