Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 1 | /* |
| 2 | * sam9g20_wm8731 -- SoC audio for AT91SAM9G20-based |
| 3 | * ATMEL AT91SAM9G20ek board. |
| 4 | * |
| 5 | * Copyright (C) 2005 SAN People |
| 6 | * Copyright (C) 2008 Atmel |
| 7 | * |
| 8 | * Authors: Sedji Gaouaou <sedji.gaouaou@atmel.com> |
| 9 | * |
| 10 | * Based on ati_b1_wm8731.c by: |
| 11 | * Frank Mandarino <fmandarino@endrelia.com> |
| 12 | * Copyright 2006 Endrelia Technologies Inc. |
| 13 | * Based on corgi.c by: |
| 14 | * Copyright 2005 Wolfson Microelectronics PLC. |
| 15 | * Copyright 2005 Openedhand Ltd. |
| 16 | * |
| 17 | * This program is free software; you can redistribute it and/or modify |
| 18 | * it under the terms of the GNU General Public License as published by |
| 19 | * the Free Software Foundation; either version 2 of the License, or |
| 20 | * (at your option) any later version. |
| 21 | * |
| 22 | * This program is distributed in the hope that it will be useful, |
| 23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 25 | * GNU General Public License for more details. |
| 26 | * |
| 27 | * You should have received a copy of the GNU General Public License |
| 28 | * along with this program; if not, write to the Free Software |
| 29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 30 | */ |
| 31 | |
| 32 | #include <linux/module.h> |
| 33 | #include <linux/moduleparam.h> |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 34 | #include <linux/kernel.h> |
| 35 | #include <linux/clk.h> |
| 36 | #include <linux/timer.h> |
| 37 | #include <linux/interrupt.h> |
| 38 | #include <linux/platform_device.h> |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 39 | #include <linux/i2c.h> |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 40 | |
| 41 | #include <linux/atmel-ssc.h> |
| 42 | |
| 43 | #include <sound/core.h> |
| 44 | #include <sound/pcm.h> |
| 45 | #include <sound/pcm_params.h> |
| 46 | #include <sound/soc.h> |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 47 | |
Mark Brown | 40135ea | 2009-02-16 16:04:05 +0000 | [diff] [blame] | 48 | #include <asm/mach-types.h> |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 49 | #include <mach/hardware.h> |
| 50 | #include <mach/gpio.h> |
| 51 | |
| 52 | #include "../codecs/wm8731.h" |
| 53 | #include "atmel-pcm.h" |
| 54 | #include "atmel_ssc_dai.h" |
| 55 | |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 56 | #define MCLK_RATE 12000000 |
| 57 | |
Mark Brown | 22df8eb | 2009-07-08 18:18:19 +0100 | [diff] [blame] | 58 | /* |
| 59 | * As shipped the board does not have inputs. However, it is relatively |
| 60 | * straightforward to modify the board to hook them up so support is left |
| 61 | * in the driver. |
| 62 | */ |
| 63 | #undef ENABLE_MIC_INPUT |
| 64 | |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 65 | static struct clk *mclk; |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 66 | |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 67 | static int at91sam9g20ek_hw_params(struct snd_pcm_substream *substream, |
| 68 | struct snd_pcm_hw_params *params) |
| 69 | { |
| 70 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 71 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
| 72 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 73 | int ret; |
| 74 | |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 75 | /* set codec DAI configuration */ |
| 76 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
Mark Brown | 2a01e5f | 2009-07-08 18:05:51 +0100 | [diff] [blame] | 77 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 78 | if (ret < 0) |
| 79 | return ret; |
| 80 | |
| 81 | /* set cpu DAI configuration */ |
| 82 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
Mark Brown | 2a01e5f | 2009-07-08 18:05:51 +0100 | [diff] [blame] | 83 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 84 | if (ret < 0) |
| 85 | return ret; |
| 86 | |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | static struct snd_soc_ops at91sam9g20ek_ops = { |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 91 | .hw_params = at91sam9g20ek_hw_params, |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 92 | }; |
| 93 | |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 94 | static int at91sam9g20ek_set_bias_level(struct snd_soc_card *card, |
Mark Brown | d4c6005 | 2011-06-06 19:13:23 +0100 | [diff] [blame] | 95 | struct snd_soc_dapm_context *dapm, |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 96 | enum snd_soc_bias_level level) |
| 97 | { |
| 98 | static int mclk_on; |
| 99 | int ret = 0; |
| 100 | |
| 101 | switch (level) { |
| 102 | case SND_SOC_BIAS_ON: |
| 103 | case SND_SOC_BIAS_PREPARE: |
| 104 | if (!mclk_on) |
| 105 | ret = clk_enable(mclk); |
| 106 | if (ret == 0) |
| 107 | mclk_on = 1; |
| 108 | break; |
| 109 | |
| 110 | case SND_SOC_BIAS_OFF: |
| 111 | case SND_SOC_BIAS_STANDBY: |
| 112 | if (mclk_on) |
| 113 | clk_disable(mclk); |
| 114 | mclk_on = 0; |
| 115 | break; |
| 116 | } |
| 117 | |
| 118 | return ret; |
| 119 | } |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 120 | |
| 121 | static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = { |
| 122 | SND_SOC_DAPM_MIC("Int Mic", NULL), |
| 123 | SND_SOC_DAPM_SPK("Ext Spk", NULL), |
| 124 | }; |
| 125 | |
| 126 | static const struct snd_soc_dapm_route intercon[] = { |
| 127 | |
| 128 | /* speaker connected to LHPOUT */ |
| 129 | {"Ext Spk", NULL, "LHPOUT"}, |
| 130 | |
| 131 | /* mic is connected to Mic Jack, with WM8731 Mic Bias */ |
| 132 | {"MICIN", NULL, "Mic Bias"}, |
| 133 | {"Mic Bias", NULL, "Int Mic"}, |
| 134 | }; |
| 135 | |
| 136 | /* |
| 137 | * Logic for a wm8731 as connected on a at91sam9g20ek board. |
| 138 | */ |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 139 | static int at91sam9g20ek_wm8731_init(struct snd_soc_pcm_runtime *rtd) |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 140 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 141 | struct snd_soc_codec *codec = rtd->codec; |
| 142 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 143 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
Mark Brown | 96fd6d4 | 2009-07-08 18:26:16 +0100 | [diff] [blame] | 144 | int ret; |
| 145 | |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 146 | printk(KERN_DEBUG |
| 147 | "at91sam9g20ek_wm8731 " |
| 148 | ": at91sam9g20ek_wm8731_init() called\n"); |
| 149 | |
Nicolas Ferre | 6bb74a7 | 2011-05-24 11:51:16 +0200 | [diff] [blame] | 150 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_MCLK, |
Mark Brown | 96fd6d4 | 2009-07-08 18:26:16 +0100 | [diff] [blame] | 151 | MCLK_RATE, SND_SOC_CLOCK_IN); |
| 152 | if (ret < 0) { |
| 153 | printk(KERN_ERR "Failed to set WM8731 SYSCLK: %d\n", ret); |
| 154 | return ret; |
| 155 | } |
| 156 | |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 157 | /* Add specific widgets */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 158 | snd_soc_dapm_new_controls(dapm, at91sam9g20ek_dapm_widgets, |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 159 | ARRAY_SIZE(at91sam9g20ek_dapm_widgets)); |
| 160 | /* Set up specific audio path interconnects */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 161 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 162 | |
| 163 | /* not connected */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 164 | snd_soc_dapm_nc_pin(dapm, "RLINEIN"); |
| 165 | snd_soc_dapm_nc_pin(dapm, "LLINEIN"); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 166 | |
Mark Brown | 22df8eb | 2009-07-08 18:18:19 +0100 | [diff] [blame] | 167 | #ifdef ENABLE_MIC_INPUT |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 168 | snd_soc_dapm_enable_pin(dapm, "Int Mic"); |
Mark Brown | 22df8eb | 2009-07-08 18:18:19 +0100 | [diff] [blame] | 169 | #else |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 170 | snd_soc_dapm_nc_pin(dapm, "Int Mic"); |
Mark Brown | 22df8eb | 2009-07-08 18:18:19 +0100 | [diff] [blame] | 171 | #endif |
| 172 | |
| 173 | /* always connected */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 174 | snd_soc_dapm_enable_pin(dapm, "Ext Spk"); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 175 | |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static struct snd_soc_dai_link at91sam9g20ek_dai = { |
| 180 | .name = "WM8731", |
| 181 | .stream_name = "WM8731 PCM", |
Bo Shen | 3310b57 | 2012-11-14 18:09:10 +0800 | [diff] [blame] | 182 | .cpu_dai_name = "at91rm9200_ssc.0", |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 183 | .codec_dai_name = "wm8731-hifi", |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 184 | .init = at91sam9g20ek_wm8731_init, |
Bo Shen | 3310b57 | 2012-11-14 18:09:10 +0800 | [diff] [blame] | 185 | .platform_name = "at91rm9200_ssc.0", |
Mark Brown | 99b59f3 | 2011-03-27 14:35:15 +0100 | [diff] [blame] | 186 | .codec_name = "wm8731.0-001b", |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 187 | .ops = &at91sam9g20ek_ops, |
| 188 | }; |
| 189 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 190 | static struct snd_soc_card snd_soc_at91sam9g20ek = { |
Mark Brown | 7ee7538 | 2009-02-16 18:00:58 +0000 | [diff] [blame] | 191 | .name = "AT91SAMG20-EK", |
Axel Lin | 338d68d | 2011-12-22 21:14:58 +0800 | [diff] [blame] | 192 | .owner = THIS_MODULE, |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 193 | .dai_link = &at91sam9g20ek_dai, |
| 194 | .num_links = 1, |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 195 | .set_bias_level = at91sam9g20ek_set_bias_level, |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 196 | }; |
| 197 | |
Bill Pemberton | 71d14ea | 2012-12-07 09:26:21 -0500 | [diff] [blame] | 198 | static int at91sam9g20ek_audio_probe(struct platform_device *pdev) |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 199 | { |
Bo Shen | 531f67e | 2012-11-14 18:09:11 +0800 | [diff] [blame] | 200 | struct device_node *np = pdev->dev.of_node; |
| 201 | struct device_node *codec_np, *cpu_np; |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 202 | struct clk *pllb; |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 203 | struct snd_soc_card *card = &snd_soc_at91sam9g20ek; |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 204 | int ret; |
| 205 | |
Bo Shen | 531f67e | 2012-11-14 18:09:11 +0800 | [diff] [blame] | 206 | if (!np) { |
| 207 | if (!(machine_is_at91sam9g20ek() || |
| 208 | machine_is_at91sam9g20ek_2mmc())) |
| 209 | return -ENODEV; |
| 210 | } |
Mark Brown | 40135ea | 2009-02-16 16:04:05 +0000 | [diff] [blame] | 211 | |
Bo Shen | 3310b57 | 2012-11-14 18:09:10 +0800 | [diff] [blame] | 212 | ret = atmel_ssc_set_audio(0); |
| 213 | if (ret) { |
| 214 | dev_err(&pdev->dev, "ssc channel is not valid\n"); |
| 215 | return -EINVAL; |
| 216 | } |
| 217 | |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 218 | /* |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 219 | * Codec MCLK is supplied by PCK0 - set it up. |
| 220 | */ |
| 221 | mclk = clk_get(NULL, "pck0"); |
| 222 | if (IS_ERR(mclk)) { |
| 223 | printk(KERN_ERR "ASoC: Failed to get MCLK\n"); |
| 224 | ret = PTR_ERR(mclk); |
| 225 | goto err; |
| 226 | } |
| 227 | |
| 228 | pllb = clk_get(NULL, "pllb"); |
Vasiliy Kulikov | b3915d1 | 2010-11-22 18:59:13 +0300 | [diff] [blame] | 229 | if (IS_ERR(pllb)) { |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 230 | printk(KERN_ERR "ASoC: Failed to get PLLB\n"); |
Vasiliy Kulikov | b3915d1 | 2010-11-22 18:59:13 +0300 | [diff] [blame] | 231 | ret = PTR_ERR(pllb); |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 232 | goto err_mclk; |
| 233 | } |
| 234 | ret = clk_set_parent(mclk, pllb); |
| 235 | clk_put(pllb); |
| 236 | if (ret != 0) { |
| 237 | printk(KERN_ERR "ASoC: Failed to set MCLK parent\n"); |
| 238 | goto err_mclk; |
| 239 | } |
| 240 | |
| 241 | clk_set_rate(mclk, MCLK_RATE); |
| 242 | |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 243 | card->dev = &pdev->dev; |
Bo Shen | 531f67e | 2012-11-14 18:09:11 +0800 | [diff] [blame] | 244 | |
| 245 | /* Parse device node info */ |
| 246 | if (np) { |
| 247 | ret = snd_soc_of_parse_card_name(card, "atmel,model"); |
| 248 | if (ret) |
| 249 | goto err; |
| 250 | |
| 251 | ret = snd_soc_of_parse_audio_routing(card, |
| 252 | "atmel,audio-routing"); |
| 253 | if (ret) |
| 254 | goto err; |
| 255 | |
| 256 | /* Parse codec info */ |
| 257 | at91sam9g20ek_dai.codec_name = NULL; |
| 258 | codec_np = of_parse_phandle(np, "atmel,audio-codec", 0); |
| 259 | if (!codec_np) { |
| 260 | dev_err(&pdev->dev, "codec info missing\n"); |
| 261 | return -EINVAL; |
| 262 | } |
| 263 | at91sam9g20ek_dai.codec_of_node = codec_np; |
| 264 | |
| 265 | /* Parse dai and platform info */ |
| 266 | at91sam9g20ek_dai.cpu_dai_name = NULL; |
| 267 | at91sam9g20ek_dai.platform_name = NULL; |
| 268 | cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0); |
| 269 | if (!cpu_np) { |
| 270 | dev_err(&pdev->dev, "dai and pcm info missing\n"); |
| 271 | return -EINVAL; |
| 272 | } |
| 273 | at91sam9g20ek_dai.cpu_of_node = cpu_np; |
| 274 | at91sam9g20ek_dai.platform_of_node = cpu_np; |
| 275 | |
| 276 | of_node_put(codec_np); |
| 277 | of_node_put(cpu_np); |
| 278 | } |
| 279 | |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 280 | ret = snd_soc_register_card(card); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 281 | if (ret) { |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 282 | printk(KERN_ERR "ASoC: snd_soc_register_card() failed\n"); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | return ret; |
| 286 | |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 287 | err_mclk: |
| 288 | clk_put(mclk); |
| 289 | mclk = NULL; |
| 290 | err: |
Bo Shen | 3310b57 | 2012-11-14 18:09:10 +0800 | [diff] [blame] | 291 | atmel_ssc_put_audio(0); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 292 | return ret; |
| 293 | } |
| 294 | |
Bill Pemberton | 71d14ea | 2012-12-07 09:26:21 -0500 | [diff] [blame] | 295 | static int at91sam9g20ek_audio_remove(struct platform_device *pdev) |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 296 | { |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 297 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
| 298 | |
Bo Shen | 151edfc | 2013-01-31 11:53:40 +0800 | [diff] [blame] | 299 | clk_disable(mclk); |
Mark Brown | 5de7f9b | 2009-02-16 17:51:54 +0000 | [diff] [blame] | 300 | mclk = NULL; |
Bo Shen | 151edfc | 2013-01-31 11:53:40 +0800 | [diff] [blame] | 301 | snd_soc_unregister_card(card); |
| 302 | atmel_ssc_put_audio(0); |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 303 | |
| 304 | return 0; |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 305 | } |
| 306 | |
Bo Shen | 531f67e | 2012-11-14 18:09:11 +0800 | [diff] [blame] | 307 | #ifdef CONFIG_OF |
| 308 | static const struct of_device_id at91sam9g20ek_wm8731_dt_ids[] = { |
| 309 | { .compatible = "atmel,at91sam9g20ek-wm8731-audio", }, |
| 310 | { } |
| 311 | }; |
| 312 | MODULE_DEVICE_TABLE(of, at91sam9g20ek_wm8731_dt_ids); |
| 313 | #endif |
| 314 | |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 315 | static struct platform_driver at91sam9g20ek_audio_driver = { |
| 316 | .driver = { |
| 317 | .name = "at91sam9g20ek-audio", |
| 318 | .owner = THIS_MODULE, |
Bo Shen | 531f67e | 2012-11-14 18:09:11 +0800 | [diff] [blame] | 319 | .of_match_table = of_match_ptr(at91sam9g20ek_wm8731_dt_ids), |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 320 | }, |
| 321 | .probe = at91sam9g20ek_audio_probe, |
Bill Pemberton | 71d14ea | 2012-12-07 09:26:21 -0500 | [diff] [blame] | 322 | .remove = at91sam9g20ek_audio_remove, |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 323 | }; |
| 324 | |
| 325 | module_platform_driver(at91sam9g20ek_audio_driver); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 326 | |
| 327 | /* Module information */ |
| 328 | MODULE_AUTHOR("Sedji Gaouaou <sedji.gaouaou@atmel.com>"); |
| 329 | MODULE_DESCRIPTION("ALSA SoC AT91SAM9G20EK_WM8731"); |
Bo Shen | 242b9bb | 2012-10-11 10:38:15 +0800 | [diff] [blame] | 330 | MODULE_ALIAS("platform:at91sam9g20ek-audio"); |
Sedji Gaouaou | 5b99e6c | 2008-10-03 16:58:58 +0200 | [diff] [blame] | 331 | MODULE_LICENSE("GPL"); |