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673 lines
16 KiB
673 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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// |
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// Copyright (C) 2015 - 2016 Samsung Electronics Co., Ltd. |
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// |
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// Authors: Inha Song <[email protected]> |
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// Sylwester Nawrocki <[email protected]> |
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#include <linux/clk.h> |
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#include <linux/gpio.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include "i2s.h" |
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#include "../codecs/wm5110.h" |
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|
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/* |
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* The source clock is XCLKOUT with its mux set to the external fixed rate |
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* oscillator (XXTI). |
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*/ |
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#define MCLK_RATE 24000000U |
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#define TM2_DAI_AIF1 0 |
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#define TM2_DAI_AIF2 1 |
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struct tm2_machine_priv { |
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struct snd_soc_component *component; |
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unsigned int sysclk_rate; |
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struct gpio_desc *gpio_mic_bias; |
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}; |
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static int tm2_start_sysclk(struct snd_soc_card *card) |
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{ |
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struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); |
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struct snd_soc_component *component = priv->component; |
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int ret; |
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ret = snd_soc_component_set_pll(component, WM5110_FLL1_REFCLK, |
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ARIZONA_FLL_SRC_MCLK1, |
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MCLK_RATE, |
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priv->sysclk_rate); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to set FLL1 source: %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_component_set_pll(component, WM5110_FLL1, |
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ARIZONA_FLL_SRC_MCLK1, |
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MCLK_RATE, |
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priv->sysclk_rate); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to start FLL1: %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_SYSCLK, |
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ARIZONA_CLK_SRC_FLL1, |
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priv->sysclk_rate, |
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SND_SOC_CLOCK_IN); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to set SYSCLK source: %d\n", ret); |
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return ret; |
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} |
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return 0; |
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} |
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static int tm2_stop_sysclk(struct snd_soc_card *card) |
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{ |
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struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); |
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struct snd_soc_component *component = priv->component; |
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int ret; |
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ret = snd_soc_component_set_pll(component, WM5110_FLL1, 0, 0, 0); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to stop FLL1: %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_SYSCLK, |
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ARIZONA_CLK_SRC_FLL1, 0, 0); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to stop SYSCLK: %d\n", ret); |
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return ret; |
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} |
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return 0; |
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} |
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static int tm2_aif1_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; |
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struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(rtd->card); |
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switch (params_rate(params)) { |
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case 4000: |
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case 8000: |
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case 12000: |
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case 16000: |
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case 24000: |
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case 32000: |
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case 48000: |
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case 96000: |
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case 192000: |
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/* Highest possible SYSCLK frequency: 147.456MHz */ |
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priv->sysclk_rate = 147456000U; |
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break; |
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case 11025: |
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case 22050: |
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case 44100: |
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case 88200: |
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case 176400: |
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/* Highest possible SYSCLK frequency: 135.4752 MHz */ |
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priv->sysclk_rate = 135475200U; |
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break; |
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default: |
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dev_err(component->dev, "Not supported sample rate: %d\n", |
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params_rate(params)); |
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return -EINVAL; |
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} |
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return tm2_start_sysclk(rtd->card); |
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} |
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static struct snd_soc_ops tm2_aif1_ops = { |
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.hw_params = tm2_aif1_hw_params, |
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}; |
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static int tm2_aif2_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; |
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unsigned int asyncclk_rate; |
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int ret; |
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switch (params_rate(params)) { |
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case 8000: |
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case 12000: |
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case 16000: |
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/* Highest possible ASYNCCLK frequency: 49.152MHz */ |
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asyncclk_rate = 49152000U; |
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break; |
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case 11025: |
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/* Highest possible ASYNCCLK frequency: 45.1584 MHz */ |
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asyncclk_rate = 45158400U; |
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break; |
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default: |
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dev_err(component->dev, "Not supported sample rate: %d\n", |
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params_rate(params)); |
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return -EINVAL; |
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} |
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ret = snd_soc_component_set_pll(component, WM5110_FLL2_REFCLK, |
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ARIZONA_FLL_SRC_MCLK1, |
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MCLK_RATE, |
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asyncclk_rate); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to set FLL2 source: %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_component_set_pll(component, WM5110_FLL2, |
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ARIZONA_FLL_SRC_MCLK1, |
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MCLK_RATE, |
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asyncclk_rate); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to start FLL2: %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_ASYNCCLK, |
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ARIZONA_CLK_SRC_FLL2, |
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asyncclk_rate, |
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SND_SOC_CLOCK_IN); |
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if (ret < 0) { |
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dev_err(component->dev, "Failed to set ASYNCCLK source: %d\n", ret); |
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return ret; |
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} |
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return 0; |
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} |
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static int tm2_aif2_hw_free(struct snd_pcm_substream *substream) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; |
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int ret; |
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/* disable FLL2 */ |
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ret = snd_soc_component_set_pll(component, WM5110_FLL2, ARIZONA_FLL_SRC_MCLK1, |
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0, 0); |
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if (ret < 0) |
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dev_err(component->dev, "Failed to stop FLL2: %d\n", ret); |
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return ret; |
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} |
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static struct snd_soc_ops tm2_aif2_ops = { |
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.hw_params = tm2_aif2_hw_params, |
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.hw_free = tm2_aif2_hw_free, |
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}; |
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static int tm2_hdmi_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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unsigned int bfs; |
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int bitwidth, ret; |
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bitwidth = snd_pcm_format_width(params_format(params)); |
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if (bitwidth < 0) { |
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dev_err(rtd->card->dev, "Invalid bit-width: %d\n", bitwidth); |
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return bitwidth; |
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} |
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switch (bitwidth) { |
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case 48: |
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bfs = 64; |
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break; |
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case 16: |
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bfs = 32; |
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break; |
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default: |
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dev_err(rtd->card->dev, "Unsupported bit-width: %d\n", bitwidth); |
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return -EINVAL; |
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} |
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switch (params_rate(params)) { |
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case 48000: |
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case 96000: |
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case 192000: |
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break; |
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default: |
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dev_err(rtd->card->dev, "Unsupported sample rate: %d\n", |
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params_rate(params)); |
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return -EINVAL; |
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} |
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ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_OPCLK, |
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0, SAMSUNG_I2S_OPCLK_PCLK); |
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if (ret < 0) |
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return ret; |
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ret = snd_soc_dai_set_clkdiv(cpu_dai, SAMSUNG_I2S_DIV_BCLK, bfs); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static struct snd_soc_ops tm2_hdmi_ops = { |
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.hw_params = tm2_hdmi_hw_params, |
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}; |
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static int tm2_mic_bias(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *kcontrol, int event) |
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{ |
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struct snd_soc_card *card = w->dapm->card; |
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struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); |
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switch (event) { |
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case SND_SOC_DAPM_PRE_PMU: |
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gpiod_set_value_cansleep(priv->gpio_mic_bias, 1); |
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break; |
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case SND_SOC_DAPM_POST_PMD: |
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gpiod_set_value_cansleep(priv->gpio_mic_bias, 0); |
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break; |
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} |
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return 0; |
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} |
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static int tm2_set_bias_level(struct snd_soc_card *card, |
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struct snd_soc_dapm_context *dapm, |
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enum snd_soc_bias_level level) |
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{ |
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struct snd_soc_pcm_runtime *rtd; |
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rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]); |
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if (dapm->dev != asoc_rtd_to_codec(rtd, 0)->dev) |
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return 0; |
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switch (level) { |
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case SND_SOC_BIAS_STANDBY: |
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if (card->dapm.bias_level == SND_SOC_BIAS_OFF) |
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tm2_start_sysclk(card); |
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break; |
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case SND_SOC_BIAS_OFF: |
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tm2_stop_sysclk(card); |
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break; |
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default: |
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break; |
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} |
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return 0; |
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} |
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static struct snd_soc_aux_dev tm2_speaker_amp_dev; |
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static int tm2_late_probe(struct snd_soc_card *card) |
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{ |
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struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); |
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unsigned int ch_map[] = { 0, 1 }; |
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struct snd_soc_dai *amp_pdm_dai; |
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struct snd_soc_pcm_runtime *rtd; |
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struct snd_soc_dai *aif1_dai; |
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struct snd_soc_dai *aif2_dai; |
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int ret; |
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rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[TM2_DAI_AIF1]); |
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aif1_dai = asoc_rtd_to_codec(rtd, 0); |
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priv->component = asoc_rtd_to_codec(rtd, 0)->component; |
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ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0); |
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if (ret < 0) { |
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dev_err(aif1_dai->dev, "Failed to set SYSCLK: %d\n", ret); |
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return ret; |
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} |
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rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[TM2_DAI_AIF2]); |
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aif2_dai = asoc_rtd_to_codec(rtd, 0); |
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ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0); |
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if (ret < 0) { |
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dev_err(aif2_dai->dev, "Failed to set ASYNCCLK: %d\n", ret); |
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return ret; |
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} |
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amp_pdm_dai = snd_soc_find_dai(&tm2_speaker_amp_dev.dlc); |
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if (!amp_pdm_dai) |
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return -ENODEV; |
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/* Set the MAX98504 V/I sense PDM Tx DAI channel mapping */ |
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ret = snd_soc_dai_set_channel_map(amp_pdm_dai, ARRAY_SIZE(ch_map), |
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ch_map, 0, NULL); |
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if (ret < 0) |
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return ret; |
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ret = snd_soc_dai_set_tdm_slot(amp_pdm_dai, 0x3, 0x0, 2, 16); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static const struct snd_kcontrol_new tm2_controls[] = { |
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SOC_DAPM_PIN_SWITCH("HP"), |
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SOC_DAPM_PIN_SWITCH("SPK"), |
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SOC_DAPM_PIN_SWITCH("RCV"), |
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SOC_DAPM_PIN_SWITCH("VPS"), |
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SOC_DAPM_PIN_SWITCH("HDMI"), |
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SOC_DAPM_PIN_SWITCH("Main Mic"), |
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SOC_DAPM_PIN_SWITCH("Sub Mic"), |
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SOC_DAPM_PIN_SWITCH("Third Mic"), |
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SOC_DAPM_PIN_SWITCH("Headset Mic"), |
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}; |
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static const struct snd_soc_dapm_widget tm2_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("HP", NULL), |
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SND_SOC_DAPM_SPK("SPK", NULL), |
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SND_SOC_DAPM_SPK("RCV", NULL), |
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SND_SOC_DAPM_LINE("VPS", NULL), |
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SND_SOC_DAPM_LINE("HDMI", NULL), |
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SND_SOC_DAPM_MIC("Main Mic", tm2_mic_bias), |
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SND_SOC_DAPM_MIC("Sub Mic", NULL), |
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SND_SOC_DAPM_MIC("Third Mic", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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}; |
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static const struct snd_soc_component_driver tm2_component = { |
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.name = "tm2-audio", |
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}; |
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static struct snd_soc_dai_driver tm2_ext_dai[] = { |
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{ |
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.name = "Voice call", |
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.playback = { |
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.channels_min = 1, |
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.channels_max = 4, |
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.rate_min = 8000, |
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.rate_max = 48000, |
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.rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | |
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SNDRV_PCM_RATE_48000), |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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.capture = { |
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.channels_min = 1, |
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.channels_max = 4, |
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.rate_min = 8000, |
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.rate_max = 48000, |
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.rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | |
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SNDRV_PCM_RATE_48000), |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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}, |
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{ |
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.name = "Bluetooth", |
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.playback = { |
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.channels_min = 1, |
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.channels_max = 4, |
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.rate_min = 8000, |
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.rate_max = 16000, |
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.rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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.capture = { |
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.channels_min = 1, |
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.channels_max = 2, |
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.rate_min = 8000, |
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.rate_max = 16000, |
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.rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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}, |
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}; |
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SND_SOC_DAILINK_DEFS(aif1, |
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DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm5110-aif1")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(voice, |
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DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm5110-aif2")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(bt, |
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DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm5110-aif3")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(hdmi, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link tm2_dai_links[] = { |
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{ |
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.name = "WM5110 AIF1", |
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.stream_name = "HiFi Primary", |
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.ops = &tm2_aif1_ops, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBM_CFM, |
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SND_SOC_DAILINK_REG(aif1), |
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}, { |
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.name = "WM5110 Voice", |
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.stream_name = "Voice call", |
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.ops = &tm2_aif2_ops, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBM_CFM, |
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.ignore_suspend = 1, |
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SND_SOC_DAILINK_REG(voice), |
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}, { |
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.name = "WM5110 BT", |
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.stream_name = "Bluetooth", |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBM_CFM, |
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.ignore_suspend = 1, |
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SND_SOC_DAILINK_REG(bt), |
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}, { |
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.name = "HDMI", |
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.stream_name = "i2s1", |
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.ops = &tm2_hdmi_ops, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS, |
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SND_SOC_DAILINK_REG(hdmi), |
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} |
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}; |
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static struct snd_soc_card tm2_card = { |
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.owner = THIS_MODULE, |
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|
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.dai_link = tm2_dai_links, |
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.controls = tm2_controls, |
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.num_controls = ARRAY_SIZE(tm2_controls), |
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.dapm_widgets = tm2_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(tm2_dapm_widgets), |
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.aux_dev = &tm2_speaker_amp_dev, |
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.num_aux_devs = 1, |
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|
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.late_probe = tm2_late_probe, |
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.set_bias_level = tm2_set_bias_level, |
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}; |
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|
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static int tm2_probe(struct platform_device *pdev) |
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{ |
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struct device_node *cpu_dai_node[2] = {}; |
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struct device_node *codec_dai_node[2] = {}; |
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const char *cells_name = NULL; |
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struct device *dev = &pdev->dev; |
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struct snd_soc_card *card = &tm2_card; |
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struct tm2_machine_priv *priv; |
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struct of_phandle_args args; |
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struct snd_soc_dai_link *dai_link; |
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int num_codecs, ret, i; |
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|
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); |
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if (!priv) |
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return -ENOMEM; |
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snd_soc_card_set_drvdata(card, priv); |
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card->dev = dev; |
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|
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priv->gpio_mic_bias = devm_gpiod_get(dev, "mic-bias", GPIOD_OUT_HIGH); |
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if (IS_ERR(priv->gpio_mic_bias)) { |
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dev_err(dev, "Failed to get mic bias gpio\n"); |
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return PTR_ERR(priv->gpio_mic_bias); |
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} |
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ret = snd_soc_of_parse_card_name(card, "model"); |
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if (ret < 0) { |
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dev_err(dev, "Card name is not specified\n"); |
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return ret; |
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} |
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|
|
ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing"); |
|
if (ret < 0) { |
|
dev_err(dev, "Audio routing is not specified or invalid\n"); |
|
return ret; |
|
} |
|
|
|
card->aux_dev[0].dlc.of_node = of_parse_phandle(dev->of_node, |
|
"audio-amplifier", 0); |
|
if (!card->aux_dev[0].dlc.of_node) { |
|
dev_err(dev, "audio-amplifier property invalid or missing\n"); |
|
return -EINVAL; |
|
} |
|
|
|
num_codecs = of_count_phandle_with_args(dev->of_node, "audio-codec", |
|
NULL); |
|
|
|
/* Skip the HDMI link if not specified in DT */ |
|
if (num_codecs > 1) { |
|
card->num_links = ARRAY_SIZE(tm2_dai_links); |
|
cells_name = "#sound-dai-cells"; |
|
} else { |
|
card->num_links = ARRAY_SIZE(tm2_dai_links) - 1; |
|
} |
|
|
|
for (i = 0; i < num_codecs; i++) { |
|
struct of_phandle_args args; |
|
|
|
ret = of_parse_phandle_with_args(dev->of_node, "i2s-controller", |
|
cells_name, i, &args); |
|
if (ret) { |
|
dev_err(dev, "i2s-controller property parse error: %d\n", i); |
|
ret = -EINVAL; |
|
goto dai_node_put; |
|
} |
|
cpu_dai_node[i] = args.np; |
|
|
|
codec_dai_node[i] = of_parse_phandle(dev->of_node, |
|
"audio-codec", i); |
|
if (!codec_dai_node[i]) { |
|
dev_err(dev, "audio-codec property parse error\n"); |
|
ret = -EINVAL; |
|
goto dai_node_put; |
|
} |
|
} |
|
|
|
/* Initialize WM5110 - I2S and HDMI - I2S1 DAI links */ |
|
for_each_card_prelinks(card, i, dai_link) { |
|
unsigned int dai_index = 0; /* WM5110 */ |
|
|
|
dai_link->cpus->name = NULL; |
|
dai_link->platforms->name = NULL; |
|
|
|
if (num_codecs > 1 && i == card->num_links - 1) |
|
dai_index = 1; /* HDMI */ |
|
|
|
dai_link->codecs->of_node = codec_dai_node[dai_index]; |
|
dai_link->cpus->of_node = cpu_dai_node[dai_index]; |
|
dai_link->platforms->of_node = cpu_dai_node[dai_index]; |
|
} |
|
|
|
if (num_codecs > 1) { |
|
/* HDMI DAI link (I2S1) */ |
|
i = card->num_links - 1; |
|
|
|
ret = of_parse_phandle_with_fixed_args(dev->of_node, |
|
"audio-codec", 0, 1, &args); |
|
if (ret) { |
|
dev_err(dev, "audio-codec property parse error\n"); |
|
goto dai_node_put; |
|
} |
|
|
|
ret = snd_soc_get_dai_name(&args, &card->dai_link[i].codecs->dai_name); |
|
if (ret) { |
|
dev_err(dev, "Unable to get codec_dai_name\n"); |
|
goto dai_node_put; |
|
} |
|
} |
|
|
|
ret = devm_snd_soc_register_component(dev, &tm2_component, |
|
tm2_ext_dai, ARRAY_SIZE(tm2_ext_dai)); |
|
if (ret < 0) { |
|
dev_err(dev, "Failed to register component: %d\n", ret); |
|
goto dai_node_put; |
|
} |
|
|
|
ret = devm_snd_soc_register_card(dev, card); |
|
if (ret < 0) { |
|
if (ret != -EPROBE_DEFER) |
|
dev_err(dev, "Failed to register card: %d\n", ret); |
|
goto dai_node_put; |
|
} |
|
|
|
dai_node_put: |
|
for (i = 0; i < num_codecs; i++) { |
|
of_node_put(codec_dai_node[i]); |
|
of_node_put(cpu_dai_node[i]); |
|
} |
|
|
|
of_node_put(card->aux_dev[0].dlc.of_node); |
|
|
|
return ret; |
|
} |
|
|
|
static int tm2_pm_prepare(struct device *dev) |
|
{ |
|
struct snd_soc_card *card = dev_get_drvdata(dev); |
|
|
|
return tm2_stop_sysclk(card); |
|
} |
|
|
|
static void tm2_pm_complete(struct device *dev) |
|
{ |
|
struct snd_soc_card *card = dev_get_drvdata(dev); |
|
|
|
tm2_start_sysclk(card); |
|
} |
|
|
|
static const struct dev_pm_ops tm2_pm_ops = { |
|
.prepare = tm2_pm_prepare, |
|
.suspend = snd_soc_suspend, |
|
.resume = snd_soc_resume, |
|
.complete = tm2_pm_complete, |
|
.freeze = snd_soc_suspend, |
|
.thaw = snd_soc_resume, |
|
.poweroff = snd_soc_poweroff, |
|
.restore = snd_soc_resume, |
|
}; |
|
|
|
static const struct of_device_id tm2_of_match[] = { |
|
{ .compatible = "samsung,tm2-audio" }, |
|
{ }, |
|
}; |
|
MODULE_DEVICE_TABLE(of, tm2_of_match); |
|
|
|
static struct platform_driver tm2_driver = { |
|
.driver = { |
|
.name = "tm2-audio", |
|
.pm = &tm2_pm_ops, |
|
.of_match_table = tm2_of_match, |
|
}, |
|
.probe = tm2_probe, |
|
}; |
|
module_platform_driver(tm2_driver); |
|
|
|
MODULE_AUTHOR("Inha Song <[email protected]>"); |
|
MODULE_DESCRIPTION("ALSA SoC Exynos TM2 Audio Support"); |
|
MODULE_LICENSE("GPL v2");
|
|
|