From patchwork Thu Jul 21 01:53:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 12924677 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 45E7CC433EF for ; Thu, 21 Jul 2022 02:10:36 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C09CB1756; Thu, 21 Jul 2022 04:09:43 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C09CB1756 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1658369433; bh=+Tg8MMyAXhntRogrZC66oxlnnzLrm8fTAInQAWUQZwI=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=N9IPnG8OqC1R2JVOSN6zRevT15cI2BFsYiltkgTqcpoZyEW8/mZdRx0C65qT9ZnDp YxifWfybJDElNNUCmBR/y8XQ7uD5vosmWniAKlJd5a2kq2FwpbiOQOCSJ2lQPklFsB pbdNXA3qfTpquLBqcAqM8rrEfqD2LPI8Mq245BcA= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 8C737F80256; Thu, 21 Jul 2022 04:09:42 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id E636DF80256; Thu, 21 Jul 2022 04:09:39 +0200 (CEST) Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 4B87BF80169; Thu, 21 Jul 2022 04:09:29 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 4B87BF80169 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 2DE081A32F4; Thu, 21 Jul 2022 04:09:29 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 021E51A32F6; Thu, 21 Jul 2022 04:09:29 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id B44BF180222A; Thu, 21 Jul 2022 10:09:26 +0800 (+08) From: Shengjiu Wang To: pierre-louis.bossart@linux.intel.com, lgirdwood@gmail.com, peter.ujfalusi@linux.intel.com, yung-chuan.liao@linux.intel.com, ranjani.sridharan@linux.intel.com, kai.vehmanen@linux.intel.com, daniel.baluta@nxp.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, devicetree@vger.kernel.org Subject: [PATCH v2 1/2] dt-bindings: dsp: fsl: Add SOF compatile string for i.MX8ULP Date: Thu, 21 Jul 2022 09:53:43 +0800 Message-Id: <1658368424-28247-1-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Cc: alsa-devel@alsa-project.org, shengjiu.wang@gmail.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, sound-open-firmware@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Add SOF compatile string "fsl,imx8ulp-dsp" for supporting DSP device on i.MX8ULP platform. Signed-off-by: Shengjiu Wang Acked-by: Rob Herring --- changes in v2 - add acked-by Rob Documentation/devicetree/bindings/dsp/fsl,dsp.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml index e66ef2da7879..9af40da5688e 100644 --- a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml +++ b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml @@ -20,6 +20,7 @@ properties: - fsl,imx8qxp-dsp - fsl,imx8qm-dsp - fsl,imx8mp-dsp + - fsl,imx8ulp-dsp - fsl,imx8qxp-hifi4 - fsl,imx8qm-hifi4 - fsl,imx8mp-hifi4 From patchwork Thu Jul 21 01:53:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 12924678 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 02774C43334 for ; Thu, 21 Jul 2022 02:10:53 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 16C9B177E; Thu, 21 Jul 2022 04:10:02 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 16C9B177E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1658369452; bh=VwMJTyuPwk6CN0Y6m66EIqrH1dGKE41zYj6DwqriG+M=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=LLuT0hQy8AtDtj3w9u2vppYv37ingbQgclhgkgo43hOSL9uHWdxwJw/fs/qzPh3vt nl0uqcGq5Kz1CtW9aRkf6Q/y+Prk2k2XdcTaJW+S56niUWHP2F3PeYCFL0qStAMCgR ikbz+vG0KlpliQMrgQ94xp2EfFoKymfW1035pa1U= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 18E5BF80528; Thu, 21 Jul 2022 04:09:43 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 557DBF8016D; Thu, 21 Jul 2022 04:09:40 +0200 (CEST) Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 744A0F800BA; Thu, 21 Jul 2022 04:09:31 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 744A0F800BA Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 2896F2008EB; Thu, 21 Jul 2022 04:09:31 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id BFE92203668; Thu, 21 Jul 2022 04:09:30 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 8AC331800318; Thu, 21 Jul 2022 10:09:28 +0800 (+08) From: Shengjiu Wang To: pierre-louis.bossart@linux.intel.com, lgirdwood@gmail.com, peter.ujfalusi@linux.intel.com, yung-chuan.liao@linux.intel.com, ranjani.sridharan@linux.intel.com, kai.vehmanen@linux.intel.com, daniel.baluta@nxp.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, devicetree@vger.kernel.org Subject: [PATCH v2 2/2] ASoC: SOF: imx: Add i.MX8ULP HW support Date: Thu, 21 Jul 2022 09:53:44 +0800 Message-Id: <1658368424-28247-2-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1658368424-28247-1-git-send-email-shengjiu.wang@nxp.com> References: <1658368424-28247-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Cc: alsa-devel@alsa-project.org, shengjiu.wang@gmail.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, sound-open-firmware@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Zhang Peng This adds skeleton support for the audio DSP hardware found on NXP i.MX8ULP platform. On i.MX8ULP resources (clocks, power, etc) are managed by the System Integration Module in LPAV domain and XRDC which is handled by arm trusted firmware. Signed-off-by: Zhang Peng Signed-off-by: Shengjiu Wang --- changes in v2: - Add arm-smccc.h and use snd_sof_ipc_process_reply() - Address review comments sound/soc/sof/imx/Kconfig | 9 + sound/soc/sof/imx/Makefile | 2 + sound/soc/sof/imx/imx8ulp.c | 514 ++++++++++++++++++++++++++++++++++++ 3 files changed, 525 insertions(+) create mode 100644 sound/soc/sof/imx/imx8ulp.c diff --git a/sound/soc/sof/imx/Kconfig b/sound/soc/sof/imx/Kconfig index cc6e695f913a..4751b04d5e6f 100644 --- a/sound/soc/sof/imx/Kconfig +++ b/sound/soc/sof/imx/Kconfig @@ -41,4 +41,13 @@ config SND_SOC_SOF_IMX8M Say Y if you have such a device. If unsure select "N". +config SND_SOC_SOF_IMX8ULP + tristate "SOF support for i.MX8ULP" + depends on IMX_DSP + select SND_SOC_SOF_IMX_COMMON + help + This adds support for Sound Open Firmware for NXP i.MX8ULP platforms. + Say Y if you have such a device. + If unsure select "N". + endif ## SND_SOC_SOF_IMX_TOPLEVEL diff --git a/sound/soc/sof/imx/Makefile b/sound/soc/sof/imx/Makefile index dba93c3466ec..798b43a415bf 100644 --- a/sound/soc/sof/imx/Makefile +++ b/sound/soc/sof/imx/Makefile @@ -1,9 +1,11 @@ # SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) snd-sof-imx8-objs := imx8.o snd-sof-imx8m-objs := imx8m.o +snd-sof-imx8ulp-objs := imx8ulp.o snd-sof-imx-common-objs := imx-common.o obj-$(CONFIG_SND_SOC_SOF_IMX8) += snd-sof-imx8.o obj-$(CONFIG_SND_SOC_SOF_IMX8M) += snd-sof-imx8m.o +obj-$(CONFIG_SND_SOC_SOF_IMX8ULP) += snd-sof-imx8ulp.o obj-$(CONFIG_SND_SOC_SOF_IMX_COMMON) += imx-common.o diff --git a/sound/soc/sof/imx/imx8ulp.c b/sound/soc/sof/imx/imx8ulp.c new file mode 100644 index 000000000000..02b496165acc --- /dev/null +++ b/sound/soc/sof/imx/imx8ulp.c @@ -0,0 +1,514 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// Copyright 2021-2022 NXP +// +// Author: Peng Zhang +// +// Hardware interface for audio DSP on i.MX8ULP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "../ops.h" +#include "../sof-of-dev.h" +#include "imx-common.h" + +#define FSL_SIP_HIFI_XRDC 0xc200000e + +/* SIM Domain register */ +#define SYSCTRL0 0x8 +#define EXECUTE_BIT BIT(13) +#define RESET_BIT BIT(16) +#define HIFI4_CLK_BIT BIT(17) +#define PB_CLK_BIT BIT(18) +#define PLAT_CLK_BIT BIT(19) +#define DEBUG_LOGIC_BIT BIT(25) + +#define MBOX_OFFSET 0x800000 +#define MBOX_SIZE 0x1000 + +static struct clk_bulk_data imx8ulp_dsp_clks[] = { + { .id = "core" }, + { .id = "ipg" }, + { .id = "ocram" }, + { .id = "mu" }, +}; + +struct imx8ulp_priv { + struct device *dev; + struct snd_sof_dev *sdev; + + /* DSP IPC handler */ + struct imx_dsp_ipc *dsp_ipc; + struct platform_device *ipc_dev; + + struct regmap *regmap; + struct imx_clocks *clks; +}; + +static void imx8ulp_sim_lpav_start(struct imx8ulp_priv *priv) +{ + /* Controls the HiFi4 DSP Reset: 1 in reset, 0 out of reset */ + regmap_update_bits(priv->regmap, SYSCTRL0, RESET_BIT, 0); + + /* Reset HiFi4 DSP Debug logic: 1 debug reset, 0 out of reset*/ + regmap_update_bits(priv->regmap, SYSCTRL0, DEBUG_LOGIC_BIT, 0); + + /* Stall HIFI4 DSP Execution: 1 stall, 0 run */ + regmap_update_bits(priv->regmap, SYSCTRL0, EXECUTE_BIT, 0); +} + +static int imx8ulp_get_mailbox_offset(struct snd_sof_dev *sdev) +{ + return MBOX_OFFSET; +} + +static int imx8ulp_get_window_offset(struct snd_sof_dev *sdev, u32 id) +{ + return MBOX_OFFSET; +} + +static void imx8ulp_dsp_handle_reply(struct imx_dsp_ipc *ipc) +{ + struct imx8ulp_priv *priv = imx_dsp_get_data(ipc); + unsigned long flags; + + spin_lock_irqsave(&priv->sdev->ipc_lock, flags); + + snd_sof_ipc_process_reply(priv->sdev, 0); + + spin_unlock_irqrestore(&priv->sdev->ipc_lock, flags); +} + +static void imx8ulp_dsp_handle_request(struct imx_dsp_ipc *ipc) +{ + struct imx8ulp_priv *priv = imx_dsp_get_data(ipc); + u32 p; /* panic code */ + + /* Read the message from the debug box. */ + sof_mailbox_read(priv->sdev, priv->sdev->debug_box.offset + 4, &p, sizeof(p)); + + /* Check to see if the message is a panic code (0x0dead***) */ + if ((p & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) + snd_sof_dsp_panic(priv->sdev, p, true); + else + snd_sof_ipc_msgs_rx(priv->sdev); +} + +static struct imx_dsp_ops dsp_ops = { + .handle_reply = imx8ulp_dsp_handle_reply, + .handle_request = imx8ulp_dsp_handle_request, +}; + +static int imx8ulp_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) +{ + struct imx8ulp_priv *priv = sdev->pdata->hw_pdata; + + sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, + msg->msg_size); + imx_dsp_ring_doorbell(priv->dsp_ipc, 0); + + return 0; +} + +static int imx8ulp_run(struct snd_sof_dev *sdev) +{ + struct imx8ulp_priv *priv = sdev->pdata->hw_pdata; + + imx8ulp_sim_lpav_start(priv); + + return 0; +} + +static int imx8ulp_reset(struct snd_sof_dev *sdev) +{ + struct imx8ulp_priv *priv = sdev->pdata->hw_pdata; + struct arm_smccc_res smc_resource; + + /* HiFi4 Platform Clock Enable: 1 enabled, 0 disabled */ + regmap_update_bits(priv->regmap, SYSCTRL0, PLAT_CLK_BIT, PLAT_CLK_BIT); + + /* HiFi4 PBCLK clock enable: 1 enabled, 0 disabled */ + regmap_update_bits(priv->regmap, SYSCTRL0, PB_CLK_BIT, PB_CLK_BIT); + + /* HiFi4 Clock Enable: 1 enabled, 0 disabled */ + regmap_update_bits(priv->regmap, SYSCTRL0, HIFI4_CLK_BIT, HIFI4_CLK_BIT); + + regmap_update_bits(priv->regmap, SYSCTRL0, RESET_BIT, RESET_BIT); + usleep_range(1, 2); + + /* Stall HIFI4 DSP Execution: 1 stall, 0 not stall */ + regmap_update_bits(priv->regmap, SYSCTRL0, EXECUTE_BIT, EXECUTE_BIT); + usleep_range(1, 2); + + arm_smccc_smc(FSL_SIP_HIFI_XRDC, 0, 0, 0, 0, 0, 0, 0, &smc_resource); + + return 0; +} + +static int imx8ulp_probe(struct snd_sof_dev *sdev) +{ + struct platform_device *pdev = + container_of(sdev->dev, struct platform_device, dev); + struct device_node *np = pdev->dev.of_node; + struct device_node *res_node; + struct resource *mmio; + struct imx8ulp_priv *priv; + struct resource res; + u32 base, size; + int ret = 0; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->clks = devm_kzalloc(&pdev->dev, sizeof(*priv->clks), GFP_KERNEL); + if (!priv->clks) + return -ENOMEM; + + sdev->num_cores = 1; + sdev->pdata->hw_pdata = priv; + priv->dev = sdev->dev; + priv->sdev = sdev; + + /* System integration module(SIM) control dsp configuration */ + priv->regmap = syscon_regmap_lookup_by_phandle(np, "fsl,dsp-ctrl"); + if (IS_ERR(priv->regmap)) + return PTR_ERR(priv->regmap); + + priv->ipc_dev = platform_device_register_data(sdev->dev, "imx-dsp", + PLATFORM_DEVID_NONE, + pdev, sizeof(*pdev)); + if (IS_ERR(priv->ipc_dev)) + return PTR_ERR(priv->ipc_dev); + + priv->dsp_ipc = dev_get_drvdata(&priv->ipc_dev->dev); + if (!priv->dsp_ipc) { + /* DSP IPC driver not probed yet, try later */ + ret = -EPROBE_DEFER; + dev_err(sdev->dev, "Failed to get drvdata\n"); + goto exit_pdev_unregister; + } + + imx_dsp_set_data(priv->dsp_ipc, priv); + priv->dsp_ipc->ops = &dsp_ops; + + /* DSP base */ + mmio = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (mmio) { + base = mmio->start; + size = resource_size(mmio); + } else { + dev_err(sdev->dev, "error: failed to get DSP base at idx 0\n"); + ret = -EINVAL; + goto exit_pdev_unregister; + } + + sdev->bar[SOF_FW_BLK_TYPE_IRAM] = devm_ioremap(sdev->dev, base, size); + if (!sdev->bar[SOF_FW_BLK_TYPE_IRAM]) { + dev_err(sdev->dev, "failed to ioremap base 0x%x size 0x%x\n", + base, size); + ret = -ENODEV; + goto exit_pdev_unregister; + } + sdev->mmio_bar = SOF_FW_BLK_TYPE_IRAM; + + res_node = of_parse_phandle(np, "memory-reserved", 0); + if (!res_node) { + dev_err(&pdev->dev, "failed to get memory region node\n"); + ret = -ENODEV; + goto exit_pdev_unregister; + } + + ret = of_address_to_resource(res_node, 0, &res); + if (ret) { + dev_err(&pdev->dev, "failed to get reserved region address\n"); + goto exit_pdev_unregister; + } + + sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev, res.start, + resource_size(&res)); + if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) { + dev_err(sdev->dev, "failed to ioremap mem 0x%x size 0x%x\n", + base, size); + ret = -ENOMEM; + goto exit_pdev_unregister; + } + sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM; + + /* set default mailbox offset for FW ready message */ + sdev->dsp_box.offset = MBOX_OFFSET; + + ret = of_reserved_mem_device_init(sdev->dev); + if (ret) { + dev_err(&pdev->dev, "failed to init reserved memory region %d\n", ret); + goto exit_pdev_unregister; + } + + priv->clks->dsp_clks = imx8ulp_dsp_clks; + priv->clks->num_dsp_clks = ARRAY_SIZE(imx8ulp_dsp_clks); + + ret = imx8_parse_clocks(sdev, priv->clks); + if (ret < 0) + goto exit_pdev_unregister; + + ret = imx8_enable_clocks(sdev, priv->clks); + if (ret < 0) + goto exit_pdev_unregister; + + return 0; + +exit_pdev_unregister: + platform_device_unregister(priv->ipc_dev); + + return ret; +} + +static int imx8ulp_remove(struct snd_sof_dev *sdev) +{ + struct imx8ulp_priv *priv = sdev->pdata->hw_pdata; + + imx8_disable_clocks(sdev, priv->clks); + platform_device_unregister(priv->ipc_dev); + + return 0; +} + +/* on i.MX8 there is 1 to 1 match between type and BAR idx */ +static int imx8ulp_get_bar_index(struct snd_sof_dev *sdev, u32 type) +{ + return type; +} + +static int imx8ulp_suspend(struct snd_sof_dev *sdev) +{ + int i; + struct imx8ulp_priv *priv = (struct imx8ulp_priv *)sdev->pdata->hw_pdata; + + /*Stall DSP, release in .run() */ + regmap_update_bits(priv->regmap, SYSCTRL0, EXECUTE_BIT, EXECUTE_BIT); + + for (i = 0; i < DSP_MU_CHAN_NUM; i++) + imx_dsp_free_channel(priv->dsp_ipc, i); + + imx8_disable_clocks(sdev, priv->clks); + + return 0; +} + +static int imx8ulp_resume(struct snd_sof_dev *sdev) +{ + struct imx8ulp_priv *priv = (struct imx8ulp_priv *)sdev->pdata->hw_pdata; + int i; + + imx8_enable_clocks(sdev, priv->clks); + + for (i = 0; i < DSP_MU_CHAN_NUM; i++) + imx_dsp_request_channel(priv->dsp_ipc, i); + + return 0; +} + +static int imx8ulp_dsp_runtime_resume(struct snd_sof_dev *sdev) +{ + const struct sof_dsp_power_state target_dsp_state = { + .state = SOF_DSP_PM_D0, + .substate = 0, + }; + + imx8ulp_resume(sdev); + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + +static int imx8ulp_dsp_runtime_suspend(struct snd_sof_dev *sdev) +{ + const struct sof_dsp_power_state target_dsp_state = { + .state = SOF_DSP_PM_D3, + .substate = 0, + }; + + imx8ulp_suspend(sdev); + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + +static int imx8ulp_dsp_suspend(struct snd_sof_dev *sdev, unsigned int target_state) +{ + const struct sof_dsp_power_state target_dsp_state = { + .state = target_state, + .substate = 0, + }; + + if (!pm_runtime_suspended(sdev->dev)) + imx8ulp_suspend(sdev); + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + +static int imx8ulp_dsp_resume(struct snd_sof_dev *sdev) +{ + const struct sof_dsp_power_state target_dsp_state = { + .state = SOF_DSP_PM_D0, + .substate = 0, + }; + + imx8ulp_resume(sdev); + + if (pm_runtime_suspended(sdev->dev)) { + pm_runtime_disable(sdev->dev); + pm_runtime_set_active(sdev->dev); + pm_runtime_mark_last_busy(sdev->dev); + pm_runtime_enable(sdev->dev); + pm_runtime_idle(sdev->dev); + } + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + +static struct snd_soc_dai_driver imx8ulp_dai[] = { + { + .name = "sai5", + .playback = { + .channels_min = 1, + .channels_max = 32, + }, + .capture = { + .channels_min = 1, + .channels_max = 32, + }, + }, + { + .name = "sai6", + .playback = { + .channels_min = 1, + .channels_max = 32, + }, + .capture = { + .channels_min = 1, + .channels_max = 32, + }, + }, +}; + +static int imx8ulp_dsp_set_power_state(struct snd_sof_dev *sdev, + const struct sof_dsp_power_state *target_state) +{ + sdev->dsp_power_state = *target_state; + + return 0; +} + +/* i.MX8 ops */ +struct snd_sof_dsp_ops sof_imx8ulp_ops = { + /* probe and remove */ + .probe = imx8ulp_probe, + .remove = imx8ulp_remove, + /* DSP core boot */ + .run = imx8ulp_run, + .reset = imx8ulp_reset, + + /* Block IO */ + .block_read = sof_block_read, + .block_write = sof_block_write, + + /* Module IO */ + .read64 = sof_io_read64, + + /* Mailbox IO */ + .mailbox_read = sof_mailbox_read, + .mailbox_write = sof_mailbox_write, + + /* ipc */ + .send_msg = imx8ulp_send_msg, + .get_mailbox_offset = imx8ulp_get_mailbox_offset, + .get_window_offset = imx8ulp_get_window_offset, + + .ipc_msg_data = sof_ipc_msg_data, + .set_stream_data_offset = sof_set_stream_data_offset, + + /* stream callbacks */ + .pcm_open = sof_stream_pcm_open, + .pcm_close = sof_stream_pcm_close, + + /* module loading */ + .get_bar_index = imx8ulp_get_bar_index, + /* firmware loading */ + .load_firmware = snd_sof_load_firmware_memcpy, + + /* Debug information */ + .dbg_dump = imx8_dump, + + /* Firmware ops */ + .dsp_arch_ops = &sof_xtensa_arch_ops, + + /* DAI drivers */ + .drv = imx8ulp_dai, + .num_drv = ARRAY_SIZE(imx8ulp_dai), + + /* ALSA HW info flags */ + .hw_info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, + + /* PM */ + .runtime_suspend = imx8ulp_dsp_runtime_suspend, + .runtime_resume = imx8ulp_dsp_runtime_resume, + + .suspend = imx8ulp_dsp_suspend, + .resume = imx8ulp_dsp_resume, + + .set_power_state = imx8ulp_dsp_set_power_state, +}; + +static struct sof_dev_desc sof_of_imx8ulp_desc = { + .ipc_supported_mask = BIT(SOF_IPC), + .ipc_default = SOF_IPC, + .default_fw_path = { + [SOF_IPC] = "imx/sof", + }, + .default_tplg_path = { + [SOF_IPC] = "imx/sof-tplg", + }, + .default_fw_filename = { + [SOF_IPC] = "sof-imx8ulp.ri", + }, + .nocodec_tplg_filename = "sof-imx8ulp-nocodec.tplg", + .ops = &sof_imx8ulp_ops, +}; + +static const struct of_device_id sof_of_imx8ulp_ids[] = { + { .compatible = "fsl,imx8ulp-dsp", .data = &sof_of_imx8ulp_desc}, + { } +}; +MODULE_DEVICE_TABLE(of, sof_of_imx8ulp_ids); + +/* DT driver definition */ +static struct platform_driver snd_sof_of_imx8ulp_driver = { + .probe = sof_of_probe, + .remove = sof_of_remove, + .driver = { + .name = "sof-audio-of-imx8ulp", + .pm = &sof_of_pm, + .of_match_table = sof_of_imx8ulp_ids, + }, +}; +module_platform_driver(snd_sof_of_imx8ulp_driver); + +MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA); +MODULE_LICENSE("Dual BSD/GPL");