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Mon, 12 Jun 2023 04:55:27 -0500 From: Vijendar Mukunda To: CC: , , , , , , , Vijendar Mukunda , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , open list Subject: [PATCH V4 6/9] ASoC: amd: ps: add pm ops support for SoundWire dma driver Date: Mon, 12 Jun 2023 15:29:00 +0530 Message-ID: <20230612095903.2113464-7-Vijendar.Mukunda@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230612095903.2113464-1-Vijendar.Mukunda@amd.com> References: <20230612095903.2113464-1-Vijendar.Mukunda@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D7:EE_|SN7PR12MB7298:EE_ X-MS-Office365-Filtering-Correlation-Id: efd42ab4-3574-4c52-ff2c-08db6b2b28f0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(346002)(39860400002)(376002)(396003)(136003)(451199021)(40470700004)(36840700001)(46966006)(41300700001)(6666004)(40480700001)(8936002)(36756003)(8676002)(6916009)(5660300002)(54906003)(70206006)(70586007)(316002)(4326008)(40460700003)(478600001)(2906002)(7696005)(83380400001)(426003)(26005)(36860700001)(82310400005)(1076003)(186003)(82740400003)(2616005)(356005)(81166007)(47076005)(336012)(86362001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2023 09:55:31.6768 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: efd42ab4-3574-4c52-ff2c-08db6b2b28f0 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9D7.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7298 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support pm ops support for SoundWire dma driver. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/ps/ps-sdw-dma.c | 98 ++++++++++++++++++++++++++++++++++- 1 file changed, 96 insertions(+), 2 deletions(-) diff --git a/sound/soc/amd/ps/ps-sdw-dma.c b/sound/soc/amd/ps/ps-sdw-dma.c index 1de78948f859..ade130a8062a 100644 --- a/sound/soc/amd/ps/ps-sdw-dma.c +++ b/sound/soc/amd/ps/ps-sdw-dma.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include "acp63.h" @@ -102,6 +103,29 @@ static const struct snd_pcm_hardware acp63_sdw_hardware_capture = { .periods_max = SDW_CAPTURE_MAX_NUM_PERIODS, }; +static void acp63_enable_disable_sdw_dma_interrupts(void __iomem *acp_base, bool enable) +{ + u32 ext_intr_cntl, ext_intr_cntl1; + u32 irq_mask = ACP_SDW_DMA_IRQ_MASK; + u32 irq_mask1 = ACP_P1_SDW_DMA_IRQ_MASK; + + if (enable) { + ext_intr_cntl = readl(acp_base + ACP_EXTERNAL_INTR_CNTL); + ext_intr_cntl |= irq_mask; + writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL); + ext_intr_cntl1 = readl(acp_base + ACP_EXTERNAL_INTR_CNTL1); + ext_intr_cntl1 |= irq_mask1; + writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1); + } else { + ext_intr_cntl = readl(acp_base + ACP_EXTERNAL_INTR_CNTL); + ext_intr_cntl &= ~irq_mask; + writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL); + ext_intr_cntl1 = readl(acp_base + ACP_EXTERNAL_INTR_CNTL1); + ext_intr_cntl1 &= ~irq_mask1; + writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1); + } +} + static void acp63_config_dma(struct acp_sdw_dma_stream *stream, void __iomem *acp_base, u32 stream_id) { @@ -440,16 +464,86 @@ static int acp63_sdw_platform_probe(struct platform_device *pdev) status = devm_snd_soc_register_component(&pdev->dev, &acp63_sdw_component, NULL, 0); - if (status) + if (status) { dev_err(&pdev->dev, "Fail to register sdw dma component\n"); + return status; + } + pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + return 0; +} - return status; +static int acp63_sdw_platform_remove(struct platform_device *pdev) +{ + pm_runtime_disable(&pdev->dev); + return 0; } +static int acp_restore_sdw_dma_config(struct sdw_dma_dev_data *sdw_data) +{ + struct acp_sdw_dma_stream *stream; + struct snd_pcm_substream *substream; + struct snd_pcm_runtime *runtime; + u32 period_bytes, buf_size, water_mark_size_reg; + u32 stream_count; + int index, instance, ret; + + for (instance = 0; instance < AMD_SDW_MAX_MANAGERS; instance++) { + if (instance == ACP_SDW0) + stream_count = ACP63_SDW0_DMA_MAX_STREAMS; + else + stream_count = ACP63_SDW1_DMA_MAX_STREAMS; + + for (index = 0; index < stream_count; index++) { + if (instance == ACP_SDW0) { + substream = sdw_data->sdw0_dma_stream[index]; + water_mark_size_reg = + sdw0_dma_ring_buf_reg[index].water_mark_size_reg; + } else { + substream = sdw_data->sdw1_dma_stream[index]; + water_mark_size_reg = + sdw1_dma_ring_buf_reg[index].water_mark_size_reg; + } + + if (substream && substream->runtime) { + runtime = substream->runtime; + stream = runtime->private_data; + period_bytes = frames_to_bytes(runtime, runtime->period_size); + buf_size = frames_to_bytes(runtime, runtime->buffer_size); + acp63_config_dma(stream, sdw_data->acp_base, index); + ret = acp63_configure_sdw_ringbuffer(sdw_data->acp_base, index, + buf_size, instance); + if (ret) + return ret; + writel(period_bytes, sdw_data->acp_base + water_mark_size_reg); + } + } + } + acp63_enable_disable_sdw_dma_interrupts(sdw_data->acp_base, true); + return 0; +} + +static int __maybe_unused acp63_sdw_pcm_resume(struct device *dev) +{ + struct sdw_dma_dev_data *sdw_data; + + sdw_data = dev_get_drvdata(dev); + return acp_restore_sdw_dma_config(sdw_data); +} + +static const struct dev_pm_ops acp63_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(NULL, acp63_sdw_pcm_resume) +}; + static struct platform_driver acp63_sdw_dma_driver = { .probe = acp63_sdw_platform_probe, + .remove = acp63_sdw_platform_remove, .driver = { .name = "amd_ps_sdw_dma", + .pm = &acp63_pm_ops, }, }; -- 2.34.1