diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/sound/Makefile | 2 | ||||
| -rw-r--r-- | drivers/sound/rockchip_sound.c | 132 |
2 files changed, 133 insertions, 1 deletions
diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile index 91f255b30d..d0bf51bab6 100644 --- a/drivers/sound/Makefile +++ b/drivers/sound/Makefile @@ -9,7 +9,7 @@ obj-$(CONFIG_SOUND) += i2s-uclass.o obj-$(CONFIG_SOUND) += sound-uclass.o obj-$(CONFIG_I2S_SAMSUNG) += samsung-i2s.o obj-$(CONFIG_SOUND_SANDBOX) += sandbox.o -obj-$(CONFIG_I2S_ROCKCHIP) += rockchip_i2s.o +obj-$(CONFIG_I2S_ROCKCHIP) += rockchip_i2s.o rockchip_sound.o obj-$(CONFIG_I2S_SAMSUNG) += samsung_sound.o obj-$(CONFIG_SOUND_WM8994) += wm8994.o obj-$(CONFIG_SOUND_MAX98090) += max98090.o maxim_codec.o diff --git a/drivers/sound/rockchip_sound.c b/drivers/sound/rockchip_sound.c new file mode 100644 index 0000000000..e7fb9fb164 --- /dev/null +++ b/drivers/sound/rockchip_sound.c @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018 Google, LLC + * Written by Simon Glass <sjg@chromium.org> + */ + +#define LOG_CATEGORY UCLASS_SOUND + +#include <common.h> +#include <audio_codec.h> +#include <clk.h> +#include <dm.h> +#include <i2s.h> +#include <misc.h> +#include <sound.h> +#include <asm/arch/periph.h> +#include <dm/pinctrl.h> + +static int rockchip_sound_setup(struct udevice *dev) +{ + struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev); + struct i2s_uc_priv *i2c_priv = dev_get_uclass_priv(uc_priv->i2s); + int ret; + + if (uc_priv->setup_done) + return -EALREADY; + ret = audio_codec_set_params(uc_priv->codec, i2c_priv->id, + i2c_priv->samplingrate, + i2c_priv->samplingrate * i2c_priv->rfs, + i2c_priv->bitspersample, + i2c_priv->channels); + if (ret) + return ret; + uc_priv->setup_done = true; + + return 0; +} + +static int rockchip_sound_play(struct udevice *dev, void *data, uint data_size) +{ + struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev); + + return i2s_tx_data(uc_priv->i2s, data, data_size); +} + +static int rockchip_sound_probe(struct udevice *dev) +{ + struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev); + struct ofnode_phandle_args args; + struct udevice *pinctrl; + struct clk clk; + ofnode node; + int ret; + + node = ofnode_find_subnode(dev_ofnode(dev), "cpu"); + if (!ofnode_valid(node)) { + log_debug("Failed to find /cpu subnode\n"); + return -EINVAL; + } + ret = ofnode_parse_phandle_with_args(node, "sound-dai", + "#sound-dai-cells", 0, 0, &args); + if (ret) { + log_debug("Cannot find i2s phandle: %d\n", ret); + return ret; + } + ret = uclass_get_device_by_ofnode(UCLASS_I2S, args.node, &uc_priv->i2s); + if (ret) { + log_debug("Cannot find i2s: %d\n", ret); + return ret; + } + + node = ofnode_find_subnode(dev_ofnode(dev), "codec"); + if (!ofnode_valid(node)) { + log_debug("Failed to find /codec subnode\n"); + return -EINVAL; + } + ret = ofnode_parse_phandle_with_args(node, "sound-dai", + "#sound-dai-cells", 0, 0, &args); + if (ret) { + log_debug("Cannot find codec phandle: %d\n", ret); + return ret; + } + ret = uclass_get_device_by_ofnode(UCLASS_AUDIO_CODEC, args.node, + &uc_priv->codec); + if (ret) { + log_debug("Cannot find audio codec: %d\n", ret); + return ret; + } + ret = clk_get_by_index(uc_priv->i2s, 1, &clk); + if (ret) { + log_debug("Cannot find clock: %d\n", ret); + return ret; + } + ret = clk_set_rate(&clk, 12288000); + if (ret < 0) { + log_debug("Cannot find clock: %d\n", ret); + return ret; + } + ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); + if (ret) { + debug("%s: Cannot find pinctrl device\n", __func__); + return ret; + } + ret = pinctrl_request(pinctrl, PERIPH_ID_I2S, 0); + if (ret) { + debug("%s: Cannot select I2C pinctrl\n", __func__); + return ret; + } + + log_debug("Probed sound '%s' with codec '%s' and i2s '%s'\n", dev->name, + uc_priv->codec->name, uc_priv->i2s->name); + + return 0; +} + +static const struct sound_ops rockchip_sound_ops = { + .setup = rockchip_sound_setup, + .play = rockchip_sound_play, +}; + +static const struct udevice_id rockchip_sound_ids[] = { + { .compatible = "rockchip,audio-max98090-jerry" }, + { } +}; + +U_BOOT_DRIVER(rockchip_sound) = { + .name = "rockchip_sound", + .id = UCLASS_SOUND, + .of_match = rockchip_sound_ids, + .probe = rockchip_sound_probe, + .ops = &rockchip_sound_ops, +}; |