mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
93a98a6ff3
Update snow's device tree and config to use driver model for sound. Also update the others as best we can. Spring does not appear to have audio support in the kernel. The smdk5250 and smdk5420 boards use a wolfson codec which I cannot test with. So the only boards that is tested and known to work are snow, pit and pi. Signed-off-by: Simon Glass <sjg@chromium.org>
105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2018 Google, LLC
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <audio_codec.h>
|
|
#include <dm.h>
|
|
#include <i2s.h>
|
|
#include <sound.h>
|
|
#include <asm/gpio.h>
|
|
|
|
static int samsung_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 samsung_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 samsung_sound_probe(struct udevice *dev)
|
|
{
|
|
struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
|
|
struct ofnode_phandle_args args;
|
|
struct gpio_desc en_gpio;
|
|
ofnode node;
|
|
int ret;
|
|
|
|
ret = gpio_request_by_name(dev, "codec-enable-gpio", 0, &en_gpio,
|
|
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
|
|
|
|
/* Turn on the GPIO which connects to the codec's "enable" line. */
|
|
if (!ret)
|
|
gpio_set_pull(gpio_get_number(&en_gpio), S5P_GPIO_PULL_NONE);
|
|
|
|
ret = uclass_get_device_by_phandle(UCLASS_AUDIO_CODEC, dev,
|
|
"samsung,audio-codec",
|
|
&uc_priv->codec);
|
|
if (ret) {
|
|
debug("Failed to probe audio codec\n");
|
|
return ret;
|
|
}
|
|
node = ofnode_find_subnode(dev_ofnode(dev), "cpu");
|
|
if (!ofnode_valid(node)) {
|
|
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) {
|
|
debug("Cannot find phandle: %d\n", ret);
|
|
return ret;
|
|
}
|
|
ret = uclass_get_device_by_ofnode(UCLASS_I2S, args.node, &uc_priv->i2s);
|
|
if (ret) {
|
|
debug("Cannot find i2s: %d\n", ret);
|
|
return ret;
|
|
}
|
|
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 samsung_sound_ops = {
|
|
.setup = samsung_sound_setup,
|
|
.play = samsung_sound_play,
|
|
};
|
|
|
|
static const struct udevice_id samsung_sound_ids[] = {
|
|
{ .compatible = "google,snow-audio-max98095" },
|
|
{ .compatible = "google,spring-audio-max98095" },
|
|
{ .compatible = "samsung,smdk5420-audio-wm8994" },
|
|
{ .compatible = "google,peach-audio-max98090" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(samsung_sound) = {
|
|
.name = "samsung_sound",
|
|
.id = UCLASS_SOUND,
|
|
.of_match = samsung_sound_ids,
|
|
.probe = samsung_sound_probe,
|
|
.ops = &samsung_sound_ops,
|
|
};
|