diff options
Diffstat (limited to 'sound/soc/atmel/sam9g20_wm8731.c')
| -rw-r--r-- | sound/soc/atmel/sam9g20_wm8731.c | 248 |
1 files changed, 68 insertions, 180 deletions
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c index 802717eccbd0..be54a63f43d5 100644 --- a/sound/soc/atmel/sam9g20_wm8731.c +++ b/sound/soc/atmel/sam9g20_wm8731.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * sam9g20_wm8731 -- SoC audio for AT91SAM9G20-based * ATMEL AT91SAM9G20ek board. @@ -13,20 +14,6 @@ * Based on corgi.c by: * Copyright 2005 Wolfson Microelectronics PLC. * Copyright 2005 Openedhand Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/module.h> @@ -36,7 +23,7 @@ #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/platform_device.h> -#include <linux/i2c.h> +#include <linux/of.h> #include <linux/atmel-ssc.h> @@ -45,10 +32,6 @@ #include <sound/pcm_params.h> #include <sound/soc.h> -#include <asm/mach-types.h> -#include <mach/hardware.h> -#include <mach/gpio.h> - #include "../codecs/wm8731.h" #include "atmel-pcm.h" #include "atmel_ssc_dai.h" @@ -62,62 +45,6 @@ */ #undef ENABLE_MIC_INPUT -static struct clk *mclk; - -static int at91sam9g20ek_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *codec_dai = rtd->codec_dai; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret; - - /* set codec DAI configuration */ - ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | - SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); - if (ret < 0) - return ret; - - /* set cpu DAI configuration */ - ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | - SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); - if (ret < 0) - return ret; - - return 0; -} - -static struct snd_soc_ops at91sam9g20ek_ops = { - .hw_params = at91sam9g20ek_hw_params, -}; - -static int at91sam9g20ek_set_bias_level(struct snd_soc_card *card, - struct snd_soc_dapm_context *dapm, - enum snd_soc_bias_level level) -{ - static int mclk_on; - int ret = 0; - - switch (level) { - case SND_SOC_BIAS_ON: - case SND_SOC_BIAS_PREPARE: - if (!mclk_on) - ret = clk_enable(mclk); - if (ret == 0) - mclk_on = 1; - break; - - case SND_SOC_BIAS_OFF: - case SND_SOC_BIAS_STANDBY: - if (mclk_on) - clk_disable(mclk); - mclk_on = 0; - break; - } - - return ret; -} - static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = { SND_SOC_DAPM_MIC("Int Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), @@ -125,8 +52,9 @@ static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = { static const struct snd_soc_dapm_route intercon[] = { - /* speaker connected to LHPOUT */ + /* speaker connected to LHPOUT/RHPOUT */ {"Ext Spk", NULL, "LHPOUT"}, + {"Ext Spk", NULL, "RHPOUT"}, /* mic is connected to Mic Jack, with WM8731 Mic Bias */ {"MICIN", NULL, "Mic Bias"}, @@ -138,53 +66,41 @@ static const struct snd_soc_dapm_route intercon[] = { */ static int at91sam9g20ek_wm8731_init(struct snd_soc_pcm_runtime *rtd) { - struct snd_soc_codec *codec = rtd->codec; - struct snd_soc_dai *codec_dai = rtd->codec_dai; - struct snd_soc_dapm_context *dapm = &codec->dapm; + struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); + struct device *dev = rtd->dev; int ret; - printk(KERN_DEBUG - "at91sam9g20ek_wm8731 " - ": at91sam9g20ek_wm8731_init() called\n"); + dev_dbg(dev, "%s called\n", __func__); ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_MCLK, - MCLK_RATE, SND_SOC_CLOCK_IN); + MCLK_RATE, SND_SOC_CLOCK_IN); if (ret < 0) { - printk(KERN_ERR "Failed to set WM8731 SYSCLK: %d\n", ret); + dev_err(dev, "Failed to set WM8731 SYSCLK: %d\n", ret); return ret; } - /* Add specific widgets */ - snd_soc_dapm_new_controls(dapm, at91sam9g20ek_dapm_widgets, - ARRAY_SIZE(at91sam9g20ek_dapm_widgets)); - /* Set up specific audio path interconnects */ - snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); - - /* not connected */ - snd_soc_dapm_nc_pin(dapm, "RLINEIN"); - snd_soc_dapm_nc_pin(dapm, "LLINEIN"); - -#ifdef ENABLE_MIC_INPUT - snd_soc_dapm_enable_pin(dapm, "Int Mic"); -#else - snd_soc_dapm_nc_pin(dapm, "Int Mic"); +#ifndef ENABLE_MIC_INPUT + snd_soc_dapm_disable_pin(snd_soc_card_to_dapm(rtd->card), "Int Mic"); #endif - /* always connected */ - snd_soc_dapm_enable_pin(dapm, "Ext Spk"); - return 0; } +SND_SOC_DAILINK_DEFS(pcm, + DAILINK_COMP_ARRAY(COMP_CPU("at91rm9200_ssc.0")), + DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.0-001b", "wm8731-hifi")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("at91rm9200_ssc.0"))); + static struct snd_soc_dai_link at91sam9g20ek_dai = { .name = "WM8731", .stream_name = "WM8731 PCM", - .cpu_dai_name = "at91rm9200_ssc.0", - .codec_dai_name = "wm8731-hifi", .init = at91sam9g20ek_wm8731_init, - .platform_name = "at91rm9200_ssc.0", - .codec_name = "wm8731.0-001b", - .ops = &at91sam9g20ek_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBP_CFP, +#ifndef ENABLE_MIC_INPUT + .playback_only = true, +#endif + SND_SOC_DAILINK_REG(pcm), }; static struct snd_soc_card snd_soc_at91sam9g20ek = { @@ -192,116 +108,89 @@ static struct snd_soc_card snd_soc_at91sam9g20ek = { .owner = THIS_MODULE, .dai_link = &at91sam9g20ek_dai, .num_links = 1, - .set_bias_level = at91sam9g20ek_set_bias_level, + + .dapm_widgets = at91sam9g20ek_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(at91sam9g20ek_dapm_widgets), + .dapm_routes = intercon, + .num_dapm_routes = ARRAY_SIZE(intercon), + .fully_routed = true, }; static int at91sam9g20ek_audio_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct device_node *codec_np, *cpu_np; - struct clk *pllb; struct snd_soc_card *card = &snd_soc_at91sam9g20ek; int ret; if (!np) { - if (!(machine_is_at91sam9g20ek() || - machine_is_at91sam9g20ek_2mmc())) - return -ENODEV; + return -ENODEV; } ret = atmel_ssc_set_audio(0); if (ret) { - dev_err(&pdev->dev, "ssc channel is not valid\n"); - return -EINVAL; - } - - /* - * Codec MCLK is supplied by PCK0 - set it up. - */ - mclk = clk_get(NULL, "pck0"); - if (IS_ERR(mclk)) { - printk(KERN_ERR "ASoC: Failed to get MCLK\n"); - ret = PTR_ERR(mclk); - goto err; - } - - pllb = clk_get(NULL, "pllb"); - if (IS_ERR(pllb)) { - printk(KERN_ERR "ASoC: Failed to get PLLB\n"); - ret = PTR_ERR(pllb); - goto err_mclk; - } - ret = clk_set_parent(mclk, pllb); - clk_put(pllb); - if (ret != 0) { - printk(KERN_ERR "ASoC: Failed to set MCLK parent\n"); - goto err_mclk; + dev_err(&pdev->dev, "ssc channel is not valid: %d\n", ret); + return ret; } - clk_set_rate(mclk, MCLK_RATE); - card->dev = &pdev->dev; /* Parse device node info */ - if (np) { - ret = snd_soc_of_parse_card_name(card, "atmel,model"); - if (ret) - goto err; - - ret = snd_soc_of_parse_audio_routing(card, - "atmel,audio-routing"); - if (ret) - goto err; - - /* Parse codec info */ - at91sam9g20ek_dai.codec_name = NULL; - codec_np = of_parse_phandle(np, "atmel,audio-codec", 0); - if (!codec_np) { - dev_err(&pdev->dev, "codec info missing\n"); - return -EINVAL; - } - at91sam9g20ek_dai.codec_of_node = codec_np; - - /* Parse dai and platform info */ - at91sam9g20ek_dai.cpu_dai_name = NULL; - at91sam9g20ek_dai.platform_name = NULL; - cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0); - if (!cpu_np) { - dev_err(&pdev->dev, "dai and pcm info missing\n"); - return -EINVAL; - } - at91sam9g20ek_dai.cpu_of_node = cpu_np; - at91sam9g20ek_dai.platform_of_node = cpu_np; + ret = snd_soc_of_parse_card_name(card, "atmel,model"); + if (ret) + goto err; + + ret = snd_soc_of_parse_audio_routing(card, + "atmel,audio-routing"); + if (ret) + goto err; + /* Parse codec info */ + at91sam9g20ek_dai.codecs->name = NULL; + codec_np = of_parse_phandle(np, "atmel,audio-codec", 0); + if (!codec_np) { + dev_err(&pdev->dev, "codec info missing\n"); + ret = -EINVAL; + goto err; + } + at91sam9g20ek_dai.codecs->of_node = codec_np; + + /* Parse dai and platform info */ + at91sam9g20ek_dai.cpus->dai_name = NULL; + at91sam9g20ek_dai.platforms->name = NULL; + cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "dai and pcm info missing\n"); of_node_put(codec_np); - of_node_put(cpu_np); + ret = -EINVAL; + goto err; } + at91sam9g20ek_dai.cpus->of_node = cpu_np; + at91sam9g20ek_dai.platforms->of_node = cpu_np; + + of_node_put(codec_np); + of_node_put(cpu_np); ret = snd_soc_register_card(card); if (ret) { - printk(KERN_ERR "ASoC: snd_soc_register_card() failed\n"); + dev_err_probe(&pdev->dev, ret, + "snd_soc_register_card() failed\n"); + goto err; } - return ret; + return 0; -err_mclk: - clk_put(mclk); - mclk = NULL; err: atmel_ssc_put_audio(0); return ret; } -static int at91sam9g20ek_audio_remove(struct platform_device *pdev) +static void at91sam9g20ek_audio_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); - clk_disable(mclk); - mclk = NULL; snd_soc_unregister_card(card); atmel_ssc_put_audio(0); - - return 0; } #ifdef CONFIG_OF @@ -315,11 +204,10 @@ MODULE_DEVICE_TABLE(of, at91sam9g20ek_wm8731_dt_ids); static struct platform_driver at91sam9g20ek_audio_driver = { .driver = { .name = "at91sam9g20ek-audio", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(at91sam9g20ek_wm8731_dt_ids), }, .probe = at91sam9g20ek_audio_probe, - .remove = at91sam9g20ek_audio_remove, + .remove = at91sam9g20ek_audio_remove, }; module_platform_driver(at91sam9g20ek_audio_driver); |