[RFC PATCH v3 4/9] ASoC: fsl_asrc: register m2m platform device
From: Shengjiu Wang <hidden>
Date: 2023-09-14 06:30:54
Also in:
alsa-devel, linux-media, lkml
Subsystem:
freescale soc sound drivers, sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Shengjiu Wang, Xiubo Li, Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
Register m2m platform device, that user can use M2M feature. Defined platform data structure and platform driver name. Signed-off-by: Shengjiu Wang <redacted> --- include/sound/fsl_asrc_common.h | 12 ++++++++++++ sound/soc/fsl/fsl_asrc.c | 12 ++++++++++++ 2 files changed, 24 insertions(+)
diff --git a/include/sound/fsl_asrc_common.h b/include/sound/fsl_asrc_common.h
index 7f7e725075fe..e978a2f9cd24 100644
--- a/include/sound/fsl_asrc_common.h
+++ b/include/sound/fsl_asrc_common.h@@ -69,6 +69,7 @@ struct fsl_asrc_pair { * @dma_params_rx: DMA parameters for receive channel * @dma_params_tx: DMA parameters for transmit channel * @pdev: platform device pointer + * @m2m_pdev: m2m platform device pointer * @regmap: regmap handler * @paddr: physical address to the base address of registers * @mem_clk: clock source to access register
@@ -104,6 +105,7 @@ struct fsl_asrc { struct snd_dmaengine_dai_dma_data dma_params_rx; struct snd_dmaengine_dai_dma_data dma_params_tx; struct platform_device *pdev; + struct platform_device *m2m_pdev; struct regmap *regmap; unsigned long paddr; struct clk *mem_clk;
@@ -144,6 +146,16 @@ struct fsl_asrc { void *private; }; +/** + * struct fsl_asrc_m2m_pdata - platform data + * @asrc: pointer to struct fsl_asrc + * + */ +struct fsl_asrc_m2m_pdata { + struct fsl_asrc *asrc; +}; + +#define M2M_DRV_NAME "fsl_asrc_m2m" #define DRV_NAME "fsl-asrc-dai" extern struct snd_soc_component_driver fsl_asrc_component;
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index f9d830e0957f..7b72d6bcf281 100644
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c@@ -1208,6 +1208,7 @@ static int fsl_asrc_runtime_suspend(struct device *dev); static int fsl_asrc_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; + struct fsl_asrc_m2m_pdata m2m_pdata; struct fsl_asrc_priv *asrc_priv; struct fsl_asrc *asrc; struct resource *res;
@@ -1392,6 +1393,12 @@ static int fsl_asrc_probe(struct platform_device *pdev) goto err_pm_get_sync; } + m2m_pdata.asrc = asrc; + asrc->m2m_pdev = platform_device_register_data(&pdev->dev, + M2M_DRV_NAME, + PLATFORM_DEVID_AUTO, + &m2m_pdata, + sizeof(m2m_pdata)); return 0; err_pm_get_sync:
@@ -1404,6 +1411,11 @@ static int fsl_asrc_probe(struct platform_device *pdev) static void fsl_asrc_remove(struct platform_device *pdev) { + struct fsl_asrc *asrc = dev_get_drvdata(&pdev->dev); + + if (asrc->m2m_pdev && !IS_ERR(asrc->m2m_pdev)) + platform_device_unregister(asrc->m2m_pdev); + pm_runtime_disable(&pdev->dev); if (!pm_runtime_status_suspended(&pdev->dev)) fsl_asrc_runtime_suspend(&pdev->dev);
--
2.34.1