1c8609f38SJerome Brunet // SPDX-License-Identifier: GPL-2.0 2c8609f38SJerome Brunet // 3c8609f38SJerome Brunet // Copyright (c) 2019 BayLibre, SAS. 4c8609f38SJerome Brunet // Author: Jerome Brunet <jbrunet@baylibre.com> 5c8609f38SJerome Brunet 6c8609f38SJerome Brunet #include <linux/bitfield.h> 7c8609f38SJerome Brunet #include <linux/clk.h> 8c8609f38SJerome Brunet #include <linux/module.h> 9c8609f38SJerome Brunet #include <sound/pcm_params.h> 10c8609f38SJerome Brunet #include <linux/regmap.h> 1122946f37SJerome Brunet #include <linux/reset.h> 12c8609f38SJerome Brunet #include <sound/soc.h> 13c8609f38SJerome Brunet #include <sound/soc-dai.h> 14c8609f38SJerome Brunet 15c8609f38SJerome Brunet #include <dt-bindings/sound/meson-g12a-tohdmitx.h> 169c29fd9bSJerome Brunet #include "meson-codec-glue.h" 17c8609f38SJerome Brunet 18c8609f38SJerome Brunet #define G12A_TOHDMITX_DRV_NAME "g12a-tohdmitx" 19c8609f38SJerome Brunet 20c8609f38SJerome Brunet #define TOHDMITX_CTRL0 0x0 21c8609f38SJerome Brunet #define CTRL0_ENABLE_SHIFT 31 229c29fd9bSJerome Brunet #define CTRL0_I2S_DAT_SEL_SHIFT 12 239c29fd9bSJerome Brunet #define CTRL0_I2S_DAT_SEL (0x3 << CTRL0_I2S_DAT_SEL_SHIFT) 24c8609f38SJerome Brunet #define CTRL0_I2S_LRCLK_SEL GENMASK(9, 8) 25c8609f38SJerome Brunet #define CTRL0_I2S_BLK_CAP_INV BIT(7) 26c8609f38SJerome Brunet #define CTRL0_I2S_BCLK_O_INV BIT(6) 27c8609f38SJerome Brunet #define CTRL0_I2S_BCLK_SEL GENMASK(5, 4) 28c8609f38SJerome Brunet #define CTRL0_SPDIF_CLK_CAP_INV BIT(3) 29c8609f38SJerome Brunet #define CTRL0_SPDIF_CLK_O_INV BIT(2) 309c29fd9bSJerome Brunet #define CTRL0_SPDIF_SEL_SHIFT 1 319c29fd9bSJerome Brunet #define CTRL0_SPDIF_SEL (0x1 << CTRL0_SPDIF_SEL_SHIFT) 32c8609f38SJerome Brunet #define CTRL0_SPDIF_CLK_SEL BIT(0) 33c8609f38SJerome Brunet 34c8609f38SJerome Brunet static const char * const g12a_tohdmitx_i2s_mux_texts[] = { 35c8609f38SJerome Brunet "I2S A", "I2S B", "I2S C", 36c8609f38SJerome Brunet }; 37c8609f38SJerome Brunet 38c8609f38SJerome Brunet static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol, 39c8609f38SJerome Brunet struct snd_ctl_elem_value *ucontrol) 40c8609f38SJerome Brunet { 41c8609f38SJerome Brunet struct snd_soc_component *component = 42c8609f38SJerome Brunet snd_soc_dapm_kcontrol_component(kcontrol); 43c8609f38SJerome Brunet struct snd_soc_dapm_context *dapm = 44c8609f38SJerome Brunet snd_soc_dapm_kcontrol_dapm(kcontrol); 45c8609f38SJerome Brunet struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 469c29fd9bSJerome Brunet unsigned int mux, changed; 479c29fd9bSJerome Brunet 489c29fd9bSJerome Brunet mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); 499c29fd9bSJerome Brunet changed = snd_soc_component_test_bits(component, e->reg, 509c29fd9bSJerome Brunet CTRL0_I2S_DAT_SEL, 519c29fd9bSJerome Brunet FIELD_PREP(CTRL0_I2S_DAT_SEL, 529c29fd9bSJerome Brunet mux)); 539c29fd9bSJerome Brunet 549c29fd9bSJerome Brunet if (!changed) 559c29fd9bSJerome Brunet return 0; 56c8609f38SJerome Brunet 57c8609f38SJerome Brunet /* Force disconnect of the mux while updating */ 58c8609f38SJerome Brunet snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); 59c8609f38SJerome Brunet 609c29fd9bSJerome Brunet snd_soc_component_update_bits(component, e->reg, 61c8609f38SJerome Brunet CTRL0_I2S_DAT_SEL | 62c8609f38SJerome Brunet CTRL0_I2S_LRCLK_SEL | 63c8609f38SJerome Brunet CTRL0_I2S_BCLK_SEL, 64c8609f38SJerome Brunet FIELD_PREP(CTRL0_I2S_DAT_SEL, mux) | 65c8609f38SJerome Brunet FIELD_PREP(CTRL0_I2S_LRCLK_SEL, mux) | 66c8609f38SJerome Brunet FIELD_PREP(CTRL0_I2S_BCLK_SEL, mux)); 67c8609f38SJerome Brunet 68c8609f38SJerome Brunet snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); 69c8609f38SJerome Brunet 70*12131008SMark Brown return 1; 71c8609f38SJerome Brunet } 72c8609f38SJerome Brunet 739c29fd9bSJerome Brunet static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_i2s_mux_enum, TOHDMITX_CTRL0, 749c29fd9bSJerome Brunet CTRL0_I2S_DAT_SEL_SHIFT, 759c29fd9bSJerome Brunet g12a_tohdmitx_i2s_mux_texts); 769c29fd9bSJerome Brunet 77c8609f38SJerome Brunet static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux = 78c8609f38SJerome Brunet SOC_DAPM_ENUM_EXT("I2S Source", g12a_tohdmitx_i2s_mux_enum, 799c29fd9bSJerome Brunet snd_soc_dapm_get_enum_double, 80c8609f38SJerome Brunet g12a_tohdmitx_i2s_mux_put_enum); 81c8609f38SJerome Brunet 82c8609f38SJerome Brunet static const char * const g12a_tohdmitx_spdif_mux_texts[] = { 83c8609f38SJerome Brunet "SPDIF A", "SPDIF B", 84c8609f38SJerome Brunet }; 85c8609f38SJerome Brunet 86c8609f38SJerome Brunet static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol, 87c8609f38SJerome Brunet struct snd_ctl_elem_value *ucontrol) 88c8609f38SJerome Brunet { 89c8609f38SJerome Brunet struct snd_soc_component *component = 90c8609f38SJerome Brunet snd_soc_dapm_kcontrol_component(kcontrol); 91c8609f38SJerome Brunet struct snd_soc_dapm_context *dapm = 92c8609f38SJerome Brunet snd_soc_dapm_kcontrol_dapm(kcontrol); 93c8609f38SJerome Brunet struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 949c29fd9bSJerome Brunet unsigned int mux, changed; 959c29fd9bSJerome Brunet 969c29fd9bSJerome Brunet mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); 979c29fd9bSJerome Brunet changed = snd_soc_component_test_bits(component, TOHDMITX_CTRL0, 989c29fd9bSJerome Brunet CTRL0_SPDIF_SEL, 999c29fd9bSJerome Brunet FIELD_PREP(CTRL0_SPDIF_SEL, mux)); 1009c29fd9bSJerome Brunet 1019c29fd9bSJerome Brunet if (!changed) 1029c29fd9bSJerome Brunet return 0; 103c8609f38SJerome Brunet 104c8609f38SJerome Brunet /* Force disconnect of the mux while updating */ 105c8609f38SJerome Brunet snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); 106c8609f38SJerome Brunet 107c8609f38SJerome Brunet snd_soc_component_update_bits(component, TOHDMITX_CTRL0, 108c8609f38SJerome Brunet CTRL0_SPDIF_SEL | 109c8609f38SJerome Brunet CTRL0_SPDIF_CLK_SEL, 110c8609f38SJerome Brunet FIELD_PREP(CTRL0_SPDIF_SEL, mux) | 111c8609f38SJerome Brunet FIELD_PREP(CTRL0_SPDIF_CLK_SEL, mux)); 112c8609f38SJerome Brunet 113c8609f38SJerome Brunet snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); 114c8609f38SJerome Brunet 115c8609f38SJerome Brunet return 0; 116c8609f38SJerome Brunet } 117c8609f38SJerome Brunet 1189c29fd9bSJerome Brunet static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_spdif_mux_enum, TOHDMITX_CTRL0, 1199c29fd9bSJerome Brunet CTRL0_SPDIF_SEL_SHIFT, 1209c29fd9bSJerome Brunet g12a_tohdmitx_spdif_mux_texts); 1219c29fd9bSJerome Brunet 122c8609f38SJerome Brunet static const struct snd_kcontrol_new g12a_tohdmitx_spdif_mux = 123c8609f38SJerome Brunet SOC_DAPM_ENUM_EXT("SPDIF Source", g12a_tohdmitx_spdif_mux_enum, 1249c29fd9bSJerome Brunet snd_soc_dapm_get_enum_double, 125c8609f38SJerome Brunet g12a_tohdmitx_spdif_mux_put_enum); 126c8609f38SJerome Brunet 127c8609f38SJerome Brunet static const struct snd_kcontrol_new g12a_tohdmitx_out_enable = 128c8609f38SJerome Brunet SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOHDMITX_CTRL0, 129c8609f38SJerome Brunet CTRL0_ENABLE_SHIFT, 1, 0); 130c8609f38SJerome Brunet 131c8609f38SJerome Brunet static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = { 132c8609f38SJerome Brunet SND_SOC_DAPM_MUX("I2S SRC", SND_SOC_NOPM, 0, 0, 133c8609f38SJerome Brunet &g12a_tohdmitx_i2s_mux), 134c8609f38SJerome Brunet SND_SOC_DAPM_SWITCH("I2S OUT EN", SND_SOC_NOPM, 0, 0, 135c8609f38SJerome Brunet &g12a_tohdmitx_out_enable), 136c8609f38SJerome Brunet SND_SOC_DAPM_MUX("SPDIF SRC", SND_SOC_NOPM, 0, 0, 137c8609f38SJerome Brunet &g12a_tohdmitx_spdif_mux), 138c8609f38SJerome Brunet SND_SOC_DAPM_SWITCH("SPDIF OUT EN", SND_SOC_NOPM, 0, 0, 139c8609f38SJerome Brunet &g12a_tohdmitx_out_enable), 140c8609f38SJerome Brunet }; 141c8609f38SJerome Brunet 142c8609f38SJerome Brunet static const struct snd_soc_dai_ops g12a_tohdmitx_input_ops = { 1439c29fd9bSJerome Brunet .hw_params = meson_codec_glue_input_hw_params, 1449c29fd9bSJerome Brunet .set_fmt = meson_codec_glue_input_set_fmt, 145c8609f38SJerome Brunet }; 146c8609f38SJerome Brunet 147c8609f38SJerome Brunet static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = { 1489c29fd9bSJerome Brunet .startup = meson_codec_glue_output_startup, 149c8609f38SJerome Brunet }; 150c8609f38SJerome Brunet 151c8609f38SJerome Brunet #define TOHDMITX_SPDIF_FORMATS \ 152c8609f38SJerome Brunet (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 153c8609f38SJerome Brunet SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 154c8609f38SJerome Brunet 155c8609f38SJerome Brunet #define TOHDMITX_I2S_FORMATS \ 156c8609f38SJerome Brunet (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 157c8609f38SJerome Brunet SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \ 158c8609f38SJerome Brunet SNDRV_PCM_FMTBIT_S32_LE) 159c8609f38SJerome Brunet 160c8609f38SJerome Brunet #define TOHDMITX_STREAM(xname, xsuffix, xfmt, xchmax) \ 161c8609f38SJerome Brunet { \ 162c8609f38SJerome Brunet .stream_name = xname " " xsuffix, \ 163c8609f38SJerome Brunet .channels_min = 1, \ 164c8609f38SJerome Brunet .channels_max = (xchmax), \ 165c8609f38SJerome Brunet .rate_min = 8000, \ 166c8609f38SJerome Brunet .rate_max = 192000, \ 167c8609f38SJerome Brunet .formats = (xfmt), \ 168c8609f38SJerome Brunet } 169c8609f38SJerome Brunet 170c8609f38SJerome Brunet #define TOHDMITX_IN(xname, xid, xfmt, xchmax) { \ 171c8609f38SJerome Brunet .name = xname, \ 172c8609f38SJerome Brunet .id = (xid), \ 173c8609f38SJerome Brunet .playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \ 174c8609f38SJerome Brunet .ops = &g12a_tohdmitx_input_ops, \ 1759c29fd9bSJerome Brunet .probe = meson_codec_glue_input_dai_probe, \ 1769c29fd9bSJerome Brunet .remove = meson_codec_glue_input_dai_remove, \ 177c8609f38SJerome Brunet } 178c8609f38SJerome Brunet 179c8609f38SJerome Brunet #define TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \ 180c8609f38SJerome Brunet .name = xname, \ 181c8609f38SJerome Brunet .id = (xid), \ 182c8609f38SJerome Brunet .capture = TOHDMITX_STREAM(xname, "Capture", xfmt, xchmax), \ 183c8609f38SJerome Brunet .ops = &g12a_tohdmitx_output_ops, \ 184c8609f38SJerome Brunet } 185c8609f38SJerome Brunet 186c8609f38SJerome Brunet static struct snd_soc_dai_driver g12a_tohdmitx_dai_drv[] = { 187c8609f38SJerome Brunet TOHDMITX_IN("I2S IN A", TOHDMITX_I2S_IN_A, 188c8609f38SJerome Brunet TOHDMITX_I2S_FORMATS, 8), 189c8609f38SJerome Brunet TOHDMITX_IN("I2S IN B", TOHDMITX_I2S_IN_B, 190c8609f38SJerome Brunet TOHDMITX_I2S_FORMATS, 8), 191c8609f38SJerome Brunet TOHDMITX_IN("I2S IN C", TOHDMITX_I2S_IN_C, 192c8609f38SJerome Brunet TOHDMITX_I2S_FORMATS, 8), 193c8609f38SJerome Brunet TOHDMITX_OUT("I2S OUT", TOHDMITX_I2S_OUT, 194c8609f38SJerome Brunet TOHDMITX_I2S_FORMATS, 8), 195c8609f38SJerome Brunet TOHDMITX_IN("SPDIF IN A", TOHDMITX_SPDIF_IN_A, 196c8609f38SJerome Brunet TOHDMITX_SPDIF_FORMATS, 2), 197c8609f38SJerome Brunet TOHDMITX_IN("SPDIF IN B", TOHDMITX_SPDIF_IN_B, 198c8609f38SJerome Brunet TOHDMITX_SPDIF_FORMATS, 2), 199c8609f38SJerome Brunet TOHDMITX_OUT("SPDIF OUT", TOHDMITX_SPDIF_OUT, 200c8609f38SJerome Brunet TOHDMITX_SPDIF_FORMATS, 2), 201c8609f38SJerome Brunet }; 202c8609f38SJerome Brunet 203c8609f38SJerome Brunet static int g12a_tohdmi_component_probe(struct snd_soc_component *c) 204c8609f38SJerome Brunet { 205c8609f38SJerome Brunet /* Initialize the static clock parameters */ 206c8609f38SJerome Brunet return snd_soc_component_write(c, TOHDMITX_CTRL0, 207c8609f38SJerome Brunet CTRL0_I2S_BLK_CAP_INV | CTRL0_SPDIF_CLK_CAP_INV); 208c8609f38SJerome Brunet } 209c8609f38SJerome Brunet 210c8609f38SJerome Brunet static const struct snd_soc_dapm_route g12a_tohdmitx_routes[] = { 211c8609f38SJerome Brunet { "I2S SRC", "I2S A", "I2S IN A Playback" }, 212c8609f38SJerome Brunet { "I2S SRC", "I2S B", "I2S IN B Playback" }, 213c8609f38SJerome Brunet { "I2S SRC", "I2S C", "I2S IN C Playback" }, 214c8609f38SJerome Brunet { "I2S OUT EN", "Switch", "I2S SRC" }, 215c8609f38SJerome Brunet { "I2S OUT Capture", NULL, "I2S OUT EN" }, 216c8609f38SJerome Brunet { "SPDIF SRC", "SPDIF A", "SPDIF IN A Playback" }, 217c8609f38SJerome Brunet { "SPDIF SRC", "SPDIF B", "SPDIF IN B Playback" }, 218c8609f38SJerome Brunet { "SPDIF OUT EN", "Switch", "SPDIF SRC" }, 219c8609f38SJerome Brunet { "SPDIF OUT Capture", NULL, "SPDIF OUT EN" }, 220c8609f38SJerome Brunet }; 221c8609f38SJerome Brunet 222c8609f38SJerome Brunet static const struct snd_soc_component_driver g12a_tohdmitx_component_drv = { 223c8609f38SJerome Brunet .probe = g12a_tohdmi_component_probe, 224c8609f38SJerome Brunet .dapm_widgets = g12a_tohdmitx_widgets, 225c8609f38SJerome Brunet .num_dapm_widgets = ARRAY_SIZE(g12a_tohdmitx_widgets), 226c8609f38SJerome Brunet .dapm_routes = g12a_tohdmitx_routes, 227c8609f38SJerome Brunet .num_dapm_routes = ARRAY_SIZE(g12a_tohdmitx_routes), 228c8609f38SJerome Brunet .endianness = 1, 229c8609f38SJerome Brunet .non_legacy_dai_naming = 1, 230c8609f38SJerome Brunet }; 231c8609f38SJerome Brunet 232c8609f38SJerome Brunet static const struct regmap_config g12a_tohdmitx_regmap_cfg = { 233c8609f38SJerome Brunet .reg_bits = 32, 234c8609f38SJerome Brunet .val_bits = 32, 235c8609f38SJerome Brunet .reg_stride = 4, 236c8609f38SJerome Brunet }; 237c8609f38SJerome Brunet 238c8609f38SJerome Brunet static const struct of_device_id g12a_tohdmitx_of_match[] = { 239c8609f38SJerome Brunet { .compatible = "amlogic,g12a-tohdmitx", }, 240c8609f38SJerome Brunet {} 241c8609f38SJerome Brunet }; 242c8609f38SJerome Brunet MODULE_DEVICE_TABLE(of, g12a_tohdmitx_of_match); 243c8609f38SJerome Brunet 244c8609f38SJerome Brunet static int g12a_tohdmitx_probe(struct platform_device *pdev) 245c8609f38SJerome Brunet { 246c8609f38SJerome Brunet struct device *dev = &pdev->dev; 247c8609f38SJerome Brunet void __iomem *regs; 248c8609f38SJerome Brunet struct regmap *map; 24922946f37SJerome Brunet int ret; 25022946f37SJerome Brunet 25122946f37SJerome Brunet ret = device_reset(dev); 25222946f37SJerome Brunet if (ret) 25322946f37SJerome Brunet return ret; 254c8609f38SJerome Brunet 255a95c9012SYueHaibing regs = devm_platform_ioremap_resource(pdev, 0); 256c8609f38SJerome Brunet if (IS_ERR(regs)) 257c8609f38SJerome Brunet return PTR_ERR(regs); 258c8609f38SJerome Brunet 259c8609f38SJerome Brunet map = devm_regmap_init_mmio(dev, regs, &g12a_tohdmitx_regmap_cfg); 260c8609f38SJerome Brunet if (IS_ERR(map)) { 261c8609f38SJerome Brunet dev_err(dev, "failed to init regmap: %ld\n", 262c8609f38SJerome Brunet PTR_ERR(map)); 263c8609f38SJerome Brunet return PTR_ERR(map); 264c8609f38SJerome Brunet } 265c8609f38SJerome Brunet 266c8609f38SJerome Brunet return devm_snd_soc_register_component(dev, 267c8609f38SJerome Brunet &g12a_tohdmitx_component_drv, g12a_tohdmitx_dai_drv, 268c8609f38SJerome Brunet ARRAY_SIZE(g12a_tohdmitx_dai_drv)); 269c8609f38SJerome Brunet } 270c8609f38SJerome Brunet 271c8609f38SJerome Brunet static struct platform_driver g12a_tohdmitx_pdrv = { 272c8609f38SJerome Brunet .driver = { 273c8609f38SJerome Brunet .name = G12A_TOHDMITX_DRV_NAME, 274c8609f38SJerome Brunet .of_match_table = g12a_tohdmitx_of_match, 275c8609f38SJerome Brunet }, 276c8609f38SJerome Brunet .probe = g12a_tohdmitx_probe, 277c8609f38SJerome Brunet }; 278c8609f38SJerome Brunet module_platform_driver(g12a_tohdmitx_pdrv); 279c8609f38SJerome Brunet 280c8609f38SJerome Brunet MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); 281c8609f38SJerome Brunet MODULE_DESCRIPTION("Amlogic G12a To HDMI Tx Control Codec Driver"); 282c8609f38SJerome Brunet MODULE_LICENSE("GPL v2"); 283