Merge series "ASoC: qcom: Add support for SC7180 lpass variant" from Rohit kumar <rohitkr@codeaurora.org>:

This patch chain add audio support for SC7180 soc by doing the required
modification in existing common lpass-cpu/lpass-platform driver.
This also fixes some concurrency issue.

This patch series is already tested by Srinivas on Dragon Board 410c.
Changes since v5:
        - Fixed remove api in lpass-sc7180.c
        - Addressed comments by Rob in yaml Documentation.

Ajit Pandey (4):
  ASoC: qcom: Add common array to initialize soc based core clocks
  ASoC: qcom: lpass-platform: Replace card->dev with component->dev
  include: dt-bindings: sound: Add sc7180-lpass bindings header
  ASoC: qcom: lpass-sc7180: Add platform driver for lpass audio

Rohit kumar (8):
  ASoC: qcom: lpass-cpu: Move ahbix clk to platform specific function
  ASoC: qcom: lpass-platform: fix memory leak
  ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers
  ASoC: qcom: lpass-cpu: fix concurrency issue
  dt-bindings: sound: lpass-cpu: Add sc7180 lpass cpu node
  ASoC: qcom: lpass-cpu: Use platform_get_resource
  ASoC: qcom: lpass-platform: Use platform_get_irq
  dt-bindings: sound: lpass-cpu: Move to yaml format

 .../devicetree/bindings/sound/qcom,lpass-cpu.txt   |  79 --------
 .../devicetree/bindings/sound/qcom,lpass-cpu.yaml  | 189 ++++++++++++++++++
 include/dt-bindings/sound/sc7180-lpass.h           |  10 +
 sound/soc/qcom/Kconfig                             |   5 +
 sound/soc/qcom/Makefile                            |   2 +
 sound/soc/qcom/lpass-apq8016.c                     |  86 ++++++--
 sound/soc/qcom/lpass-cpu.c                         | 204 ++++++++++---------
 sound/soc/qcom/lpass-ipq806x.c                     |  67 +++++++
 sound/soc/qcom/lpass-lpaif-reg.h                   | 157 ++++++++-------
 sound/soc/qcom/lpass-platform.c                    | 155 +++++++++++----
 sound/soc/qcom/lpass-sc7180.c                      | 216 +++++++++++++++++++++
 sound/soc/qcom/lpass.h                             |  63 +++++-
 12 files changed, 934 insertions(+), 299 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
 create mode 100644 include/dt-bindings/sound/sc7180-lpass.h
 create mode 100644 sound/soc/qcom/lpass-sc7180.c

--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
This commit is contained in:
Mark Brown 2020-08-18 14:52:57 +01:00
commit cba62c8b49
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
12 changed files with 930 additions and 295 deletions

View File

@ -1,79 +0,0 @@
* Qualcomm Technologies LPASS CPU DAI
This node models the Qualcomm Technologies Low-Power Audio SubSystem (LPASS).
Required properties:
- compatible : "qcom,lpass-cpu" or "qcom,apq8016-lpass-cpu"
- clocks : Must contain an entry for each entry in clock-names.
- clock-names : A list which must include the following entries:
* "ahbix-clk"
* "mi2s-osr-clk"
* "mi2s-bit-clk"
: required clocks for "qcom,lpass-cpu-apq8016"
* "ahbix-clk"
* "mi2s-bit-clk0"
* "mi2s-bit-clk1"
* "mi2s-bit-clk2"
* "mi2s-bit-clk3"
* "pcnoc-mport-clk"
* "pcnoc-sway-clk"
- interrupts : Must contain an entry for each entry in
interrupt-names.
- interrupt-names : A list which must include the following entries:
* "lpass-irq-lpaif"
- pinctrl-N : One property must exist for each entry in
pinctrl-names. See ../pinctrl/pinctrl-bindings.txt
for details of the property values.
- pinctrl-names : Must contain a "default" entry.
- reg : Must contain an address for each entry in reg-names.
- reg-names : A list which must include the following entries:
* "lpass-lpaif"
- #address-cells : Must be 1
- #size-cells : Must be 0
Optional properties:
- qcom,adsp : Phandle for the audio DSP node
By default, the driver uses up to 4 MI2S SD lines, for a total of 8 channels.
The SD lines to use can be configured by adding subnodes for each of the DAIs.
Required properties for each DAI (represented by a subnode):
- reg : Must be one of the DAI IDs
(usually part of dt-bindings header)
- qcom,playback-sd-lines: List of serial data lines to use for playback
Each SD line should be represented by a number from 0-3.
- qcom,capture-sd-lines : List of serial data lines to use for capture
Each SD line should be represented by a number from 0-3.
Note that adding a subnode changes the default to "no lines configured",
so both playback and capture lines should be configured when a subnode is added.
Example:
lpass@28100000 {
compatible = "qcom,lpass-cpu";
clocks = <&lcc AHBIX_CLK>, <&lcc MI2S_OSR_CLK>, <&lcc MI2S_BIT_CLK>;
clock-names = "ahbix-clk", "mi2s-osr-clk", "mi2s-bit-clk";
interrupts = <0 85 1>;
interrupt-names = "lpass-irq-lpaif";
pinctrl-names = "default", "idle";
pinctrl-0 = <&mi2s_default>;
pinctrl-1 = <&mi2s_idle>;
reg = <0x28100000 0x10000>;
reg-names = "lpass-lpaif";
qcom,adsp = <&adsp>;
#address-cells = <1>;
#size-cells = <0>;
/* Optional to set different MI2S SD lines */
dai@3 {
reg = <MI2S_QUATERNARY>;
qcom,playback-sd-lines = <0 1>;
};
};

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@ -0,0 +1,189 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/qcom,lpass-cpu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Technologies Inc. LPASS CPU dai driver bindings
maintainers:
- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
- Rohit kumar <rohitkr@codeaurora.org>
description: |
Qualcomm Technologies Inc. SOC Low-Power Audio SubSystem (LPASS) that consist
of MI2S interface for audio data transfer on external codecs. LPASS cpu driver
is a module to configure Low-Power Audio Interface(LPAIF) core registers
across different IP versions.
properties:
compatible:
enum:
- qcom,lpass-cpu
- qcom,apq8016-lpass-cpu
- qcom,sc7180-lpass-cpu
reg:
maxItems: 1
description: LPAIF core registers
clocks:
minItems: 3
maxItems: 6
clock-names:
minItems: 3
maxItems: 6
interrupts:
maxItems: 1
description: LPAIF DMA buffer interrupt
qcom,adsp:
$ref: /schemas/types.yaml#/definitions/phandle
description: Phandle for the audio DSP node
iommus:
maxItems: 1
description: Phandle to apps_smmu node with sid mask
power-domains:
maxItems: 1
'#sound-dai-cells':
const: 1
'#address-cells':
const: 1
'#size-cells':
const: 0
patternProperties:
"(^mi2s-[0-9a-f]$|mi2s)":
type: object
description: Required properties for each DAI
properties:
reg:
maxItems: 1
description: Must be one of the DAI ID
qcom,playback-sd-lines:
$ref: /schemas/types.yaml#/definitions/uint32-array
description: list of MI2S data lines for playback
qcom,capture-sd-lines:
$ref: /schemas/types.yaml#/definitions/uint32-array
description: list of MI2S data lines for capture
required:
- reg
additionalProperties: false
required:
- compatible
- reg
- clocks
- clock-names
- interrupts
- '#sound-dai-cells'
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
const: qcom,lpass-cpu
then:
properties:
clock-names:
items:
- const: ahbix-clk
- const: mi2s-osr-clk
- const: mi2s-bit-clk
- if:
properties:
compatible:
contains:
const: qcom,apq8016-lpass-cpu
then:
properties:
clock-names:
items:
- const: ahbix-clk
- const: mi2s-bit-clk0
- const: mi2s-bit-clk1
- const: mi2s-bit-clk2
- const: mi2s-bit-clk3
- const: pcnoc-mport-clk
- const: pcnoc-sway-clk
- if:
properties:
compatible:
contains:
const: qcom,sc7180-lpass-cpu
then:
properties:
clock-names:
items:
- const: pcnoc-sway-clk
- const: audio-core
- const: mclk0
- const: pcnoc-mport-clk
- const: mi2s-bit-clk0
- const: mi2s-bit-clk1
required:
- iommus
- power-domains
examples:
- |
#include <dt-bindings/sound/sc7180-lpass.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
lpass@62f00000 {
compatible = "qcom,sc7180-lpass-cpu";
reg = <0 0x62f00000 0 0x29000>;
iommus = <&apps_smmu 0x1020 0>;
power-domains = <&lpass_hm 0>;
clocks = <&gcc 131>,
<&lpasscorecc 6>,
<&lpasscorecc 7>,
<&lpasscorecc 10>,
<&lpasscorecc 8>,
<&lpasscorecc 9>;
clock-names = "pcnoc-sway-clk", "audio-core",
"mclk0", "pcnoc-mport-clk",
"mi2s-bit-clk0", "mi2s-bit-clk1";
interrupts = <0 160 1>;
#sound-dai-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
/* Optional to set different MI2S SD lines */
mi2s-primary@0 {
reg = <MI2S_PRIMARY>;
qcom,playback-sd-lines = <1>;
qcom,capture-sd-lines = <0>;
};
};
};
...

View File

@ -0,0 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __DT_SC7180_LPASS_H
#define __DT_SC7180_LPASS_H
#define MI2S_PRIMARY 0
#define MI2S_SECONDARY 1
#define LPASS_MCLK0 0
#endif /* __DT_APQ8016_LPASS_H */

View File

@ -26,6 +26,11 @@ config SND_SOC_LPASS_APQ8016
select SND_SOC_LPASS_CPU
select SND_SOC_LPASS_PLATFORM
config SND_SOC_LPASS_SC7180
tristate
select SND_SOC_LPASS_CPU
select SND_SOC_LPASS_PLATFORM
config SND_SOC_STORM
tristate "ASoC I2S support for Storm boards"
select SND_SOC_LPASS_IPQ806X

View File

@ -4,11 +4,13 @@ snd-soc-lpass-cpu-objs := lpass-cpu.o
snd-soc-lpass-platform-objs := lpass-platform.o
snd-soc-lpass-ipq806x-objs := lpass-ipq806x.o
snd-soc-lpass-apq8016-objs := lpass-apq8016.o
snd-soc-lpass-sc7180-objs := lpass-sc7180.o
obj-$(CONFIG_SND_SOC_LPASS_CPU) += snd-soc-lpass-cpu.o
obj-$(CONFIG_SND_SOC_LPASS_PLATFORM) += snd-soc-lpass-platform.o
obj-$(CONFIG_SND_SOC_LPASS_IPQ806X) += snd-soc-lpass-ipq806x.o
obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
obj-$(CONFIG_SND_SOC_LPASS_SC7180) += snd-soc-lpass-sc7180.o
# Machine
snd-soc-storm-objs := storm.o

View File

@ -161,44 +161,65 @@ static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
static int apq8016_lpass_init(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
struct lpass_variant *variant = drvdata->variant;
struct device *dev = &pdev->dev;
int ret;
int ret, i;
drvdata->pcnoc_mport_clk = devm_clk_get(dev, "pcnoc-mport-clk");
if (IS_ERR(drvdata->pcnoc_mport_clk)) {
dev_err(dev, "error getting pcnoc-mport-clk: %ld\n",
PTR_ERR(drvdata->pcnoc_mport_clk));
return PTR_ERR(drvdata->pcnoc_mport_clk);
}
ret = clk_prepare_enable(drvdata->pcnoc_mport_clk);
drvdata->clks = devm_kcalloc(dev, variant->num_clks,
sizeof(*drvdata->clks), GFP_KERNEL);
drvdata->num_clks = variant->num_clks;
for (i = 0; i < drvdata->num_clks; i++)
drvdata->clks[i].id = variant->clk_name[i];
ret = devm_clk_bulk_get(dev, drvdata->num_clks, drvdata->clks);
if (ret) {
dev_err(dev, "Error enabling pcnoc-mport-clk: %d\n", ret);
dev_err(dev, "Failed to get clocks %d\n", ret);
return ret;
}
drvdata->pcnoc_sway_clk = devm_clk_get(dev, "pcnoc-sway-clk");
if (IS_ERR(drvdata->pcnoc_sway_clk)) {
dev_err(dev, "error getting pcnoc-sway-clk: %ld\n",
PTR_ERR(drvdata->pcnoc_sway_clk));
return PTR_ERR(drvdata->pcnoc_sway_clk);
ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks);
if (ret) {
dev_err(dev, "apq8016 clk_enable failed\n");
return ret;
}
ret = clk_prepare_enable(drvdata->pcnoc_sway_clk);
drvdata->ahbix_clk = devm_clk_get(dev, "ahbix-clk");
if (IS_ERR(drvdata->ahbix_clk)) {
dev_err(dev, "error getting ahbix-clk: %ld\n",
PTR_ERR(drvdata->ahbix_clk));
ret = PTR_ERR(drvdata->ahbix_clk);
goto err_ahbix_clk;
}
ret = clk_set_rate(drvdata->ahbix_clk, LPASS_AHBIX_CLOCK_FREQUENCY);
if (ret) {
dev_err(dev, "Error enabling pcnoc_sway_clk: %d\n", ret);
return ret;
dev_err(dev, "error setting rate on ahbix_clk: %d\n", ret);
goto err_ahbix_clk;
}
dev_dbg(dev, "set ahbix_clk rate to %lu\n",
clk_get_rate(drvdata->ahbix_clk));
ret = clk_prepare_enable(drvdata->ahbix_clk);
if (ret) {
dev_err(dev, "error enabling ahbix_clk: %d\n", ret);
goto err_ahbix_clk;
}
return 0;
err_ahbix_clk:
clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks);
return ret;
}
static int apq8016_lpass_exit(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
clk_disable_unprepare(drvdata->pcnoc_mport_clk);
clk_disable_unprepare(drvdata->pcnoc_sway_clk);
clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks);
clk_disable_unprepare(drvdata->ahbix_clk);
return 0;
}
@ -219,6 +240,35 @@ static struct lpass_variant apq8016_data = {
.wrdma_reg_stride = 0x1000,
.wrdma_channel_start = 5,
.wrdma_channels = 2,
.loopback = REG_FIELD_ID(0x1000, 15, 15, 4, 0x1000),
.spken = REG_FIELD_ID(0x1000, 14, 14, 4, 0x1000),
.spkmode = REG_FIELD_ID(0x1000, 10, 13, 4, 0x1000),
.spkmono = REG_FIELD_ID(0x1000, 9, 9, 4, 0x1000),
.micen = REG_FIELD_ID(0x1000, 8, 8, 4, 0x1000),
.micmode = REG_FIELD_ID(0x1000, 4, 7, 4, 0x1000),
.micmono = REG_FIELD_ID(0x1000, 3, 3, 4, 0x1000),
.wssrc = REG_FIELD_ID(0x1000, 2, 2, 4, 0x1000),
.bitwidth = REG_FIELD_ID(0x1000, 0, 0, 4, 0x1000),
.rdma_dyncclk = REG_FIELD_ID(0x8400, 12, 12, 2, 0x1000),
.rdma_bursten = REG_FIELD_ID(0x8400, 11, 11, 2, 0x1000),
.rdma_wpscnt = REG_FIELD_ID(0x8400, 8, 10, 2, 0x1000),
.rdma_intf = REG_FIELD_ID(0x8400, 4, 7, 2, 0x1000),
.rdma_fifowm = REG_FIELD_ID(0x8400, 1, 3, 2, 0x1000),
.rdma_enable = REG_FIELD_ID(0x8400, 0, 0, 2, 0x1000),
.wrdma_dyncclk = REG_FIELD_ID(0xB000, 12, 12, 2, 0x1000),
.wrdma_bursten = REG_FIELD_ID(0xB000, 11, 11, 2, 0x1000),
.wrdma_wpscnt = REG_FIELD_ID(0xB000, 8, 10, 2, 0x1000),
.wrdma_intf = REG_FIELD_ID(0xB000, 4, 7, 2, 0x1000),
.wrdma_fifowm = REG_FIELD_ID(0xB000, 1, 3, 2, 0x1000),
.wrdma_enable = REG_FIELD_ID(0xB000, 0, 0, 2, 0x1000),
.clk_name = (const char*[]) {
"pcnoc-mport-clk",
"pcnoc-sway-clk",
},
.num_clks = 2,
.dai_driver = apq8016_lpass_cpu_dai_driver,
.num_dai = ARRAY_SIZE(apq8016_lpass_cpu_dai_driver),
.dai_osr_clk_names = (const char *[]) {

View File

@ -29,6 +29,32 @@
#define LPASS_CPU_I2S_SD0_1_2_MASK GENMASK(2, 0)
#define LPASS_CPU_I2S_SD0_1_2_3_MASK GENMASK(3, 0)
static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
struct lpaif_i2sctl *i2sctl, struct regmap *map)
{
struct lpass_data *drvdata = dev_get_drvdata(dev);
struct lpass_variant *v = drvdata->variant;
i2sctl->loopback = devm_regmap_field_alloc(dev, map, v->loopback);
i2sctl->spken = devm_regmap_field_alloc(dev, map, v->spken);
i2sctl->spkmode = devm_regmap_field_alloc(dev, map, v->spkmode);
i2sctl->spkmono = devm_regmap_field_alloc(dev, map, v->spkmono);
i2sctl->micen = devm_regmap_field_alloc(dev, map, v->micen);
i2sctl->micmode = devm_regmap_field_alloc(dev, map, v->micmode);
i2sctl->micmono = devm_regmap_field_alloc(dev, map, v->micmono);
i2sctl->wssrc = devm_regmap_field_alloc(dev, map, v->wssrc);
i2sctl->bitwidth = devm_regmap_field_alloc(dev, map, v->bitwidth);
if (IS_ERR(i2sctl->loopback) || IS_ERR(i2sctl->spken) ||
IS_ERR(i2sctl->spkmode) || IS_ERR(i2sctl->spkmono) ||
IS_ERR(i2sctl->micen) || IS_ERR(i2sctl->micmode) ||
IS_ERR(i2sctl->micmono) || IS_ERR(i2sctl->wssrc) ||
IS_ERR(i2sctl->bitwidth))
return -EINVAL;
return 0;
}
static int lpass_cpu_daiops_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
@ -79,6 +105,8 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
unsigned int id = dai->driver->id;
snd_pcm_format_t format = params_format(params);
unsigned int channels = params_channels(params);
unsigned int rate = params_rate(params);
@ -92,28 +120,45 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
return bitwidth;
}
regval = LPAIF_I2SCTL_LOOPBACK_DISABLE |
LPAIF_I2SCTL_WSSRC_INTERNAL;
ret = regmap_fields_write(i2sctl->loopback, id,
LPAIF_I2SCTL_LOOPBACK_DISABLE);
if (ret) {
dev_err(dai->dev, "error updating loopback field: %d\n", ret);
return ret;
}
ret = regmap_fields_write(i2sctl->wssrc, id,
LPAIF_I2SCTL_WSSRC_INTERNAL);
if (ret) {
dev_err(dai->dev, "error updating wssrc field: %d\n", ret);
return ret;
}
switch (bitwidth) {
case 16:
regval |= LPAIF_I2SCTL_BITWIDTH_16;
regval = LPAIF_I2SCTL_BITWIDTH_16;
break;
case 24:
regval |= LPAIF_I2SCTL_BITWIDTH_24;
regval = LPAIF_I2SCTL_BITWIDTH_24;
break;
case 32:
regval |= LPAIF_I2SCTL_BITWIDTH_32;
regval = LPAIF_I2SCTL_BITWIDTH_32;
break;
default:
dev_err(dai->dev, "invalid bitwidth given: %d\n", bitwidth);
return -EINVAL;
}
ret = regmap_fields_write(i2sctl->bitwidth, id, regval);
if (ret) {
dev_err(dai->dev, "error updating bitwidth field: %d\n", ret);
return ret;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
mode = drvdata->mi2s_playback_sd_mode[dai->driver->id];
mode = drvdata->mi2s_playback_sd_mode[id];
else
mode = drvdata->mi2s_capture_sd_mode[dai->driver->id];
mode = drvdata->mi2s_capture_sd_mode[id];
if (!mode) {
dev_err(dai->dev, "no line is assigned\n");
@ -175,30 +220,42 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
regval |= LPAIF_I2SCTL_SPKMODE(mode);
ret = regmap_fields_write(i2sctl->spkmode, id,
LPAIF_I2SCTL_SPKMODE(mode));
if (ret) {
dev_err(dai->dev, "error writing to i2sctl spkr mode: %d\n",
ret);
return ret;
}
if (channels >= 2)
regval |= LPAIF_I2SCTL_SPKMONO_STEREO;
ret = regmap_fields_write(i2sctl->spkmono, id,
LPAIF_I2SCTL_SPKMONO_STEREO);
else
regval |= LPAIF_I2SCTL_SPKMONO_MONO;
ret = regmap_fields_write(i2sctl->spkmono, id,
LPAIF_I2SCTL_SPKMONO_MONO);
} else {
regval |= LPAIF_I2SCTL_MICMODE(mode);
ret = regmap_fields_write(i2sctl->micmode, id,
LPAIF_I2SCTL_MICMODE(mode));
if (ret) {
dev_err(dai->dev, "error writing to i2sctl mic mode: %d\n",
ret);
return ret;
}
if (channels >= 2)
regval |= LPAIF_I2SCTL_MICMONO_STEREO;
ret = regmap_fields_write(i2sctl->micmono, id,
LPAIF_I2SCTL_MICMONO_STEREO);
else
regval |= LPAIF_I2SCTL_MICMONO_MONO;
ret = regmap_fields_write(i2sctl->micmono, id,
LPAIF_I2SCTL_MICMONO_MONO);
}
ret = regmap_write(drvdata->lpaif_map,
LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
regval);
if (ret) {
dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
dev_err(dai->dev, "error writing to i2sctl channels mode: %d\n",
ret);
return ret;
}
ret = clk_set_rate(drvdata->mi2s_bit_clk[dai->driver->id],
ret = clk_set_rate(drvdata->mi2s_bit_clk[id],
rate * bitwidth * 2);
if (ret) {
dev_err(dai->dev, "error setting mi2s bitclk to %u: %d\n",
@ -209,41 +266,24 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
return 0;
}
static int lpass_cpu_daiops_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
int ret;
ret = regmap_write(drvdata->lpaif_map,
LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
0);
if (ret)
dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
return ret;
}
static int lpass_cpu_daiops_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
unsigned int id = dai->driver->id;
int ret;
unsigned int val, mask;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
val = LPAIF_I2SCTL_SPKEN_ENABLE;
mask = LPAIF_I2SCTL_SPKEN_MASK;
} else {
val = LPAIF_I2SCTL_MICEN_ENABLE;
mask = LPAIF_I2SCTL_MICEN_MASK;
ret = regmap_fields_write(i2sctl->spken, id,
LPAIF_I2SCTL_SPKEN_ENABLE);
} else {
ret = regmap_fields_write(i2sctl->micen, id,
LPAIF_I2SCTL_MICEN_ENABLE);
}
ret = regmap_update_bits(drvdata->lpaif_map,
LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
mask, val);
if (ret)
dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
dev_err(dai->dev, "error writing to i2sctl enable: %d\n", ret);
return ret;
}
@ -252,25 +292,21 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
unsigned int id = dai->driver->id;
int ret = -EINVAL;
unsigned int val, mask;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
val = LPAIF_I2SCTL_SPKEN_ENABLE;
mask = LPAIF_I2SCTL_SPKEN_MASK;
ret = regmap_fields_write(i2sctl->spken, id,
LPAIF_I2SCTL_SPKEN_ENABLE);
} else {
val = LPAIF_I2SCTL_MICEN_ENABLE;
mask = LPAIF_I2SCTL_MICEN_MASK;
ret = regmap_fields_write(i2sctl->micen, id,
LPAIF_I2SCTL_MICEN_ENABLE);
}
ret = regmap_update_bits(drvdata->lpaif_map,
LPAIF_I2SCTL_REG(drvdata->variant,
dai->driver->id),
mask, val);
if (ret)
dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
ret);
@ -279,17 +315,12 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
val = LPAIF_I2SCTL_SPKEN_DISABLE;
mask = LPAIF_I2SCTL_SPKEN_MASK;
ret = regmap_fields_write(i2sctl->spken, id,
LPAIF_I2SCTL_SPKEN_DISABLE);
} else {
val = LPAIF_I2SCTL_MICEN_DISABLE;
mask = LPAIF_I2SCTL_MICEN_MASK;
ret = regmap_fields_write(i2sctl->micen, id,
LPAIF_I2SCTL_MICEN_DISABLE);
}
ret = regmap_update_bits(drvdata->lpaif_map,
LPAIF_I2SCTL_REG(drvdata->variant,
dai->driver->id),
mask, val);
if (ret)
dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
ret);
@ -304,7 +335,6 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
.startup = lpass_cpu_daiops_startup,
.shutdown = lpass_cpu_daiops_shutdown,
.hw_params = lpass_cpu_daiops_hw_params,
.hw_free = lpass_cpu_daiops_hw_free,
.prepare = lpass_cpu_daiops_prepare,
.trigger = lpass_cpu_daiops_trigger,
};
@ -545,7 +575,7 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
of_lpass_cpu_parse_dai_data(dev, drvdata);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-lpaif");
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
drvdata->lpaif = devm_ioremap_resource(dev, res);
if (IS_ERR((void const __force *)drvdata->lpaif)) {
@ -566,8 +596,13 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
return PTR_ERR(drvdata->lpaif_map);
}
if (variant->init)
variant->init(pdev);
if (variant->init) {
ret = variant->init(pdev);
if (ret) {
dev_err(dev, "error initializing variant: %d\n", ret);
return ret;
}
}
for (i = 0; i < variant->num_dai; i++) {
dai_id = variant->dai_driver[i].id;
@ -594,24 +629,15 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
}
}
drvdata->ahbix_clk = devm_clk_get(dev, "ahbix-clk");
if (IS_ERR(drvdata->ahbix_clk)) {
dev_err(dev, "error getting ahbix-clk: %ld\n",
PTR_ERR(drvdata->ahbix_clk));
return PTR_ERR(drvdata->ahbix_clk);
}
/* Allocation for i2sctl regmap fields */
drvdata->i2sctl = devm_kzalloc(&pdev->dev, sizeof(struct lpaif_i2sctl),
GFP_KERNEL);
ret = clk_set_rate(drvdata->ahbix_clk, LPASS_AHBIX_CLOCK_FREQUENCY);
/* Initialize bitfields for dai I2SCTL register */
ret = lpass_cpu_init_i2sctl_bitfields(dev, drvdata->i2sctl,
drvdata->lpaif_map);
if (ret) {
dev_err(dev, "error setting rate on ahbix_clk: %d\n", ret);
return ret;
}
dev_dbg(dev, "set ahbix_clk rate to %lu\n",
clk_get_rate(drvdata->ahbix_clk));
ret = clk_prepare_enable(drvdata->ahbix_clk);
if (ret) {
dev_err(dev, "error enabling ahbix_clk: %d\n", ret);
dev_err(dev, "error init i2sctl field: %d\n", ret);
return ret;
}
@ -621,19 +647,16 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
variant->num_dai);
if (ret) {
dev_err(dev, "error registering cpu driver: %d\n", ret);
goto err_clk;
goto err;
}
ret = asoc_qcom_lpass_platform_register(pdev);
if (ret) {
dev_err(dev, "error registering platform driver: %d\n", ret);
goto err_clk;
goto err;
}
return 0;
err_clk:
clk_disable_unprepare(drvdata->ahbix_clk);
err:
return ret;
}
EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_probe);
@ -645,7 +668,6 @@ int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev)
if (drvdata->variant->exit)
drvdata->variant->exit(pdev);
clk_disable_unprepare(drvdata->ahbix_clk);
return 0;
}

View File

@ -55,6 +55,47 @@ static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = {
.ops = &asoc_qcom_lpass_cpu_dai_ops,
};
static int ipq806x_lpass_init(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
struct device *dev = &pdev->dev;
int ret;
drvdata->ahbix_clk = devm_clk_get(dev, "ahbix-clk");
if (IS_ERR(drvdata->ahbix_clk)) {
dev_err(dev, "error getting ahbix-clk: %ld\n",
PTR_ERR(drvdata->ahbix_clk));
ret = PTR_ERR(drvdata->ahbix_clk);
goto err_ahbix_clk;
}
ret = clk_set_rate(drvdata->ahbix_clk, LPASS_AHBIX_CLOCK_FREQUENCY);
if (ret) {
dev_err(dev, "error setting rate on ahbix_clk: %d\n", ret);
goto err_ahbix_clk;
}
dev_dbg(dev, "set ahbix_clk rate to %lu\n",
clk_get_rate(drvdata->ahbix_clk));
ret = clk_prepare_enable(drvdata->ahbix_clk);
if (ret) {
dev_err(dev, "error enabling ahbix_clk: %d\n", ret);
goto err_ahbix_clk;
}
err_ahbix_clk:
return ret;
}
static int ipq806x_lpass_exit(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
clk_disable_unprepare(drvdata->ahbix_clk);
return 0;
}
static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata, int dir)
{
if (dir == SNDRV_PCM_STREAM_PLAYBACK)
@ -82,6 +123,30 @@ static struct lpass_variant ipq806x_data = {
.wrdma_reg_stride = 0x1000,
.wrdma_channel_start = 5,
.wrdma_channels = 4,
.loopback = REG_FIELD_ID(0x0010, 15, 15, 5, 0x4),
.spken = REG_FIELD_ID(0x0010, 14, 14, 5, 0x4),
.spkmode = REG_FIELD_ID(0x0010, 10, 13, 5, 0x4),
.spkmono = REG_FIELD_ID(0x0010, 9, 9, 5, 0x4),
.micen = REG_FIELD_ID(0x0010, 8, 8, 5, 0x4),
.micmode = REG_FIELD_ID(0x0010, 4, 7, 5, 0x4),
.micmono = REG_FIELD_ID(0x0010, 3, 3, 5, 0x4),
.wssrc = REG_FIELD_ID(0x0010, 2, 2, 5, 0x4),
.bitwidth = REG_FIELD_ID(0x0010, 0, 0, 5, 0x4),
.rdma_dyncclk = REG_FIELD_ID(0x6000, 12, 12, 4, 0x1000),
.rdma_bursten = REG_FIELD_ID(0x6000, 11, 11, 4, 0x1000),
.rdma_wpscnt = REG_FIELD_ID(0x6000, 8, 10, 4, 0x1000),
.rdma_intf = REG_FIELD_ID(0x6000, 4, 7, 4, 0x1000),
.rdma_fifowm = REG_FIELD_ID(0x6000, 1, 3, 4, 0x1000),
.rdma_enable = REG_FIELD_ID(0x6000, 0, 0, 4, 0x1000),
.wrdma_dyncclk = REG_FIELD_ID(0xB000, 12, 12, 4, 0x1000),
.wrdma_bursten = REG_FIELD_ID(0xB000, 11, 11, 4, 0x1000),
.wrdma_wpscnt = REG_FIELD_ID(0xB000, 8, 10, 4, 0x1000),
.wrdma_intf = REG_FIELD_ID(0xB000, 4, 7, 4, 0x1000),
.wrdma_fifowm = REG_FIELD_ID(0xB000, 1, 3, 4, 0x1000),
.wrdma_enable = REG_FIELD_ID(0xB000, 0, 0, 4, 0x1000),
.dai_driver = &ipq806x_lpass_cpu_dai_driver,
.num_dai = 1,
.dai_osr_clk_names = (const char *[]) {
@ -90,6 +155,8 @@ static struct lpass_variant ipq806x_data = {
.dai_bit_clk_names = (const char *[]) {
"mi2s-bit-clk",
},
.init = ipq806x_lpass_init,
.exit = ipq806x_lpass_exit,
.alloc_dma_channel = ipq806x_lpass_alloc_dma_channel,
.free_dma_channel = ipq806x_lpass_free_dma_channel,
};

View File

@ -12,15 +12,12 @@
(v->i2sctrl_reg_base + (addr) + v->i2sctrl_reg_stride * (port))
#define LPAIF_I2SCTL_REG(v, port) LPAIF_I2SCTL_REG_ADDR(v, 0x0, (port))
#define LPAIF_I2SCTL_LOOPBACK_MASK 0x8000
#define LPAIF_I2SCTL_LOOPBACK_SHIFT 15
#define LPAIF_I2SCTL_LOOPBACK_DISABLE (0 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
#define LPAIF_I2SCTL_LOOPBACK_ENABLE (1 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
#define LPAIF_I2SCTL_SPKEN_MASK 0x4000
#define LPAIF_I2SCTL_SPKEN_SHIFT 14
#define LPAIF_I2SCTL_SPKEN_DISABLE (0 << LPAIF_I2SCTL_SPKEN_SHIFT)
#define LPAIF_I2SCTL_SPKEN_ENABLE (1 << LPAIF_I2SCTL_SPKEN_SHIFT)
#define LPAIF_I2SCTL_LOOPBACK_DISABLE 0
#define LPAIF_I2SCTL_LOOPBACK_ENABLE 1
#define LPAIF_I2SCTL_SPKEN_DISABLE 0
#define LPAIF_I2SCTL_SPKEN_ENABLE 1
#define LPAIF_I2SCTL_MODE_NONE 0
#define LPAIF_I2SCTL_MODE_SD0 1
@ -31,40 +28,37 @@
#define LPAIF_I2SCTL_MODE_QUAD23 6
#define LPAIF_I2SCTL_MODE_6CH 7
#define LPAIF_I2SCTL_MODE_8CH 8
#define LPAIF_I2SCTL_MODE_10CH 9
#define LPAIF_I2SCTL_MODE_12CH 10
#define LPAIF_I2SCTL_MODE_14CH 11
#define LPAIF_I2SCTL_MODE_16CH 12
#define LPAIF_I2SCTL_MODE_SD4 13
#define LPAIF_I2SCTL_MODE_SD5 14
#define LPAIF_I2SCTL_MODE_SD6 15
#define LPAIF_I2SCTL_MODE_SD7 16
#define LPAIF_I2SCTL_MODE_QUAD45 17
#define LPAIF_I2SCTL_MODE_QUAD47 18
#define LPAIF_I2SCTL_MODE_8CH_2 19
#define LPAIF_I2SCTL_SPKMODE_MASK 0x3C00
#define LPAIF_I2SCTL_SPKMODE_SHIFT 10
#define LPAIF_I2SCTL_SPKMODE(mode) ((mode) << LPAIF_I2SCTL_SPKMODE_SHIFT)
#define LPAIF_I2SCTL_SPKMODE(mode) mode
#define LPAIF_I2SCTL_SPKMONO_MASK 0x0200
#define LPAIF_I2SCTL_SPKMONO_SHIFT 9
#define LPAIF_I2SCTL_SPKMONO_STEREO (0 << LPAIF_I2SCTL_SPKMONO_SHIFT)
#define LPAIF_I2SCTL_SPKMONO_MONO (1 << LPAIF_I2SCTL_SPKMONO_SHIFT)
#define LPAIF_I2SCTL_SPKMONO_STEREO 0
#define LPAIF_I2SCTL_SPKMONO_MONO 1
#define LPAIF_I2SCTL_MICEN_MASK GENMASK(8, 8)
#define LPAIF_I2SCTL_MICEN_SHIFT 8
#define LPAIF_I2SCTL_MICEN_DISABLE (0 << LPAIF_I2SCTL_MICEN_SHIFT)
#define LPAIF_I2SCTL_MICEN_ENABLE (1 << LPAIF_I2SCTL_MICEN_SHIFT)
#define LPAIF_I2SCTL_MICEN_DISABLE 0
#define LPAIF_I2SCTL_MICEN_ENABLE 1
#define LPAIF_I2SCTL_MICMODE_MASK GENMASK(7, 4)
#define LPAIF_I2SCTL_MICMODE_SHIFT 4
#define LPAIF_I2SCTL_MICMODE(mode) ((mode) << LPAIF_I2SCTL_MICMODE_SHIFT)
#define LPAIF_I2SCTL_MICMODE(mode) mode
#define LPAIF_I2SCTL_MIMONO_MASK GENMASK(3, 3)
#define LPAIF_I2SCTL_MICMONO_SHIFT 3
#define LPAIF_I2SCTL_MICMONO_STEREO (0 << LPAIF_I2SCTL_MICMONO_SHIFT)
#define LPAIF_I2SCTL_MICMONO_MONO (1 << LPAIF_I2SCTL_MICMONO_SHIFT)
#define LPAIF_I2SCTL_MICMONO_STEREO 0
#define LPAIF_I2SCTL_MICMONO_MONO 1
#define LPAIF_I2SCTL_WSSRC_MASK 0x0004
#define LPAIF_I2SCTL_WSSRC_SHIFT 2
#define LPAIF_I2SCTL_WSSRC_INTERNAL (0 << LPAIF_I2SCTL_WSSRC_SHIFT)
#define LPAIF_I2SCTL_WSSRC_EXTERNAL (1 << LPAIF_I2SCTL_WSSRC_SHIFT)
#define LPAIF_I2SCTL_WSSRC_INTERNAL 0
#define LPAIF_I2SCTL_WSSRC_EXTERNAL 1
#define LPAIF_I2SCTL_BITWIDTH_MASK 0x0003
#define LPAIF_I2SCTL_BITWIDTH_SHIFT 0
#define LPAIF_I2SCTL_BITWIDTH_16 (0 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
#define LPAIF_I2SCTL_BITWIDTH_24 (1 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
#define LPAIF_I2SCTL_BITWIDTH_32 (2 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
#define LPAIF_I2SCTL_BITWIDTH_16 0
#define LPAIF_I2SCTL_BITWIDTH_24 1
#define LPAIF_I2SCTL_BITWIDTH_32 2
/* LPAIF IRQ */
#define LPAIF_IRQ_REG_ADDR(v, addr, port) \
@ -121,42 +115,59 @@
#define LPAIF_DMAPER_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, PER)
#define LPAIF_DMAPERCNT_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, PERCNT)
#define LPAIF_DMACTL_BURSTEN_MASK 0x800
#define LPAIF_DMACTL_BURSTEN_SHIFT 11
#define LPAIF_DMACTL_BURSTEN_SINGLE (0 << LPAIF_DMACTL_BURSTEN_SHIFT)
#define LPAIF_DMACTL_BURSTEN_INCR4 (1 << LPAIF_DMACTL_BURSTEN_SHIFT)
#define LPAIF_DMACTL_BURSTEN_SINGLE 0
#define LPAIF_DMACTL_BURSTEN_INCR4 1
#define LPAIF_DMACTL_WPSCNT_MASK 0x700
#define LPAIF_DMACTL_WPSCNT_SHIFT 8
#define LPAIF_DMACTL_WPSCNT_ONE (0 << LPAIF_DMACTL_WPSCNT_SHIFT)
#define LPAIF_DMACTL_WPSCNT_TWO (1 << LPAIF_DMACTL_WPSCNT_SHIFT)
#define LPAIF_DMACTL_WPSCNT_THREE (2 << LPAIF_DMACTL_WPSCNT_SHIFT)
#define LPAIF_DMACTL_WPSCNT_FOUR (3 << LPAIF_DMACTL_WPSCNT_SHIFT)
#define LPAIF_DMACTL_WPSCNT_SIX (5 << LPAIF_DMACTL_WPSCNT_SHIFT)
#define LPAIF_DMACTL_WPSCNT_EIGHT (7 << LPAIF_DMACTL_WPSCNT_SHIFT)
#define LPAIF_DMACTL_WPSCNT_ONE 0
#define LPAIF_DMACTL_WPSCNT_TWO 1
#define LPAIF_DMACTL_WPSCNT_THREE 2
#define LPAIF_DMACTL_WPSCNT_FOUR 3
#define LPAIF_DMACTL_WPSCNT_SIX 5
#define LPAIF_DMACTL_WPSCNT_EIGHT 7
#define LPAIF_DMACTL_WPSCNT_TEN 9
#define LPAIF_DMACTL_WPSCNT_TWELVE 11
#define LPAIF_DMACTL_WPSCNT_FOURTEEN 13
#define LPAIF_DMACTL_WPSCNT_SIXTEEN 15
#define LPAIF_DMACTL_AUDINTF_MASK 0x0F0
#define LPAIF_DMACTL_AUDINTF_SHIFT 4
#define LPAIF_DMACTL_AUDINTF(id) (id << LPAIF_DMACTL_AUDINTF_SHIFT)
#define LPAIF_DMACTL_AUDINTF(id) id
#define LPAIF_DMACTL_FIFOWM_MASK 0x00E
#define LPAIF_DMACTL_FIFOWM_SHIFT 1
#define LPAIF_DMACTL_FIFOWM_1 (0 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_2 (1 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_3 (2 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_4 (3 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_5 (4 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_6 (5 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_7 (6 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_8 (7 << LPAIF_DMACTL_FIFOWM_SHIFT)
#define LPAIF_DMACTL_FIFOWM_1 0
#define LPAIF_DMACTL_FIFOWM_2 1
#define LPAIF_DMACTL_FIFOWM_3 2
#define LPAIF_DMACTL_FIFOWM_4 3
#define LPAIF_DMACTL_FIFOWM_5 4
#define LPAIF_DMACTL_FIFOWM_6 5
#define LPAIF_DMACTL_FIFOWM_7 6
#define LPAIF_DMACTL_FIFOWM_8 7
#define LPAIF_DMACTL_FIFOWM_9 8
#define LPAIF_DMACTL_FIFOWM_10 9
#define LPAIF_DMACTL_FIFOWM_11 10
#define LPAIF_DMACTL_FIFOWM_12 11
#define LPAIF_DMACTL_FIFOWM_13 12
#define LPAIF_DMACTL_FIFOWM_14 13
#define LPAIF_DMACTL_FIFOWM_15 14
#define LPAIF_DMACTL_FIFOWM_16 15
#define LPAIF_DMACTL_FIFOWM_17 16
#define LPAIF_DMACTL_FIFOWM_18 17
#define LPAIF_DMACTL_FIFOWM_19 18
#define LPAIF_DMACTL_FIFOWM_20 19
#define LPAIF_DMACTL_FIFOWM_21 20
#define LPAIF_DMACTL_FIFOWM_22 21
#define LPAIF_DMACTL_FIFOWM_23 22
#define LPAIF_DMACTL_FIFOWM_24 23
#define LPAIF_DMACTL_FIFOWM_25 24
#define LPAIF_DMACTL_FIFOWM_26 25
#define LPAIF_DMACTL_FIFOWM_27 26
#define LPAIF_DMACTL_FIFOWM_28 27
#define LPAIF_DMACTL_FIFOWM_29 28
#define LPAIF_DMACTL_FIFOWM_30 29
#define LPAIF_DMACTL_FIFOWM_31 30
#define LPAIF_DMACTL_FIFOWM_32 31
#define LPAIF_DMACTL_ENABLE_MASK 0x1
#define LPAIF_DMACTL_ENABLE_SHIFT 0
#define LPAIF_DMACTL_ENABLE_OFF (0 << LPAIF_DMACTL_ENABLE_SHIFT)
#define LPAIF_DMACTL_ENABLE_ON (1 << LPAIF_DMACTL_ENABLE_SHIFT)
#define LPAIF_DMACTL_ENABLE_OFF 0
#define LPAIF_DMACTL_ENABLE_ON 1
#define LPAIF_DMACTL_DYNCLK_OFF 0
#define LPAIF_DMACTL_DYNCLK_ON 1
#define LPAIF_DMACTL_DYNCLK_MASK BIT(12)
#define LPAIF_DMACTL_DYNCLK_SHIFT 12
#define LPAIF_DMACTL_DYNCLK_OFF (0 << LPAIF_DMACTL_DYNCLK_SHIFT)
#define LPAIF_DMACTL_DYNCLK_ON (1 << LPAIF_DMACTL_DYNCLK_SHIFT)
#endif /* __LPASS_LPAIF_REG_H__ */

View File

@ -50,6 +50,53 @@ static const struct snd_pcm_hardware lpass_platform_pcm_hardware = {
.fifo_size = 0,
};
static int lpass_platform_alloc_dmactl_fields(struct device *dev,
struct regmap *map)
{
struct lpass_data *drvdata = dev_get_drvdata(dev);
struct lpass_variant *v = drvdata->variant;
struct lpaif_dmactl *rd_dmactl, *wr_dmactl;
drvdata->rd_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl),
GFP_KERNEL);
if (drvdata->rd_dmactl == NULL)
return -ENOMEM;
drvdata->wr_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl),
GFP_KERNEL);
if (drvdata->wr_dmactl == NULL)
return -ENOMEM;
rd_dmactl = drvdata->rd_dmactl;
wr_dmactl = drvdata->wr_dmactl;
rd_dmactl->bursten = devm_regmap_field_alloc(dev, map, v->rdma_bursten);
rd_dmactl->wpscnt = devm_regmap_field_alloc(dev, map, v->rdma_wpscnt);
rd_dmactl->fifowm = devm_regmap_field_alloc(dev, map, v->rdma_fifowm);
rd_dmactl->intf = devm_regmap_field_alloc(dev, map, v->rdma_intf);
rd_dmactl->enable = devm_regmap_field_alloc(dev, map, v->rdma_enable);
rd_dmactl->dyncclk = devm_regmap_field_alloc(dev, map, v->rdma_dyncclk);
if (IS_ERR(rd_dmactl->bursten) || IS_ERR(rd_dmactl->wpscnt) ||
IS_ERR(rd_dmactl->fifowm) || IS_ERR(rd_dmactl->intf) ||
IS_ERR(rd_dmactl->enable) || IS_ERR(rd_dmactl->dyncclk))
return -EINVAL;
wr_dmactl->bursten = devm_regmap_field_alloc(dev, map, v->wrdma_bursten);
wr_dmactl->wpscnt = devm_regmap_field_alloc(dev, map, v->wrdma_wpscnt);
wr_dmactl->fifowm = devm_regmap_field_alloc(dev, map, v->wrdma_fifowm);
wr_dmactl->intf = devm_regmap_field_alloc(dev, map, v->wrdma_intf);
wr_dmactl->enable = devm_regmap_field_alloc(dev, map, v->wrdma_enable);
wr_dmactl->dyncclk = devm_regmap_field_alloc(dev, map, v->wrdma_dyncclk);
if (IS_ERR(wr_dmactl->bursten) || IS_ERR(wr_dmactl->wpscnt) ||
IS_ERR(wr_dmactl->fifowm) || IS_ERR(wr_dmactl->intf) ||
IS_ERR(wr_dmactl->enable) || IS_ERR(wr_dmactl->dyncclk))
return -EINVAL;
return 0;
}
static int lpass_platform_pcmops_open(struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
@ -61,7 +108,7 @@ static int lpass_platform_pcmops_open(struct snd_soc_component *component,
int ret, dma_ch, dir = substream->stream;
struct lpass_pcm_data *data;
data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL);
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
@ -118,6 +165,7 @@ static int lpass_platform_pcmops_close(struct snd_soc_component *component,
if (v->free_dma_channel)
v->free_dma_channel(drvdata, data->dma_ch);
kfree(data);
return 0;
}
@ -133,11 +181,18 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
snd_pcm_format_t format = params_format(params);
unsigned int channels = params_channels(params);
unsigned int regval;
int ch, dir = substream->stream;
struct lpaif_dmactl *dmactl;
int id, dir = substream->stream;
int bitwidth;
int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;
ch = pcm_data->dma_ch;
if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
dmactl = drvdata->rd_dmactl;
id = pcm_data->dma_ch;
} else {
dmactl = drvdata->wr_dmactl;
id = pcm_data->dma_ch - v->wrdma_channel_start;
}
bitwidth = snd_pcm_format_width(format);
if (bitwidth < 0) {
@ -146,25 +201,39 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
return bitwidth;
}
regval = LPAIF_DMACTL_BURSTEN_INCR4 |
LPAIF_DMACTL_AUDINTF(dma_port) |
LPAIF_DMACTL_FIFOWM_8;
ret = regmap_fields_write(dmactl->bursten, id, LPAIF_DMACTL_BURSTEN_INCR4);
if (ret) {
dev_err(soc_runtime->dev, "error updating bursten field: %d\n", ret);
return ret;
}
regmap_fields_write(dmactl->fifowm, id, LPAIF_DMACTL_FIFOWM_8);
if (ret) {
dev_err(soc_runtime->dev, "error updating fifowm field: %d\n", ret);
return ret;
}
regmap_fields_write(dmactl->intf, id, LPAIF_DMACTL_AUDINTF(dma_port));
if (ret) {
dev_err(soc_runtime->dev, "error updating audintf field: %d\n", ret);
return ret;
}
switch (bitwidth) {
case 16:
switch (channels) {
case 1:
case 2:
regval |= LPAIF_DMACTL_WPSCNT_ONE;
regval = LPAIF_DMACTL_WPSCNT_ONE;
break;
case 4:
regval |= LPAIF_DMACTL_WPSCNT_TWO;
regval = LPAIF_DMACTL_WPSCNT_TWO;
break;
case 6:
regval |= LPAIF_DMACTL_WPSCNT_THREE;
regval = LPAIF_DMACTL_WPSCNT_THREE;
break;
case 8:
regval |= LPAIF_DMACTL_WPSCNT_FOUR;
regval = LPAIF_DMACTL_WPSCNT_FOUR;
break;
default:
dev_err(soc_runtime->dev,
@ -177,19 +246,19 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
case 32:
switch (channels) {
case 1:
regval |= LPAIF_DMACTL_WPSCNT_ONE;
regval = LPAIF_DMACTL_WPSCNT_ONE;
break;
case 2:
regval |= LPAIF_DMACTL_WPSCNT_TWO;
regval = LPAIF_DMACTL_WPSCNT_TWO;
break;
case 4:
regval |= LPAIF_DMACTL_WPSCNT_FOUR;
regval = LPAIF_DMACTL_WPSCNT_FOUR;
break;
case 6:
regval |= LPAIF_DMACTL_WPSCNT_SIX;
regval = LPAIF_DMACTL_WPSCNT_SIX;
break;
case 8:
regval |= LPAIF_DMACTL_WPSCNT_EIGHT;
regval = LPAIF_DMACTL_WPSCNT_EIGHT;
break;
default:
dev_err(soc_runtime->dev,
@ -204,10 +273,9 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
return -EINVAL;
}
ret = regmap_write(drvdata->lpaif_map,
LPAIF_DMACTL_REG(v, ch, dir), regval);
ret = regmap_fields_write(dmactl->wpscnt, id, regval);
if (ret) {
dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n",
dev_err(soc_runtime->dev, "error writing to dmactl reg: %d\n",
ret);
return ret;
}
@ -244,9 +312,17 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
struct snd_pcm_runtime *rt = substream->runtime;
struct lpass_pcm_data *pcm_data = rt->private_data;
struct lpass_variant *v = drvdata->variant;
int ret, ch, dir = substream->stream;
struct lpaif_dmactl *dmactl;
int ret, id, ch, dir = substream->stream;
ch = pcm_data->dma_ch;
if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
dmactl = drvdata->rd_dmactl;
id = pcm_data->dma_ch;
} else {
dmactl = drvdata->wr_dmactl;
id = pcm_data->dma_ch - v->wrdma_channel_start;
}
ret = regmap_write(drvdata->lpaif_map,
LPAIF_DMABASE_REG(v, ch, dir),
@ -275,9 +351,7 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
return ret;
}
ret = regmap_update_bits(drvdata->lpaif_map,
LPAIF_DMACTL_REG(v, ch, dir),
LPAIF_DMACTL_ENABLE_MASK, LPAIF_DMACTL_ENABLE_ON);
ret = regmap_fields_write(dmactl->enable, id, LPAIF_DMACTL_ENABLE_ON);
if (ret) {
dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n",
ret);
@ -296,9 +370,18 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
struct snd_pcm_runtime *rt = substream->runtime;
struct lpass_pcm_data *pcm_data = rt->private_data;
struct lpass_variant *v = drvdata->variant;
int ret, ch, dir = substream->stream;
struct lpaif_dmactl *dmactl;
int ret, ch, id;
int dir = substream->stream;
ch = pcm_data->dma_ch;
if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
dmactl = drvdata->rd_dmactl;
id = pcm_data->dma_ch;
} else {
dmactl = drvdata->wr_dmactl;
id = pcm_data->dma_ch - v->wrdma_channel_start;
}
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
@ -324,10 +407,8 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
return ret;
}
ret = regmap_update_bits(drvdata->lpaif_map,
LPAIF_DMACTL_REG(v, ch, dir),
LPAIF_DMACTL_ENABLE_MASK,
LPAIF_DMACTL_ENABLE_ON);
ret = regmap_fields_write(dmactl->enable, id,
LPAIF_DMACTL_ENABLE_ON);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg: %d\n", ret);
@ -337,10 +418,8 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
ret = regmap_update_bits(drvdata->lpaif_map,
LPAIF_DMACTL_REG(v, ch, dir),
LPAIF_DMACTL_ENABLE_MASK,
LPAIF_DMACTL_ENABLE_OFF);
ret = regmap_fields_write(dmactl->enable, id,
LPAIF_DMACTL_ENABLE_OFF);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg: %d\n", ret);
@ -400,9 +479,8 @@ static int lpass_platform_pcmops_mmap(struct snd_soc_component *component,
{
struct snd_pcm_runtime *runtime = substream->runtime;
return dma_mmap_coherent(substream->pcm->card->dev, vma,
runtime->dma_area, runtime->dma_addr,
runtime->dma_bytes);
return dma_mmap_coherent(component->dev, vma, runtime->dma_area,
runtime->dma_addr, runtime->dma_bytes);
}
static irqreturn_t lpass_dma_interrupt_handler(
@ -560,7 +638,7 @@ int asoc_qcom_lpass_platform_register(struct platform_device *pdev)
struct lpass_variant *v = drvdata->variant;
int ret;
drvdata->lpaif_irq = platform_get_irq_byname(pdev, "lpass-irq-lpaif");
drvdata->lpaif_irq = platform_get_irq(pdev, 0);
if (drvdata->lpaif_irq < 0)
return -ENODEV;
@ -580,6 +658,13 @@ int asoc_qcom_lpass_platform_register(struct platform_device *pdev)
return ret;
}
ret = lpass_platform_alloc_dmactl_fields(&pdev->dev,
drvdata->lpaif_map);
if (ret) {
dev_err(&pdev->dev,
"error initializing dmactl fields: %d\n", ret);
return ret;
}
return devm_snd_soc_register_component(&pdev->dev,
&lpass_component_driver, NULL, 0);

View File

@ -0,0 +1,216 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
*
* lpass-sc7180.c -- ALSA SoC platform-machine driver for QTi LPASS
*/
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <dt-bindings/sound/sc7180-lpass.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include "lpass-lpaif-reg.h"
#include "lpass.h"
static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = {
[MI2S_PRIMARY] = {
.id = MI2S_PRIMARY,
.name = "Primary MI2S",
.playback = {
.stream_name = "Primary Playback",
.formats = SNDRV_PCM_FMTBIT_S16,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
},
.capture = {
.stream_name = "Primary Capture",
.formats = SNDRV_PCM_FMTBIT_S16,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
},
[MI2S_SECONDARY] = {
.id = MI2S_SECONDARY,
.name = "Secondary MI2S",
.playback = {
.stream_name = "Secondary Playback",
.formats = SNDRV_PCM_FMTBIT_S16,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
},
};
static int sc7180_lpass_alloc_dma_channel(struct lpass_data *drvdata,
int direction)
{
struct lpass_variant *v = drvdata->variant;
int chan = 0;
if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
chan = find_first_zero_bit(&drvdata->dma_ch_bit_map,
v->rdma_channels);
if (chan >= v->rdma_channels)
return -EBUSY;
} else {
chan = find_next_zero_bit(&drvdata->dma_ch_bit_map,
v->wrdma_channel_start +
v->wrdma_channels,
v->wrdma_channel_start);
if (chan >= v->wrdma_channel_start + v->wrdma_channels)
return -EBUSY;
}
set_bit(chan, &drvdata->dma_ch_bit_map);
return chan;
}
static int sc7180_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
{
clear_bit(chan, &drvdata->dma_ch_bit_map);
return 0;
}
static int sc7180_lpass_init(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
struct lpass_variant *variant = drvdata->variant;
struct device *dev = &pdev->dev;
int ret, i;
drvdata->clks = devm_kcalloc(dev, variant->num_clks,
sizeof(*drvdata->clks), GFP_KERNEL);
drvdata->num_clks = variant->num_clks;
for (i = 0; i < drvdata->num_clks; i++)
drvdata->clks[i].id = variant->clk_name[i];
ret = devm_clk_bulk_get(dev, drvdata->num_clks, drvdata->clks);
if (ret) {
dev_err(dev, "Failed to get clocks %d\n", ret);
return ret;
}
ret = clk_bulk_prepare_enable(drvdata->num_clks, drvdata->clks);
if (ret) {
dev_err(dev, "sc7180 clk_enable failed\n");
return ret;
}
return 0;
}
static int sc7180_lpass_exit(struct platform_device *pdev)
{
struct lpass_data *drvdata = platform_get_drvdata(pdev);
clk_bulk_disable_unprepare(drvdata->num_clks, drvdata->clks);
return 0;
}
static struct lpass_variant sc7180_data = {
.i2sctrl_reg_base = 0x1000,
.i2sctrl_reg_stride = 0x1000,
.i2s_ports = 3,
.irq_reg_base = 0x9000,
.irq_reg_stride = 0x1000,
.irq_ports = 3,
.rdma_reg_base = 0xC000,
.rdma_reg_stride = 0x1000,
.rdma_channels = 5,
.dmactl_audif_start = 1,
.wrdma_reg_base = 0x18000,
.wrdma_reg_stride = 0x1000,
.wrdma_channel_start = 5,
.wrdma_channels = 4,
.loopback = REG_FIELD_ID(0x1000, 17, 17, 3, 0x1000),
.spken = REG_FIELD_ID(0x1000, 16, 16, 3, 0x1000),
.spkmode = REG_FIELD_ID(0x1000, 11, 15, 3, 0x1000),
.spkmono = REG_FIELD_ID(0x1000, 10, 10, 3, 0x1000),
.micen = REG_FIELD_ID(0x1000, 9, 9, 3, 0x1000),
.micmode = REG_FIELD_ID(0x1000, 4, 8, 3, 0x1000),
.micmono = REG_FIELD_ID(0x1000, 3, 3, 3, 0x1000),
.wssrc = REG_FIELD_ID(0x1000, 2, 2, 3, 0x1000),
.bitwidth = REG_FIELD_ID(0x1000, 0, 0, 3, 0x1000),
.rdma_dyncclk = REG_FIELD_ID(0xC000, 21, 21, 5, 0x1000),
.rdma_bursten = REG_FIELD_ID(0xC000, 20, 20, 5, 0x1000),
.rdma_wpscnt = REG_FIELD_ID(0xC000, 16, 19, 5, 0x1000),
.rdma_intf = REG_FIELD_ID(0xC000, 12, 15, 5, 0x1000),
.rdma_fifowm = REG_FIELD_ID(0xC000, 1, 5, 5, 0x1000),
.rdma_enable = REG_FIELD_ID(0xC000, 0, 0, 5, 0x1000),
.wrdma_dyncclk = REG_FIELD_ID(0x18000, 22, 22, 4, 0x1000),
.wrdma_bursten = REG_FIELD_ID(0x18000, 21, 21, 4, 0x1000),
.wrdma_wpscnt = REG_FIELD_ID(0x18000, 17, 20, 4, 0x1000),
.wrdma_intf = REG_FIELD_ID(0x18000, 12, 16, 4, 0x1000),
.wrdma_fifowm = REG_FIELD_ID(0x18000, 1, 5, 4, 0x1000),
.wrdma_enable = REG_FIELD_ID(0x18000, 0, 0, 4, 0x1000),
.clk_name = (const char*[]) {
"pcnoc-sway-clk",
"audio-core",
"pcnoc-mport-clk",
},
.num_clks = 3,
.dai_driver = sc7180_lpass_cpu_dai_driver,
.num_dai = ARRAY_SIZE(sc7180_lpass_cpu_dai_driver),
.dai_osr_clk_names = (const char *[]) {
"mclk0",
"null",
},
.dai_bit_clk_names = (const char *[]) {
"mi2s-bit-clk0",
"mi2s-bit-clk1",
},
.init = sc7180_lpass_init,
.exit = sc7180_lpass_exit,
.alloc_dma_channel = sc7180_lpass_alloc_dma_channel,
.free_dma_channel = sc7180_lpass_free_dma_channel,
};
static const struct of_device_id sc7180_lpass_cpu_device_id[] = {
{.compatible = "qcom,sc7180-lpass-cpu", .data = &sc7180_data},
{}
};
static struct platform_driver sc7180_lpass_cpu_platform_driver = {
.driver = {
.name = "sc7180-lpass-cpu",
.of_match_table = of_match_ptr(sc7180_lpass_cpu_device_id),
},
.probe = asoc_qcom_lpass_cpu_platform_probe,
.remove = asoc_qcom_lpass_cpu_platform_remove,
};
module_platform_driver(sc7180_lpass_cpu_platform_driver);
MODULE_DESCRIPTION("SC7180 LPASS CPU DRIVER");
MODULE_LICENSE("GPL v2");

View File

@ -17,6 +17,28 @@
#define LPASS_MAX_MI2S_PORTS (8)
#define LPASS_MAX_DMA_CHANNELS (8)
struct lpaif_i2sctl {
struct regmap_field *loopback;
struct regmap_field *spken;
struct regmap_field *spkmode;
struct regmap_field *spkmono;
struct regmap_field *micen;
struct regmap_field *micmode;
struct regmap_field *micmono;
struct regmap_field *wssrc;
struct regmap_field *bitwidth;
};
struct lpaif_dmactl {
struct regmap_field *bursten;
struct regmap_field *wpscnt;
struct regmap_field *intf;
struct regmap_field *fifowm;
struct regmap_field *enable;
struct regmap_field *dyncclk;
};
/* Both the CPU DAI and platform drivers will access this data */
struct lpass_data {
@ -51,10 +73,14 @@ struct lpass_data {
/* used it for handling interrupt per dma channel */
struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS];
/* 8016 specific */
struct clk *pcnoc_mport_clk;
struct clk *pcnoc_sway_clk;
/* SOC specific clock list */
struct clk_bulk_data *clks;
int num_clks;
/* Regmap fields of I2SCTL & DMACTL registers bitfields */
struct lpaif_i2sctl *i2sctl;
struct lpaif_dmactl *rd_dmactl;
struct lpaif_dmactl *wr_dmactl;
};
/* Vairant data per each SOC */
@ -72,6 +98,33 @@ struct lpass_variant {
u32 wrdma_reg_stride;
u32 wrdma_channels;
/* I2SCTL Register fields */
struct reg_field loopback;
struct reg_field spken;
struct reg_field spkmode;
struct reg_field spkmono;
struct reg_field micen;
struct reg_field micmode;
struct reg_field micmono;
struct reg_field wssrc;
struct reg_field bitwidth;
/* RD_DMA Register fields */
struct reg_field rdma_bursten;
struct reg_field rdma_wpscnt;
struct reg_field rdma_intf;
struct reg_field rdma_fifowm;
struct reg_field rdma_enable;
struct reg_field rdma_dyncclk;
/* WR_DMA Register fields */
struct reg_field wrdma_bursten;
struct reg_field wrdma_wpscnt;
struct reg_field wrdma_intf;
struct reg_field wrdma_fifowm;
struct reg_field wrdma_enable;
struct reg_field wrdma_dyncclk;
/**
* on SOCs like APQ8016 the channel control bits start
* at different offset to ipq806x
@ -89,6 +142,10 @@ struct lpass_variant {
int num_dai;
const char * const *dai_osr_clk_names;
const char * const *dai_bit_clk_names;
/* SOC specific clocks configuration */
const char **clk_name;
int num_clks;
};
/* register the platform driver from the CPU DAI driver */