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authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2015-05-22 11:53:52 -0400
committerMark Brown <broonie@kernel.org>2015-05-25 10:04:32 -0400
commitdc1ebd1811e984301f98f3f9edd192327d2e35e1 (patch)
tree5d1c65053fc13c5f6472d6262393736818c7c30b /sound/soc/qcom
parentb202836a548c1985137b5b648a4afe3cc5959f4b (diff)
ASoC: qcom: Add apq8016 lpass driver support
This patch adds apq8016 lpass driver support. APQ8016 has 4 MI2S which can be routed to one internal codec and 2 external codec interfaces. Primary, Secondary, Quaternary I2S can do Rx(playback) and Tertiary and Quaternary can do Tx(capture). Tested-by: Kenneth Westfield <kwestfie@codeaurora.org> Acked-by: Kenneth Westfield <kwestfie@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/qcom')
-rw-r--r--sound/soc/qcom/Kconfig6
-rw-r--r--sound/soc/qcom/Makefile2
-rw-r--r--sound/soc/qcom/lpass-apq8016.c242
-rw-r--r--sound/soc/qcom/lpass.h4
4 files changed, 254 insertions, 0 deletions
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index b30c2baa7501..29fff6d7c633 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -18,6 +18,12 @@ config SND_SOC_LPASS_IPQ806X
18 select SND_SOC_LPASS_CPU 18 select SND_SOC_LPASS_CPU
19 select SND_SOC_LPASS_PLATFORM 19 select SND_SOC_LPASS_PLATFORM
20 20
21config SND_SOC_LPASS_APQ8016
22 tristate
23 depends on SND_SOC_QCOM
24 select SND_SOC_LPASS_CPU
25 select SND_SOC_LPASS_PLATFORM
26
21config SND_SOC_STORM 27config SND_SOC_STORM
22 tristate "ASoC I2S support for Storm boards" 28 tristate "ASoC I2S support for Storm boards"
23 depends on (ARCH_QCOM && SND_SOC_QCOM) || COMPILE_TEST 29 depends on (ARCH_QCOM && SND_SOC_QCOM) || COMPILE_TEST
diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
index f8aab91c9117..ac7630833fe5 100644
--- a/sound/soc/qcom/Makefile
+++ b/sound/soc/qcom/Makefile
@@ -2,10 +2,12 @@
2snd-soc-lpass-cpu-objs := lpass-cpu.o 2snd-soc-lpass-cpu-objs := lpass-cpu.o
3snd-soc-lpass-platform-objs := lpass-platform.o 3snd-soc-lpass-platform-objs := lpass-platform.o
4snd-soc-lpass-ipq806x-objs := lpass-ipq806x.o 4snd-soc-lpass-ipq806x-objs := lpass-ipq806x.o
5snd-soc-lpass-apq8016-objs := lpass-apq8016.o
5 6
6obj-$(CONFIG_SND_SOC_LPASS_CPU) += snd-soc-lpass-cpu.o 7obj-$(CONFIG_SND_SOC_LPASS_CPU) += snd-soc-lpass-cpu.o
7obj-$(CONFIG_SND_SOC_LPASS_PLATFORM) += snd-soc-lpass-platform.o 8obj-$(CONFIG_SND_SOC_LPASS_PLATFORM) += snd-soc-lpass-platform.o
8obj-$(CONFIG_SND_SOC_LPASS_IPQ806X) += snd-soc-lpass-ipq806x.o 9obj-$(CONFIG_SND_SOC_LPASS_IPQ806X) += snd-soc-lpass-ipq806x.o
10obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
9 11
10# Machine 12# Machine
11snd-soc-storm-objs := storm.o 13snd-soc-storm-objs := storm.o
diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c
new file mode 100644
index 000000000000..94efc01020c4
--- /dev/null
+++ b/sound/soc/qcom/lpass-apq8016.c
@@ -0,0 +1,242 @@
1/*
2 * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 and
6 * only version 2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * lpass-apq8016.c -- ALSA SoC CPU DAI driver for APQ8016 LPASS
14 *
15 */
16
17
18#include <linux/clk.h>
19#include <linux/device.h>
20#include <linux/err.h>
21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/of.h>
24#include <linux/platform_device.h>
25#include <sound/pcm.h>
26#include <sound/pcm_params.h>
27#include <sound/soc.h>
28#include <sound/soc-dai.h>
29
30#include <dt-bindings/sound/apq8016-lpass.h>
31#include "lpass-lpaif-reg.h"
32#include "lpass.h"
33
34static struct snd_soc_dai_driver apq8016_lpass_cpu_dai_driver[] = {
35 [MI2S_PRIMARY] = {
36 .id = MI2S_PRIMARY,
37 .name = "Primary MI2S",
38 .playback = {
39 .stream_name = "Primary Playback",
40 .formats = SNDRV_PCM_FMTBIT_S16 |
41 SNDRV_PCM_FMTBIT_S24 |
42 SNDRV_PCM_FMTBIT_S32,
43 .rates = SNDRV_PCM_RATE_8000 |
44 SNDRV_PCM_RATE_16000 |
45 SNDRV_PCM_RATE_32000 |
46 SNDRV_PCM_RATE_48000 |
47 SNDRV_PCM_RATE_96000,
48 .rate_min = 8000,
49 .rate_max = 96000,
50 .channels_min = 1,
51 .channels_max = 8,
52 },
53 .probe = &asoc_qcom_lpass_cpu_dai_probe,
54 .ops = &asoc_qcom_lpass_cpu_dai_ops,
55 },
56 [MI2S_SECONDARY] = {
57 .id = MI2S_SECONDARY,
58 .name = "Secondary MI2S",
59 .playback = {
60 .stream_name = "Secondary Playback",
61 .formats = SNDRV_PCM_FMTBIT_S16 |
62 SNDRV_PCM_FMTBIT_S24 |
63 SNDRV_PCM_FMTBIT_S32,
64 .rates = SNDRV_PCM_RATE_8000 |
65 SNDRV_PCM_RATE_16000 |
66 SNDRV_PCM_RATE_32000 |
67 SNDRV_PCM_RATE_48000 |
68 SNDRV_PCM_RATE_96000,
69 .rate_min = 8000,
70 .rate_max = 96000,
71 .channels_min = 1,
72 .channels_max = 8,
73 },
74 .probe = &asoc_qcom_lpass_cpu_dai_probe,
75 .ops = &asoc_qcom_lpass_cpu_dai_ops,
76 },
77 [MI2S_TERTIARY] = {
78 .id = MI2S_TERTIARY,
79 .name = "Tertiary MI2S",
80 .capture = {
81 .stream_name = "Tertiary Capture",
82 .formats = SNDRV_PCM_FMTBIT_S16 |
83 SNDRV_PCM_FMTBIT_S24 |
84 SNDRV_PCM_FMTBIT_S32,
85 .rates = SNDRV_PCM_RATE_8000 |
86 SNDRV_PCM_RATE_16000 |
87 SNDRV_PCM_RATE_32000 |
88 SNDRV_PCM_RATE_48000 |
89 SNDRV_PCM_RATE_96000,
90 .rate_min = 8000,
91 .rate_max = 96000,
92 .channels_min = 1,
93 .channels_max = 8,
94 },
95 .probe = &asoc_qcom_lpass_cpu_dai_probe,
96 .ops = &asoc_qcom_lpass_cpu_dai_ops,
97 },
98 [MI2S_QUATERNARY] = {
99 .id = MI2S_QUATERNARY,
100 .name = "Quatenary MI2S",
101 .playback = {
102 .stream_name = "Quatenary Playback",
103 .formats = SNDRV_PCM_FMTBIT_S16 |
104 SNDRV_PCM_FMTBIT_S24 |
105 SNDRV_PCM_FMTBIT_S32,
106 .rates = SNDRV_PCM_RATE_8000 |
107 SNDRV_PCM_RATE_16000 |
108 SNDRV_PCM_RATE_32000 |
109 SNDRV_PCM_RATE_48000 |
110 SNDRV_PCM_RATE_96000,
111 .rate_min = 8000,
112 .rate_max = 96000,
113 .channels_min = 1,
114 .channels_max = 8,
115 },
116 .capture = {
117 .stream_name = "Quatenary Capture",
118 .formats = SNDRV_PCM_FMTBIT_S16 |
119 SNDRV_PCM_FMTBIT_S24 |
120 SNDRV_PCM_FMTBIT_S32,
121 .rates = SNDRV_PCM_RATE_8000 |
122 SNDRV_PCM_RATE_16000 |
123 SNDRV_PCM_RATE_32000 |
124 SNDRV_PCM_RATE_48000 |
125 SNDRV_PCM_RATE_96000,
126 .rate_min = 8000,
127 .rate_max = 96000,
128 .channels_min = 1,
129 .channels_max = 8,
130 },
131 .probe = &asoc_qcom_lpass_cpu_dai_probe,
132 .ops = &asoc_qcom_lpass_cpu_dai_ops,
133 },
134};
135
136static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata)
137{
138 struct lpass_variant *v = drvdata->variant;
139 int chan = find_first_zero_bit(&drvdata->rdma_ch_bit_map,
140 v->rdma_channels);
141
142 if (chan >= v->rdma_channels)
143 return -EBUSY;
144
145 set_bit(chan, &drvdata->rdma_ch_bit_map);
146
147 return chan;
148}
149
150static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
151{
152 clear_bit(chan, &drvdata->rdma_ch_bit_map);
153
154 return 0;
155}
156
157static int apq8016_lpass_init(struct platform_device *pdev)
158{
159 struct lpass_data *drvdata = platform_get_drvdata(pdev);
160 struct device *dev = &pdev->dev;
161 int ret;
162
163 drvdata->pcnoc_mport_clk = devm_clk_get(dev, "pcnoc-mport-clk");
164 if (IS_ERR(drvdata->pcnoc_mport_clk)) {
165 dev_err(&pdev->dev, "%s() error getting pcnoc-mport-clk: %ld\n",
166 __func__, PTR_ERR(drvdata->pcnoc_mport_clk));
167 return PTR_ERR(drvdata->pcnoc_mport_clk);
168 }
169
170 ret = clk_prepare_enable(drvdata->pcnoc_mport_clk);
171 if (ret) {
172 dev_err(&pdev->dev, "%s() Error enabling pcnoc-mport-clk: %d\n",
173 __func__, ret);
174 return ret;
175 }
176
177 drvdata->pcnoc_sway_clk = devm_clk_get(dev, "pcnoc-sway-clk");
178 if (IS_ERR(drvdata->pcnoc_sway_clk)) {
179 dev_err(&pdev->dev, "%s() error getting pcnoc-sway-clk: %ld\n",
180 __func__, PTR_ERR(drvdata->pcnoc_sway_clk));
181 return PTR_ERR(drvdata->pcnoc_sway_clk);
182 }
183
184 ret = clk_prepare_enable(drvdata->pcnoc_sway_clk);
185 if (ret) {
186 dev_err(&pdev->dev, "%s() Error enabling pcnoc_sway_clk: %d\n",
187 __func__, ret);
188 return ret;
189 }
190
191 return 0;
192}
193
194static int apq8016_lpass_exit(struct platform_device *pdev)
195{
196 struct lpass_data *drvdata = platform_get_drvdata(pdev);
197
198 clk_disable_unprepare(drvdata->pcnoc_mport_clk);
199 clk_disable_unprepare(drvdata->pcnoc_sway_clk);
200
201 return 0;
202}
203
204
205static struct lpass_variant apq8016_data = {
206 .i2sctrl_reg_base = 0x1000,
207 .i2sctrl_reg_stride = 0x1000,
208 .i2s_ports = 4,
209 .irq_reg_base = 0x6000,
210 .irq_reg_stride = 0x1000,
211 .irq_ports = 3,
212 .rdma_reg_base = 0x8400,
213 .rdma_reg_stride = 0x1000,
214 .rdma_channels = 2,
215 .rdmactl_audif_start = 1,
216 .dai_driver = apq8016_lpass_cpu_dai_driver,
217 .num_dai = ARRAY_SIZE(apq8016_lpass_cpu_dai_driver),
218 .init = apq8016_lpass_init,
219 .exit = apq8016_lpass_exit,
220 .alloc_dma_channel = apq8016_lpass_alloc_dma_channel,
221 .free_dma_channel = apq8016_lpass_free_dma_channel,
222};
223
224static const struct of_device_id apq8016_lpass_cpu_device_id[] = {
225 { .compatible = "qcom,lpass-cpu-apq8016", .data = &apq8016_data },
226 {}
227};
228MODULE_DEVICE_TABLE(of, apq8016_lpass_cpu_device_id);
229
230static struct platform_driver apq8016_lpass_cpu_platform_driver = {
231 .driver = {
232 .name = "apq8016-lpass-cpu",
233 .of_match_table = of_match_ptr(apq8016_lpass_cpu_device_id),
234 },
235 .probe = asoc_qcom_lpass_cpu_platform_probe,
236 .remove = asoc_qcom_lpass_cpu_platform_remove,
237};
238module_platform_driver(apq8016_lpass_cpu_platform_driver);
239
240MODULE_DESCRIPTION("APQ8016 LPASS CPU Driver");
241MODULE_LICENSE("GPL v2");
242
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index deecae9f64f9..d6e86c119e74 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -54,6 +54,10 @@ struct lpass_data {
54 54
55 /* used it for handling interrupt per dma channel */ 55 /* used it for handling interrupt per dma channel */
56 struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS]; 56 struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS];
57
58 /* 8016 specific */
59 struct clk *pcnoc_mport_clk;
60 struct clk *pcnoc_sway_clk;
57}; 61};
58 62
59/* Vairant data per each SOC */ 63/* Vairant data per each SOC */
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-01 13:19:14 -0400