From patchwork Wed Mar 27 08:18:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Varadarajan Narayanan X-Patchwork-Id: 13605876 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AA2D836136; Wed, 27 Mar 2024 08:20:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711527628; cv=none; b=E9v0Y4HKaroRuDqJWW2KNasKVrRZYpienegpRq6NDCeJkcSi+Q2J/LUlCExshw85kMjnaDJ1b4Pfjb44UTbYPQ+jFkTsckjzUMlGbEHcuU0hIpcmAmjNqbe7xxfD2QWjfJAgXbYunCaB7apSzUx8KNRQeEJQiUJAvoUDLZ5QqAc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711527628; c=relaxed/simple; bh=yHL6mPRtospIZ4OTP4HD9ELzOkZm6uD6x4Nt6M3zpw8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=UDsAUwCuxqTUzrhIcIEToT2wq/NjEqx6AqKbIBmKRoViV59i6IZwHzLvLt/AeUhV/5AY5I8BddUPhBdp8bDLLcmL8Gccp8w+cfvCu3z4gYVTP1m3B4I7fhDb0A6RnRGOELSAq5YlKf8dNU+s0HZDDHhxQl8uxMD/lTnRRH2PNnc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=PiG4DIoi; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="PiG4DIoi" Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 42R7WTo3001413; Wed, 27 Mar 2024 08:20:21 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= qcppdkim1; bh=iwtRhpO8wrgW9qHdWqjDdEfNp1t9VQXkDDdJdJHLTdA=; b=Pi G4DIoi+p7fm60hcnheoY6FVcthteIS2PGajACSVqtyiaDlc9yMNVpYQVbXMRE9Dj fM006os4Wv/K7yN+xYYJvWQ5urj388FFJpucGaOdgXVab8NMgMos0tDeFer02L9B 9i71iIXr5TAsBDrtEFjz6e9dIZI3HHaqlXTk0HNxYzgusOX4gXtjpJr3gLDXomCQ b0MCSNGiWsmlSVstdesz702RyPzHhleZ9E1NTM+jP6A4oquqS/RuXcfDfcNdyb2C lslZ9MSRqVBa3rPqNs8GxjFGNdIc2NSgnir0VavNlEabaYlVdFqk3K7J5jDwIb97 3YGY0mMZSrISnLkCVemg== Received: from nasanppmta04.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3x4782s2w7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 27 Mar 2024 08:20:21 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 42R8KKTm024795 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 27 Mar 2024 08:20:20 GMT Received: from hu-varada-blr.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 27 Mar 2024 01:20:15 -0700 From: Varadarajan Narayanan To: , , , , , , , , , , , , , CC: Varadarajan Narayanan Subject: [PATCH v4 2/3] clk: qcom: add IPQ9574 interconnect clocks support Date: Wed, 27 Mar 2024 13:48:49 +0530 Message-ID: <20240327081850.2924870-3-quic_varada@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240327081850.2924870-1-quic_varada@quicinc.com> References: <20240327081850.2924870-1-quic_varada@quicinc.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 4dd8jql2SBsWlLKk4UI8pc-di5q7XlvS X-Proofpoint-ORIG-GUID: 4dd8jql2SBsWlLKk4UI8pc-di5q7XlvS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-27_05,2024-03-21_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 clxscore=1015 bulkscore=0 spamscore=0 malwarescore=0 mlxlogscore=999 adultscore=0 suspectscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2403210001 definitions=main-2403270056 Unlike MSM platforms that manage NoC related clocks and scaling from RPM, IPQ SoCs dont involve RPM in managing NoC related clocks and there is no NoC scaling. However, there is a requirement to enable some NoC interface clocks for accessing the peripheral controllers present on these NoCs. Though exposing these as normal clocks would work, having a minimalistic interconnect driver to handle these clocks would make it consistent with other Qualcomm platforms resulting in common code paths. This is similar to msm8996-cbf's usage of icc-clk framework. Signed-off-by: Varadarajan Narayanan --- v4: Use clk_hw instead of indices Do icc register in qcom_cc_probe() call stream Add icc clock info to qcom_cc_desc structure v3: Use indexed identifiers here to avoid confusion Fix error messages and move to common.c v2: Move DTS to separate patch Update commit log Auto select CONFIG_INTERCONNECT & CONFIG_INTERCONNECT_CLK to fix build error --- drivers/clk/qcom/Kconfig | 2 ++ drivers/clk/qcom/common.c | 34 ++++++++++++++++++++- drivers/clk/qcom/common.h | 4 ++- drivers/clk/qcom/gcc-ipq9574.c | 54 ++++++++++++++++++++++++++++++++++ 4 files changed, 92 insertions(+), 2 deletions(-) diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index 8ab08e7b5b6c..af73a0b396eb 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -243,6 +243,8 @@ config IPQ_GCC_8074 config IPQ_GCC_9574 tristate "IPQ9574 Global Clock Controller" + select INTERCONNECT + select INTERCONNECT_CLK help Support for global clock controller on ipq9574 devices. Say Y if you want to use peripheral devices such as UART, SPI, diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c index 75f09e6e057e..523d30d0ccbc 100644 --- a/drivers/clk/qcom/common.c +++ b/drivers/clk/qcom/common.c @@ -8,6 +8,8 @@ #include #include #include +#include +#include #include #include @@ -234,6 +236,36 @@ static struct clk_hw *qcom_cc_clk_hw_get(struct of_phandle_args *clkspec, return cc->rclks[idx] ? &cc->rclks[idx]->hw : NULL; } +static int qcom_cc_icc_register(struct device *dev, + const struct qcom_cc_desc *desc) +{ +#if IS_ENABLED(CONFIG_INTERCONNECT_CLK) + struct icc_provider *provider; + struct icc_clk_data *icd; + int i; + + if (!desc->icc_hws) + return 0; + + icd = devm_kcalloc(dev, desc->num_icc_hws, sizeof(*icd), GFP_KERNEL); + if (!icd) + return dev_err_probe(dev, -ENOMEM, "malloc for icc clock data failed\n"); + + for (i = 0; i < desc->num_icc_hws; i++) { + icd[i].clk = devm_clk_hw_get_clk(dev, desc->icc_hws[i], ""); + if (IS_ERR_OR_NULL(icd[i].clk)) + return dev_err_probe(dev, -ENOENT, "icc clock not found\n"); + icd[i].name = clk_hw_get_name(desc->icc_hws[i]); + } + + provider = icc_clk_register(dev, desc->first_id, desc->num_icc_hws, icd); + if (IS_ERR_OR_NULL(provider)) + return dev_err_probe(dev, PTR_ERR(provider), + "icc_clk_register failed\n"); +#endif + return 0; +} + int qcom_cc_really_probe(struct platform_device *pdev, const struct qcom_cc_desc *desc, struct regmap *regmap) { @@ -303,7 +335,7 @@ int qcom_cc_really_probe(struct platform_device *pdev, if (ret) return ret; - return 0; + return qcom_cc_icc_register(dev, desc); } EXPORT_SYMBOL_GPL(qcom_cc_really_probe); diff --git a/drivers/clk/qcom/common.h b/drivers/clk/qcom/common.h index 9c8f7b798d9f..3c3a07f6dcb9 100644 --- a/drivers/clk/qcom/common.h +++ b/drivers/clk/qcom/common.h @@ -29,6 +29,9 @@ struct qcom_cc_desc { size_t num_gdscs; struct clk_hw **clk_hws; size_t num_clk_hws; + struct clk_hw **icc_hws; + size_t num_icc_hws; + unsigned int first_id; }; /** @@ -65,5 +68,4 @@ extern int qcom_cc_probe(struct platform_device *pdev, const struct qcom_cc_desc *desc); extern int qcom_cc_probe_by_index(struct platform_device *pdev, int index, const struct qcom_cc_desc *desc); - #endif diff --git a/drivers/clk/qcom/gcc-ipq9574.c b/drivers/clk/qcom/gcc-ipq9574.c index 0a3f846695b8..187fd9dcdf49 100644 --- a/drivers/clk/qcom/gcc-ipq9574.c +++ b/drivers/clk/qcom/gcc-ipq9574.c @@ -12,6 +12,7 @@ #include #include +#include #include "clk-alpha-pll.h" #include "clk-branch.h" @@ -4301,6 +4302,56 @@ static const struct qcom_reset_map gcc_ipq9574_resets[] = { [GCC_WCSS_Q6_TBU_BCR] = { 0x12054, 0 }, }; +#define IPQ_APPS_ID 9574 /* some unique value */ + +enum { + ICC_ANOC_PCIE0, + ICC_SNOC_PCIE0, + ICC_ANOC_PCIE1, + ICC_SNOC_PCIE1, + ICC_ANOC_PCIE2, + ICC_SNOC_PCIE2, + ICC_ANOC_PCIE3, + ICC_SNOC_PCIE3, + ICC_SNOC_USB, + ICC_ANOC_USB_AXI, + ICC_NSSNOC_NSSCC, + ICC_NSSNOC_SNOC_0, + ICC_NSSNOC_SNOC_1, + ICC_NSSNOC_PCNOC_1, + ICC_NSSNOC_QOSGEN_REF, + ICC_NSSNOC_TIMEOUT_REF, + ICC_NSSNOC_XO_DCD, + ICC_NSSNOC_ATB, + ICC_MEM_NOC_NSSNOC, + ICC_NSSNOC_MEMNOC, + ICC_NSSNOC_MEM_NOC_1, +}; + +static struct clk_hw *icc_ipq9574_hws[] = { + [ICC_ANOC_PCIE0] = &gcc_anoc_pcie0_1lane_m_clk.clkr.hw, + [ICC_SNOC_PCIE0] = &gcc_anoc_pcie1_1lane_m_clk.clkr.hw, + [ICC_ANOC_PCIE1] = &gcc_anoc_pcie2_2lane_m_clk.clkr.hw, + [ICC_SNOC_PCIE1] = &gcc_anoc_pcie3_2lane_m_clk.clkr.hw, + [ICC_ANOC_PCIE2] = &gcc_snoc_pcie0_1lane_s_clk.clkr.hw, + [ICC_SNOC_PCIE2] = &gcc_snoc_pcie1_1lane_s_clk.clkr.hw, + [ICC_ANOC_PCIE3] = &gcc_snoc_pcie2_2lane_s_clk.clkr.hw, + [ICC_SNOC_PCIE3] = &gcc_snoc_pcie3_2lane_s_clk.clkr.hw, + [ICC_SNOC_USB] = &gcc_snoc_usb_clk.clkr.hw, + [ICC_ANOC_USB_AXI] = &gcc_anoc_usb_axi_clk.clkr.hw, + [ICC_NSSNOC_NSSCC] = &gcc_nssnoc_nsscc_clk.clkr.hw, + [ICC_NSSNOC_SNOC_0] = &gcc_nssnoc_snoc_clk.clkr.hw, + [ICC_NSSNOC_SNOC_1] = &gcc_nssnoc_snoc_1_clk.clkr.hw, + [ICC_NSSNOC_PCNOC_1] = &gcc_nssnoc_pcnoc_1_clk.clkr.hw, + [ICC_NSSNOC_QOSGEN_REF] = &gcc_nssnoc_qosgen_ref_clk.clkr.hw, + [ICC_NSSNOC_TIMEOUT_REF] = &gcc_nssnoc_timeout_ref_clk.clkr.hw, + [ICC_NSSNOC_XO_DCD] = &gcc_nssnoc_xo_dcd_clk.clkr.hw, + [ICC_NSSNOC_ATB] = &gcc_nssnoc_atb_clk.clkr.hw, + [ICC_MEM_NOC_NSSNOC] = &gcc_mem_noc_nssnoc_clk.clkr.hw, + [ICC_NSSNOC_MEMNOC] = &gcc_nssnoc_memnoc_clk.clkr.hw, + [ICC_NSSNOC_MEM_NOC_1] = &gcc_nssnoc_mem_noc_1_clk.clkr.hw, +}; + static const struct of_device_id gcc_ipq9574_match_table[] = { { .compatible = "qcom,ipq9574-gcc" }, { } @@ -4323,6 +4374,9 @@ static const struct qcom_cc_desc gcc_ipq9574_desc = { .num_resets = ARRAY_SIZE(gcc_ipq9574_resets), .clk_hws = gcc_ipq9574_hws, .num_clk_hws = ARRAY_SIZE(gcc_ipq9574_hws), + .icc_hws = icc_ipq9574_hws, + .num_icc_hws = ARRAY_SIZE(icc_ipq9574_hws), + .first_id = IPQ_APPS_ID, }; static int gcc_ipq9574_probe(struct platform_device *pdev)