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[92.233.226.227]) by smtp.googlemail.com with ESMTPSA id u195sm1532952wmu.18.2020.10.27.03.08.04 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 27 Oct 2020 03:08:05 -0700 (PDT) Subject: Re: [PATCH v12 2/2] ASoC: qcom: sc7180: Add machine driver for sound card registration To: Cheng-Yi Chiang , linux-kernel@vger.kernel.org Cc: Mark Brown , Taniya Das , Rohit kumar , Banajit Goswami , Patrick Lai , Andy Gross , Bjorn Andersson , Liam Girdwood , Rob Herring , Jaroslav Kysela , Takashi Iwai , Stephan Gerhold , Matthias Brugger , Heiko Stuebner , Srinivasa Rao , Ajye Huang , xuyuqing@huaqin.corp-partner.google.com, dianders@chromium.org, dgreid@chromium.org, tzungbi@chromium.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, alsa-devel@alsa-project.org, Ajit Pandey References: <20201027032234.1705835-1-cychiang@chromium.org> <20201027032234.1705835-3-cychiang@chromium.org> From: Srinivas Kandagatla Message-ID: Date: Tue, 27 Oct 2020 10:08:03 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20201027032234.1705835-3-cychiang@chromium.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 27/10/2020 03:22, Cheng-Yi Chiang wrote: > From: Ajit Pandey > > Add new driver to register sound card on sc7180 trogdor board and > do the required configuration for lpass cpu dai and external codecs > connected over MI2S interfaces. > > Signed-off-by: Ajit Pandey > Signed-off-by: Cheng-Yi Chiang Looks good to me, Reviewed-by: Srinivas Kandagatla > --- > Changes from v11 to v12 > - Machine driver: > - Use the definitaion of index LPASS_DP_RX in sc7180-lpass.h. > - Fix compatible string. > - Replace a comma with semicolon. > > sound/soc/qcom/Kconfig | 12 ++ > sound/soc/qcom/Makefile | 2 + > sound/soc/qcom/sc7180.c | 266 ++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 280 insertions(+) > create mode 100644 sound/soc/qcom/sc7180.c > > diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig > index 484cad31da25..41cb08bd5588 100644 > --- a/sound/soc/qcom/Kconfig > +++ b/sound/soc/qcom/Kconfig > @@ -138,4 +138,16 @@ config SND_SOC_SM8250 > SM8250 SoC-based systems. > Say Y if you want to use audio device on this SoCs. > > +config SND_SOC_SC7180 > + tristate "SoC Machine driver for SC7180 boards" > + depends on I2C > + select SND_SOC_QCOM_COMMON > + select SND_SOC_LPASS_SC7180 > + select SND_SOC_MAX98357A > + select SND_SOC_RT5682_I2C > + help > + To add support for audio on Qualcomm Technologies Inc. > + SC7180 SoC-based systems. > + Say Y if you want to use audio device on this SoCs. > + > endif #SND_SOC_QCOM > diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile > index effa4b3f58fa..1600ae55bd34 100644 > --- a/sound/soc/qcom/Makefile > +++ b/sound/soc/qcom/Makefile > @@ -18,6 +18,7 @@ obj-$(CONFIG_SND_SOC_LPASS_SC7180) += snd-soc-lpass-sc7180.o > snd-soc-storm-objs := storm.o > snd-soc-apq8016-sbc-objs := apq8016_sbc.o > snd-soc-apq8096-objs := apq8096.o > +snd-soc-sc7180-objs := sc7180.o > snd-soc-sdm845-objs := sdm845.o > snd-soc-sm8250-objs := sm8250.o > snd-soc-qcom-common-objs := common.o > @@ -25,6 +26,7 @@ snd-soc-qcom-common-objs := common.o > obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o > obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o > obj-$(CONFIG_SND_SOC_MSM8996) += snd-soc-apq8096.o > +obj-$(CONFIG_SND_SOC_SC7180) += snd-soc-sc7180.o > obj-$(CONFIG_SND_SOC_SDM845) += snd-soc-sdm845.o > obj-$(CONFIG_SND_SOC_SM8250) += snd-soc-sm8250.o > obj-$(CONFIG_SND_SOC_QCOM_COMMON) += snd-soc-qcom-common.o > diff --git a/sound/soc/qcom/sc7180.c b/sound/soc/qcom/sc7180.c > new file mode 100644 > index 000000000000..b391f64c3a80 > --- /dev/null > +++ b/sound/soc/qcom/sc7180.c > @@ -0,0 +1,266 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +// > +// Copyright (c) 2020, The Linux Foundation. All rights reserved. > +// > +// sc7180.c -- ALSA SoC Machine driver for SC7180 > + > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#include "../codecs/rt5682.h" > +#include "common.h" > +#include "lpass.h" > + > +#define DEFAULT_MCLK_RATE 19200000 > +#define RT5682_PLL1_FREQ (48000 * 512) > + > +#define DRIVER_NAME "SC7180" > + > +struct sc7180_snd_data { > + struct snd_soc_card card; > + u32 pri_mi2s_clk_count; > + struct snd_soc_jack hs_jack; > + struct snd_soc_jack hdmi_jack; > +}; > + > +static void sc7180_jack_free(struct snd_jack *jack) > +{ > + struct snd_soc_component *component = jack->private_data; > + > + snd_soc_component_set_jack(component, NULL, NULL); > +} > + > +static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd) > +{ > + struct snd_soc_card *card = rtd->card; > + struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card); > + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); > + struct snd_soc_component *component = codec_dai->component; > + struct snd_jack *jack; > + int rval; > + > + rval = snd_soc_card_jack_new( > + card, "Headset Jack", > + SND_JACK_HEADSET | > + SND_JACK_HEADPHONE | > + SND_JACK_BTN_0 | SND_JACK_BTN_1 | > + SND_JACK_BTN_2 | SND_JACK_BTN_3, > + &pdata->hs_jack, NULL, 0); > + > + if (rval < 0) { > + dev_err(card->dev, "Unable to add Headset Jack\n"); > + return rval; > + } > + > + jack = pdata->hs_jack.jack; > + > + snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); > + snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); > + snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); > + snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); > + > + jack->private_data = component; > + jack->private_free = sc7180_jack_free; > + > + return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL); > +} > + > +static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd) > +{ > + struct snd_soc_card *card = rtd->card; > + struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card); > + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); > + struct snd_soc_component *component = codec_dai->component; > + struct snd_jack *jack; > + int rval; > + > + rval = snd_soc_card_jack_new( > + card, "HDMI Jack", > + SND_JACK_LINEOUT, > + &pdata->hdmi_jack, NULL, 0); > + > + if (rval < 0) { > + dev_err(card->dev, "Unable to add HDMI Jack\n"); > + return rval; > + } > + > + jack = pdata->hdmi_jack.jack; > + jack->private_data = component; > + jack->private_free = sc7180_jack_free; > + > + return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL); > +} > + > +static int sc7180_init(struct snd_soc_pcm_runtime *rtd) > +{ > + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); > + > + switch (cpu_dai->id) { > + case MI2S_PRIMARY: > + return sc7180_headset_init(rtd); > + case MI2S_SECONDARY: > + return 0; > + case LPASS_DP_RX: > + return sc7180_hdmi_init(rtd); > + default: > + dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, > + cpu_dai->id); > + return -EINVAL; > + } > + return 0; > +} > + > +static int sc7180_snd_startup(struct snd_pcm_substream *substream) > +{ > + struct snd_soc_pcm_runtime *rtd = substream->private_data; > + struct snd_soc_card *card = rtd->card; > + struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card); > + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); > + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); > + int ret; > + > + switch (cpu_dai->id) { > + case MI2S_PRIMARY: > + if (++data->pri_mi2s_clk_count == 1) { > + snd_soc_dai_set_sysclk(cpu_dai, > + LPASS_MCLK0, > + DEFAULT_MCLK_RATE, > + SNDRV_PCM_STREAM_PLAYBACK); > + } > + > + snd_soc_dai_set_fmt(codec_dai, > + SND_SOC_DAIFMT_CBS_CFS | > + SND_SOC_DAIFMT_NB_NF | > + SND_SOC_DAIFMT_I2S); > + > + /* Configure PLL1 for codec */ > + ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK, > + DEFAULT_MCLK_RATE, RT5682_PLL1_FREQ); > + if (ret) { > + dev_err(rtd->dev, "can't set codec pll: %d\n", ret); > + return ret; > + } > + > + /* Configure sysclk for codec */ > + ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1, > + RT5682_PLL1_FREQ, > + SND_SOC_CLOCK_IN); > + if (ret) > + dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", > + ret); > + > + break; > + case MI2S_SECONDARY: > + break; > + case LPASS_DP_RX: > + break; > + default: > + dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, > + cpu_dai->id); > + return -EINVAL; > + } > + return 0; > +} > + > +static void sc7180_snd_shutdown(struct snd_pcm_substream *substream) > +{ > + struct snd_soc_pcm_runtime *rtd = substream->private_data; > + struct snd_soc_card *card = rtd->card; > + struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card); > + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); > + > + switch (cpu_dai->id) { > + case MI2S_PRIMARY: > + if (--data->pri_mi2s_clk_count == 0) { > + snd_soc_dai_set_sysclk(cpu_dai, > + LPASS_MCLK0, > + 0, > + SNDRV_PCM_STREAM_PLAYBACK); > + } > + break; > + case MI2S_SECONDARY: > + break; > + case LPASS_DP_RX: > + break; > + default: > + dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, > + cpu_dai->id); > + break; > + } > +} > + > +static const struct snd_soc_ops sc7180_ops = { > + .startup = sc7180_snd_startup, > + .shutdown = sc7180_snd_shutdown, > +}; > + > +static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = { > + SND_SOC_DAPM_HP("Headphone Jack", NULL), > + SND_SOC_DAPM_MIC("Headset Mic", NULL), > +}; > + > +static void sc7180_add_ops(struct snd_soc_card *card) > +{ > + struct snd_soc_dai_link *link; > + int i; > + > + for_each_card_prelinks(card, i, link) { > + link->ops = &sc7180_ops; > + link->init = sc7180_init; > + } > +} > + > +static int sc7180_snd_platform_probe(struct platform_device *pdev) > +{ > + struct snd_soc_card *card; > + struct sc7180_snd_data *data; > + struct device *dev = &pdev->dev; > + int ret; > + > + /* Allocate the private data */ > + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); > + if (!data) > + return -ENOMEM; > + > + card = &data->card; > + snd_soc_card_set_drvdata(card, data); > + > + card->owner = THIS_MODULE; > + card->driver_name = DRIVER_NAME; > + card->dev = dev; > + card->dapm_widgets = sc7180_snd_widgets; > + card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets); > + > + ret = qcom_snd_parse_of(card); > + if (ret) > + return ret; > + > + sc7180_add_ops(card); > + > + return devm_snd_soc_register_card(dev, card); > +} > + > +static const struct of_device_id sc7180_snd_device_id[] = { > + { .compatible = "google,sc7180-trogdor"}, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, sc7180_snd_device_id); > + > +static struct platform_driver sc7180_snd_driver = { > + .probe = sc7180_snd_platform_probe, > + .driver = { > + .name = "msm-snd-sc7180", > + .of_match_table = sc7180_snd_device_id, > + }, > +}; > +module_platform_driver(sc7180_snd_driver); > + > +MODULE_DESCRIPTION("sc7180 ASoC Machine Driver"); > +MODULE_LICENSE("GPL v2"); >