diff options
Diffstat (limited to 'sound/soc/fsl/p1022_rdk.c')
| -rw-r--r-- | sound/soc/fsl/p1022_rdk.c | 114 |
1 files changed, 73 insertions, 41 deletions
diff --git a/sound/soc/fsl/p1022_rdk.c b/sound/soc/fsl/p1022_rdk.c index 4afbdd610bfa..d4568346714f 100644 --- a/sound/soc/fsl/p1022_rdk.c +++ b/sound/soc/fsl/p1022_rdk.c @@ -1,27 +1,23 @@ -/** - * Freescale P1022RDK ALSA SoC Machine driver - * - * Author: Timur Tabi <timur@freescale.com> - * - * Copyright 2012 Freescale Semiconductor, Inc. - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - * - * Note: in order for audio to work correctly, the output controls need - * to be enabled, because they control the clock. So for playback, for - * example: - * - * amixer sset 'Left Output Mixer PCM' on - * amixer sset 'Right Output Mixer PCM' on - */ +// SPDX-License-Identifier: GPL-2.0 +// +// Freescale P1022RDK ALSA SoC Machine driver +// +// Author: Timur Tabi <timur@freescale.com> +// +// Copyright 2012 Freescale Semiconductor, Inc. +// +// Note: in order for audio to work correctly, the output controls need +// to be enabled, because they control the clock. So for playback, for +// example: +// +// amixer sset 'Left Output Mixer PCM' on +// amixer sset 'Right Output Mixer PCM' on #include <linux/module.h> #include <linux/fsl/guts.h> #include <linux/interrupt.h> +#include <linux/of.h> #include <linux/of_address.h> -#include <linux/of_device.h> #include <linux/slab.h> #include <sound/soc.h> @@ -65,7 +61,7 @@ static inline void guts_set_dmuxcr(struct ccsr_guts __iomem *guts, /* There's only one global utilities register */ static phys_addr_t guts_phys; -/** +/* * machine_data: machine-specific ASoC device data * * This structure contains data for a single sound platform device on an @@ -84,11 +80,14 @@ struct machine_data { }; /** - * p1022_rdk_machine_probe: initialize the board + * p1022_rdk_machine_probe - initialize the board + * @card: ASoC card instance * * This function is used to initialize the board-specific hardware. * * Here we program the DMACR and PMUXCR registers. + * + * Returns: %0 on success or negative errno value on error */ static int p1022_rdk_machine_probe(struct snd_soc_card *card) { @@ -123,29 +122,32 @@ static int p1022_rdk_machine_probe(struct snd_soc_card *card) } /** - * p1022_rdk_startup: program the board with various hardware parameters + * p1022_rdk_startup - program the board with various hardware parameters + * @substream: ASoC substream object * * This function takes board-specific information, like clock frequencies * and serial data formats, and passes that information to the codec and * transport drivers. + * + * Returns: %0 on success or negative errno value on error */ static int p1022_rdk_startup(struct snd_pcm_substream *substream) { - struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct machine_data *mdata = container_of(rtd->card, struct machine_data, card); struct device *dev = rtd->card->dev; int ret = 0; /* Tell the codec driver what the serial protocol is. */ - ret = snd_soc_dai_set_fmt(rtd->codec_dai, mdata->dai_format); + ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_codec(rtd, 0), mdata->dai_format); if (ret < 0) { dev_err(dev, "could not set codec driver audio format (ret=%i)\n", ret); return ret; } - ret = snd_soc_dai_set_pll(rtd->codec_dai, 0, 0, mdata->clk_frequency, + ret = snd_soc_dai_set_pll(snd_soc_rtd_to_codec(rtd, 0), 0, 0, mdata->clk_frequency, mdata->clk_frequency); if (ret < 0) { dev_err(dev, "could not set codec PLL frequency (ret=%i)\n", @@ -157,10 +159,13 @@ static int p1022_rdk_startup(struct snd_pcm_substream *substream) } /** - * p1022_rdk_machine_remove: Remove the sound device + * p1022_rdk_machine_remove - Remove the sound device + * @card: ASoC card instance * * This function is called to remove the sound device for one SSI. We * de-program the DMACR and PMUXCR register. + * + * Returns: %0 on success or negative errno value on error */ static int p1022_rdk_machine_remove(struct snd_soc_card *card) { @@ -185,7 +190,7 @@ static int p1022_rdk_machine_remove(struct snd_soc_card *card) return 0; } -/** +/* * p1022_rdk_ops: ASoC machine driver operations */ static const struct snd_soc_ops p1022_rdk_ops = { @@ -193,11 +198,14 @@ static const struct snd_soc_ops p1022_rdk_ops = { }; /** - * p1022_rdk_probe: platform probe function for the machine driver + * p1022_rdk_probe - platform probe function for the machine driver + * @pdev: platform device pointer * * Although this is a machine driver, the SSI node is the "master" node with * respect to audio hardware connections. Therefore, we create a new ASoC * device for each new SSI node that has a codec attached. + * + * Returns: %0 on success or negative errno value on error */ static int p1022_rdk_probe(struct platform_device *pdev) { @@ -207,6 +215,7 @@ static int p1022_rdk_probe(struct platform_device *pdev) struct device_node *np = ssi_pdev->dev.of_node; struct device_node *codec_np = NULL; struct machine_data *mdata; + struct snd_soc_dai_link_component *comp; const u32 *iprop; int ret; @@ -223,11 +232,33 @@ static int p1022_rdk_probe(struct platform_device *pdev) goto error_put; } - mdata->dai[0].cpu_dai_name = dev_name(&ssi_pdev->dev); + comp = devm_kzalloc(&pdev->dev, 6 * sizeof(*comp), GFP_KERNEL); + if (!comp) { + ret = -ENOMEM; + goto error_put; + } + + mdata->dai[0].cpus = &comp[0]; + mdata->dai[0].codecs = &comp[1]; + mdata->dai[0].platforms = &comp[2]; + + mdata->dai[0].num_cpus = 1; + mdata->dai[0].num_codecs = 1; + mdata->dai[0].num_platforms = 1; + + mdata->dai[1].cpus = &comp[3]; + mdata->dai[1].codecs = &comp[4]; + mdata->dai[1].platforms = &comp[5]; + + mdata->dai[1].num_cpus = 1; + mdata->dai[1].num_codecs = 1; + mdata->dai[1].num_platforms = 1; + + mdata->dai[0].cpus->dai_name = dev_name(&ssi_pdev->dev); mdata->dai[0].ops = &p1022_rdk_ops; /* ASoC core can match codec with device node */ - mdata->dai[0].codec_of_node = codec_np; + mdata->dai[0].codecs->of_node = codec_np; /* * We register two DAIs per SSI, one for playback and the other for @@ -237,8 +268,8 @@ static int p1022_rdk_probe(struct platform_device *pdev) memcpy(&mdata->dai[1], &mdata->dai[0], sizeof(struct snd_soc_dai_link)); /* The DAI names from the codec (snd_soc_dai_driver.name) */ - mdata->dai[0].codec_dai_name = "wm8960-hifi"; - mdata->dai[1].codec_dai_name = mdata->dai[0].codec_dai_name; + mdata->dai[0].codecs->dai_name = "wm8960-hifi"; + mdata->dai[1].codecs->dai_name = mdata->dai[0].codecs->dai_name; /* * Configure the SSI for I2S slave mode. Older device trees have @@ -246,7 +277,7 @@ static int p1022_rdk_probe(struct platform_device *pdev) * only one way to configure the SSI. */ mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBM_CFM; + SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBP_CFP; mdata->codec_clk_direction = SND_SOC_CLOCK_OUT; mdata->cpu_clk_direction = SND_SOC_CLOCK_IN; @@ -270,7 +301,7 @@ static int p1022_rdk_probe(struct platform_device *pdev) } /* Find the playback DMA channel to use. */ - mdata->dai[0].platform_name = mdata->platform_name[0]; + mdata->dai[0].platforms->name = mdata->platform_name[0]; ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0], &mdata->dma_channel_id[0], &mdata->dma_id[0]); @@ -281,7 +312,7 @@ static int p1022_rdk_probe(struct platform_device *pdev) } /* Find the capture DMA channel to use. */ - mdata->dai[1].platform_name = mdata->platform_name[1]; + mdata->dai[1].platforms->name = mdata->platform_name[1]; ret = fsl_asoc_get_dma_channel(np, "fsl,capture-dma", &mdata->dai[1], &mdata->dma_channel_id[1], &mdata->dma_id[1]); @@ -322,11 +353,12 @@ error_put: } /** - * p1022_rdk_remove: remove the platform device + * p1022_rdk_remove - remove the platform device + * @pdev: platform device pointer * * This function is called when the platform device is removed. */ -static int p1022_rdk_remove(struct platform_device *pdev) +static void p1022_rdk_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct machine_data *mdata = @@ -334,8 +366,6 @@ static int p1022_rdk_remove(struct platform_device *pdev) snd_soc_unregister_card(card); kfree(mdata); - - return 0; } static struct platform_driver p1022_rdk_driver = { @@ -351,9 +381,11 @@ static struct platform_driver p1022_rdk_driver = { }; /** - * p1022_rdk_init: machine driver initialization. + * p1022_rdk_init - machine driver initialization. * * This function is called when this module is loaded. + * + * Returns: %0 on success or negative errno value on error */ static int __init p1022_rdk_init(void) { @@ -374,7 +406,7 @@ static int __init p1022_rdk_init(void) } /** - * p1022_rdk_exit: machine driver exit + * p1022_rdk_exit - machine driver exit * * This function is called when this driver is unloaded. */ |