diff options
Diffstat (limited to 'sound/soc/codecs/sirf-audio-codec.c')
| -rw-r--r-- | sound/soc/codecs/sirf-audio-codec.c | 575 |
1 files changed, 0 insertions, 575 deletions
diff --git a/sound/soc/codecs/sirf-audio-codec.c b/sound/soc/codecs/sirf-audio-codec.c deleted file mode 100644 index a061d78473ac..000000000000 --- a/sound/soc/codecs/sirf-audio-codec.c +++ /dev/null @@ -1,575 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * SiRF audio codec driver - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/pm_runtime.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/clk.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/regmap.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/initval.h> -#include <sound/tlv.h> -#include <sound/soc.h> -#include <sound/dmaengine_pcm.h> - -#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; - - 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); - - base = devm_platform_ioremap_resource(pdev, 0); - 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 <Rongjun.Ying@csr.com>"); -MODULE_LICENSE("GPL v2"); |