diff options
Diffstat (limited to 'sound/soc/codecs/cs35l41.c')
| -rw-r--r-- | sound/soc/codecs/cs35l41.c | 893 |
1 files changed, 526 insertions, 367 deletions
diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c index 9c4d481f7614..77a017694645 100644 --- a/sound/soc/codecs/cs35l41.c +++ b/sound/soc/codecs/cs35l41.c @@ -13,8 +13,8 @@ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/of_device.h> +#include <linux/pm_runtime.h> #include <linux/property.h> -#include <linux/slab.h> #include <sound/initval.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -151,24 +151,6 @@ static const struct cs35l41_fs_mon_config cs35l41_fs_mon[] = { { 6144000, 16, 24 }, }; -static const unsigned char cs35l41_bst_k1_table[4][5] = { - { 0x24, 0x32, 0x32, 0x4F, 0x57 }, - { 0x24, 0x32, 0x32, 0x4F, 0x57 }, - { 0x40, 0x32, 0x32, 0x4F, 0x57 }, - { 0x40, 0x32, 0x32, 0x4F, 0x57 } -}; - -static const unsigned char cs35l41_bst_k2_table[4][5] = { - { 0x24, 0x49, 0x66, 0xA3, 0xEA }, - { 0x24, 0x49, 0x66, 0xA3, 0xEA }, - { 0x48, 0x49, 0x66, 0xA3, 0xEA }, - { 0x48, 0x49, 0x66, 0xA3, 0xEA } -}; - -static const unsigned char cs35l41_bst_slope_table[4] = { - 0x75, 0x6B, 0x3B, 0x28 -}; - static int cs35l41_get_fs_mon_config_index(int freq) { int i; @@ -197,6 +179,134 @@ static SOC_ENUM_SINGLE_DECL(pcm_sft_ramp, CS35L41_AMP_DIG_VOL_CTRL, 0, cs35l41_pcm_sftramp_text); +static int cs35l41_dsp_preload_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct cs35l41_private *cs35l41 = snd_soc_component_get_drvdata(component); + int ret; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + if (cs35l41->dsp.cs_dsp.booted) + return 0; + + return wm_adsp_early_event(w, kcontrol, event); + case SND_SOC_DAPM_PRE_PMD: + if (cs35l41->dsp.preloaded) + return 0; + + if (cs35l41->dsp.cs_dsp.running) { + ret = wm_adsp_event(w, kcontrol, event); + if (ret) + return ret; + } + + return wm_adsp_early_event(w, kcontrol, event); + default: + return 0; + } +} + +static bool cs35l41_check_cspl_mbox_sts(enum cs35l41_cspl_mbox_cmd cmd, + enum cs35l41_cspl_mbox_status sts) +{ + switch (cmd) { + case CSPL_MBOX_CMD_NONE: + case CSPL_MBOX_CMD_UNKNOWN_CMD: + return true; + case CSPL_MBOX_CMD_PAUSE: + case CSPL_MBOX_CMD_OUT_OF_HIBERNATE: + return (sts == CSPL_MBOX_STS_PAUSED); + case CSPL_MBOX_CMD_RESUME: + return (sts == CSPL_MBOX_STS_RUNNING); + case CSPL_MBOX_CMD_REINIT: + return (sts == CSPL_MBOX_STS_RUNNING); + case CSPL_MBOX_CMD_STOP_PRE_REINIT: + return (sts == CSPL_MBOX_STS_RDY_FOR_REINIT); + default: + return false; + } +} + +static int cs35l41_set_cspl_mbox_cmd(struct cs35l41_private *cs35l41, + enum cs35l41_cspl_mbox_cmd cmd) +{ + unsigned int sts = 0, i; + int ret; + + // Set mailbox cmd + ret = regmap_write(cs35l41->regmap, CS35L41_DSP_VIRT1_MBOX_1, cmd); + if (ret < 0) { + if (cmd != CSPL_MBOX_CMD_OUT_OF_HIBERNATE) + dev_err(cs35l41->dev, "Failed to write MBOX: %d\n", ret); + return ret; + } + + // Read mailbox status and verify it is appropriate for the given cmd + for (i = 0; i < 5; i++) { + usleep_range(1000, 1100); + + ret = regmap_read(cs35l41->regmap, CS35L41_DSP_MBOX_2, &sts); + if (ret < 0) { + dev_err(cs35l41->dev, "Failed to read MBOX STS: %d\n", ret); + continue; + } + + if (!cs35l41_check_cspl_mbox_sts(cmd, sts)) { + dev_dbg(cs35l41->dev, + "[%u] cmd %u returned invalid sts %u", + i, cmd, sts); + } else { + return 0; + } + } + + dev_err(cs35l41->dev, + "Failed to set mailbox cmd %u (status %u)\n", + cmd, sts); + + return -ENOMSG; +} + +static int cs35l41_dsp_audio_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct cs35l41_private *cs35l41 = snd_soc_component_get_drvdata(component); + unsigned int fw_status; + int ret; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + if (!cs35l41->dsp.cs_dsp.running) + return wm_adsp_event(w, kcontrol, event); + + ret = regmap_read(cs35l41->regmap, CS35L41_DSP_MBOX_2, &fw_status); + if (ret < 0) { + dev_err(cs35l41->dev, + "Failed to read firmware status: %d\n", ret); + return ret; + } + + switch (fw_status) { + case CSPL_MBOX_STS_RUNNING: + case CSPL_MBOX_STS_PAUSED: + break; + default: + dev_err(cs35l41->dev, "Firmware status is invalid: %u\n", + fw_status); + return -EINVAL; + } + + return cs35l41_set_cspl_mbox_cmd(cs35l41, CSPL_MBOX_CMD_RESUME); + case SND_SOC_DAPM_PRE_PMD: + return cs35l41_set_cspl_mbox_cmd(cs35l41, CSPL_MBOX_CMD_PAUSE); + default: + return 0; + } +} + static const char * const cs35l41_pcm_source_texts[] = {"ASP", "DSP"}; static const unsigned int cs35l41_pcm_source_values[] = {0x08, 0x32}; static SOC_VALUE_ENUM_SINGLE_DECL(cs35l41_pcm_source_enum, @@ -255,6 +365,24 @@ static SOC_VALUE_ENUM_SINGLE_DECL(cs35l41_asptx4_enum, static const struct snd_kcontrol_new asp_tx4_mux = SOC_DAPM_ENUM("ASPTX4 SRC", cs35l41_asptx4_enum); +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l41_dsprx1_enum, + CS35L41_DSP1_RX1_SRC, + 0, CS35L41_ASP_SOURCE_MASK, + cs35l41_tx_input_texts, + cs35l41_tx_input_values); + +static const struct snd_kcontrol_new dsp_rx1_mux = + SOC_DAPM_ENUM("DSPRX1 SRC", cs35l41_dsprx1_enum); + +static SOC_VALUE_ENUM_SINGLE_DECL(cs35l41_dsprx2_enum, + CS35L41_DSP1_RX2_SRC, + 0, CS35L41_ASP_SOURCE_MASK, + cs35l41_tx_input_texts, + cs35l41_tx_input_values); + +static const struct snd_kcontrol_new dsp_rx2_mux = + SOC_DAPM_ENUM("DSPRX2 SRC", cs35l41_dsprx2_enum); + static const struct snd_kcontrol_new cs35l41_aud_controls[] = { SOC_SINGLE_SX_TLV("Digital PCM Volume", CS35L41_AMP_DIG_VOL_CTRL, 3, 0x4CF, 0x391, dig_vol_tlv), @@ -282,130 +410,10 @@ static const struct snd_kcontrol_new cs35l41_aud_controls[] = { CS35L41_AMP_INV_PCM_SHIFT, 1, 0), SOC_SINGLE("Amp Gain ZC", CS35L41_AMP_GAIN_CTRL, CS35L41_AMP_GAIN_ZC_SHIFT, 1, 0), + WM_ADSP2_PRELOAD_SWITCH("DSP1", 1), + WM_ADSP_FW_CONTROL("DSP1", 0), }; -static const struct cs35l41_otp_map_element_t *cs35l41_find_otp_map(u32 otp_id) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(cs35l41_otp_map_map); i++) { - if (cs35l41_otp_map_map[i].id == otp_id) - return &cs35l41_otp_map_map[i]; - } - - return NULL; -} - -static int cs35l41_otp_unpack(void *data) -{ - const struct cs35l41_otp_map_element_t *otp_map_match; - const struct cs35l41_otp_packed_element_t *otp_map; - struct cs35l41_private *cs35l41 = data; - int bit_offset, word_offset, ret, i; - unsigned int bit_sum = 8; - u32 otp_val, otp_id_reg; - u32 *otp_mem; - - otp_mem = kmalloc_array(CS35L41_OTP_SIZE_WORDS, sizeof(*otp_mem), GFP_KERNEL); - if (!otp_mem) - return -ENOMEM; - - ret = regmap_read(cs35l41->regmap, CS35L41_OTPID, &otp_id_reg); - if (ret < 0) { - dev_err(cs35l41->dev, "Read OTP ID failed: %d\n", ret); - goto err_otp_unpack; - } - - otp_map_match = cs35l41_find_otp_map(otp_id_reg); - - if (!otp_map_match) { - dev_err(cs35l41->dev, "OTP Map matching ID %d not found\n", - otp_id_reg); - ret = -EINVAL; - goto err_otp_unpack; - } - - ret = regmap_bulk_read(cs35l41->regmap, CS35L41_OTP_MEM0, otp_mem, - CS35L41_OTP_SIZE_WORDS); - if (ret < 0) { - dev_err(cs35l41->dev, "Read OTP Mem failed: %d\n", ret); - goto err_otp_unpack; - } - - otp_map = otp_map_match->map; - - bit_offset = otp_map_match->bit_offset; - word_offset = otp_map_match->word_offset; - - ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x00000055); - if (ret < 0) { - dev_err(cs35l41->dev, "Write Unlock key failed 1/2: %d\n", ret); - goto err_otp_unpack; - } - ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x000000AA); - if (ret < 0) { - dev_err(cs35l41->dev, "Write Unlock key failed 2/2: %d\n", ret); - goto err_otp_unpack; - } - - for (i = 0; i < otp_map_match->num_elements; i++) { - dev_dbg(cs35l41->dev, - "bitoffset= %d, word_offset=%d, bit_sum mod 32=%d\n", - bit_offset, word_offset, bit_sum % 32); - if (bit_offset + otp_map[i].size - 1 >= 32) { - otp_val = (otp_mem[word_offset] & - GENMASK(31, bit_offset)) >> - bit_offset; - otp_val |= (otp_mem[++word_offset] & - GENMASK(bit_offset + - otp_map[i].size - 33, 0)) << - (32 - bit_offset); - bit_offset += otp_map[i].size - 32; - } else { - otp_val = (otp_mem[word_offset] & - GENMASK(bit_offset + otp_map[i].size - 1, - bit_offset)) >> bit_offset; - bit_offset += otp_map[i].size; - } - bit_sum += otp_map[i].size; - - if (bit_offset == 32) { - bit_offset = 0; - word_offset++; - } - - if (otp_map[i].reg != 0) { - ret = regmap_update_bits(cs35l41->regmap, - otp_map[i].reg, - GENMASK(otp_map[i].shift + - otp_map[i].size - 1, - otp_map[i].shift), - otp_val << otp_map[i].shift); - if (ret < 0) { - dev_err(cs35l41->dev, "Write OTP val failed: %d\n", - ret); - goto err_otp_unpack; - } - } - } - - ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x000000CC); - if (ret < 0) { - dev_err(cs35l41->dev, "Write Lock key failed 1/2: %d\n", ret); - goto err_otp_unpack; - } - ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x00000033); - if (ret < 0) { - dev_err(cs35l41->dev, "Write Lock key failed 2/2: %d\n", ret); - goto err_otp_unpack; - } - ret = 0; - -err_otp_unpack: - kfree(otp_mem); - return ret; -} - static irqreturn_t cs35l41_irq(int irq, void *data) { struct cs35l41_private *cs35l41 = data; @@ -414,6 +422,8 @@ static irqreturn_t cs35l41_irq(int irq, void *data) int ret = IRQ_NONE; unsigned int i; + pm_runtime_get_sync(cs35l41->dev); + for (i = 0; i < ARRAY_SIZE(status); i++) { regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS1 + (i * CS35L41_REGSTRIDE), @@ -426,7 +436,7 @@ static irqreturn_t cs35l41_irq(int irq, void *data) /* Check to see if unmasked bits are active */ if (!(status[0] & ~masks[0]) && !(status[1] & ~masks[1]) && !(status[2] & ~masks[2]) && !(status[3] & ~masks[3])) - return IRQ_NONE; + goto done; if (status[3] & CS35L41_OTP_BOOT_DONE) { regmap_update_bits(cs35l41->regmap, CS35L41_IRQ1_MASK4, @@ -531,23 +541,27 @@ static irqreturn_t cs35l41_irq(int irq, void *data) ret = IRQ_HANDLED; } +done: + pm_runtime_mark_last_busy(cs35l41->dev); + pm_runtime_put_autosuspend(cs35l41->dev); + return ret; } static const struct reg_sequence cs35l41_pup_patch[] = { - { 0x00000040, 0x00000055 }, - { 0x00000040, 0x000000AA }, + { CS35L41_TEST_KEY_CTL, 0x00000055 }, + { CS35L41_TEST_KEY_CTL, 0x000000AA }, { 0x00002084, 0x002F1AA0 }, - { 0x00000040, 0x000000CC }, - { 0x00000040, 0x00000033 }, + { CS35L41_TEST_KEY_CTL, 0x000000CC }, + { CS35L41_TEST_KEY_CTL, 0x00000033 }, }; static const struct reg_sequence cs35l41_pdn_patch[] = { - { 0x00000040, 0x00000055 }, - { 0x00000040, 0x000000AA }, + { CS35L41_TEST_KEY_CTL, 0x00000055 }, + { CS35L41_TEST_KEY_CTL, 0x000000AA }, { 0x00002084, 0x002F1AA3 }, - { 0x00000040, 0x000000CC }, - { 0x00000040, 0x00000033 }, + { CS35L41_TEST_KEY_CTL, 0x000000CC }, + { CS35L41_TEST_KEY_CTL, 0x00000033 }, }; static int cs35l41_main_amp_event(struct snd_soc_dapm_widget *w, @@ -596,6 +610,14 @@ static int cs35l41_main_amp_event(struct snd_soc_dapm_widget *w, } static const struct snd_soc_dapm_widget cs35l41_dapm_widgets[] = { + SND_SOC_DAPM_SPK("DSP1 Preload", NULL), + SND_SOC_DAPM_SUPPLY_S("DSP1 Preloader", 100, SND_SOC_NOPM, 0, 0, + cs35l41_dsp_preload_ev, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_OUT_DRV_E("DSP1", SND_SOC_NOPM, 0, 0, NULL, 0, + cs35l41_dsp_audio_ev, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_OUTPUT("SPK"), SND_SOC_DAPM_AIF_IN("ASPRX1", NULL, 0, CS35L41_SP_ENABLES, 16, 0), @@ -611,11 +633,18 @@ static const struct snd_soc_dapm_widget cs35l41_dapm_widgets[] = { SND_SOC_DAPM_SIGGEN("VBST"), SND_SOC_DAPM_SIGGEN("TEMP"), - SND_SOC_DAPM_ADC("VMON ADC", NULL, CS35L41_PWR_CTRL2, 12, 0), - SND_SOC_DAPM_ADC("IMON ADC", NULL, CS35L41_PWR_CTRL2, 13, 0), - SND_SOC_DAPM_ADC("VPMON ADC", NULL, CS35L41_PWR_CTRL2, 8, 0), - SND_SOC_DAPM_ADC("VBSTMON ADC", NULL, CS35L41_PWR_CTRL2, 9, 0), - SND_SOC_DAPM_ADC("TEMPMON ADC", NULL, CS35L41_PWR_CTRL2, 10, 0), + SND_SOC_DAPM_SUPPLY("VMON", CS35L41_PWR_CTRL2, 12, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("IMON", CS35L41_PWR_CTRL2, 13, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("VPMON", CS35L41_PWR_CTRL2, 8, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("VBSTMON", CS35L41_PWR_CTRL2, 9, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("TEMPMON", CS35L41_PWR_CTRL2, 10, 0, NULL, 0), + + SND_SOC_DAPM_ADC("VMON ADC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_ADC("IMON ADC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_ADC("VPMON ADC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_ADC("VBSTMON ADC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_ADC("TEMPMON ADC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_ADC("CLASS H", NULL, CS35L41_PWR_CTRL3, 4, 0), SND_SOC_DAPM_OUT_DRV_E("Main AMP", CS35L41_PWR_CTRL2, 0, 0, NULL, 0, @@ -626,33 +655,51 @@ static const struct snd_soc_dapm_widget cs35l41_dapm_widgets[] = { SND_SOC_DAPM_MUX("ASP TX2 Source", SND_SOC_NOPM, 0, 0, &asp_tx2_mux), SND_SOC_DAPM_MUX("ASP TX3 Source", SND_SOC_NOPM, 0, 0, &asp_tx3_mux), SND_SOC_DAPM_MUX("ASP TX4 Source", SND_SOC_NOPM, 0, 0, &asp_tx4_mux), + SND_SOC_DAPM_MUX("DSP RX1 Source", SND_SOC_NOPM, 0, 0, &dsp_rx1_mux), + SND_SOC_DAPM_MUX("DSP RX2 Source", SND_SOC_NOPM, 0, 0, &dsp_rx2_mux), SND_SOC_DAPM_MUX("PCM Source", SND_SOC_NOPM, 0, 0, &pcm_source_mux), SND_SOC_DAPM_SWITCH("DRE", SND_SOC_NOPM, 0, 0, &dre_ctrl), }; static const struct snd_soc_dapm_route cs35l41_audio_map[] = { + {"DSP RX1 Source", "ASPRX1", "ASPRX1"}, + {"DSP RX1 Source", "ASPRX2", "ASPRX2"}, + {"DSP RX2 Source", "ASPRX1", "ASPRX1"}, + {"DSP RX2 Source", "ASPRX2", "ASPRX2"}, + + {"DSP1", NULL, "DSP RX1 Source"}, + {"DSP1", NULL, "DSP RX2 Source"}, + {"ASP TX1 Source", "VMON", "VMON ADC"}, {"ASP TX1 Source", "IMON", "IMON ADC"}, {"ASP TX1 Source", "VPMON", "VPMON ADC"}, {"ASP TX1 Source", "VBSTMON", "VBSTMON ADC"}, + {"ASP TX1 Source", "DSPTX1", "DSP1"}, + {"ASP TX1 Source", "DSPTX2", "DSP1"}, {"ASP TX1 Source", "ASPRX1", "ASPRX1" }, {"ASP TX1 Source", "ASPRX2", "ASPRX2" }, {"ASP TX2 Source", "VMON", "VMON ADC"}, {"ASP TX2 Source", "IMON", "IMON ADC"}, {"ASP TX2 Source", "VPMON", "VPMON ADC"}, {"ASP TX2 Source", "VBSTMON", "VBSTMON ADC"}, + {"ASP TX2 Source", "DSPTX1", "DSP1"}, + {"ASP TX2 Source", "DSPTX2", "DSP1"}, {"ASP TX2 Source", "ASPRX1", "ASPRX1" }, {"ASP TX2 Source", "ASPRX2", "ASPRX2" }, {"ASP TX3 Source", "VMON", "VMON ADC"}, {"ASP TX3 Source", "IMON", "IMON ADC"}, {"ASP TX3 Source", "VPMON", "VPMON ADC"}, {"ASP TX3 Source", "VBSTMON", "VBSTMON ADC"}, + {"ASP TX3 Source", "DSPTX1", "DSP1"}, + {"ASP TX3 Source", "DSPTX2", "DSP1"}, {"ASP TX3 Source", "ASPRX1", "ASPRX1" }, {"ASP TX3 Source", "ASPRX2", "ASPRX2" }, {"ASP TX4 Source", "VMON", "VMON ADC"}, {"ASP TX4 Source", "IMON", "IMON ADC"}, {"ASP TX4 Source", "VPMON", "VPMON ADC"}, {"ASP TX4 Source", "VBSTMON", "VBSTMON ADC"}, + {"ASP TX4 Source", "DSPTX1", "DSP1"}, + {"ASP TX4 Source", "DSPTX2", "DSP1"}, {"ASP TX4 Source", "ASPRX1", "ASPRX1" }, {"ASP TX4 Source", "ASPRX2", "ASPRX2" }, {"ASPTX1", NULL, "ASP TX1 Source"}, @@ -664,12 +711,27 @@ static const struct snd_soc_dapm_route cs35l41_audio_map[] = { {"AMP Capture", NULL, "ASPTX3"}, {"AMP Capture", NULL, "ASPTX4"}, + {"DSP1", NULL, "VMON"}, + {"DSP1", NULL, "IMON"}, + {"DSP1", NULL, "VPMON"}, + {"DSP1", NULL, "VBSTMON"}, + {"DSP1", NULL, "TEMPMON"}, + + {"VMON ADC", NULL, "VMON"}, + {"IMON ADC", NULL, "IMON"}, + {"VPMON ADC", NULL, "VPMON"}, + {"VBSTMON ADC", NULL, "VBSTMON"}, + {"TEMPMON ADC", NULL, "TEMPMON"}, + {"VMON ADC", NULL, "VSENSE"}, {"IMON ADC", NULL, "ISENSE"}, {"VPMON ADC", NULL, "VP"}, {"VBSTMON ADC", NULL, "VBST"}, {"TEMPMON ADC", NULL, "TEMP"}, + {"DSP1 Preload", NULL, "DSP1 Preloader"}, + {"DSP1", NULL, "DSP1 Preloader"}, + {"ASPRX1", NULL, "AMP Playback"}, {"ASPRX2", NULL, "AMP Playback"}, {"DRE", "Switch", "CLASS H"}, @@ -678,39 +740,24 @@ static const struct snd_soc_dapm_route cs35l41_audio_map[] = { {"SPK", NULL, "Main AMP"}, {"PCM Source", "ASP", "ASPRX1"}, + {"PCM Source", "DSP", "DSP1"}, {"CLASS H", NULL, "PCM Source"}, }; -static int cs35l41_set_channel_map(struct snd_soc_dai *dai, unsigned int tx_num, - unsigned int *tx_slot, unsigned int rx_num, - unsigned int *rx_slot) +static const struct cs_dsp_region cs35l41_dsp1_regions[] = { + { .type = WMFW_HALO_PM_PACKED, .base = CS35L41_DSP1_PMEM_0 }, + { .type = WMFW_HALO_XM_PACKED, .base = CS35L41_DSP1_XMEM_PACK_0 }, + { .type = WMFW_HALO_YM_PACKED, .base = CS35L41_DSP1_YMEM_PACK_0 }, + {. type = WMFW_ADSP2_XM, .base = CS35L41_DSP1_XMEM_UNPACK24_0}, + {. type = WMFW_ADSP2_YM, .base = CS35L41_DSP1_YMEM_UNPACK24_0}, +}; + +static int cs35l41_set_channel_map(struct snd_soc_dai *dai, unsigned int tx_n, + unsigned int *tx_slot, unsigned int rx_n, unsigned int *rx_slot) { struct cs35l41_private *cs35l41 = snd_soc_component_get_drvdata(dai->component); - unsigned int val, mask; - int i; - if (tx_num > 4 || rx_num > 2) - return -EINVAL; - - val = 0; - mask = 0; - for (i = 0; i < rx_num; i++) { - dev_dbg(cs35l41->dev, "rx slot %d position = %d\n", i, rx_slot[i]); - val |= rx_slot[i] << (i * 8); - mask |= 0x3F << (i * 8); - } - regmap_update_bits(cs35l41->regmap, CS35L41_SP_FRAME_RX_SLOT, mask, val); - - val = 0; - mask = 0; - for (i = 0; i < tx_num; i++) { - dev_dbg(cs35l41->dev, "tx slot %d position = %d\n", i, tx_slot[i]); - val |= tx_slot[i] << (i * 8); - mask |= 0x3F << (i * 8); - } - regmap_update_bits(cs35l41->regmap, CS35L41_SP_FRAME_TX_SLOT, mask, val); - - return 0; + return cs35l41_set_channels(cs35l41->dev, cs35l41->regmap, tx_n, tx_slot, rx_n, rx_slot); } static int cs35l41_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) @@ -946,88 +993,6 @@ static int cs35l41_dai_set_sysclk(struct snd_soc_dai *dai, return 0; } -static int cs35l41_boost_config(struct cs35l41_private *cs35l41, - int boost_ind, int boost_cap, int boost_ipk) -{ - unsigned char bst_lbst_val, bst_cbst_range, bst_ipk_scaled; - struct regmap *regmap = cs35l41->regmap; - struct device *dev = cs35l41->dev; - int ret; - - switch (boost_ind) { - case 1000: /* 1.0 uH */ - bst_lbst_val = 0; - break; - case 1200: /* 1.2 uH */ - bst_lbst_val = 1; - break; - case 1500: /* 1.5 uH */ - bst_lbst_val = 2; - break; - case 2200: /* 2.2 uH */ - bst_lbst_val = 3; - break; - default: - dev_err(dev, "Invalid boost inductor value: %d nH\n", boost_ind); - return -EINVAL; - } - - switch (boost_cap) { - case 0 ... 19: - bst_cbst_range = 0; - break; - case 20 ... 50: - bst_cbst_range = 1; - break; - case 51 ... 100: - bst_cbst_range = 2; - break; - case 101 ... 200: - bst_cbst_range = 3; - break; - default: /* 201 uF and greater */ - bst_cbst_range = 4; - } - - ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_COEFF, - CS35L41_BST_K1_MASK | CS35L41_BST_K2_MASK, - cs35l41_bst_k1_table[bst_lbst_val][bst_cbst_range] - << CS35L41_BST_K1_SHIFT | - cs35l41_bst_k2_table[bst_lbst_val][bst_cbst_range] - << CS35L41_BST_K2_SHIFT); - if (ret) { - dev_err(dev, "Failed to write boost coefficients: %d\n", ret); - return ret; - } - - ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_SLOPE_LBST, - CS35L41_BST_SLOPE_MASK | CS35L41_BST_LBST_VAL_MASK, - cs35l41_bst_slope_table[bst_lbst_val] - << CS35L41_BST_SLOPE_SHIFT | - bst_lbst_val << CS35L41_BST_LBST_VAL_SHIFT); - if (ret) { - dev_err(dev, "Failed to write boost slope/inductor value: %d\n", ret); - return ret; - } - - if (boost_ipk < 1600 || boost_ipk > 4500) { - dev_err(dev, "Invalid boost inductor peak current: %d mA\n", - boost_ipk); - return -EINVAL; - } - bst_ipk_scaled = ((boost_ipk - 1600) / 50) + 0x10; - - ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_PEAK_CUR, - CS35L41_BST_IPK_MASK, - bst_ipk_scaled << CS35L41_BST_IPK_SHIFT); - if (ret) { - dev_err(dev, "Failed to write boost inductor peak current: %d\n", ret); - return ret; - } - - return 0; -} - static int cs35l41_set_pdata(struct cs35l41_private *cs35l41) { int ret; @@ -1036,9 +1001,8 @@ static int cs35l41_set_pdata(struct cs35l41_private *cs35l41) /* Required */ if (cs35l41->pdata.bst_ipk && cs35l41->pdata.bst_ind && cs35l41->pdata.bst_cap) { - ret = cs35l41_boost_config(cs35l41, cs35l41->pdata.bst_ind, - cs35l41->pdata.bst_cap, - cs35l41->pdata.bst_ipk); + ret = cs35l41_boost_config(cs35l41->dev, cs35l41->regmap, cs35l41->pdata.bst_ind, + cs35l41->pdata.bst_cap, cs35l41->pdata.bst_ipk); if (ret) { dev_err(cs35l41->dev, "Error in Boost DT config: %d\n", ret); return ret; @@ -1091,6 +1055,20 @@ static int cs35l41_irq_gpio_config(struct cs35l41_private *cs35l41) return irq_pol; } +static int cs35l41_component_probe(struct snd_soc_component *component) +{ + struct cs35l41_private *cs35l41 = snd_soc_component_get_drvdata(component); + + return wm_adsp2_component_probe(&cs35l41->dsp, component); +} + +static void cs35l41_component_remove(struct snd_soc_component *component) +{ + struct cs35l41_private *cs35l41 = snd_soc_component_get_drvdata(component); + + wm_adsp2_component_remove(&cs35l41->dsp, component); +} + static const struct snd_soc_dai_ops cs35l41_ops = { .startup = cs35l41_pcm_startup, .set_fmt = cs35l41_set_dai_fmt, @@ -1124,6 +1102,8 @@ static struct snd_soc_dai_driver cs35l41_dai[] = { static const struct snd_soc_component_driver soc_component_dev_cs35l41 = { .name = "cs35l41-codec", + .probe = cs35l41_component_probe, + .remove = cs35l41_component_remove, .dapm_widgets = cs35l41_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(cs35l41_dapm_widgets), @@ -1185,50 +1165,90 @@ static int cs35l41_handle_pdata(struct device *dev, return 0; } -static const struct reg_sequence cs35l41_reva0_errata_patch[] = { - { 0x00000040, 0x00005555 }, - { 0x00000040, 0x0000AAAA }, - { 0x00003854, 0x05180240 }, - { CS35L41_VIMON_SPKMON_RESYNC, 0x00000000 }, - { 0x00004310, 0x00000000 }, - { CS35L41_VPVBST_FS_SEL, 0x00000000 }, - { CS35L41_OTP_TRIM_30, 0x9091A1C8 }, - { 0x00003014, 0x0200EE0E }, - { CS35L41_BSTCVRT_DCM_CTRL, 0x00000051 }, - { 0x00000054, 0x00000004 }, - { CS35L41_IRQ1_DB3, 0x00000000 }, - { CS35L41_IRQ2_DB3, 0x00000000 }, - { CS35L41_DSP1_YM_ACCEL_PL0_PRI, 0x00000000 }, - { CS35L41_DSP1_XM_ACCEL_PL0_PRI, 0x00000000 }, - { 0x00000040, 0x0000CCCC }, - { 0x00000040, 0x00003333 }, +static const struct reg_sequence cs35l41_fs_errata_patch[] = { + { CS35L41_DSP1_RX1_RATE, 0x00000001 }, + { CS35L41_DSP1_RX2_RATE, 0x00000001 }, + { CS35L41_DSP1_RX3_RATE, 0x00000001 }, + { CS35L41_DSP1_RX4_RATE, 0x00000001 }, + { CS35L41_DSP1_RX5_RATE, 0x00000001 }, + { CS35L41_DSP1_RX6_RATE, 0x00000001 }, + { CS35L41_DSP1_RX7_RATE, 0x00000001 }, + { CS35L41_DSP1_RX8_RATE, 0x00000001 }, + { CS35L41_DSP1_TX1_RATE, 0x00000001 }, + { CS35L41_DSP1_TX2_RATE, 0x00000001 }, + { CS35L41_DSP1_TX3_RATE, 0x00000001 }, + { CS35L41_DSP1_TX4_RATE, 0x00000001 }, + { CS35L41_DSP1_TX5_RATE, 0x00000001 }, + { CS35L41_DSP1_TX6_RATE, 0x00000001 }, + { CS35L41_DSP1_TX7_RATE, 0x00000001 }, + { CS35L41_DSP1_TX8_RATE, 0x00000001 }, }; -static const struct reg_sequence cs35l41_revb0_errata_patch[] = { - { 0x00000040, 0x00005555 }, - { 0x00000040, 0x0000AAAA }, - { CS35L41_VIMON_SPKMON_RESYNC, 0x00000000 }, - { 0x00004310, 0x00000000 }, - { CS35L41_VPVBST_FS_SEL, 0x00000000 }, - { CS35L41_BSTCVRT_DCM_CTRL, 0x00000051 }, - { CS35L41_DSP1_YM_ACCEL_PL0_PRI, 0x00000000 }, - { CS35L41_DSP1_XM_ACCEL_PL0_PRI, 0x00000000 }, - { 0x00000040, 0x0000CCCC }, - { 0x00000040, 0x00003333 }, -}; +static int cs35l41_dsp_init(struct cs35l41_private *cs35l41) +{ + struct wm_adsp *dsp; + int ret; -static const struct reg_sequence cs35l41_revb2_errata_patch[] = { - { 0x00000040, 0x00005555 }, - { 0x00000040, 0x0000AAAA }, - { CS35L41_VIMON_SPKMON_RESYNC, 0x00000000 }, - { 0x00004310, 0x00000000 }, - { CS35L41_VPVBST_FS_SEL, 0x00000000 }, - { CS35L41_BSTCVRT_DCM_CTRL, 0x00000051 }, - { CS35L41_DSP1_YM_ACCEL_PL0_PRI, 0x00000000 }, - { CS35L41_DSP1_XM_ACCEL_PL0_PRI, 0x00000000 }, - { 0x00000040, 0x0000CCCC }, - { 0x00000040, 0x00003333 }, -}; + dsp = &cs35l41->dsp; + dsp->part = "cs35l41"; + dsp->cs_dsp.num = 1; + dsp->cs_dsp.type = WMFW_HALO; + dsp->cs_dsp.rev = 0; + dsp->fw = 9; /* 9 is WM_ADSP_FW_SPK_PROT in wm_adsp.c */ + dsp->toggle_preload = true; + dsp->cs_dsp.dev = cs35l41->dev; + dsp->cs_dsp.regmap = cs35l41->regmap; + dsp->cs_dsp.base = CS35L41_DSP1_CTRL_BASE; + dsp->cs_dsp.base_sysinfo = CS35L41_DSP1_SYS_ID; + dsp->cs_dsp.mem = cs35l41_dsp1_regions; + dsp->cs_dsp.num_mems = ARRAY_SIZE(cs35l41_dsp1_regions); + dsp->cs_dsp.lock_regions = 0xFFFFFFFF; + + ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41_fs_errata_patch, + ARRAY_SIZE(cs35l41_fs_errata_patch)); + if (ret < 0) { + dev_err(cs35l41->dev, "Failed to write fs errata: %d\n", ret); + return ret; + } + + ret = wm_halo_init(dsp); + if (ret) { + dev_err(cs35l41->dev, "wm_halo_init failed: %d\n", ret); + return ret; + } + + ret = regmap_write(cs35l41->regmap, CS35L41_DSP1_RX5_SRC, + CS35L41_INPUT_SRC_VPMON); + if (ret < 0) { + dev_err(cs35l41->dev, "Write INPUT_SRC_VPMON failed: %d\n", ret); + goto err_dsp; + } + ret = regmap_write(cs35l41->regmap, CS35L41_DSP1_RX6_SRC, + CS35L41_INPUT_SRC_CLASSH); + if (ret < 0) { + dev_err(cs35l41->dev, "Write INPUT_SRC_CLASSH failed: %d\n", ret); + goto err_dsp; + } + ret = regmap_write(cs35l41->regmap, CS35L41_DSP1_RX7_SRC, + CS35L41_INPUT_SRC_TEMPMON); + if (ret < 0) { + dev_err(cs35l41->dev, "Write INPUT_SRC_TEMPMON failed: %d\n", ret); + goto err_dsp; + } + ret = regmap_write(cs35l41->regmap, CS35L41_DSP1_RX8_SRC, + CS35L41_INPUT_SRC_RSVD); + if (ret < 0) { + dev_err(cs35l41->dev, "Write INPUT_SRC_RSVD failed: %d\n", ret); + goto err_dsp; + } + + return 0; + +err_dsp: + wm_adsp2_remove(dsp); + + return ret; +} int cs35l41_probe(struct cs35l41_private *cs35l41, struct cs35l41_platform_data *pdata) @@ -1325,39 +1345,20 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, goto err; } - switch (reg_revid) { - case CS35L41_REVID_A0: - ret = regmap_register_patch(cs35l41->regmap, - cs35l41_reva0_errata_patch, - ARRAY_SIZE(cs35l41_reva0_errata_patch)); - if (ret < 0) { - dev_err(cs35l41->dev, - "Failed to apply A0 errata patch: %d\n", ret); - goto err; - } - break; - case CS35L41_REVID_B0: - ret = regmap_register_patch(cs35l41->regmap, - cs35l41_revb0_errata_patch, - ARRAY_SIZE(cs35l41_revb0_errata_patch)); - if (ret < 0) { - dev_err(cs35l41->dev, - "Failed to apply B0 errata patch: %d\n", ret); - goto err; - } - break; - case CS35L41_REVID_B2: - ret = regmap_register_patch(cs35l41->regmap, - cs35l41_revb2_errata_patch, - ARRAY_SIZE(cs35l41_revb2_errata_patch)); - if (ret < 0) { - dev_err(cs35l41->dev, - "Failed to apply B2 errata patch: %d\n", ret); - goto err; - } - break; + cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap); + + ret = cs35l41_register_errata_patch(cs35l41->dev, cs35l41->regmap, reg_revid); + if (ret) + goto err; + + ret = cs35l41_otp_unpack(cs35l41->dev, cs35l41->regmap); + if (ret < 0) { + dev_err(cs35l41->dev, "OTP Unpack failed: %d\n", ret); + goto err; } + cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap); + irq_pol = cs35l41_irq_gpio_config(cs35l41); /* Set interrupt masks for critical errors */ @@ -1367,71 +1368,229 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, ret = devm_request_threaded_irq(cs35l41->dev, cs35l41->irq, NULL, cs35l41_irq, IRQF_ONESHOT | IRQF_SHARED | irq_pol, "cs35l41", cs35l41); - - /* CS35L41 needs INT for PDN_DONE */ if (ret != 0) { dev_err(cs35l41->dev, "Failed to request IRQ: %d\n", ret); goto err; } - ret = cs35l41_otp_unpack(cs35l41); - if (ret < 0) { - dev_err(cs35l41->dev, "OTP Unpack failed: %d\n", ret); - goto err; - } - - ret = regmap_write(cs35l41->regmap, CS35L41_DSP1_CCM_CORE_CTRL, 0); - if (ret < 0) { - dev_err(cs35l41->dev, "Write CCM_CORE_CTRL failed: %d\n", ret); - goto err; - } - - ret = regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, - CS35L41_AMP_EN_MASK, 0); + ret = cs35l41_set_pdata(cs35l41); if (ret < 0) { - dev_err(cs35l41->dev, "Write CS35L41_PWR_CTRL2 failed: %d\n", ret); + dev_err(cs35l41->dev, "Set pdata failed: %d\n", ret); goto err; } - ret = regmap_update_bits(cs35l41->regmap, CS35L41_AMP_GAIN_CTRL, - CS35L41_AMP_GAIN_PCM_MASK, 0); - if (ret < 0) { - dev_err(cs35l41->dev, "Write CS35L41_AMP_GAIN_CTRL failed: %d\n", ret); + ret = cs35l41_dsp_init(cs35l41); + if (ret < 0) goto err; - } - ret = cs35l41_set_pdata(cs35l41); - if (ret < 0) { - dev_err(cs35l41->dev, "Set pdata failed: %d\n", ret); - goto err; - } + pm_runtime_set_autosuspend_delay(cs35l41->dev, 3000); + pm_runtime_use_autosuspend(cs35l41->dev); + pm_runtime_mark_last_busy(cs35l41->dev); + pm_runtime_set_active(cs35l41->dev); + pm_runtime_get_noresume(cs35l41->dev); + pm_runtime_enable(cs35l41->dev); ret = devm_snd_soc_register_component(cs35l41->dev, &soc_component_dev_cs35l41, cs35l41_dai, ARRAY_SIZE(cs35l41_dai)); if (ret < 0) { dev_err(cs35l41->dev, "Register codec failed: %d\n", ret); - goto err; + goto err_pm; } + pm_runtime_put_autosuspend(cs35l41->dev); + dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n", regid, reg_revid); return 0; +err_pm: + pm_runtime_disable(cs35l41->dev); + pm_runtime_put_noidle(cs35l41->dev); + + wm_adsp2_remove(&cs35l41->dsp); err: regulator_bulk_disable(CS35L41_NUM_SUPPLIES, cs35l41->supplies); gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); return ret; } +EXPORT_SYMBOL_GPL(cs35l41_probe); void cs35l41_remove(struct cs35l41_private *cs35l41) { + pm_runtime_get_sync(cs35l41->dev); + pm_runtime_disable(cs35l41->dev); + regmap_write(cs35l41->regmap, CS35L41_IRQ1_MASK1, 0xFFFFFFFF); + wm_adsp2_remove(&cs35l41->dsp); + + pm_runtime_put_noidle(cs35l41->dev); + regulator_bulk_disable(CS35L41_NUM_SUPPLIES, cs35l41->supplies); gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); } +EXPORT_SYMBOL_GPL(cs35l41_remove); + +static int __maybe_unused cs35l41_runtime_suspend(struct device *dev) +{ + struct cs35l41_private *cs35l41 = dev_get_drvdata(dev); + + dev_dbg(cs35l41->dev, "Runtime suspend\n"); + + if (!cs35l41->dsp.preloaded || !cs35l41->dsp.cs_dsp.running) + return 0; + + dev_dbg(cs35l41->dev, "Enter hibernate\n"); + + regmap_write(cs35l41->regmap, CS35L41_WAKESRC_CTL, 0x0088); + regmap_write(cs35l41->regmap, CS35L41_WAKESRC_CTL, 0x0188); + + // Don't wait for ACK since bus activity would wake the device + regmap_write(cs35l41->regmap, CS35L41_DSP_VIRT1_MBOX_1, + CSPL_MBOX_CMD_HIBERNATE); + + regcache_cache_only(cs35l41->regmap, true); + regcache_mark_dirty(cs35l41->regmap); + + return 0; +} + +static void cs35l41_wait_for_pwrmgt_sts(struct cs35l41_private *cs35l41) +{ + const int pwrmgt_retries = 10; + unsigned int sts; + int i, ret; + + for (i = 0; i < pwrmgt_retries; i++) { + ret = regmap_read(cs35l41->regmap, CS35L41_PWRMGT_STS, &sts); + if (ret) + dev_err(cs35l41->dev, "Failed to read PWRMGT_STS: %d\n", ret); + else if (!(sts & CS35L41_WR_PEND_STS_MASK)) + return; + + udelay(20); + } + + dev_err(cs35l41->dev, "Timed out reading PWRMGT_STS\n"); +} + +static int cs35l41_exit_hibernate(struct cs35l41_private *cs35l41) +{ + const int wake_retries = 20; + const int sleep_retries = 5; + int ret, i, j; + + for (i = 0; i < sleep_retries; i++) { + dev_dbg(cs35l41->dev, "Exit hibernate\n"); + + for (j = 0; j < wake_retries; j++) { + ret = cs35l41_set_cspl_mbox_cmd(cs35l41, + CSPL_MBOX_CMD_OUT_OF_HIBERNATE); + if (!ret) + break; + + usleep_range(100, 200); + } + + if (j < wake_retries) { + dev_dbg(cs35l41->dev, "Wake success at cycle: %d\n", j); + return 0; + } + + dev_err(cs35l41->dev, "Wake failed, re-enter hibernate: %d\n", ret); + + cs35l41_wait_for_pwrmgt_sts(cs35l41); + regmap_write(cs35l41->regmap, CS35L41_WAKESRC_CTL, 0x0088); + + cs35l41_wait_for_pwrmgt_sts(cs35l41); + regmap_write(cs35l41->regmap, CS35L41_WAKESRC_CTL, 0x0188); + + cs35l41_wait_for_pwrmgt_sts(cs35l41); + regmap_write(cs35l41->regmap, CS35L41_PWRMGT_CTL, 0x3); + } + + dev_err(cs35l41->dev, "Timed out waking device\n"); + + return -ETIMEDOUT; +} + +static int __maybe_unused cs35l41_runtime_resume(struct device *dev) +{ + struct cs35l41_private *cs35l41 = dev_get_drvdata(dev); + int ret; + + dev_dbg(cs35l41->dev, "Runtime resume\n"); + + if (!cs35l41->dsp.preloaded || !cs35l41->dsp.cs_dsp.running) + return 0; + + regcache_cache_only(cs35l41->regmap, false); + + ret = cs35l41_exit_hibernate(cs35l41); + if (ret) + return ret; + + /* Test key needs to be unlocked to allow the OTP settings to re-apply */ + cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap); + ret = regcache_sync(cs35l41->regmap); + cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap); + if (ret) { + dev_err(cs35l41->dev, "Failed to restore register cache: %d\n", ret); + return ret; + } + + return 0; +} + +static int __maybe_unused cs35l41_sys_suspend(struct device *dev) +{ + struct cs35l41_private *cs35l41 = dev_get_drvdata(dev); + + dev_dbg(cs35l41->dev, "System suspend, disabling IRQ\n"); + disable_irq(cs35l41->irq); + + return 0; +} + +static int __maybe_unused cs35l41_sys_suspend_noirq(struct device *dev) +{ + struct cs35l41_private *cs35l41 = dev_get_drvdata(dev); + + dev_dbg(cs35l41->dev, "Late system suspend, reenabling IRQ\n"); + enable_irq(cs35l41->irq); + + return 0; +} + +static int __maybe_unused cs35l41_sys_resume_noirq(struct device *dev) +{ + struct cs35l41_private *cs35l41 = dev_get_drvdata(dev); + + dev_dbg(cs35l41->dev, "Early system resume, disabling IRQ\n"); + disable_irq(cs35l41->irq); + + return 0; +} + +static int __maybe_unused cs35l41_sys_resume(struct device *dev) +{ + struct cs35l41_private *cs35l41 = dev_get_drvdata(dev); + + dev_dbg(cs35l41->dev, "System resume, reenabling IRQ\n"); + enable_irq(cs35l41->irq); + + return 0; +} + +const struct dev_pm_ops cs35l41_pm_ops = { + SET_RUNTIME_PM_OPS(cs35l41_runtime_suspend, cs35l41_runtime_resume, NULL) + + SET_SYSTEM_SLEEP_PM_OPS(cs35l41_sys_suspend, cs35l41_sys_resume) + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(cs35l41_sys_suspend_noirq, cs35l41_sys_resume_noirq) +}; +EXPORT_SYMBOL_GPL(cs35l41_pm_ops); MODULE_DESCRIPTION("ASoC CS35L41 driver"); MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>"); |