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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
| commit | cf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch) | |
| tree | 757a3d280760c654767631cab5ad8af2d86d1848 /sound/soc/codecs/cs40l50-codec.c | |
| download | linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip | |
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij:
"Core changes:
- Use the non-blocking mux_state_try_select() in the generic MUX pin
control back-end
- Free pin maps on pinctrl_generic_to_map() failure in the core
helpers
New hardware pin control:
- Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC
(this is for the low power audio, LPASS = Low Power Audio SubSystem
portions)
- Upboard support on top of the Intel pin controller
- Apple T6030 and T6031 support (just compatible strings)
- Samsung Exynos 8855 SoC
- Mediatek MT6858 SoC
- Rockchip RK3308B and RV1106 SoCs
- Airoha EN7523 and AN7563 SoCs
Improvements:
- Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable
- Qualcomm improvements on top of the Qualcomm PDC (power domain
controller) irqchip improvements from tglx:s tree
- Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups
- The NPCM8xx driver has been put into shape fixing many pin and
group definitions
- Some non-urgent Tegra 264 pin assignments are fixed up
- Some non-urgent fixups to Airoha AN7581 and AN7583 registers and
pin assignments, missing features etc"
* tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits)
dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema
pinctrl: meson: sync some modify from A4
pinctrl: meson: a4: Add input enable pin configuration
pinctrl: realtek: rtd1625: remove unused group name spdif_sel
pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13
dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema
Revert "Merge branch 'ib-rsk7204' into devel"
pinctrl: rockchip: Add RV1106 pinctrl support
dt-bindings: pinctrl: rockchip: Add RV1106 compatible
pinctrl: rockchip: Decode drive strength in the get function
pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable
pinctrl: airoha: add support of an7563 SoC
dt-bindings: pinctrl: airoha: add support of an7563 pin controller
pinctrl: airoha: try to find chip scu node by phandle first
pinctrl: airoha: add support of en7523 SoC
dt-bindings: pinctrl: airoha: add support of en7523 pin controller
pinctrl: airoha: an7583: add support for olt pinmux
pinctrl: airoha: an7583: add support for pon_alt pinmux
pinctrl: airoha: an7583: add support for npu_uart pinmux
dt-bindings: pinctrl: airoha: an7583: add missed features
...
Diffstat (limited to 'sound/soc/codecs/cs40l50-codec.c')
| -rw-r--r-- | sound/soc/codecs/cs40l50-codec.c | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs40l50-codec.c b/sound/soc/codecs/cs40l50-codec.c new file mode 100644 index 000000000..676367163 --- /dev/null +++ b/sound/soc/codecs/cs40l50-codec.c @@ -0,0 +1,307 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// CS40L50 Advanced Haptic Driver with waveform memory, +// integrated DSP, and closed-loop algorithms +// +// Copyright 2024 Cirrus Logic, Inc. +// +// Author: James Ogletree <james.ogletree@cirrus.com> + +#include <linux/bitfield.h> +#include <linux/mfd/cs40l50.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#define CS40L50_REFCLK_INPUT 0x2C04 +#define CS40L50_ASP_CONTROL2 0x4808 +#define CS40L50_ASP_DATA_CONTROL5 0x4840 + +/* PLL Config */ +#define CS40L50_PLL_REFCLK_BCLK 0x0 +#define CS40L50_PLL_REFCLK_MCLK 0x5 +#define CS40L50_PLL_REEFCLK_MCLK_CFG 0x00 +#define CS40L50_PLL_REFCLK_LOOP_MASK BIT(11) +#define CS40L50_PLL_REFCLK_OPEN_LOOP 1 +#define CS40L50_PLL_REFCLK_CLOSED_LOOP 0 +#define CS40L50_PLL_REFCLK_LOOP_SHIFT 11 +#define CS40L50_PLL_REFCLK_FREQ_MASK GENMASK(10, 5) +#define CS40L50_PLL_REFCLK_FREQ_SHIFT 5 +#define CS40L50_PLL_REFCLK_SEL_MASK GENMASK(2, 0) +#define CS40L50_BCLK_RATIO_DEFAULT 32 + +/* ASP Config */ +#define CS40L50_ASP_RX_WIDTH_SHIFT 24 +#define CS40L50_ASP_RX_WIDTH_MASK GENMASK(31, 24) +#define CS40L50_ASP_RX_WL_MASK GENMASK(5, 0) +#define CS40L50_ASP_FSYNC_INV_MASK BIT(2) +#define CS40L50_ASP_BCLK_INV_MASK BIT(6) +#define CS40L50_ASP_FMT_MASK GENMASK(10, 8) +#define CS40L50_ASP_FMT_I2S 0x2 + +struct cs40l50_pll_config { + unsigned int freq; + unsigned int cfg; +}; + +struct cs40l50_codec { + struct device *dev; + struct regmap *regmap; + unsigned int daifmt; + unsigned int bclk_ratio; + unsigned int rate; +}; + +static const struct cs40l50_pll_config cs40l50_pll_cfg[] = { + { 32768, 0x00 }, + { 1536000, 0x1B }, + { 3072000, 0x21 }, + { 6144000, 0x28 }, + { 9600000, 0x30 }, + { 12288000, 0x33 }, +}; + +static int cs40l50_get_clk_config(const unsigned int freq, unsigned int *cfg) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(cs40l50_pll_cfg); i++) { + if (cs40l50_pll_cfg[i].freq == freq) { + *cfg = cs40l50_pll_cfg[i].cfg; + return 0; + } + } + + return -EINVAL; +} + +static int cs40l50_swap_ext_clk(struct cs40l50_codec *codec, const unsigned int clk_src) +{ + unsigned int cfg; + int ret; + + switch (clk_src) { + case CS40L50_PLL_REFCLK_BCLK: + ret = cs40l50_get_clk_config(codec->bclk_ratio * codec->rate, &cfg); + if (ret) + return ret; + break; + case CS40L50_PLL_REFCLK_MCLK: + cfg = CS40L50_PLL_REEFCLK_MCLK_CFG; + break; + default: + return -EINVAL; + } + + ret = regmap_update_bits(codec->regmap, CS40L50_REFCLK_INPUT, + CS40L50_PLL_REFCLK_LOOP_MASK, + CS40L50_PLL_REFCLK_OPEN_LOOP << + CS40L50_PLL_REFCLK_LOOP_SHIFT); + if (ret) + return ret; + + ret = regmap_update_bits(codec->regmap, CS40L50_REFCLK_INPUT, + CS40L50_PLL_REFCLK_FREQ_MASK | + CS40L50_PLL_REFCLK_SEL_MASK, + (cfg << CS40L50_PLL_REFCLK_FREQ_SHIFT) | clk_src); + if (ret) + return ret; + + return regmap_update_bits(codec->regmap, CS40L50_REFCLK_INPUT, + CS40L50_PLL_REFCLK_LOOP_MASK, + CS40L50_PLL_REFCLK_CLOSED_LOOP << + CS40L50_PLL_REFCLK_LOOP_SHIFT); +} + +static int cs40l50_clk_en(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event) +{ + struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm); + struct cs40l50_codec *codec = snd_soc_component_get_drvdata(comp); + int ret; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + ret = cs40l50_dsp_write(codec->dev, codec->regmap, CS40L50_STOP_PLAYBACK); + if (ret) + return ret; + + ret = cs40l50_dsp_write(codec->dev, codec->regmap, CS40L50_START_I2S); + if (ret) + return ret; + + ret = cs40l50_swap_ext_clk(codec, CS40L50_PLL_REFCLK_BCLK); + if (ret) + return ret; + break; + case SND_SOC_DAPM_PRE_PMD: + ret = cs40l50_swap_ext_clk(codec, CS40L50_PLL_REFCLK_MCLK); + if (ret) + return ret; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const struct snd_soc_dapm_widget cs40l50_dapm_widgets[] = { + SND_SOC_DAPM_SUPPLY_S("ASP PLL", 0, SND_SOC_NOPM, 0, 0, cs40l50_clk_en, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_AIF_IN("ASPRX1", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("ASPRX2", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_OUTPUT("OUT"), +}; + +static const struct snd_soc_dapm_route cs40l50_dapm_routes[] = { + { "ASP Playback", NULL, "ASP PLL" }, + { "ASPRX1", NULL, "ASP Playback" }, + { "ASPRX2", NULL, "ASP Playback" }, + + { "OUT", NULL, "ASPRX1" }, + { "OUT", NULL, "ASPRX2" }, +}; + +static int cs40l50_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) +{ + struct cs40l50_codec *codec = snd_soc_component_get_drvdata(codec_dai->component); + + if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBC_CFC) + return -EINVAL; + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + codec->daifmt = 0; + break; + case SND_SOC_DAIFMT_NB_IF: + codec->daifmt = CS40L50_ASP_FSYNC_INV_MASK; + break; + case SND_SOC_DAIFMT_IB_NF: + codec->daifmt = CS40L50_ASP_BCLK_INV_MASK; + break; + case SND_SOC_DAIFMT_IB_IF: + codec->daifmt = CS40L50_ASP_FSYNC_INV_MASK | CS40L50_ASP_BCLK_INV_MASK; + break; + default: + dev_err(codec->dev, "Invalid clock invert\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + codec->daifmt |= FIELD_PREP(CS40L50_ASP_FMT_MASK, CS40L50_ASP_FMT_I2S); + break; + default: + dev_err(codec->dev, "Unsupported DAI format\n"); + return -EINVAL; + } + + return 0; +} + +static int cs40l50_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct cs40l50_codec *codec = snd_soc_component_get_drvdata(dai->component); + unsigned int asp_rx_wl = params_width(params); + int ret; + + codec->rate = params_rate(params); + + ret = regmap_update_bits(codec->regmap, CS40L50_ASP_DATA_CONTROL5, + CS40L50_ASP_RX_WL_MASK, asp_rx_wl); + if (ret) + return ret; + + codec->daifmt |= (asp_rx_wl << CS40L50_ASP_RX_WIDTH_SHIFT); + + return regmap_update_bits(codec->regmap, CS40L50_ASP_CONTROL2, + CS40L50_ASP_FSYNC_INV_MASK | + CS40L50_ASP_BCLK_INV_MASK | + CS40L50_ASP_FMT_MASK | + CS40L50_ASP_RX_WIDTH_MASK, codec->daifmt); +} + +static int cs40l50_set_dai_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) +{ + struct cs40l50_codec *codec = snd_soc_component_get_drvdata(dai->component); + + codec->bclk_ratio = ratio; + + return 0; +} + +static const struct snd_soc_dai_ops cs40l50_dai_ops = { + .set_fmt = cs40l50_set_dai_fmt, + .set_bclk_ratio = cs40l50_set_dai_bclk_ratio, + .hw_params = cs40l50_hw_params, +}; + +static struct snd_soc_dai_driver cs40l50_dai[] = { + { + .name = "cs40l50-pcm", + .id = 0, + .playback = { + .stream_name = "ASP Playback", + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, + }, + .ops = &cs40l50_dai_ops, + }, +}; + +static int cs40l50_codec_probe(struct snd_soc_component *component) +{ + struct cs40l50_codec *codec = snd_soc_component_get_drvdata(component); + + codec->bclk_ratio = CS40L50_BCLK_RATIO_DEFAULT; + + return 0; +} + +static const struct snd_soc_component_driver soc_codec_dev_cs40l50 = { + .probe = cs40l50_codec_probe, + .dapm_widgets = cs40l50_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(cs40l50_dapm_widgets), + .dapm_routes = cs40l50_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(cs40l50_dapm_routes), +}; + +static int cs40l50_codec_driver_probe(struct platform_device *pdev) +{ + struct cs40l50 *cs40l50 = dev_get_drvdata(pdev->dev.parent); + struct cs40l50_codec *codec; + + codec = devm_kzalloc(&pdev->dev, sizeof(*codec), GFP_KERNEL); + if (!codec) + return -ENOMEM; + + codec->regmap = cs40l50->regmap; + codec->dev = &pdev->dev; + + return devm_snd_soc_register_component(&pdev->dev, &soc_codec_dev_cs40l50, + cs40l50_dai, ARRAY_SIZE(cs40l50_dai)); +} + +static const struct platform_device_id cs40l50_id[] = { + { .name = "cs40l50-codec" }, + { } +}; +MODULE_DEVICE_TABLE(platform, cs40l50_id); + +static struct platform_driver cs40l50_codec_driver = { + .probe = cs40l50_codec_driver_probe, + .id_table = cs40l50_id, + .driver = { + .name = "cs40l50-codec", + }, +}; +module_platform_driver(cs40l50_codec_driver); + +MODULE_DESCRIPTION("ASoC CS40L50 driver"); +MODULE_AUTHOR("James Ogletree <james.ogletree@cirrus.com>"); +MODULE_LICENSE("GPL"); |
