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[92.233.226.227]) by smtp.gmail.com with ESMTPSA id f10sm4729487edx.60.2021.06.01.04.34.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Jun 2021 04:34:40 -0700 (PDT) From: Srinivas Kandagatla To: broonie@kernel.org Cc: robh@kernel.org, devicetree@vger.kernel.org, perex@perex.cz, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, lgirdwood@gmail.com, Srinivas Kandagatla Subject: [PATCH v8 5/9] ASoC: codecs: wcd938x-sdw: add SoundWire driver Date: Tue, 1 Jun 2021 12:31:54 +0100 Message-Id: <20210601113158.16085-6-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20210601113158.16085-1-srinivas.kandagatla@linaro.org> References: <20210601113158.16085-1-srinivas.kandagatla@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch adds support to SoundWire devices on WCD9380/WCD9385 Codec Signed-off-by: Srinivas Kandagatla --- sound/soc/codecs/Kconfig | 9 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/wcd938x-sdw.c | 315 +++++++++++++++++++++++++++++++++ sound/soc/codecs/wcd938x.c | 82 +++++++++ sound/soc/codecs/wcd938x.h | 49 +++++ 5 files changed, 457 insertions(+) create mode 100644 sound/soc/codecs/wcd938x-sdw.c -- 2.21.0 diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index f6ca59624e76..ab806a6057e0 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -1548,6 +1548,15 @@ config SND_SOC_WCD934X config SND_SOC_WCD938X tristate +config SND_SOC_WCD938X_SDW + tristate "WCD9380/WCD9385 Codec - SDW" + select SND_SOC_WCD938X + depends on SOUNDWIRE + select REGMAP_SOUNDWIRE + help + The WCD9380/9385 is a audio codec IC Integrated in + Qualcomm SoCs like SM8250. + config SND_SOC_WL1273 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 444f60269b80..549f98f796ac 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -254,6 +254,7 @@ snd-soc-uda1380-objs := uda1380.o snd-soc-wcd9335-objs := wcd-clsh-v2.o wcd9335.o snd-soc-wcd934x-objs := wcd-clsh-v2.o wcd934x.o snd-soc-wcd938x-objs := wcd938x.o wcd-clsh-v2.o +snd-soc-wcd938x-sdw-objs := wcd938x-sdw.o snd-soc-wl1273-objs := wl1273.o snd-soc-wm-adsp-objs := wm_adsp.o snd-soc-wm0010-objs := wm0010.o @@ -578,6 +579,7 @@ obj-$(CONFIG_SND_SOC_UDA1380) += snd-soc-uda1380.o obj-$(CONFIG_SND_SOC_WCD9335) += snd-soc-wcd9335.o obj-$(CONFIG_SND_SOC_WCD934X) += snd-soc-wcd934x.o obj-$(CONFIG_SND_SOC_WCD938X) += snd-soc-wcd938x.o +obj-$(CONFIG_SND_SOC_WCD938X_SDW) += snd-soc-wcd938x-sdw.o obj-$(CONFIG_SND_SOC_WL1273) += snd-soc-wl1273.o obj-$(CONFIG_SND_SOC_WM0010) += snd-soc-wm0010.o obj-$(CONFIG_SND_SOC_WM1250_EV1) += snd-soc-wm1250-ev1.o diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c new file mode 100644 index 000000000000..d82c40ec6898 --- /dev/null +++ b/sound/soc/codecs/wcd938x-sdw.c @@ -0,0 +1,315 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2021, Linaro Limited + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "wcd938x.h" + +#define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m)) + +static struct wcd938x_sdw_ch_info wcd938x_sdw_rx_ch_info[] = { + WCD_SDW_CH(WCD938X_HPH_L, WCD938X_HPH_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_HPH_R, WCD938X_HPH_PORT, BIT(1)), + WCD_SDW_CH(WCD938X_CLSH, WCD938X_CLSH_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_COMP_L, WCD938X_COMP_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_COMP_R, WCD938X_COMP_PORT, BIT(1)), + WCD_SDW_CH(WCD938X_LO, WCD938X_LO_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_DSD_L, WCD938X_DSD_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_DSD_R, WCD938X_DSD_PORT, BIT(1)), +}; + +static struct wcd938x_sdw_ch_info wcd938x_sdw_tx_ch_info[] = { + WCD_SDW_CH(WCD938X_ADC1, WCD938X_ADC_1_2_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_ADC2, WCD938X_ADC_1_2_PORT, BIT(1)), + WCD_SDW_CH(WCD938X_ADC3, WCD938X_ADC_3_4_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_ADC4, WCD938X_ADC_3_4_PORT, BIT(1)), + WCD_SDW_CH(WCD938X_DMIC0, WCD938X_DMIC_0_3_MBHC_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_DMIC1, WCD938X_DMIC_0_3_MBHC_PORT, BIT(1)), + WCD_SDW_CH(WCD938X_MBHC, WCD938X_DMIC_0_3_MBHC_PORT, BIT(2)), + WCD_SDW_CH(WCD938X_DMIC2, WCD938X_DMIC_0_3_MBHC_PORT, BIT(2)), + WCD_SDW_CH(WCD938X_DMIC3, WCD938X_DMIC_0_3_MBHC_PORT, BIT(3)), + WCD_SDW_CH(WCD938X_DMIC4, WCD938X_DMIC_4_7_PORT, BIT(0)), + WCD_SDW_CH(WCD938X_DMIC5, WCD938X_DMIC_4_7_PORT, BIT(1)), + WCD_SDW_CH(WCD938X_DMIC6, WCD938X_DMIC_4_7_PORT, BIT(2)), + WCD_SDW_CH(WCD938X_DMIC7, WCD938X_DMIC_4_7_PORT, BIT(3)), +}; + +static struct sdw_dpn_prop wcd938x_dpn_prop[WCD938X_MAX_SWR_PORTS] = { + { + .num = 1, + .type = SDW_DPN_SIMPLE, + .min_ch = 1, + .max_ch = 8, + .simple_ch_prep_sm = true, + }, { + .num = 2, + .type = SDW_DPN_SIMPLE, + .min_ch = 1, + .max_ch = 4, + .simple_ch_prep_sm = true, + }, { + .num = 3, + .type = SDW_DPN_SIMPLE, + .min_ch = 1, + .max_ch = 4, + .simple_ch_prep_sm = true, + }, { + .num = 4, + .type = SDW_DPN_SIMPLE, + .min_ch = 1, + .max_ch = 4, + .simple_ch_prep_sm = true, + }, { + .num = 5, + .type = SDW_DPN_SIMPLE, + .min_ch = 1, + .max_ch = 4, + .simple_ch_prep_sm = true, + } +}; + +struct device *wcd938x_sdw_device_get(struct device_node *np) +{ + return bus_find_device_by_of_node(&sdw_bus_type, np); + +} +EXPORT_SYMBOL_GPL(wcd938x_sdw_device_get); + +int wcd938x_swr_get_current_bank(struct sdw_slave *sdev) +{ + int bank; + + bank = sdw_read(sdev, SDW_SCP_CTRL); + + return ((bank & 0x40) ? 1 : 0); +} +EXPORT_SYMBOL_GPL(wcd938x_swr_get_current_bank); + +int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct sdw_port_config port_config[WCD938X_MAX_SWR_PORTS]; + unsigned long ch_mask; + int i, j; + + wcd->sconfig.ch_count = 1; + wcd->active_ports = 0; + for (i = 0; i < WCD938X_MAX_SWR_PORTS; i++) { + ch_mask = wcd->port_config[i].ch_mask; + + if (!ch_mask) + continue; + + for_each_set_bit(j, &ch_mask, 4) + wcd->sconfig.ch_count++; + + port_config[wcd->active_ports] = wcd->port_config[i]; + wcd->active_ports++; + } + + wcd->sconfig.bps = 1; + wcd->sconfig.frame_rate = params_rate(params); + if (wcd->is_tx) + wcd->sconfig.direction = SDW_DATA_DIR_TX; + else + wcd->sconfig.direction = SDW_DATA_DIR_RX; + + wcd->sconfig.type = SDW_STREAM_PCM; + + return sdw_stream_add_slave(wcd->sdev, &wcd->sconfig, + &port_config[0], wcd->active_ports, + wcd->sruntime); +} +EXPORT_SYMBOL_GPL(wcd938x_sdw_hw_params); + +int wcd938x_sdw_free(struct wcd938x_sdw_priv *wcd, + struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + sdw_stream_remove_slave(wcd->sdev, wcd->sruntime); + + return 0; +} +EXPORT_SYMBOL_GPL(wcd938x_sdw_free); + +int wcd938x_sdw_set_sdw_stream(struct wcd938x_sdw_priv *wcd, + struct snd_soc_dai *dai, + void *stream, int direction) +{ + wcd->sruntime = stream; + + return 0; +} +EXPORT_SYMBOL_GPL(wcd938x_sdw_set_sdw_stream); + +static int wcd9380_update_status(struct sdw_slave *slave, + enum sdw_slave_status status) +{ + return 0; +} + +static int wcd9380_bus_config(struct sdw_slave *slave, + struct sdw_bus_params *params) +{ + sdw_write(slave, SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(params->next_bank), 0x01); + + return 0; +} + +static int wcd9380_interrupt_callback(struct sdw_slave *slave, + struct sdw_slave_intr_status *status) +{ + struct wcd938x_sdw_priv *wcd = dev_get_drvdata(&slave->dev); + + return wcd938x_handle_sdw_irq(wcd); +} + +static struct sdw_slave_ops wcd9380_slave_ops = { + .update_status = wcd9380_update_status, + .interrupt_callback = wcd9380_interrupt_callback, + .bus_config = wcd9380_bus_config, +}; + +static int wcd938x_sdw_component_bind(struct device *dev, + struct device *master, void *data) +{ + return 0; +} + +static void wcd938x_sdw_component_unbind(struct device *dev, + struct device *master, void *data) +{ +} + +static const struct component_ops wcd938x_sdw_component_ops = { + .bind = wcd938x_sdw_component_bind, + .unbind = wcd938x_sdw_component_unbind, +}; + +static int wcd9380_probe(struct sdw_slave *pdev, + const struct sdw_device_id *id) +{ + struct device *dev = &pdev->dev; + struct wcd938x_sdw_priv *wcd; + int ret; + + wcd = devm_kzalloc(dev, sizeof(*wcd), GFP_KERNEL); + if (!wcd) + return -ENOMEM; + + /** + * Port map index starts with 0, however the data port for this codec + * are from index 1 + */ + if (of_property_read_bool(dev->of_node, "qcom,tx-port-mapping")) { + wcd->is_tx = true; + ret = of_property_read_u32_array(dev->of_node, "qcom,tx-port-mapping", + &pdev->m_port_map[1], + WCD938X_MAX_TX_SWR_PORTS); + } else { + ret = of_property_read_u32_array(dev->of_node, "qcom,rx-port-mapping", + &pdev->m_port_map[1], + WCD938X_MAX_SWR_PORTS); + } + + if (ret < 0) + dev_info(dev, "Static Port mapping not specified\n"); + + wcd->sdev = pdev; + dev_set_drvdata(dev, wcd); + + pdev->prop.scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | + SDW_SCP_INT1_BUS_CLASH | + SDW_SCP_INT1_PARITY; + pdev->prop.lane_control_support = true; + if (wcd->is_tx) { + struct regmap *rm; + + pdev->prop.source_ports = GENMASK(WCD938X_MAX_SWR_PORTS, 0); + pdev->prop.src_dpn_prop = wcd938x_dpn_prop; + wcd->ch_info = &wcd938x_sdw_tx_ch_info[0]; + pdev->prop.wake_capable = true; + + rm = devm_regmap_init_sdw(pdev, &wcd938x_regmap_config); + if (IS_ERR(rm)) + return PTR_ERR(rm); + } else { + pdev->prop.sink_ports = GENMASK(WCD938X_MAX_SWR_PORTS, 0); + pdev->prop.sink_dpn_prop = wcd938x_dpn_prop; + wcd->ch_info = &wcd938x_sdw_rx_ch_info[0]; + } + + pm_runtime_set_autosuspend_delay(dev, 3000); + pm_runtime_use_autosuspend(dev); + pm_runtime_mark_last_busy(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + return component_add(dev, &wcd938x_sdw_component_ops); +} + +static const struct sdw_device_id wcd9380_slave_id[] = { + SDW_SLAVE_ENTRY(0x0217, 0x10d, 0), + {}, +}; +MODULE_DEVICE_TABLE(sdw, wcd9380_slave_id); + +static int __maybe_unused wcd938x_sdw_runtime_suspend(struct device *dev) +{ + struct regmap *regmap = dev_get_regmap(dev, NULL); + + if (regmap) { + regcache_cache_only(regmap, true); + regcache_mark_dirty(regmap); + } + return 0; +} + +static int __maybe_unused wcd938x_sdw_runtime_resume(struct device *dev) +{ + struct regmap *regmap = dev_get_regmap(dev, NULL); + + if (regmap) { + regcache_cache_only(regmap, false); + regcache_sync(regmap); + } + + pm_runtime_mark_last_busy(dev); + + return 0; +} + +static const struct dev_pm_ops wcd938x_sdw_pm_ops = { + SET_RUNTIME_PM_OPS(wcd938x_sdw_runtime_suspend, wcd938x_sdw_runtime_resume, NULL) +}; + + +static struct sdw_driver wcd9380_codec_driver = { + .probe = wcd9380_probe, + .ops = &wcd9380_slave_ops, + .id_table = wcd9380_slave_id, + .driver = { + .name = "wcd9380-codec", + .pm = &wcd938x_sdw_pm_ops, + } +}; +module_sdw_driver(wcd9380_codec_driver); + +MODULE_DESCRIPTION("WCD938X SDW codec driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c index 6b8ee9971945..6400ff7347d4 100644 --- a/sound/soc/codecs/wcd938x.c +++ b/sound/soc/codecs/wcd938x.c @@ -1514,7 +1514,39 @@ int wcd938x_handle_sdw_irq(struct wcd938x_sdw_priv *wcd) } EXPORT_SYMBOL_GPL(wcd938x_handle_sdw_irq); +static int wcd938x_codec_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct wcd938x_priv *wcd938x = dev_get_drvdata(dai->dev); + struct wcd938x_sdw_priv *wcd = wcd938x->sdw_priv[dai->id]; + + return wcd938x_sdw_hw_params(wcd, substream, params, dai); +} + +static int wcd938x_codec_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct wcd938x_priv *wcd938x = dev_get_drvdata(dai->dev); + struct wcd938x_sdw_priv *wcd = wcd938x->sdw_priv[dai->id]; + + return wcd938x_sdw_free(wcd, substream, dai); +} + +static int wcd938x_codec_set_sdw_stream(struct snd_soc_dai *dai, + void *stream, int direction) +{ + struct wcd938x_priv *wcd938x = dev_get_drvdata(dai->dev); + struct wcd938x_sdw_priv *wcd = wcd938x->sdw_priv[dai->id]; + + return wcd938x_sdw_set_sdw_stream(wcd, dai, stream, direction); + +} + static struct snd_soc_dai_ops wcd938x_sdw_dai_ops = { + .hw_params = wcd938x_codec_hw_params, + .hw_free = wcd938x_codec_free, + .set_sdw_stream = wcd938x_codec_set_sdw_stream, }; static struct snd_soc_dai_driver wcd938x_dais[] = { @@ -1558,6 +1590,53 @@ static int wcd938x_bind(struct device *dev) return ret; } + wcd938x->rxdev = wcd938x_sdw_device_get(wcd938x->rxnode); + if (!wcd938x->rxdev) { + dev_err(dev, "could not find slave with matching of node\n"); + return -EINVAL; + } + wcd938x->sdw_priv[AIF1_PB] = dev_get_drvdata(wcd938x->rxdev); + wcd938x->sdw_priv[AIF1_PB]->wcd938x = wcd938x; + + wcd938x->txdev = wcd938x_sdw_device_get(wcd938x->txnode); + if (!wcd938x->txdev) { + dev_err(dev, "could not find txslave with matching of node\n"); + return -EINVAL; + } + wcd938x->sdw_priv[AIF1_CAP] = dev_get_drvdata(wcd938x->txdev); + wcd938x->sdw_priv[AIF1_CAP]->wcd938x = wcd938x; + wcd938x->tx_sdw_dev = dev_to_sdw_dev(wcd938x->txdev); + if (!wcd938x->tx_sdw_dev) { + dev_err(dev, "could not get txslave with matching of dev\n"); + return -EINVAL; + } + + /* As TX is main CSR reg interface, which should not be suspended first. + * expicilty add the dependency link */ + if (!device_link_add(wcd938x->rxdev, wcd938x->txdev, DL_FLAG_STATELESS | + DL_FLAG_PM_RUNTIME)) { + dev_err(dev, "could not devlink tx and rx\n"); + return -EINVAL; + } + + if (!device_link_add(dev, wcd938x->txdev, DL_FLAG_STATELESS | + DL_FLAG_PM_RUNTIME)) { + dev_err(dev, "could not devlink wcd and tx\n"); + return -EINVAL; + } + + if (!device_link_add(dev, wcd938x->rxdev, DL_FLAG_STATELESS | + DL_FLAG_PM_RUNTIME)) { + dev_err(dev, "could not devlink wcd and rx\n"); + return -EINVAL; + } + + wcd938x->regmap = dev_get_regmap(wcd938x->txdev, NULL); + if (!wcd938x->regmap) { + dev_err(dev, "%s: tx csr regmap not found\n", __func__); + return PTR_ERR(wcd938x->regmap); + } + ret = wcd938x_set_micbias_data(wcd938x); if (ret < 0) { dev_err(dev, "%s: bad micbias pdata\n", __func__); @@ -1578,6 +1657,9 @@ static void wcd938x_unbind(struct device *dev) { struct wcd938x_priv *wcd938x = dev_get_drvdata(dev); + device_link_remove(dev, wcd938x->txdev); + device_link_remove(dev, wcd938x->rxdev); + device_link_remove(wcd938x->rxdev, wcd938x->txdev); snd_soc_unregister_component(dev); component_unbind_all(dev, wcd938x); } diff --git a/sound/soc/codecs/wcd938x.h b/sound/soc/codecs/wcd938x.h index efaa4dfc752a..9db3ab6e47a6 100644 --- a/sound/soc/codecs/wcd938x.h +++ b/sound/soc/codecs/wcd938x.h @@ -668,4 +668,53 @@ struct wcd938x_sdw_priv { extern struct regmap_config wcd938x_regmap_config; int wcd938x_handle_sdw_irq(struct wcd938x_sdw_priv *priv); +#if IS_ENABLED(CONFIG_SND_SOC_WCD938X_SDW) +int wcd938x_sdw_free(struct wcd938x_sdw_priv *wcd, + struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); +int wcd938x_sdw_set_sdw_stream(struct wcd938x_sdw_priv *wcd, + struct snd_soc_dai *dai, + void *stream, int direction); +int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai); + +struct device *wcd938x_sdw_device_get(struct device_node *np); +int wcd938x_swr_get_current_bank(struct sdw_slave *sdev); + +#else + +static inline int wcd938x_sdw_free(struct wcd938x_sdw_priv *wcd, + struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + return -EOPNOTSUPP; +} + +static inline int wcd938x_sdw_set_sdw_stream(struct wcd938x_sdw_priv *wcd, + struct snd_soc_dai *dai, + void *stream, int direction) +{ + return -EOPNOTSUPP; +} + +static inline int wcd938x_sdw_hw_params(struct wcd938x_sdw_priv *wcd, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + return -EOPNOTSUPP; +} + +static inline struct device *wcd938x_sdw_device_get(struct device_node *np) +{ + return NULL; +} + +static inline int wcd938x_swr_get_current_bank(struct sdw_slave *sdev) +{ + return 0; +} +#endif /* CONFIG_SND_SOC_WCD938X_SDW */ #endif /* __WCD938X_H__ */