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Wed, 18 Dec 2024 23:51:32 -0600 From: Vijendar Mukunda To: CC: , , , , , , , , , , Vijendar Mukunda Subject: [PATCH 14/21] ASoC: amd: acp70: add pm ops support for soundwire dma driver Date: Thu, 19 Dec 2024 11:18:50 +0530 Message-ID: <20241219054857.2070420-15-Vijendar.Mukunda@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241219054857.2070420-1-Vijendar.Mukunda@amd.com> References: <20241219054857.2070420-1-Vijendar.Mukunda@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD7F:EE_|DS0PR12MB7703:EE_ X-MS-Office365-Filtering-Correlation-Id: 39632c70-b82a-4cab-e7a6-08dd1ff1335f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|1800799024|36860700013|376014|82310400026; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Add pm ops support for SoundWire dma driver for ACP7.0 and ACP7.1 platforms. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/acp70/acp70-sdw-dma.c | 92 +++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) diff --git a/sound/soc/amd/acp70/acp70-sdw-dma.c b/sound/soc/amd/acp70/acp70-sdw-dma.c index 2c01f60cf3b9..183db176725f 100644 --- a/sound/soc/amd/acp70/acp70-sdw-dma.c +++ b/sound/soc/amd/acp70/acp70-sdw-dma.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include "acp70.h" @@ -128,6 +129,29 @@ static const struct snd_pcm_hardware acp70_sdw_hardware_capture = { .periods_max = SDW_CAPTURE_MAX_NUM_PERIODS, }; +static void acp70_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 acp70_config_dma(struct acp_sdw_dma_stream *stream, void __iomem *acp_base, u32 stream_id) { @@ -476,13 +500,81 @@ static int acp70_sdw_platform_probe(struct platform_device *pdev) 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; } +static void acp70_sdw_platform_remove(struct platform_device *pdev) +{ + pm_runtime_disable(&pdev->dev); +} + +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 = ACP70_SDW0_DMA_MAX_STREAMS; + else + stream_count = ACP70_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); + acp70_config_dma(stream, sdw_data->acp_base, index); + ret = acp70_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); + } + } + } + acp70_enable_disable_sdw_dma_interrupts(sdw_data->acp_base, true); + return 0; +} + +static int __maybe_unused acp70_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 acp70_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(NULL, acp70_sdw_pcm_resume) +}; + static struct platform_driver acp70_sdw_dma_driver = { .probe = acp70_sdw_platform_probe, + .remove = acp70_sdw_platform_remove, .driver = { .name = "amd_acp70_sdw_dma", + .pm = &acp70_pm_ops, }, };