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Merge series "ASoC: ti: Add support for audio on J721e EVM" from Peter Ujfalusi <peter.ujfalusi@ti.com>:

Browse Source 
Hi,

Changes since v3:
- Fix the single clock source handling and typo

Changes since v2:
- DT binding:
 - use proper (?) patch subject for the binding docuemtn patch
 - drop pll4 and pll15 from DT - driver should check the rate via
   clk_get_parent. If it is not available (as it is not currently) then use the
   match_data provided rates.
 - add simple explanation for the clocking setup
 - Use descriptive names for clocks: cpb/ivi-mcasp-auxclk and cpb/ivi-codec-scki
 - dt_binding_check shows no errors/warnings
- ASoC machine driver:
 - Try to read the PLL4/15 rate with clk API (parent of the two clock divider)
   if it is not available then use the match_data provided numbers.
 - Support for single PLL setup

Changes since v1:
- Fixed DT binding documentation errors
- Rebased on ASoC head and updated the driver to compile and work

This series adds support for the analog audio setup on the j721e EVM.
The audio setup of the EVM is:
Common Processor Board (CPB): McASP10 <-> pcm3168a
Infotainment Expansion Board (IVI): McASP0 <-> 2x pcm3168a

Both CPB and IVI wired in parallel serializer setup.

The first patch adds the stream_name for McASP driver as it is needed in
multicodec (and would be needed in DPCM) setup for proper DAPM handling.

The second patch adds two DT schema, one for the cpb and one for the cpb+ivi
card.

Regards,
Peter
---
Peter Ujfalusi (3):
  ASoC: ti: davinci-mcasp: Specify stream_name for playback/capture
  ASoC: dt-bindings: Add documentation for TI j721e EVM (CPB and IVI)
  ASoC: ti: Add custom machine driver for j721e EVM (CPB and IVI)

 .../bindings/sound/ti,j721e-cpb-audio.yaml    |  95 ++
 .../sound/ti,j721e-cpb-ivi-audio.yaml         | 150 +++
 sound/soc/ti/Kconfig                          |   8 +
 sound/soc/ti/Makefile                         |   2 +
 sound/soc/ti/davinci-mcasp.c                  |   3 +
 sound/soc/ti/j721e-evm.c                      | 896 ++++++++++++++++++
 6 files changed, 1154 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/ti,j721e-cpb-audio.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/ti,j721e-cpb-ivi-audio.yaml
 create mode 100644 sound/soc/ti/j721e-evm.c

--
Peter

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
This commit is contained in:
Mark Brown 2020-07-01 17:21:09 +01:00
commit a2b782d59c
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
6 changed files with 1154 additions and 0 deletions
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95
Documentation/devicetree/bindings/sound/ti,j721e-cpb-audio.yaml Normal file
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@ -0,0 +1,95 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-audio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments J721e Common Processor Board Audio Support
maintainers:
- Peter Ujfalusi <peter.ujfalusi@ti.com>
description: |
The audio support on the board is using pcm3168a codec connected to McASP10
serializers in parallel setup.
The pcm3168a SCKI clock is sourced from j721e AUDIO_REFCLK2 pin.
In order to support 48KHz and 44.1KHz family of sampling rates the parent
clock for AUDIO_REFCLK2 needs to be changed between PLL4 (for 48KHz) and
PLL15 (for 44.1KHz). The same PLLs are used for McASP10's AUXCLK clock via
different HSDIVIDER.
Clocking setup for 48KHz family:
PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
|-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
Clocking setup for 44.1KHz family:
PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
|-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
properties:
compatible:
items:
- const: ti,j721e-cpb-audio
model:
$ref: /schemas/types.yaml#/definitions/string
description: User specified audio sound card name
ti,cpb-mcasp:
description: phandle to McASP used on CPB
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
ti,cpb-codec:
description: phandle to the pcm3168a codec used on the CPB
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
clocks:
items:
- description: AUXCLK clock for McASP used by CPB audio
- description: Parent for CPB_McASP auxclk (for 48KHz)
- description: Parent for CPB_McASP auxclk (for 44.1KHz)
- description: SCKI clock for the pcm3168a codec on CPB
- description: Parent for CPB_SCKI clock (for 48KHz)
- description: Parent for CPB_SCKI clock (for 44.1KHz)
clock-names:
items:
- const: cpb-mcasp-auxclk
- const: cpb-mcasp-auxclk-48000
- const: cpb-mcasp-auxclk-44100
- const: cpb-codec-scki
- const: cpb-codec-scki-48000
- const: cpb-codec-scki-44100
required:
- compatible
- model
- ti,cpb-mcasp
- ti,cpb-codec
- clocks
- clock-names
additionalProperties: false
examples:
- |+
sound {
compatible = "ti,j721e-cpb-audio";
model = "j721e-cpb";
status = "okay";
ti,cpb-mcasp = <&mcasp10>;
ti,cpb-codec = <&pcm3168a_1>;
clocks = <&k3_clks 184 1>,
<&k3_clks 184 2>, <&k3_clks 184 4>,
<&k3_clks 157 371>,
<&k3_clks 157 400>, <&k3_clks 157 401>;
clock-names = "cpb-mcasp-auxclk",
"cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100",
"cpb-codec-scki",
"cpb-codec-scki-48000", "cpb-codec-scki-44100";
};

150
Documentation/devicetree/bindings/sound/ti,j721e-cpb-ivi-audio.yaml Normal file
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@ -0,0 +1,150 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-ivi-audio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments J721e Common Processor Board Audio Support
maintainers:
- Peter Ujfalusi <peter.ujfalusi@ti.com>
description: |
The Infotainment board plugs into the Common Processor Board, the support of the
extension board is extending the CPB audio support, decribed in:
sound/ti,j721e-cpb-audio.txt
The audio support on the Infotainment Expansion Board consists of McASP0
connected to two pcm3168a codecs with dedicated set of serializers to each.
The SCKI for pcm3168a is sourced from j721e AUDIO_REFCLK0 pin.
In order to support 48KHz and 44.1KHz family of sampling rates the parent clock
for AUDIO_REFCLK0 needs to be changed between PLL4 (for 48KHz) and PLL15 (for
44.1KHz). The same PLLs are used for McASP0's AUXCLK clock via different
HSDIVIDER.
Note: the same PLL4 and PLL15 is used by the audio support on the CPB!
Clocking setup for 48KHz family:
PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
| |-> MCASP0_AUXCLK ---> McASP0.auxclk
|
|-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
|-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI
Clocking setup for 44.1KHz family:
PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
| |-> MCASP0_AUXCLK ---> McASP0.auxclk
|
|-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
|-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI
properties:
compatible:
items:
- const: ti,j721e-cpb-ivi-audio
model:
$ref: /schemas/types.yaml#/definitions/string
description: User specified audio sound card name
ti,cpb-mcasp:
description: phandle to McASP used on CPB
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
ti,cpb-codec:
description: phandle to the pcm3168a codec used on the CPB
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
ti,ivi-mcasp:
description: phandle to McASP used on IVI
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
ti,ivi-codec-a:
description: phandle to the pcm3168a-A codec on the expansion board
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
ti,ivi-codec-b:
description: phandle to the pcm3168a-B codec on the expansion board
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
clocks:
items:
- description: AUXCLK clock for McASP used by CPB audio
- description: Parent for CPB_McASP auxclk (for 48KHz)
- description: Parent for CPB_McASP auxclk (for 44.1KHz)
- description: SCKI clock for the pcm3168a codec on CPB
- description: Parent for CPB_SCKI clock (for 48KHz)
- description: Parent for CPB_SCKI clock (for 44.1KHz)
- description: AUXCLK clock for McASP used by IVI audio
- description: Parent for IVI_McASP auxclk (for 48KHz)
- description: Parent for IVI_McASP auxclk (for 44.1KHz)
- description: SCKI clock for the pcm3168a codec on IVI
- description: Parent for IVI_SCKI clock (for 48KHz)
- description: Parent for IVI_SCKI clock (for 44.1KHz)
clock-names:
items:
- const: cpb-mcasp-auxclk
- const: cpb-mcasp-auxclk-48000
- const: cpb-mcasp-auxclk-44100
- const: cpb-codec-scki
- const: cpb-codec-scki-48000
- const: cpb-codec-scki-44100
- const: ivi-mcasp-auxclk
- const: ivi-mcasp-auxclk-48000
- const: ivi-mcasp-auxclk-44100
- const: ivi-codec-scki
- const: ivi-codec-scki-48000
- const: ivi-codec-scki-44100
required:
- compatible
- model
- ti,cpb-mcasp
- ti,cpb-codec
- ti,ivi-mcasp
- ti,ivi-codec-a
- ti,ivi-codec-b
- clocks
- clock-names
additionalProperties: false
examples:
- |+
sound {
compatible = "ti,j721e-cpb-ivi-audio";
model = "j721e-cpb-ivi";
status = "okay";
ti,cpb-mcasp = <&mcasp10>;
ti,cpb-codec = <&pcm3168a_1>;
ti,ivi-mcasp = <&mcasp0>;
ti,ivi-codec-a = <&pcm3168a_a>;
ti,ivi-codec-b = <&pcm3168a_b>;
clocks = <&k3_clks 184 1>,
<&k3_clks 184 2>, <&k3_clks 184 4>,
<&k3_clks 157 371>,
<&k3_clks 157 400>, <&k3_clks 157 401>,
<&k3_clks 174 1>,
<&k3_clks 174 2>, <&k3_clks 174 4>,
<&k3_clks 157 301>,
<&k3_clks 157 330>, <&k3_clks 157 331>;
clock-names = "cpb-mcasp-auxclk",
"cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100",
"cpb-codec-scki",
"cpb-codec-scki-48000", "cpb-codec-scki-44100",
"ivi-mcasp-auxclk",
"ivi-mcasp-auxclk-48000", "ivi-mcasp-auxclk-44100",
"ivi-codec-scki",
"ivi-codec-scki-48000", "ivi-codec-scki-44100";
};

8
sound/soc/ti/Kconfig
View File

@ -219,5 +219,13 @@ config SND_SOC_DM365_VOICE_CODEC_MODULE
The is an internal symbol needed to ensure that the codec
and MFD driver can be built as loadable modules if necessary.
config SND_SOC_J721E_EVM
tristate "SoC Audio support for j721e EVM"
depends on ARCH_K3_J721E_SOC || COMPILE_TEST
select SND_SOC_PCM3168A_I2C
select SND_SOC_DAVINCI_MCASP
help
Say Y if you want to add support for SoC audio on j721e Common
Processor Board and Infotainment expansion board.
endmenu

2
sound/soc/ti/Makefile
View File

@ -34,6 +34,7 @@ snd-soc-omap-abe-twl6040-objs := omap-abe-twl6040.o
snd-soc-ams-delta-objs := ams-delta.o
snd-soc-omap-hdmi-objs := omap-hdmi.o
snd-soc-osk5912-objs := osk5912.o
snd-soc-j721e-evm-objs := j721e-evm.o
obj-$(CONFIG_SND_SOC_DAVINCI_EVM) += snd-soc-davinci-evm.o
obj-$(CONFIG_SND_SOC_NOKIA_N810) += snd-soc-n810.o
@ -44,3 +45,4 @@ obj-$(CONFIG_SND_SOC_OMAP_ABE_TWL6040) += snd-soc-omap-abe-twl6040.o
obj-$(CONFIG_SND_SOC_OMAP_AMS_DELTA) += snd-soc-ams-delta.o
obj-$(CONFIG_SND_SOC_OMAP_HDMI) += snd-soc-omap-hdmi.o
obj-$(CONFIG_SND_SOC_OMAP_OSK5912) += snd-soc-osk5912.o
obj-$(CONFIG_SND_SOC_J721E_EVM) += snd-soc-j721e-evm.o

3
sound/soc/ti/davinci-mcasp.c
View File

@ -1623,12 +1623,14 @@ static struct snd_soc_dai_driver davinci_mcasp_dai[] = {
.name = "davinci-mcasp.0",
.probe = davinci_mcasp_dai_probe,
.playback = {
.stream_name = "IIS Playback",
.channels_min = 1,
.channels_max = 32 * 16,
.rates = DAVINCI_MCASP_RATES,
.formats = DAVINCI_MCASP_PCM_FMTS,
},
.capture = {
.stream_name = "IIS Capture",
.channels_min = 1,
.channels_max = 32 * 16,
.rates = DAVINCI_MCASP_RATES,
@ -1642,6 +1644,7 @@ static struct snd_soc_dai_driver davinci_mcasp_dai[] = {
.name = "davinci-mcasp.1",
.probe = davinci_mcasp_dai_probe,
.playback = {
.stream_name = "DIT Playback",
.channels_min = 1,
.channels_max = 384,
.rates = DAVINCI_MCASP_RATES,

896
sound/soc/ti/j721e-evm.c Normal file
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@ -0,0 +1,896 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*/
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "davinci-mcasp.h"
/*
* Maximum number of configuration entries for prefixes:
* CPB: 2 (mcasp10 + codec)
* IVI: 3 (mcasp0 + 2x codec)
*/
#define J721E_CODEC_CONF_COUNT 5
#define J721E_AUDIO_DOMAIN_CPB 0
#define J721E_AUDIO_DOMAIN_IVI 1
#define J721E_CLK_PARENT_48000 0
#define J721E_CLK_PARENT_44100 1
#define J721E_MAX_CLK_HSDIV 128
#define PCM1368A_MAX_SYSCLK 36864000
#define J721E_DAI_FMT (SND_SOC_DAIFMT_RIGHT_J | \
SND_SOC_DAIFMT_NB_NF | \
SND_SOC_DAIFMT_CBS_CFS)
enum j721e_board_type {
J721E_BOARD_CPB = 1,
J721E_BOARD_CPB_IVI,
};
struct j721e_audio_match_data {
enum j721e_board_type board_type;
int num_links;
unsigned int pll_rates[2];
};
static unsigned int ratios_for_pcm3168a[] = {
256,
512,
768,
};
struct j721e_audio_clocks {
struct clk *target;
struct clk *parent[2];
};
struct j721e_audio_domain {
struct j721e_audio_clocks codec;
struct j721e_audio_clocks mcasp;
int parent_clk_id;
int active;
unsigned int active_link;
unsigned int rate;
};
struct j721e_priv {
struct device *dev;
struct snd_soc_card card;
struct snd_soc_dai_link *dai_links;
struct snd_soc_codec_conf codec_conf[J721E_CODEC_CONF_COUNT];
struct snd_interval rate_range;
const struct j721e_audio_match_data *match_data;
u32 pll_rates[2];
unsigned int hsdiv_rates[2];
struct j721e_audio_domain audio_domains[2];
struct mutex mutex;
};
static const struct snd_soc_dapm_widget j721e_cpb_dapm_widgets[] = {
SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL),
SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL),
SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL),
SND_SOC_DAPM_LINE("CPB Line Out", NULL),
SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL),
SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL),
SND_SOC_DAPM_LINE("CPB Line In", NULL),
};
static const struct snd_soc_dapm_route j721e_cpb_dapm_routes[] = {
{"CPB Stereo HP 1", NULL, "codec-1 AOUT1L"},
{"CPB Stereo HP 1", NULL, "codec-1 AOUT1R"},
{"CPB Stereo HP 2", NULL, "codec-1 AOUT2L"},
{"CPB Stereo HP 2", NULL, "codec-1 AOUT2R"},
{"CPB Stereo HP 3", NULL, "codec-1 AOUT3L"},
{"CPB Stereo HP 3", NULL, "codec-1 AOUT3R"},
{"CPB Line Out", NULL, "codec-1 AOUT4L"},
{"CPB Line Out", NULL, "codec-1 AOUT4R"},
{"codec-1 AIN1L", NULL, "CPB Stereo Mic 1"},
{"codec-1 AIN1R", NULL, "CPB Stereo Mic 1"},
{"codec-1 AIN2L", NULL, "CPB Stereo Mic 2"},
{"codec-1 AIN2R", NULL, "CPB Stereo Mic 2"},
{"codec-1 AIN3L", NULL, "CPB Line In"},
{"codec-1 AIN3R", NULL, "CPB Line In"},
};
static const struct snd_soc_dapm_widget j721e_ivi_codec_a_dapm_widgets[] = {
SND_SOC_DAPM_LINE("IVI A Line Out 1", NULL),
SND_SOC_DAPM_LINE("IVI A Line Out 2", NULL),
SND_SOC_DAPM_LINE("IVI A Line Out 3", NULL),
SND_SOC_DAPM_LINE("IVI A Line Out 4", NULL),
SND_SOC_DAPM_MIC("IVI A Stereo Mic 1", NULL),
SND_SOC_DAPM_MIC("IVI A Stereo Mic 2", NULL),
SND_SOC_DAPM_LINE("IVI A Line In", NULL),
};
static const struct snd_soc_dapm_route j721e_codec_a_dapm_routes[] = {
{"IVI A Line Out 1", NULL, "codec-a AOUT1L"},
{"IVI A Line Out 1", NULL, "codec-a AOUT1R"},
{"IVI A Line Out 2", NULL, "codec-a AOUT2L"},
{"IVI A Line Out 2", NULL, "codec-a AOUT2R"},
{"IVI A Line Out 3", NULL, "codec-a AOUT3L"},
{"IVI A Line Out 3", NULL, "codec-a AOUT3R"},
{"IVI A Line Out 4", NULL, "codec-a AOUT4L"},
{"IVI A Line Out 4", NULL, "codec-a AOUT4R"},
{"codec-a AIN1L", NULL, "IVI A Stereo Mic 1"},
{"codec-a AIN1R", NULL, "IVI A Stereo Mic 1"},
{"codec-a AIN2L", NULL, "IVI A Stereo Mic 2"},
{"codec-a AIN2R", NULL, "IVI A Stereo Mic 2"},
{"codec-a AIN3L", NULL, "IVI A Line In"},
{"codec-a AIN3R", NULL, "IVI A Line In"},
};
static const struct snd_soc_dapm_widget j721e_ivi_codec_b_dapm_widgets[] = {
SND_SOC_DAPM_LINE("IVI B Line Out 1", NULL),
SND_SOC_DAPM_LINE("IVI B Line Out 2", NULL),
SND_SOC_DAPM_LINE("IVI B Line Out 3", NULL),
SND_SOC_DAPM_LINE("IVI B Line Out 4", NULL),
SND_SOC_DAPM_MIC("IVI B Stereo Mic 1", NULL),
SND_SOC_DAPM_MIC("IVI B Stereo Mic 2", NULL),
SND_SOC_DAPM_LINE("IVI B Line In", NULL),
};
static const struct snd_soc_dapm_route j721e_codec_b_dapm_routes[] = {
{"IVI B Line Out 1", NULL, "codec-b AOUT1L"},
{"IVI B Line Out 1", NULL, "codec-b AOUT1R"},
{"IVI B Line Out 2", NULL, "codec-b AOUT2L"},
{"IVI B Line Out 2", NULL, "codec-b AOUT2R"},
{"IVI B Line Out 3", NULL, "codec-b AOUT3L"},
{"IVI B Line Out 3", NULL, "codec-b AOUT3R"},
{"IVI B Line Out 4", NULL, "codec-b AOUT4L"},
{"IVI B Line Out 4", NULL, "codec-b AOUT4R"},
{"codec-b AIN1L", NULL, "IVI B Stereo Mic 1"},
{"codec-b AIN1R", NULL, "IVI B Stereo Mic 1"},
{"codec-b AIN2L", NULL, "IVI B Stereo Mic 2"},
{"codec-b AIN2R", NULL, "IVI B Stereo Mic 2"},
{"codec-b AIN3L", NULL, "IVI B Line In"},
{"codec-b AIN3R", NULL, "IVI B Line In"},
};
static int j721e_configure_refclk(struct j721e_priv *priv,
unsigned int audio_domain, unsigned int rate)
{
struct j721e_audio_domain *domain = &priv->audio_domains[audio_domain];
unsigned int scki;
int ret = -EINVAL;
int i, clk_id;
if (!(rate % 8000) && priv->pll_rates[J721E_CLK_PARENT_48000])
clk_id = J721E_CLK_PARENT_48000;
else if (!(rate % 11025) && priv->pll_rates[J721E_CLK_PARENT_44100])
clk_id = J721E_CLK_PARENT_44100;
else
return ret;
for (i = 0; i < ARRAY_SIZE(ratios_for_pcm3168a); i++) {
scki = ratios_for_pcm3168a[i] * rate;
if (priv->pll_rates[clk_id] / scki <= J721E_MAX_CLK_HSDIV) {
ret = 0;
break;
}
}
if (ret) {
dev_err(priv->dev, "No valid clock configuration for %u Hz\n",
rate);
return ret;
}
if (priv->hsdiv_rates[domain->parent_clk_id] != scki) {
dev_dbg(priv->dev,
"%s configuration for %u Hz: %s, %dxFS (SCKI: %u Hz)\n",
audio_domain == J721E_AUDIO_DOMAIN_CPB ? "CPB" : "IVI",
rate,
clk_id == J721E_CLK_PARENT_48000 ? "PLL4" : "PLL15",
ratios_for_pcm3168a[i], scki);
if (domain->parent_clk_id != clk_id) {
ret = clk_set_parent(domain->codec.target,
domain->codec.parent[clk_id]);
if (ret)
return ret;
ret = clk_set_parent(domain->mcasp.target,
domain->mcasp.parent[clk_id]);
if (ret)
return ret;
domain->parent_clk_id = clk_id;
}
ret = clk_set_rate(domain->codec.target, scki);
if (ret) {
dev_err(priv->dev, "codec set rate failed for %u Hz\n",
scki);
return ret;
}
ret = clk_set_rate(domain->mcasp.target, scki);
if (!ret) {
priv->hsdiv_rates[domain->parent_clk_id] = scki;
} else {
dev_err(priv->dev, "mcasp set rate failed for %u Hz\n",
scki);
return ret;
}
}
return ret;
}
static int j721e_rule_rate(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
struct snd_interval *t = rule->private;
return snd_interval_refine(hw_param_interval(params, rule->var), t);
}
static int j721e_audio_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai;
unsigned int active_rate;
int ret = 0;
int i;
mutex_lock(&priv->mutex);
domain->active++;
if (priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].rate)
active_rate = priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].rate;
else
active_rate = priv->audio_domains[J721E_AUDIO_DOMAIN_IVI].rate;
if (active_rate)
ret = snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE,
active_rate);
else
ret = snd_pcm_hw_rule_add(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
j721e_rule_rate, &priv->rate_range,
SNDRV_PCM_HW_PARAM_RATE, -1);
mutex_unlock(&priv->mutex);
if (ret)
return ret;
/* Reset TDM slots to 32 */
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
}
return 0;
}
static int j721e_audio_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct j721e_priv *priv = snd_soc_card_get_drvdata(card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai;
unsigned int sysclk_rate;
int slot_width = 32;
int ret;
int i;
mutex_lock(&priv->mutex);
if (domain->rate && domain->rate != params_rate(params)) {
ret = -EINVAL;
goto out;
}
if (params_width(params) == 16)
slot_width = 16;
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, slot_width);
if (ret && ret != -ENOTSUPP)
goto out;
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2,
slot_width);
if (ret && ret != -ENOTSUPP)
return ret;
}
ret = j721e_configure_refclk(priv, domain_id, params_rate(params));
if (ret)
goto out;
sysclk_rate = priv->hsdiv_rates[domain->parent_clk_id];
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk_rate,
SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP) {
dev_err(priv->dev,
"codec set_sysclk failed for %u Hz\n",
sysclk_rate);
goto out;
}
}
ret = snd_soc_dai_set_sysclk(cpu_dai, MCASP_CLK_HCLK_AUXCLK,
sysclk_rate, SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP) {
dev_err(priv->dev, "mcasp set_sysclk failed for %u Hz\n",
sysclk_rate);
} else {
domain->rate = params_rate(params);
ret = 0;
}
out:
mutex_unlock(&priv->mutex);
return ret;
}
static void j721e_audio_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
mutex_lock(&priv->mutex);
domain->active--;
if (!domain->active) {
domain->rate = 0;
domain->active_link = 0;
}
mutex_unlock(&priv->mutex);
}
static const struct snd_soc_ops j721e_audio_ops = {
.startup = j721e_audio_startup,
.hw_params = j721e_audio_hw_params,
.shutdown = j721e_audio_shutdown,
};
static int j721e_audio_init(struct snd_soc_pcm_runtime *rtd)
{
struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai;
unsigned int sysclk_rate;
int i, ret;
/* Set up initial clock configuration */
ret = j721e_configure_refclk(priv, domain_id, 48000);
if (ret)
return ret;
sysclk_rate = priv->hsdiv_rates[domain->parent_clk_id];
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk_rate,
SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP)
return ret;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, MCASP_CLK_HCLK_AUXCLK,
sysclk_rate, SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP)
return ret;
/* Set initial tdm slots */
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
}
return 0;
}
static int j721e_audio_init_ivi(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
snd_soc_dapm_new_controls(dapm, j721e_ivi_codec_a_dapm_widgets,
ARRAY_SIZE(j721e_ivi_codec_a_dapm_widgets));
snd_soc_dapm_add_routes(dapm, j721e_codec_a_dapm_routes,
ARRAY_SIZE(j721e_codec_a_dapm_routes));
snd_soc_dapm_new_controls(dapm, j721e_ivi_codec_b_dapm_widgets,
ARRAY_SIZE(j721e_ivi_codec_b_dapm_widgets));
snd_soc_dapm_add_routes(dapm, j721e_codec_b_dapm_routes,
ARRAY_SIZE(j721e_codec_b_dapm_routes));
return j721e_audio_init(rtd);
}
static int j721e_get_clocks(struct device *dev,
struct j721e_audio_clocks *clocks, char *prefix)
{
struct clk *parent;
char *clk_name;
int ret;
clocks->target = devm_clk_get(dev, prefix);
if (IS_ERR(clocks->target)) {
ret = PTR_ERR(clocks->target);
if (ret != -EPROBE_DEFER)
dev_err(dev, "failed to acquire %s: %d\n",
prefix, ret);
return ret;
}
clk_name = kasprintf(GFP_KERNEL, "%s-48000", prefix);
if (clk_name) {
parent = devm_clk_get(dev, clk_name);
kfree(clk_name);
if (IS_ERR(parent)) {
ret = PTR_ERR(parent);
if (ret == -EPROBE_DEFER)
return ret;
dev_dbg(dev, "no 48KHz parent for %s: %d\n", prefix, ret);
parent = NULL;
}
clocks->parent[J721E_CLK_PARENT_48000] = parent;
} else {
return -ENOMEM;
}
clk_name = kasprintf(GFP_KERNEL, "%s-44100", prefix);
if (clk_name) {
parent = devm_clk_get(dev, clk_name);
kfree(clk_name);
if (IS_ERR(parent)) {
ret = PTR_ERR(parent);
if (ret == -EPROBE_DEFER)
return ret;
dev_dbg(dev, "no 44.1KHz parent for %s: %d\n", prefix, ret);
parent = NULL;
}
clocks->parent[J721E_CLK_PARENT_44100] = parent;
} else {
return -ENOMEM;
}
if (!clocks->parent[J721E_CLK_PARENT_44100] &&
!clocks->parent[J721E_CLK_PARENT_48000]) {
dev_err(dev, "At least one parent clock is needed for %s\n",
prefix);
return -EINVAL;
}
return 0;
}
static const struct j721e_audio_match_data j721e_cpb_data = {
.board_type = J721E_BOARD_CPB,
.num_links = 2, /* CPB pcm3168a */
.pll_rates = {
[J721E_CLK_PARENT_44100] = 1083801600, /* PLL15 */
[J721E_CLK_PARENT_48000] = 1179648000, /* PLL4 */
},
};
static const struct j721e_audio_match_data j721e_cpb_ivi_data = {
.board_type = J721E_BOARD_CPB_IVI,
.num_links = 4, /* CPB pcm3168a + 2x pcm3168a on IVI */
.pll_rates = {
[J721E_CLK_PARENT_44100] = 1083801600, /* PLL15 */
[J721E_CLK_PARENT_48000] = 1179648000, /* PLL4 */
},
};
static const struct of_device_id j721e_audio_of_match[] = {
{
.compatible = "ti,j721e-cpb-audio",
.data = &j721e_cpb_data,
}, {
.compatible = "ti,j721e-cpb-ivi-audio",
.data = &j721e_cpb_ivi_data,
},
{ },
};
MODULE_DEVICE_TABLE(of, j721e_audio_of_match);
static int j721e_calculate_rate_range(struct j721e_priv *priv)
{
const struct j721e_audio_match_data *match_data = priv->match_data;
struct j721e_audio_clocks *domain_clocks;
unsigned int min_rate, max_rate, pll_rate;
struct clk *pll;
domain_clocks = &priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].mcasp;
pll = clk_get_parent(domain_clocks->parent[J721E_CLK_PARENT_44100]);
if (IS_ERR_OR_NULL(pll)) {
priv->pll_rates[J721E_CLK_PARENT_44100] =
match_data->pll_rates[J721E_CLK_PARENT_44100];
} else {
priv->pll_rates[J721E_CLK_PARENT_44100] = clk_get_rate(pll);
clk_put(pll);
}
pll = clk_get_parent(domain_clocks->parent[J721E_CLK_PARENT_48000]);
if (IS_ERR_OR_NULL(pll)) {
priv->pll_rates[J721E_CLK_PARENT_48000] =
match_data->pll_rates[J721E_CLK_PARENT_48000];
} else {
priv->pll_rates[J721E_CLK_PARENT_48000] = clk_get_rate(pll);
clk_put(pll);
}
if (!priv->pll_rates[J721E_CLK_PARENT_44100] &&
!priv->pll_rates[J721E_CLK_PARENT_48000]) {
dev_err(priv->dev, "At least one PLL is needed\n");
return -EINVAL;
}
if (priv->pll_rates[J721E_CLK_PARENT_44100])
pll_rate = priv->pll_rates[J721E_CLK_PARENT_44100];
else
pll_rate = priv->pll_rates[J721E_CLK_PARENT_48000];
min_rate = pll_rate / J721E_MAX_CLK_HSDIV;
min_rate /= ratios_for_pcm3168a[ARRAY_SIZE(ratios_for_pcm3168a) - 1];
if (priv->pll_rates[J721E_CLK_PARENT_48000])
pll_rate = priv->pll_rates[J721E_CLK_PARENT_48000];
else
pll_rate = priv->pll_rates[J721E_CLK_PARENT_44100];
if (pll_rate > PCM1368A_MAX_SYSCLK)
pll_rate = PCM1368A_MAX_SYSCLK;
max_rate = pll_rate / ratios_for_pcm3168a[0];
snd_interval_any(&priv->rate_range);
priv->rate_range.min = min_rate;
priv->rate_range.max = max_rate;
return 0;
}
static int j721e_soc_probe_cpb(struct j721e_priv *priv, int *link_idx,
int *conf_idx)
{
struct device_node *node = priv->dev->of_node;
struct snd_soc_dai_link_component *compnent;
struct device_node *dai_node, *codec_node;
struct j721e_audio_domain *domain;
int comp_count, comp_idx;
int ret;
dai_node = of_parse_phandle(node, "ti,cpb-mcasp", 0);
if (!dai_node) {
dev_err(priv->dev, "CPB McASP node is not provided\n");
return -EINVAL;
}
codec_node = of_parse_phandle(node, "ti,cpb-codec", 0);
if (!codec_node) {
dev_err(priv->dev, "CPB codec node is not provided\n");
return -EINVAL;
}
domain = &priv->audio_domains[J721E_AUDIO_DOMAIN_CPB];
ret = j721e_get_clocks(priv->dev, &domain->codec, "cpb-codec-scki");
if (ret)
return ret;
ret = j721e_get_clocks(priv->dev, &domain->mcasp, "cpb-mcasp-auxclk");
if (ret)
return ret;
/*
* Common Processor Board, two links
* Link 1: McASP10 -> pcm3168a_1 DAC
* Link 2: McASP10 <- pcm3168a_1 ADC
*/
comp_count = 6;
compnent = devm_kzalloc(priv->dev, comp_count * sizeof(*compnent),
GFP_KERNEL);
if (!compnent)
return -ENOMEM;
comp_idx = 0;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_codecs = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].name = "CPB PCM3168A Playback";
priv->dai_links[*link_idx].stream_name = "CPB PCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs->of_node = codec_node;
priv->dai_links[*link_idx].codecs->dai_name = "pcm3168a-dac";
priv->dai_links[*link_idx].playback_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_CPB;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_codecs = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].name = "CPB PCM3168A Capture";
priv->dai_links[*link_idx].stream_name = "CPB PCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs->of_node = codec_node;
priv->dai_links[*link_idx].codecs->dai_name = "pcm3168a-adc";
priv->dai_links[*link_idx].capture_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_CPB;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = codec_node;
priv->codec_conf[*conf_idx].name_prefix = "codec-1";
(*conf_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = dai_node;
priv->codec_conf[*conf_idx].name_prefix = "McASP10";
(*conf_idx)++;
return 0;
}
static int j721e_soc_probe_ivi(struct j721e_priv *priv, int *link_idx,
int *conf_idx)
{
struct device_node *node = priv->dev->of_node;
struct snd_soc_dai_link_component *compnent;
struct device_node *dai_node, *codeca_node, *codecb_node;
struct j721e_audio_domain *domain;
int comp_count, comp_idx;
int ret;
if (priv->match_data->board_type != J721E_BOARD_CPB_IVI)
return 0;
dai_node = of_parse_phandle(node, "ti,ivi-mcasp", 0);
if (!dai_node) {
dev_err(priv->dev, "IVI McASP node is not provided\n");
return -EINVAL;
}
codeca_node = of_parse_phandle(node, "ti,ivi-codec-a", 0);
if (!codeca_node) {
dev_err(priv->dev, "IVI codec-a node is not provided\n");
return -EINVAL;
}
codecb_node = of_parse_phandle(node, "ti,ivi-codec-b", 0);
if (!codecb_node) {
dev_warn(priv->dev, "IVI codec-b node is not provided\n");
return 0;
}
domain = &priv->audio_domains[J721E_AUDIO_DOMAIN_IVI];
ret = j721e_get_clocks(priv->dev, &domain->codec, "ivi-codec-scki");
if (ret)
return ret;
ret = j721e_get_clocks(priv->dev, &domain->mcasp, "ivi-mcasp-auxclk");
if (ret)
return ret;
/*
* IVI extension, two links
* Link 1: McASP0 -> pcm3168a_a DAC
* \> pcm3168a_b DAC
* Link 2: McASP0 <- pcm3168a_a ADC
* \ pcm3168a_b ADC
*/
comp_count = 8;
compnent = devm_kzalloc(priv->dev, comp_count * sizeof(*compnent),
GFP_KERNEL);
if (!compnent)
return -ENOMEM;
comp_idx = 0;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx];
priv->dai_links[*link_idx].num_codecs = 2;
comp_idx += 2;
priv->dai_links[*link_idx].name = "IVI 2xPCM3168A Playback";
priv->dai_links[*link_idx].stream_name = "IVI 2xPCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs[0].of_node = codeca_node;
priv->dai_links[*link_idx].codecs[0].dai_name = "pcm3168a-dac";
priv->dai_links[*link_idx].codecs[1].of_node = codecb_node;
priv->dai_links[*link_idx].codecs[1].dai_name = "pcm3168a-dac";
priv->dai_links[*link_idx].playback_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_IVI;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init_ivi;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx];
priv->dai_links[*link_idx].num_codecs = 2;
priv->dai_links[*link_idx].name = "IVI 2xPCM3168A Capture";
priv->dai_links[*link_idx].stream_name = "IVI 2xPCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs[0].of_node = codeca_node;
priv->dai_links[*link_idx].codecs[0].dai_name = "pcm3168a-adc";
priv->dai_links[*link_idx].codecs[1].of_node = codecb_node;
priv->dai_links[*link_idx].codecs[1].dai_name = "pcm3168a-adc";
priv->dai_links[*link_idx].capture_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_IVI;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = codeca_node;
priv->codec_conf[*conf_idx].name_prefix = "codec-a";
(*conf_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = codecb_node;
priv->codec_conf[*conf_idx].name_prefix = "codec-b";
(*conf_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = dai_node;
priv->codec_conf[*conf_idx].name_prefix = "McASP0";
(*conf_idx)++;
return 0;
}
static int j721e_soc_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
struct snd_soc_card *card;
const struct of_device_id *match;
struct j721e_priv *priv;
int link_cnt, conf_cnt, ret;
if (!node) {
dev_err(&pdev->dev, "of node is missing.\n");
return -ENODEV;
}
match = of_match_node(j721e_audio_of_match, node);
if (!match) {
dev_err(&pdev->dev, "No compatible match found\n");
return -ENODEV;
}
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->match_data = match->data;
priv->dai_links = devm_kcalloc(&pdev->dev, priv->match_data->num_links,
sizeof(*priv->dai_links), GFP_KERNEL);
if (!priv->dai_links)
return -ENOMEM;
priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].parent_clk_id = -1;
priv->audio_domains[J721E_AUDIO_DOMAIN_IVI].parent_clk_id = -1;
priv->dev = &pdev->dev;
card = &priv->card;
card->dev = &pdev->dev;
card->owner = THIS_MODULE;
card->dapm_widgets = j721e_cpb_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(j721e_cpb_dapm_widgets);
card->dapm_routes = j721e_cpb_dapm_routes;
card->num_dapm_routes = ARRAY_SIZE(j721e_cpb_dapm_routes);
card->fully_routed = 1;
if (snd_soc_of_parse_card_name(card, "model")) {
dev_err(&pdev->dev, "Card name is not provided\n");
return -ENODEV;
}
link_cnt = 0;
conf_cnt = 0;
ret = j721e_soc_probe_cpb(priv, &link_cnt, &conf_cnt);
if (ret)
return ret;
ret = j721e_soc_probe_ivi(priv, &link_cnt, &conf_cnt);
if (ret)
return ret;
card->dai_link = priv->dai_links;
card->num_links = link_cnt;
card->codec_conf = priv->codec_conf;
card->num_configs = conf_cnt;
ret = j721e_calculate_rate_range(priv);
if (ret)
return ret;
snd_soc_card_set_drvdata(card, priv);
mutex_init(&priv->mutex);
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret)
dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
static struct platform_driver j721e_soc_driver = {
.driver = {
.name = "j721e-audio",
.pm = &snd_soc_pm_ops,
.of_match_table = of_match_ptr(j721e_audio_of_match),
},
.probe = j721e_soc_probe,
};
module_platform_driver(j721e_soc_driver);
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_DESCRIPTION("ASoC machine driver for j721e Common Processor Board");
MODULE_LICENSE("GPL v2");