/* * SiRF audio codec driver * * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. * * Licensed under GPLv2 or later. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "sirf-audio-codec.h" struct sirf_audio_codec { struct clk *clk; struct regmap *regmap; u32 reg_ctrl0, reg_ctrl1; }; static const char * const input_mode_mux[] = {"Single-ended", "Differential"}; static const struct soc_enum input_mode_mux_enum = SOC_ENUM_SINGLE(AUDIO_IC_CODEC_CTRL1, 4, 2, input_mode_mux); static const struct snd_kcontrol_new sirf_audio_codec_input_mode_control = SOC_DAPM_ENUM("Route", input_mode_mux_enum); static const DECLARE_TLV_DB_SCALE(playback_vol_tlv, -12400, 100, 0); static const DECLARE_TLV_DB_SCALE(capture_vol_tlv_prima2, 500, 100, 0); static const DECLARE_TLV_DB_RANGE(capture_vol_tlv_atlas6, 0, 7, TLV_DB_SCALE_ITEM(-100, 100, 0), 0x22, 0x3F, TLV_DB_SCALE_ITEM(700, 100, 0), ); static struct snd_kcontrol_new volume_controls_atlas6[] = { SOC_DOUBLE_TLV("Playback Volume", AUDIO_IC_CODEC_CTRL0, 21, 14, 0x7F, 0, playback_vol_tlv), SOC_DOUBLE_TLV("Capture Volume", AUDIO_IC_CODEC_CTRL1, 16, 10, 0x3F, 0, capture_vol_tlv_atlas6), }; static struct snd_kcontrol_new volume_controls_prima2[] = { SOC_DOUBLE_TLV("Speaker Volume", AUDIO_IC_CODEC_CTRL0, 21, 14, 0x7F, 0, playback_vol_tlv), SOC_DOUBLE_TLV("Capture Volume", AUDIO_IC_CODEC_CTRL1, 15, 10, 0x1F, 0, capture_vol_tlv_prima2), }; static struct snd_kcontrol_new left_input_path_controls[] = { SOC_DAPM_SINGLE("Line Left Switch", AUDIO_IC_CODEC_CTRL1, 6, 1, 0), SOC_DAPM_SINGLE("Mic Left Switch", AUDIO_IC_CODEC_CTRL1, 3, 1, 0), }; static struct snd_kcontrol_new right_input_path_controls[] = { SOC_DAPM_SINGLE("Line Right Switch", AUDIO_IC_CODEC_CTRL1, 5, 1, 0), SOC_DAPM_SINGLE("Mic Right Switch", AUDIO_IC_CODEC_CTRL1, 2, 1, 0), }; static struct snd_kcontrol_new left_dac_to_hp_left_amp_switch_control = SOC_DAPM_SINGLE("Switch", AUDIO_IC_CODEC_CTRL0, 9, 1, 0); static struct snd_kcontrol_new left_dac_to_hp_right_amp_switch_control = SOC_DAPM_SINGLE("Switch", AUDIO_IC_CODEC_CTRL0, 8, 1, 0); static struct snd_kcontrol_new right_dac_to_hp_left_amp_switch_control = SOC_DAPM_SINGLE("Switch", AUDIO_IC_CODEC_CTRL0, 7, 1, 0); static struct snd_kcontrol_new right_dac_to_hp_right_amp_switch_control = SOC_DAPM_SINGLE("Switch", AUDIO_IC_CODEC_CTRL0, 6, 1, 0); static struct snd_kcontrol_new left_dac_to_speaker_lineout_switch_control = SOC_DAPM_SINGLE("Switch", AUDIO_IC_CODEC_CTRL0, 11, 1, 0); static struct snd_kcontrol_new right_dac_to_speaker_lineout_switch_control = SOC_DAPM_SINGLE("Switch", AUDIO_IC_CODEC_CTRL0, 10, 1, 0); /* After enable adc, Delay 200ms to avoid pop noise */ static int adc_enable_delay_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { switch (event) { case SND_SOC_DAPM_POST_PMU: msleep(200); break; default: break; } return 0; } static void enable_and_reset_codec(struct regmap *regmap, u32 codec_enable_bits, u32 codec_reset_bits) { regmap_update_bits(regmap, AUDIO_IC_CODEC_CTRL1, codec_enable_bits | codec_reset_bits, codec_enable_bits); msleep(20); regmap_update_bits(regmap, AUDIO_IC_CODEC_CTRL1, codec_reset_bits, codec_reset_bits); } static int atlas6_codec_enable_and_reset_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { #define ATLAS6_CODEC_ENABLE_BITS (1 << 29) #define ATLAS6_CODEC_RESET_BITS (1 << 28) struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct sirf_audio_codec *sirf_audio_codec = snd_soc_component_get_drvdata(component); switch (event) { case SND_SOC_DAPM_PRE_PMU: enable_and_reset_codec(sirf_audio_codec->regmap, ATLAS6_CODEC_ENABLE_BITS, ATLAS6_CODEC_RESET_BITS); break; case SND_SOC_DAPM_POST_PMD: regmap_update_bits(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL1, ATLAS6_CODEC_ENABLE_BITS, 0); break; default: break; } return 0; } static int prima2_codec_enable_and_reset_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { #define PRIMA2_CODEC_ENABLE_BITS (1 << 27) #define PRIMA2_CODEC_RESET_BITS (1 << 26) struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct sirf_audio_codec *sirf_audio_codec = snd_soc_component_get_drvdata(component); switch (event) { case SND_SOC_DAPM_POST_PMU: enable_and_reset_codec(sirf_audio_codec->regmap, PRIMA2_CODEC_ENABLE_BITS, PRIMA2_CODEC_RESET_BITS); break; case SND_SOC_DAPM_POST_PMD: regmap_update_bits(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL1, PRIMA2_CODEC_ENABLE_BITS, 0); break; default: break; } return 0; } static const struct snd_soc_dapm_widget atlas6_output_driver_dapm_widgets[] = { SND_SOC_DAPM_OUT_DRV("HP Left Driver", AUDIO_IC_CODEC_CTRL1, 25, 0, NULL, 0), SND_SOC_DAPM_OUT_DRV("HP Right Driver", AUDIO_IC_CODEC_CTRL1, 26, 0, NULL, 0), SND_SOC_DAPM_OUT_DRV("Speaker Driver", AUDIO_IC_CODEC_CTRL1, 27, 0, NULL, 0), }; static const struct snd_soc_dapm_widget prima2_output_driver_dapm_widgets[] = { SND_SOC_DAPM_OUT_DRV("HP Left Driver", AUDIO_IC_CODEC_CTRL1, 23, 0, NULL, 0), SND_SOC_DAPM_OUT_DRV("HP Right Driver", AUDIO_IC_CODEC_CTRL1, 24, 0, NULL, 0), SND_SOC_DAPM_OUT_DRV("Speaker Driver", AUDIO_IC_CODEC_CTRL1, 25, 0, NULL, 0), }; static const struct snd_soc_dapm_widget atlas6_codec_clock_dapm_widget = SND_SOC_DAPM_SUPPLY("codecclk", SND_SOC_NOPM, 0, 0, atlas6_codec_enable_and_reset_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD); static const struct snd_soc_dapm_widget prima2_codec_clock_dapm_widget = SND_SOC_DAPM_SUPPLY("codecclk", SND_SOC_NOPM, 0, 0, prima2_codec_enable_and_reset_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD); static const struct snd_soc_dapm_widget sirf_audio_codec_dapm_widgets[] = { SND_SOC_DAPM_DAC("DAC left", NULL, AUDIO_IC_CODEC_CTRL0, 1, 0), SND_SOC_DAPM_DAC("DAC right", NULL, AUDIO_IC_CODEC_CTRL0, 0, 0), SND_SOC_DAPM_SWITCH("Left dac to hp left amp", SND_SOC_NOPM, 0, 0, &left_dac_to_hp_left_amp_switch_control), SND_SOC_DAPM_SWITCH("Left dac to hp right amp", SND_SOC_NOPM, 0, 0, &left_dac_to_hp_right_amp_switch_control), SND_SOC_DAPM_SWITCH("Right dac to hp left amp", SND_SOC_NOPM, 0, 0, &right_dac_to_hp_left_amp_switch_control), SND_SOC_DAPM_SWITCH("Right dac to hp right amp", SND_SOC_NOPM, 0, 0, &right_dac_to_hp_right_amp_switch_control), SND_SOC_DAPM_OUT_DRV("HP amp left driver", AUDIO_IC_CODEC_CTRL0, 3, 0, NULL, 0), SND_SOC_DAPM_OUT_DRV("HP amp right driver", AUDIO_IC_CODEC_CTRL0, 3, 0, NULL, 0), SND_SOC_DAPM_SWITCH("Left dac to speaker lineout", SND_SOC_NOPM, 0, 0, &left_dac_to_speaker_lineout_switch_control), SND_SOC_DAPM_SWITCH("Right dac to speaker lineout", SND_SOC_NOPM, 0, 0, &right_dac_to_speaker_lineout_switch_control), SND_SOC_DAPM_OUT_DRV("Speaker amp driver", AUDIO_IC_CODEC_CTRL0, 4, 0, NULL, 0), SND_SOC_DAPM_OUTPUT("HPOUTL"), SND_SOC_DAPM_OUTPUT("HPOUTR"), SND_SOC_DAPM_OUTPUT("SPKOUT"), SND_SOC_DAPM_ADC_E("ADC left", NULL, AUDIO_IC_CODEC_CTRL1, 8, 0, adc_enable_delay_event, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_ADC_E("ADC right", NULL, AUDIO_IC_CODEC_CTRL1, 7, 0, adc_enable_delay_event, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_MIXER("Left PGA mixer", AUDIO_IC_CODEC_CTRL1, 1, 0, &left_input_path_controls[0], ARRAY_SIZE(left_input_path_controls)), SND_SOC_DAPM_MIXER("Right PGA mixer", AUDIO_IC_CODEC_CTRL1, 0, 0, &right_input_path_controls[0], ARRAY_SIZE(right_input_path_controls)), SND_SOC_DAPM_MUX("Mic input mode mux", SND_SOC_NOPM, 0, 0, &sirf_audio_codec_input_mode_control), SND_SOC_DAPM_MICBIAS("Mic Bias", AUDIO_IC_CODEC_PWR, 3, 0), SND_SOC_DAPM_INPUT("MICIN1"), SND_SOC_DAPM_INPUT("MICIN2"), SND_SOC_DAPM_INPUT("LINEIN1"), SND_SOC_DAPM_INPUT("LINEIN2"), SND_SOC_DAPM_SUPPLY("HSL Phase Opposite", AUDIO_IC_CODEC_CTRL0, 30, 0, NULL, 0), }; static const struct snd_soc_dapm_route sirf_audio_codec_map[] = { {"SPKOUT", NULL, "Speaker Driver"}, {"Speaker Driver", NULL, "Speaker amp driver"}, {"Speaker amp driver", NULL, "Left dac to speaker lineout"}, {"Speaker amp driver", NULL, "Right dac to speaker lineout"}, {"Left dac to speaker lineout", "Switch", "DAC left"}, {"Right dac to speaker lineout", "Switch", "DAC right"}, {"HPOUTL", NULL, "HP Left Driver"}, {"HPOUTR", NULL, "HP Right Driver"}, {"HP Left Driver", NULL, "HP amp left driver"}, {"HP Right Driver", NULL, "HP amp right driver"}, {"HP amp left driver", NULL, "Right dac to hp left amp"}, {"HP amp right driver", NULL , "Right dac to hp right amp"}, {"HP amp left driver", NULL, "Left dac to hp left amp"}, {"HP amp right driver", NULL , "Right dac to hp right amp"}, {"Right dac to hp left amp", "Switch", "DAC left"}, {"Right dac to hp right amp", "Switch", "DAC right"}, {"Left dac to hp left amp", "Switch", "DAC left"}, {"Left dac to hp right amp", "Switch", "DAC right"}, {"DAC left", NULL, "codecclk"}, {"DAC right", NULL, "codecclk"}, {"DAC left", NULL, "Playback"}, {"DAC right", NULL, "Playback"}, {"DAC left", NULL, "HSL Phase Opposite"}, {"DAC right", NULL, "HSL Phase Opposite"}, {"Capture", NULL, "ADC left"}, {"Capture", NULL, "ADC right"}, {"ADC left", NULL, "codecclk"}, {"ADC right", NULL, "codecclk"}, {"ADC left", NULL, "Left PGA mixer"}, {"ADC right", NULL, "Right PGA mixer"}, {"Left PGA mixer", "Line Left Switch", "LINEIN2"}, {"Right PGA mixer", "Line Right Switch", "LINEIN1"}, {"Left PGA mixer", "Mic Left Switch", "MICIN2"}, {"Right PGA mixer", "Mic Right Switch", "Mic input mode mux"}, {"Mic input mode mux", "Single-ended", "MICIN1"}, {"Mic input mode mux", "Differential", "MICIN1"}, }; static void sirf_audio_codec_tx_enable(struct sirf_audio_codec *sirf_audio_codec) { regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_TXFIFO_OP, AUDIO_FIFO_RESET, AUDIO_FIFO_RESET); regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_TXFIFO_OP, AUDIO_FIFO_RESET, ~AUDIO_FIFO_RESET); regmap_write(sirf_audio_codec->regmap, AUDIO_PORT_IC_TXFIFO_INT_MSK, 0); regmap_write(sirf_audio_codec->regmap, AUDIO_PORT_IC_TXFIFO_OP, 0); regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_TXFIFO_OP, AUDIO_FIFO_START, AUDIO_FIFO_START); regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_CODEC_TX_CTRL, IC_TX_ENABLE, IC_TX_ENABLE); } static void sirf_audio_codec_tx_disable(struct sirf_audio_codec *sirf_audio_codec) { regmap_write(sirf_audio_codec->regmap, AUDIO_PORT_IC_TXFIFO_OP, 0); regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_CODEC_TX_CTRL, IC_TX_ENABLE, ~IC_TX_ENABLE); } static void sirf_audio_codec_rx_enable(struct sirf_audio_codec *sirf_audio_codec, int channels) { regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_RXFIFO_OP, AUDIO_FIFO_RESET, AUDIO_FIFO_RESET); regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_RXFIFO_OP, AUDIO_FIFO_RESET, ~AUDIO_FIFO_RESET); regmap_write(sirf_audio_codec->regmap, AUDIO_PORT_IC_RXFIFO_INT_MSK, 0); regmap_write(sirf_audio_codec->regmap, AUDIO_PORT_IC_RXFIFO_OP, 0); regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_RXFIFO_OP, AUDIO_FIFO_START, AUDIO_FIFO_START); if (channels == 1) regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_CODEC_RX_CTRL, IC_RX_ENABLE_MONO, IC_RX_ENABLE_MONO); else regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_CODEC_RX_CTRL, IC_RX_ENABLE_STEREO, IC_RX_ENABLE_STEREO); } static void sirf_audio_codec_rx_disable(struct sirf_audio_codec *sirf_audio_codec) { regmap_update_bits(sirf_audio_codec->regmap, AUDIO_PORT_IC_CODEC_RX_CTRL, IC_RX_ENABLE_STEREO, ~IC_RX_ENABLE_STEREO); } static int sirf_audio_codec_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct snd_soc_component *component = dai->component; struct sirf_audio_codec *sirf_audio_codec = snd_soc_component_get_drvdata(component); int playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; /* * This is a workaround, When stop playback, * need disable HP amp, avoid the current noise. */ switch (cmd) { case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: if (playback) { snd_soc_component_update_bits(component, AUDIO_IC_CODEC_CTRL0, IC_HSLEN | IC_HSREN, 0); sirf_audio_codec_tx_disable(sirf_audio_codec); } else sirf_audio_codec_rx_disable(sirf_audio_codec); break; case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: if (playback) { sirf_audio_codec_tx_enable(sirf_audio_codec); snd_soc_component_update_bits(component, AUDIO_IC_CODEC_CTRL0, IC_HSLEN | IC_HSREN, IC_HSLEN | IC_HSREN); } else sirf_audio_codec_rx_enable(sirf_audio_codec, substream->runtime->channels); break; default: return -EINVAL; } return 0; } static const struct snd_soc_dai_ops sirf_audio_codec_dai_ops = { .trigger = sirf_audio_codec_trigger, }; static struct snd_soc_dai_driver sirf_audio_codec_dai = { .name = "sirf-audio-codec", .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .ops = &sirf_audio_codec_dai_ops, }; static int sirf_audio_codec_probe(struct snd_soc_component *component) { struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); pm_runtime_enable(component->dev); if (of_device_is_compatible(component->dev->of_node, "sirf,prima2-audio-codec")) { snd_soc_dapm_new_controls(dapm, prima2_output_driver_dapm_widgets, ARRAY_SIZE(prima2_output_driver_dapm_widgets)); snd_soc_dapm_new_controls(dapm, &prima2_codec_clock_dapm_widget, 1); return snd_soc_add_component_controls(component, volume_controls_prima2, ARRAY_SIZE(volume_controls_prima2)); } if (of_device_is_compatible(component->dev->of_node, "sirf,atlas6-audio-codec")) { snd_soc_dapm_new_controls(dapm, atlas6_output_driver_dapm_widgets, ARRAY_SIZE(atlas6_output_driver_dapm_widgets)); snd_soc_dapm_new_controls(dapm, &atlas6_codec_clock_dapm_widget, 1); return snd_soc_add_component_controls(component, volume_controls_atlas6, ARRAY_SIZE(volume_controls_atlas6)); } return -EINVAL; } static void sirf_audio_codec_remove(struct snd_soc_component *component) { pm_runtime_disable(component->dev); } static const struct snd_soc_component_driver soc_codec_device_sirf_audio_codec = { .probe = sirf_audio_codec_probe, .remove = sirf_audio_codec_remove, .dapm_widgets = sirf_audio_codec_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(sirf_audio_codec_dapm_widgets), .dapm_routes = sirf_audio_codec_map, .num_dapm_routes = ARRAY_SIZE(sirf_audio_codec_map), .use_pmdown_time = 1, .endianness = 1, .non_legacy_dai_naming = 1, }; static const struct of_device_id sirf_audio_codec_of_match[] = { { .compatible = "sirf,prima2-audio-codec" }, { .compatible = "sirf,atlas6-audio-codec" }, {} }; MODULE_DEVICE_TABLE(of, sirf_audio_codec_of_match); static const struct regmap_config sirf_audio_codec_regmap_config = { .reg_bits = 32, .reg_stride = 4, .val_bits = 32, .max_register = AUDIO_PORT_IC_RXFIFO_INT_MSK, .cache_type = REGCACHE_NONE, }; static int sirf_audio_codec_driver_probe(struct platform_device *pdev) { int ret; struct sirf_audio_codec *sirf_audio_codec; void __iomem *base; struct resource *mem_res; sirf_audio_codec = devm_kzalloc(&pdev->dev, sizeof(struct sirf_audio_codec), GFP_KERNEL); if (!sirf_audio_codec) return -ENOMEM; platform_set_drvdata(pdev, sirf_audio_codec); mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); base = devm_ioremap_resource(&pdev->dev, mem_res); if (IS_ERR(base)) return PTR_ERR(base); sirf_audio_codec->regmap = devm_regmap_init_mmio(&pdev->dev, base, &sirf_audio_codec_regmap_config); if (IS_ERR(sirf_audio_codec->regmap)) return PTR_ERR(sirf_audio_codec->regmap); sirf_audio_codec->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(sirf_audio_codec->clk)) { dev_err(&pdev->dev, "Get clock failed.\n"); return PTR_ERR(sirf_audio_codec->clk); } ret = clk_prepare_enable(sirf_audio_codec->clk); if (ret) { dev_err(&pdev->dev, "Enable clock failed.\n"); return ret; } ret = devm_snd_soc_register_component(&(pdev->dev), &soc_codec_device_sirf_audio_codec, &sirf_audio_codec_dai, 1); if (ret) { dev_err(&pdev->dev, "Register Audio Codec dai failed.\n"); goto err_clk_put; } /* * Always open charge pump, if not, when the charge pump closed the * adc will not stable */ regmap_update_bits(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL0, IC_CPFREQ, IC_CPFREQ); if (of_device_is_compatible(pdev->dev.of_node, "sirf,atlas6-audio-codec")) regmap_update_bits(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL0, IC_CPEN, IC_CPEN); return 0; err_clk_put: clk_disable_unprepare(sirf_audio_codec->clk); return ret; } static int sirf_audio_codec_driver_remove(struct platform_device *pdev) { struct sirf_audio_codec *sirf_audio_codec = platform_get_drvdata(pdev); clk_disable_unprepare(sirf_audio_codec->clk); return 0; } #ifdef CONFIG_PM_SLEEP static int sirf_audio_codec_suspend(struct device *dev) { struct sirf_audio_codec *sirf_audio_codec = dev_get_drvdata(dev); regmap_read(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL0, &sirf_audio_codec->reg_ctrl0); regmap_read(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL1, &sirf_audio_codec->reg_ctrl1); clk_disable_unprepare(sirf_audio_codec->clk); return 0; } static int sirf_audio_codec_resume(struct device *dev) { struct sirf_audio_codec *sirf_audio_codec = dev_get_drvdata(dev); int ret; ret = clk_prepare_enable(sirf_audio_codec->clk); if (ret) return ret; regmap_write(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL0, sirf_audio_codec->reg_ctrl0); regmap_write(sirf_audio_codec->regmap, AUDIO_IC_CODEC_CTRL1, sirf_audio_codec->reg_ctrl1); return 0; } #endif static const struct dev_pm_ops sirf_audio_codec_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(sirf_audio_codec_suspend, sirf_audio_codec_resume) }; static struct platform_driver sirf_audio_codec_driver = { .driver = { .name = "sirf-audio-codec", .of_match_table = sirf_audio_codec_of_match, .pm = &sirf_audio_codec_pm_ops, }, .probe = sirf_audio_codec_driver_probe, .remove = sirf_audio_codec_driver_remove, }; module_platform_driver(sirf_audio_codec_driver); MODULE_DESCRIPTION("SiRF audio codec driver"); MODULE_AUTHOR("RongJun Ying "); MODULE_LICENSE("GPL v2");