1*bcea0e1eSSimon Glass // SPDX-License-Identifier: GPL-2.0+
2*bcea0e1eSSimon Glass /*
3*bcea0e1eSSimon Glass * Copyright 2018 Google, LLC
4*bcea0e1eSSimon Glass * Written by Simon Glass <sjg@chromium.org>
5*bcea0e1eSSimon Glass */
6*bcea0e1eSSimon Glass
7*bcea0e1eSSimon Glass #define LOG_CATEGORY UCLASS_SOUND
8*bcea0e1eSSimon Glass
9*bcea0e1eSSimon Glass #include <common.h>
10*bcea0e1eSSimon Glass #include <audio_codec.h>
11*bcea0e1eSSimon Glass #include <clk.h>
12*bcea0e1eSSimon Glass #include <dm.h>
13*bcea0e1eSSimon Glass #include <i2s.h>
14*bcea0e1eSSimon Glass #include <misc.h>
15*bcea0e1eSSimon Glass #include <sound.h>
16*bcea0e1eSSimon Glass #include <asm/arch/periph.h>
17*bcea0e1eSSimon Glass #include <dm/pinctrl.h>
18*bcea0e1eSSimon Glass
rockchip_sound_setup(struct udevice * dev)19*bcea0e1eSSimon Glass static int rockchip_sound_setup(struct udevice *dev)
20*bcea0e1eSSimon Glass {
21*bcea0e1eSSimon Glass struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
22*bcea0e1eSSimon Glass struct i2s_uc_priv *i2c_priv = dev_get_uclass_priv(uc_priv->i2s);
23*bcea0e1eSSimon Glass int ret;
24*bcea0e1eSSimon Glass
25*bcea0e1eSSimon Glass if (uc_priv->setup_done)
26*bcea0e1eSSimon Glass return -EALREADY;
27*bcea0e1eSSimon Glass ret = audio_codec_set_params(uc_priv->codec, i2c_priv->id,
28*bcea0e1eSSimon Glass i2c_priv->samplingrate,
29*bcea0e1eSSimon Glass i2c_priv->samplingrate * i2c_priv->rfs,
30*bcea0e1eSSimon Glass i2c_priv->bitspersample,
31*bcea0e1eSSimon Glass i2c_priv->channels);
32*bcea0e1eSSimon Glass if (ret)
33*bcea0e1eSSimon Glass return ret;
34*bcea0e1eSSimon Glass uc_priv->setup_done = true;
35*bcea0e1eSSimon Glass
36*bcea0e1eSSimon Glass return 0;
37*bcea0e1eSSimon Glass }
38*bcea0e1eSSimon Glass
rockchip_sound_play(struct udevice * dev,void * data,uint data_size)39*bcea0e1eSSimon Glass static int rockchip_sound_play(struct udevice *dev, void *data, uint data_size)
40*bcea0e1eSSimon Glass {
41*bcea0e1eSSimon Glass struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
42*bcea0e1eSSimon Glass
43*bcea0e1eSSimon Glass return i2s_tx_data(uc_priv->i2s, data, data_size);
44*bcea0e1eSSimon Glass }
45*bcea0e1eSSimon Glass
rockchip_sound_probe(struct udevice * dev)46*bcea0e1eSSimon Glass static int rockchip_sound_probe(struct udevice *dev)
47*bcea0e1eSSimon Glass {
48*bcea0e1eSSimon Glass struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
49*bcea0e1eSSimon Glass struct ofnode_phandle_args args;
50*bcea0e1eSSimon Glass struct udevice *pinctrl;
51*bcea0e1eSSimon Glass struct clk clk;
52*bcea0e1eSSimon Glass ofnode node;
53*bcea0e1eSSimon Glass int ret;
54*bcea0e1eSSimon Glass
55*bcea0e1eSSimon Glass node = ofnode_find_subnode(dev_ofnode(dev), "cpu");
56*bcea0e1eSSimon Glass if (!ofnode_valid(node)) {
57*bcea0e1eSSimon Glass log_debug("Failed to find /cpu subnode\n");
58*bcea0e1eSSimon Glass return -EINVAL;
59*bcea0e1eSSimon Glass }
60*bcea0e1eSSimon Glass ret = ofnode_parse_phandle_with_args(node, "sound-dai",
61*bcea0e1eSSimon Glass "#sound-dai-cells", 0, 0, &args);
62*bcea0e1eSSimon Glass if (ret) {
63*bcea0e1eSSimon Glass log_debug("Cannot find i2s phandle: %d\n", ret);
64*bcea0e1eSSimon Glass return ret;
65*bcea0e1eSSimon Glass }
66*bcea0e1eSSimon Glass ret = uclass_get_device_by_ofnode(UCLASS_I2S, args.node, &uc_priv->i2s);
67*bcea0e1eSSimon Glass if (ret) {
68*bcea0e1eSSimon Glass log_debug("Cannot find i2s: %d\n", ret);
69*bcea0e1eSSimon Glass return ret;
70*bcea0e1eSSimon Glass }
71*bcea0e1eSSimon Glass
72*bcea0e1eSSimon Glass node = ofnode_find_subnode(dev_ofnode(dev), "codec");
73*bcea0e1eSSimon Glass if (!ofnode_valid(node)) {
74*bcea0e1eSSimon Glass log_debug("Failed to find /codec subnode\n");
75*bcea0e1eSSimon Glass return -EINVAL;
76*bcea0e1eSSimon Glass }
77*bcea0e1eSSimon Glass ret = ofnode_parse_phandle_with_args(node, "sound-dai",
78*bcea0e1eSSimon Glass "#sound-dai-cells", 0, 0, &args);
79*bcea0e1eSSimon Glass if (ret) {
80*bcea0e1eSSimon Glass log_debug("Cannot find codec phandle: %d\n", ret);
81*bcea0e1eSSimon Glass return ret;
82*bcea0e1eSSimon Glass }
83*bcea0e1eSSimon Glass ret = uclass_get_device_by_ofnode(UCLASS_AUDIO_CODEC, args.node,
84*bcea0e1eSSimon Glass &uc_priv->codec);
85*bcea0e1eSSimon Glass if (ret) {
86*bcea0e1eSSimon Glass log_debug("Cannot find audio codec: %d\n", ret);
87*bcea0e1eSSimon Glass return ret;
88*bcea0e1eSSimon Glass }
89*bcea0e1eSSimon Glass ret = clk_get_by_index(uc_priv->i2s, 1, &clk);
90*bcea0e1eSSimon Glass if (ret) {
91*bcea0e1eSSimon Glass log_debug("Cannot find clock: %d\n", ret);
92*bcea0e1eSSimon Glass return ret;
93*bcea0e1eSSimon Glass }
94*bcea0e1eSSimon Glass ret = clk_set_rate(&clk, 12288000);
95*bcea0e1eSSimon Glass if (ret < 0) {
96*bcea0e1eSSimon Glass log_debug("Cannot find clock: %d\n", ret);
97*bcea0e1eSSimon Glass return ret;
98*bcea0e1eSSimon Glass }
99*bcea0e1eSSimon Glass ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
100*bcea0e1eSSimon Glass if (ret) {
101*bcea0e1eSSimon Glass debug("%s: Cannot find pinctrl device\n", __func__);
102*bcea0e1eSSimon Glass return ret;
103*bcea0e1eSSimon Glass }
104*bcea0e1eSSimon Glass ret = pinctrl_request(pinctrl, PERIPH_ID_I2S, 0);
105*bcea0e1eSSimon Glass if (ret) {
106*bcea0e1eSSimon Glass debug("%s: Cannot select I2C pinctrl\n", __func__);
107*bcea0e1eSSimon Glass return ret;
108*bcea0e1eSSimon Glass }
109*bcea0e1eSSimon Glass
110*bcea0e1eSSimon Glass log_debug("Probed sound '%s' with codec '%s' and i2s '%s'\n", dev->name,
111*bcea0e1eSSimon Glass uc_priv->codec->name, uc_priv->i2s->name);
112*bcea0e1eSSimon Glass
113*bcea0e1eSSimon Glass return 0;
114*bcea0e1eSSimon Glass }
115*bcea0e1eSSimon Glass
116*bcea0e1eSSimon Glass static const struct sound_ops rockchip_sound_ops = {
117*bcea0e1eSSimon Glass .setup = rockchip_sound_setup,
118*bcea0e1eSSimon Glass .play = rockchip_sound_play,
119*bcea0e1eSSimon Glass };
120*bcea0e1eSSimon Glass
121*bcea0e1eSSimon Glass static const struct udevice_id rockchip_sound_ids[] = {
122*bcea0e1eSSimon Glass { .compatible = "rockchip,audio-max98090-jerry" },
123*bcea0e1eSSimon Glass { }
124*bcea0e1eSSimon Glass };
125*bcea0e1eSSimon Glass
126*bcea0e1eSSimon Glass U_BOOT_DRIVER(rockchip_sound) = {
127*bcea0e1eSSimon Glass .name = "rockchip_sound",
128*bcea0e1eSSimon Glass .id = UCLASS_SOUND,
129*bcea0e1eSSimon Glass .of_match = rockchip_sound_ids,
130*bcea0e1eSSimon Glass .probe = rockchip_sound_probe,
131*bcea0e1eSSimon Glass .ops = &rockchip_sound_ops,
132*bcea0e1eSSimon Glass };
133