* [PATCH v2 1/2] ASoC: lochnagar: Add device tree binding document @ 2019-03-20 17:37 Charles Keepax 2019-03-20 17:37 ` [PATCH v2 2/2] ASoC: lochnagar: Add driver to support Lochnagar 2 sound card Charles Keepax 2019-03-21 15:06 ` Applied "ASoC: lochnagar: Add device tree binding document" " Mark Brown 0 siblings, 2 replies; 4+ messages in thread From: Charles Keepax @ 2019-03-20 17:37 UTC (permalink / raw) To: broonie, lgirdwood, robh+dt, mark.rutland; +Cc: devicetree, alsa-devel, patches Lochnagar is an evaluation and development board for Cirrus Logic Smart CODEC and Amp devices. It allows the connection of most Cirrus Logic devices on mini-cards, as well as allowing connection of various application processor systems to provide a full evaluation platform. This driver supports the board controller chip on the Lochnagar board. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> --- Changes since v1: - Made clock name a bit more generic Thanks, Charles .../devicetree/bindings/sound/cirrus,lochnagar.txt | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt diff --git a/Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt b/Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt new file mode 100644 index 0000000000000..41ae2699f07a9 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt @@ -0,0 +1,39 @@ +Cirrus Logic Lochnagar Audio Development Board + +Lochnagar is an evaluation and development board for Cirrus Logic +Smart CODEC and Amp devices. It allows the connection of most Cirrus +Logic devices on mini-cards, as well as allowing connection of +various application processor systems to provide a full evaluation +platform. Audio system topology, clocking and power can all be +controlled through the Lochnagar, allowing the device under test +to be used in a variety of possible use cases. + +This binding document describes the binding for the audio portion +of the driver. + +This binding must be part of the Lochnagar MFD binding: + [4] ../mfd/cirrus,lochnagar.txt + +Required properties: + + - compatible : One of the following strings: + "cirrus,lochnagar2-soundcard" + + - #sound-dai-cells : Must be set to 1. + + - clocks : Contains an entry for each entry in clock-names. + - clock-names : Must include the following clocks: + "mclk" Master clock source for the sound card, should normally + be set to LOCHNAGAR_SOUNDCARD_MCLK provided by the Lochnagar + clock driver. + +Example: + +lochnagar-sc { + compatible = "cirrus,lochnagar2-soundcard"; + + #sound-dai-cells = <1>; + + clocks = <&lochnagar_clk LOCHNAGAR_SOUNDCARD_MCLK>; + clock-names = "mclk"; +}; -- 2.11.0 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v2 2/2] ASoC: lochnagar: Add driver to support Lochnagar 2 sound card 2019-03-20 17:37 [PATCH v2 1/2] ASoC: lochnagar: Add device tree binding document Charles Keepax @ 2019-03-20 17:37 ` Charles Keepax 2019-03-21 15:06 ` Applied "ASoC: lochnagar: Add driver to support Lochnagar 2 sound card" to the asoc tree Mark Brown 2019-03-21 15:06 ` Applied "ASoC: lochnagar: Add device tree binding document" " Mark Brown 1 sibling, 1 reply; 4+ messages in thread From: Charles Keepax @ 2019-03-20 17:37 UTC (permalink / raw) To: broonie, lgirdwood, robh+dt, mark.rutland; +Cc: devicetree, alsa-devel, patches From: Piotr Stankiewicz <piotrs@opensource.cirrus.com> Lochnagar is an evaluation and development board for Cirrus Logic Smart CODEC and Amp devices. It allows the connection of most Cirrus Logic devices on mini-cards, as well as allowing connection of various application processor systems to provide a full evaluation platform. Lochnagar 2 provides a set of line inputs/outputs, and a USB audio device. This driver adds support for these analog line connections and the Lochnagar side of the USB audio link. Signed-off-by: Piotr Stankiewicz <piotrs@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> --- Changes since v1: - Made clock name a bit more generic Thanks, Charles MAINTAINERS | 2 + sound/soc/codecs/Kconfig | 8 ++ sound/soc/codecs/Makefile | 2 + sound/soc/codecs/lochnagar-sc.c | 266 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 278 insertions(+) create mode 100644 sound/soc/codecs/lochnagar-sc.c diff --git a/MAINTAINERS b/MAINTAINERS index e17ebf70b5480..1bc9f64ab0e46 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3799,6 +3799,7 @@ F: drivers/clk/clk-lochnagar.c F: drivers/mfd/lochnagar-i2c.c F: drivers/pinctrl/cirrus/pinctrl-lochnagar.c F: drivers/regulator/lochnagar-regulator.c +F: sound/soc/codecs/lochnagar-sc.c F: include/dt-bindings/clk/lochnagar.h F: include/dt-bindings/pinctrl/lochnagar.h F: include/linux/mfd/lochnagar* @@ -3806,6 +3807,7 @@ F: Documentation/devicetree/bindings/mfd/cirrus,lochnagar.txt F: Documentation/devicetree/bindings/clock/cirrus,lochnagar.txt F: Documentation/devicetree/bindings/pinctrl/cirrus,lochnagar.txt F: Documentation/devicetree/bindings/regulator/cirrus,lochnagar.txt +F: Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt CISCO FCOE HBA DRIVER M: Satish Kharat <satishkh@cisco.com> diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 419114edfd57d..05f16632296bf 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -94,6 +94,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_JZ4725B_CODEC select SND_SOC_LM4857 if I2C select SND_SOC_LM49453 if I2C + select SND_SOC_LOCHNAGAR_SC select SND_SOC_MAX98088 if I2C select SND_SOC_MAX98090 if I2C select SND_SOC_MAX98095 if I2C @@ -688,6 +689,13 @@ config SND_SOC_ISABELLE config SND_SOC_LM49453 tristate +config SND_SOC_LOCHNAGAR_SC + tristate "Lochnagar Sound Card" + depends on MFD_LOCHNAGAR + help + This driver support the sound card functionality of the Cirrus + Logic Lochnagar audio development board. + config SND_SOC_MAX98088 tristate "Maxim MAX98088/9 Low-Power, Stereo Audio Codec" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index aab2ad95a137d..a597de9460272 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -91,6 +91,7 @@ snd-soc-jz4725b-codec-objs := jz4725b.o snd-soc-l3-objs := l3.o snd-soc-lm4857-objs := lm4857.o snd-soc-lm49453-objs := lm49453.o +snd-soc-lochnagar-sc-objs := lochnagar-sc.o snd-soc-max9759-objs := max9759.o snd-soc-max9768-objs := max9768.o snd-soc-max98088-objs := max98088.o @@ -364,6 +365,7 @@ obj-$(CONFIG_SND_SOC_JZ4725B_CODEC) += snd-soc-jz4725b-codec.o obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o obj-$(CONFIG_SND_SOC_LM4857) += snd-soc-lm4857.o obj-$(CONFIG_SND_SOC_LM49453) += snd-soc-lm49453.o +obj-$(CONFIG_SND_SOC_LOCHNAGAR_SC) += snd-soc-lochnagar-sc.o obj-$(CONFIG_SND_SOC_MAX9759) += snd-soc-max9759.o obj-$(CONFIG_SND_SOC_MAX9768) += snd-soc-max9768.o obj-$(CONFIG_SND_SOC_MAX98088) += snd-soc-max98088.o diff --git a/sound/soc/codecs/lochnagar-sc.c b/sound/soc/codecs/lochnagar-sc.c new file mode 100644 index 0000000000000..3209b39e46aff --- /dev/null +++ b/sound/soc/codecs/lochnagar-sc.c @@ -0,0 +1,266 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Lochnagar sound card driver +// +// Copyright (c) 2017-2019 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. +// +// Author: Charles Keepax <ckeepax@opensource.cirrus.com> +// Piotr Stankiewicz <piotrs@opensource.cirrus.com> + +#include <linux/clk.h> +#include <linux/module.h> +#include <sound/soc.h> + +#include <linux/mfd/lochnagar.h> +#include <linux/mfd/lochnagar1_regs.h> +#include <linux/mfd/lochnagar2_regs.h> + +struct lochnagar_sc_priv { + struct clk *mclk; +}; + +static const struct snd_soc_dapm_widget lochnagar_sc_widgets[] = { + SND_SOC_DAPM_LINE("Line Jack", NULL), + SND_SOC_DAPM_LINE("USB Audio", NULL), +}; + +static const struct snd_soc_dapm_route lochnagar_sc_routes[] = { + { "Line Jack", NULL, "AIF1 Playback" }, + { "AIF1 Capture", NULL, "Line Jack" }, + + { "USB Audio", NULL, "USB1 Playback" }, + { "USB Audio", NULL, "USB2 Playback" }, + { "USB1 Capture", NULL, "USB Audio" }, + { "USB2 Capture", NULL, "USB Audio" }, +}; + +static const unsigned int lochnagar_sc_chan_vals[] = { + 4, 8, +}; + +static const struct snd_pcm_hw_constraint_list lochnagar_sc_chan_constraint = { + .count = ARRAY_SIZE(lochnagar_sc_chan_vals), + .list = lochnagar_sc_chan_vals, +}; + +static const unsigned int lochnagar_sc_rate_vals[] = { + 8000, 16000, 24000, 32000, 48000, 96000, 192000, + 22050, 44100, 88200, 176400, +}; + +static const struct snd_pcm_hw_constraint_list lochnagar_sc_rate_constraint = { + .count = ARRAY_SIZE(lochnagar_sc_rate_vals), + .list = lochnagar_sc_rate_vals, +}; + +static int lochnagar_sc_hw_rule_rate(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_interval range = { + .min = 8000, + .max = 24576000 / hw_param_interval(params, rule->deps[0])->max, + }; + + return snd_interval_refine(hw_param_interval(params, rule->var), + &range); +} + +static int lochnagar_sc_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *comp = dai->component; + struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp); + int ret; + + ret = snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &lochnagar_sc_rate_constraint); + if (ret) + return ret; + + return snd_pcm_hw_rule_add(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + lochnagar_sc_hw_rule_rate, priv, + SNDRV_PCM_HW_PARAM_FRAME_BITS, -1); +} + +static int lochnagar_sc_line_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *comp = dai->component; + struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp); + int ret; + + ret = clk_prepare_enable(priv->mclk); + if (ret < 0) { + dev_err(dai->dev, "Failed to enable MCLK: %d\n", ret); + return ret; + } + + ret = lochnagar_sc_startup(substream, dai); + if (ret) + return ret; + + return snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &lochnagar_sc_chan_constraint); +} + +static void lochnagar_sc_line_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *comp = dai->component; + struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp); + + clk_disable_unprepare(priv->mclk); +} + +static int lochnagar_sc_check_fmt(struct snd_soc_dai *dai, unsigned int fmt, + unsigned int tar) +{ + tar |= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF; + + if ((fmt & ~SND_SOC_DAIFMT_CLOCK_MASK) != tar) + return -EINVAL; + + return 0; +} + +static int lochnagar_sc_set_line_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + return lochnagar_sc_check_fmt(dai, fmt, SND_SOC_DAIFMT_CBS_CFS); +} + +static int lochnagar_sc_set_usb_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + return lochnagar_sc_check_fmt(dai, fmt, SND_SOC_DAIFMT_CBM_CFM); +} + +static const struct snd_soc_dai_ops lochnagar_sc_line_ops = { + .startup = lochnagar_sc_line_startup, + .shutdown = lochnagar_sc_line_shutdown, + .set_fmt = lochnagar_sc_set_line_fmt, +}; + +static const struct snd_soc_dai_ops lochnagar_sc_usb_ops = { + .startup = lochnagar_sc_startup, + .set_fmt = lochnagar_sc_set_usb_fmt, +}; + +static struct snd_soc_dai_driver lochnagar_sc_dai[] = { + { + .name = "lochnagar-line", + .playback = { + .stream_name = "AIF1 Playback", + .channels_min = 4, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "AIF1 Capture", + .channels_min = 4, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &lochnagar_sc_line_ops, + .symmetric_rates = true, + .symmetric_samplebits = true, + }, + { + .name = "lochnagar-usb1", + .playback = { + .stream_name = "USB1 Playback", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "USB1 Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &lochnagar_sc_usb_ops, + .symmetric_rates = true, + .symmetric_samplebits = true, + }, + { + .name = "lochnagar-usb2", + .playback = { + .stream_name = "USB2 Playback", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "USB2 Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &lochnagar_sc_usb_ops, + .symmetric_rates = true, + .symmetric_samplebits = true, + }, +}; + +static const struct snd_soc_component_driver lochnagar_sc_driver = { + .non_legacy_dai_naming = 1, + + .dapm_widgets = lochnagar_sc_widgets, + .num_dapm_widgets = ARRAY_SIZE(lochnagar_sc_widgets), + .dapm_routes = lochnagar_sc_routes, + .num_dapm_routes = ARRAY_SIZE(lochnagar_sc_routes), +}; + +static int lochnagar_sc_probe(struct platform_device *pdev) +{ + struct lochnagar_sc_priv *priv; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->mclk = devm_clk_get(&pdev->dev, "mclk"); + if (IS_ERR(priv->mclk)) { + ret = PTR_ERR(priv->mclk); + dev_err(&pdev->dev, "Failed to get MCLK: %d\n", ret); + return ret; + } + + platform_set_drvdata(pdev, priv); + + return devm_snd_soc_register_component(&pdev->dev, + &lochnagar_sc_driver, + lochnagar_sc_dai, + ARRAY_SIZE(lochnagar_sc_dai)); +} + +static const struct of_device_id lochnagar_of_match[] = { + { .compatible = "cirrus,lochnagar2-soundcard" }, + {} +}; +MODULE_DEVICE_TABLE(of, lochnagar_of_match); + +static struct platform_driver lochnagar_sc_codec_driver = { + .driver = { + .name = "lochnagar-soundcard", + .of_match_table = of_match_ptr(lochnagar_of_match), + }, + + .probe = lochnagar_sc_probe, +}; +module_platform_driver(lochnagar_sc_codec_driver); + +MODULE_DESCRIPTION("ASoC Lochnagar Sound Card Driver"); +MODULE_AUTHOR("Piotr Stankiewicz <piotrs@opensource.cirrus.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:lochnagar-soundcard"); -- 2.11.0 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Applied "ASoC: lochnagar: Add driver to support Lochnagar 2 sound card" to the asoc tree 2019-03-20 17:37 ` [PATCH v2 2/2] ASoC: lochnagar: Add driver to support Lochnagar 2 sound card Charles Keepax @ 2019-03-21 15:06 ` Mark Brown 0 siblings, 0 replies; 4+ messages in thread From: Mark Brown @ 2019-03-21 15:06 UTC (permalink / raw) To: Piotr Stankiewicz Cc: mark.rutland, devicetree, alsa-devel, Charles Keepax, patches, lgirdwood, robh+dt, broonie The patch ASoC: lochnagar: Add driver to support Lochnagar 2 sound card has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 16123412a6283bcf956f1a377f2e799a79c2b439 Mon Sep 17 00:00:00 2001 From: Piotr Stankiewicz <piotrs@opensource.cirrus.com> Date: Wed, 20 Mar 2019 17:37:32 +0000 Subject: [PATCH] ASoC: lochnagar: Add driver to support Lochnagar 2 sound card Lochnagar is an evaluation and development board for Cirrus Logic Smart CODEC and Amp devices. It allows the connection of most Cirrus Logic devices on mini-cards, as well as allowing connection of various application processor systems to provide a full evaluation platform. Lochnagar 2 provides a set of line inputs/outputs, and a USB audio device. This driver adds support for these analog line connections and the Lochnagar side of the USB audio link. Signed-off-by: Piotr Stankiewicz <piotrs@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- MAINTAINERS | 2 + sound/soc/codecs/Kconfig | 8 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/lochnagar-sc.c | 266 ++++++++++++++++++++++++++++++++ 4 files changed, 278 insertions(+) create mode 100644 sound/soc/codecs/lochnagar-sc.c diff --git a/MAINTAINERS b/MAINTAINERS index e17ebf70b548..1bc9f64ab0e4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3799,6 +3799,7 @@ F: drivers/clk/clk-lochnagar.c F: drivers/mfd/lochnagar-i2c.c F: drivers/pinctrl/cirrus/pinctrl-lochnagar.c F: drivers/regulator/lochnagar-regulator.c +F: sound/soc/codecs/lochnagar-sc.c F: include/dt-bindings/clk/lochnagar.h F: include/dt-bindings/pinctrl/lochnagar.h F: include/linux/mfd/lochnagar* @@ -3806,6 +3807,7 @@ F: Documentation/devicetree/bindings/mfd/cirrus,lochnagar.txt F: Documentation/devicetree/bindings/clock/cirrus,lochnagar.txt F: Documentation/devicetree/bindings/pinctrl/cirrus,lochnagar.txt F: Documentation/devicetree/bindings/regulator/cirrus,lochnagar.txt +F: Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt CISCO FCOE HBA DRIVER M: Satish Kharat <satishkh@cisco.com> diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 419114edfd57..05f16632296b 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -94,6 +94,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_JZ4725B_CODEC select SND_SOC_LM4857 if I2C select SND_SOC_LM49453 if I2C + select SND_SOC_LOCHNAGAR_SC select SND_SOC_MAX98088 if I2C select SND_SOC_MAX98090 if I2C select SND_SOC_MAX98095 if I2C @@ -688,6 +689,13 @@ config SND_SOC_ISABELLE config SND_SOC_LM49453 tristate +config SND_SOC_LOCHNAGAR_SC + tristate "Lochnagar Sound Card" + depends on MFD_LOCHNAGAR + help + This driver support the sound card functionality of the Cirrus + Logic Lochnagar audio development board. + config SND_SOC_MAX98088 tristate "Maxim MAX98088/9 Low-Power, Stereo Audio Codec" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index aab2ad95a137..a597de946027 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -91,6 +91,7 @@ snd-soc-jz4725b-codec-objs := jz4725b.o snd-soc-l3-objs := l3.o snd-soc-lm4857-objs := lm4857.o snd-soc-lm49453-objs := lm49453.o +snd-soc-lochnagar-sc-objs := lochnagar-sc.o snd-soc-max9759-objs := max9759.o snd-soc-max9768-objs := max9768.o snd-soc-max98088-objs := max98088.o @@ -364,6 +365,7 @@ obj-$(CONFIG_SND_SOC_JZ4725B_CODEC) += snd-soc-jz4725b-codec.o obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o obj-$(CONFIG_SND_SOC_LM4857) += snd-soc-lm4857.o obj-$(CONFIG_SND_SOC_LM49453) += snd-soc-lm49453.o +obj-$(CONFIG_SND_SOC_LOCHNAGAR_SC) += snd-soc-lochnagar-sc.o obj-$(CONFIG_SND_SOC_MAX9759) += snd-soc-max9759.o obj-$(CONFIG_SND_SOC_MAX9768) += snd-soc-max9768.o obj-$(CONFIG_SND_SOC_MAX98088) += snd-soc-max98088.o diff --git a/sound/soc/codecs/lochnagar-sc.c b/sound/soc/codecs/lochnagar-sc.c new file mode 100644 index 000000000000..3209b39e46af --- /dev/null +++ b/sound/soc/codecs/lochnagar-sc.c @@ -0,0 +1,266 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Lochnagar sound card driver +// +// Copyright (c) 2017-2019 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. +// +// Author: Charles Keepax <ckeepax@opensource.cirrus.com> +// Piotr Stankiewicz <piotrs@opensource.cirrus.com> + +#include <linux/clk.h> +#include <linux/module.h> +#include <sound/soc.h> + +#include <linux/mfd/lochnagar.h> +#include <linux/mfd/lochnagar1_regs.h> +#include <linux/mfd/lochnagar2_regs.h> + +struct lochnagar_sc_priv { + struct clk *mclk; +}; + +static const struct snd_soc_dapm_widget lochnagar_sc_widgets[] = { + SND_SOC_DAPM_LINE("Line Jack", NULL), + SND_SOC_DAPM_LINE("USB Audio", NULL), +}; + +static const struct snd_soc_dapm_route lochnagar_sc_routes[] = { + { "Line Jack", NULL, "AIF1 Playback" }, + { "AIF1 Capture", NULL, "Line Jack" }, + + { "USB Audio", NULL, "USB1 Playback" }, + { "USB Audio", NULL, "USB2 Playback" }, + { "USB1 Capture", NULL, "USB Audio" }, + { "USB2 Capture", NULL, "USB Audio" }, +}; + +static const unsigned int lochnagar_sc_chan_vals[] = { + 4, 8, +}; + +static const struct snd_pcm_hw_constraint_list lochnagar_sc_chan_constraint = { + .count = ARRAY_SIZE(lochnagar_sc_chan_vals), + .list = lochnagar_sc_chan_vals, +}; + +static const unsigned int lochnagar_sc_rate_vals[] = { + 8000, 16000, 24000, 32000, 48000, 96000, 192000, + 22050, 44100, 88200, 176400, +}; + +static const struct snd_pcm_hw_constraint_list lochnagar_sc_rate_constraint = { + .count = ARRAY_SIZE(lochnagar_sc_rate_vals), + .list = lochnagar_sc_rate_vals, +}; + +static int lochnagar_sc_hw_rule_rate(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_interval range = { + .min = 8000, + .max = 24576000 / hw_param_interval(params, rule->deps[0])->max, + }; + + return snd_interval_refine(hw_param_interval(params, rule->var), + &range); +} + +static int lochnagar_sc_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *comp = dai->component; + struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp); + int ret; + + ret = snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &lochnagar_sc_rate_constraint); + if (ret) + return ret; + + return snd_pcm_hw_rule_add(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + lochnagar_sc_hw_rule_rate, priv, + SNDRV_PCM_HW_PARAM_FRAME_BITS, -1); +} + +static int lochnagar_sc_line_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *comp = dai->component; + struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp); + int ret; + + ret = clk_prepare_enable(priv->mclk); + if (ret < 0) { + dev_err(dai->dev, "Failed to enable MCLK: %d\n", ret); + return ret; + } + + ret = lochnagar_sc_startup(substream, dai); + if (ret) + return ret; + + return snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &lochnagar_sc_chan_constraint); +} + +static void lochnagar_sc_line_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *comp = dai->component; + struct lochnagar_sc_priv *priv = snd_soc_component_get_drvdata(comp); + + clk_disable_unprepare(priv->mclk); +} + +static int lochnagar_sc_check_fmt(struct snd_soc_dai *dai, unsigned int fmt, + unsigned int tar) +{ + tar |= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF; + + if ((fmt & ~SND_SOC_DAIFMT_CLOCK_MASK) != tar) + return -EINVAL; + + return 0; +} + +static int lochnagar_sc_set_line_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + return lochnagar_sc_check_fmt(dai, fmt, SND_SOC_DAIFMT_CBS_CFS); +} + +static int lochnagar_sc_set_usb_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + return lochnagar_sc_check_fmt(dai, fmt, SND_SOC_DAIFMT_CBM_CFM); +} + +static const struct snd_soc_dai_ops lochnagar_sc_line_ops = { + .startup = lochnagar_sc_line_startup, + .shutdown = lochnagar_sc_line_shutdown, + .set_fmt = lochnagar_sc_set_line_fmt, +}; + +static const struct snd_soc_dai_ops lochnagar_sc_usb_ops = { + .startup = lochnagar_sc_startup, + .set_fmt = lochnagar_sc_set_usb_fmt, +}; + +static struct snd_soc_dai_driver lochnagar_sc_dai[] = { + { + .name = "lochnagar-line", + .playback = { + .stream_name = "AIF1 Playback", + .channels_min = 4, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "AIF1 Capture", + .channels_min = 4, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &lochnagar_sc_line_ops, + .symmetric_rates = true, + .symmetric_samplebits = true, + }, + { + .name = "lochnagar-usb1", + .playback = { + .stream_name = "USB1 Playback", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "USB1 Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &lochnagar_sc_usb_ops, + .symmetric_rates = true, + .symmetric_samplebits = true, + }, + { + .name = "lochnagar-usb2", + .playback = { + .stream_name = "USB2 Playback", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "USB2 Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &lochnagar_sc_usb_ops, + .symmetric_rates = true, + .symmetric_samplebits = true, + }, +}; + +static const struct snd_soc_component_driver lochnagar_sc_driver = { + .non_legacy_dai_naming = 1, + + .dapm_widgets = lochnagar_sc_widgets, + .num_dapm_widgets = ARRAY_SIZE(lochnagar_sc_widgets), + .dapm_routes = lochnagar_sc_routes, + .num_dapm_routes = ARRAY_SIZE(lochnagar_sc_routes), +}; + +static int lochnagar_sc_probe(struct platform_device *pdev) +{ + struct lochnagar_sc_priv *priv; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->mclk = devm_clk_get(&pdev->dev, "mclk"); + if (IS_ERR(priv->mclk)) { + ret = PTR_ERR(priv->mclk); + dev_err(&pdev->dev, "Failed to get MCLK: %d\n", ret); + return ret; + } + + platform_set_drvdata(pdev, priv); + + return devm_snd_soc_register_component(&pdev->dev, + &lochnagar_sc_driver, + lochnagar_sc_dai, + ARRAY_SIZE(lochnagar_sc_dai)); +} + +static const struct of_device_id lochnagar_of_match[] = { + { .compatible = "cirrus,lochnagar2-soundcard" }, + {} +}; +MODULE_DEVICE_TABLE(of, lochnagar_of_match); + +static struct platform_driver lochnagar_sc_codec_driver = { + .driver = { + .name = "lochnagar-soundcard", + .of_match_table = of_match_ptr(lochnagar_of_match), + }, + + .probe = lochnagar_sc_probe, +}; +module_platform_driver(lochnagar_sc_codec_driver); + +MODULE_DESCRIPTION("ASoC Lochnagar Sound Card Driver"); +MODULE_AUTHOR("Piotr Stankiewicz <piotrs@opensource.cirrus.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:lochnagar-soundcard"); -- 2.20.1 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Applied "ASoC: lochnagar: Add device tree binding document" to the asoc tree 2019-03-20 17:37 [PATCH v2 1/2] ASoC: lochnagar: Add device tree binding document Charles Keepax 2019-03-20 17:37 ` [PATCH v2 2/2] ASoC: lochnagar: Add driver to support Lochnagar 2 sound card Charles Keepax @ 2019-03-21 15:06 ` Mark Brown 1 sibling, 0 replies; 4+ messages in thread From: Mark Brown @ 2019-03-21 15:06 UTC (permalink / raw) To: Charles Keepax Cc: mark.rutland, devicetree, alsa-devel, patches, lgirdwood, robh+dt, broonie The patch ASoC: lochnagar: Add device tree binding document has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From d9b27d50340c4c90637ebf24106c9064992e2f2a Mon Sep 17 00:00:00 2001 From: Charles Keepax <ckeepax@opensource.cirrus.com> Date: Wed, 20 Mar 2019 17:37:31 +0000 Subject: [PATCH] ASoC: lochnagar: Add device tree binding document Lochnagar is an evaluation and development board for Cirrus Logic Smart CODEC and Amp devices. It allows the connection of most Cirrus Logic devices on mini-cards, as well as allowing connection of various application processor systems to provide a full evaluation platform. This driver supports the board controller chip on the Lochnagar board. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- .../bindings/sound/cirrus,lochnagar.txt | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt diff --git a/Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt b/Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt new file mode 100644 index 000000000000..41ae2699f07a --- /dev/null +++ b/Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt @@ -0,0 +1,39 @@ +Cirrus Logic Lochnagar Audio Development Board + +Lochnagar is an evaluation and development board for Cirrus Logic +Smart CODEC and Amp devices. It allows the connection of most Cirrus +Logic devices on mini-cards, as well as allowing connection of +various application processor systems to provide a full evaluation +platform. Audio system topology, clocking and power can all be +controlled through the Lochnagar, allowing the device under test +to be used in a variety of possible use cases. + +This binding document describes the binding for the audio portion +of the driver. + +This binding must be part of the Lochnagar MFD binding: + [4] ../mfd/cirrus,lochnagar.txt + +Required properties: + + - compatible : One of the following strings: + "cirrus,lochnagar2-soundcard" + + - #sound-dai-cells : Must be set to 1. + + - clocks : Contains an entry for each entry in clock-names. + - clock-names : Must include the following clocks: + "mclk" Master clock source for the sound card, should normally + be set to LOCHNAGAR_SOUNDCARD_MCLK provided by the Lochnagar + clock driver. + +Example: + +lochnagar-sc { + compatible = "cirrus,lochnagar2-soundcard"; + + #sound-dai-cells = <1>; + + clocks = <&lochnagar_clk LOCHNAGAR_SOUNDCARD_MCLK>; + clock-names = "mclk"; +}; -- 2.20.1 ^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-03-21 15:06 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2019-03-20 17:37 [PATCH v2 1/2] ASoC: lochnagar: Add device tree binding document Charles Keepax 2019-03-20 17:37 ` [PATCH v2 2/2] ASoC: lochnagar: Add driver to support Lochnagar 2 sound card Charles Keepax 2019-03-21 15:06 ` Applied "ASoC: lochnagar: Add driver to support Lochnagar 2 sound card" to the asoc tree Mark Brown 2019-03-21 15:06 ` Applied "ASoC: lochnagar: Add device tree binding document" " Mark Brown
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