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Message-ID: <20220805070449.6611-2-chunxu.li@mediatek.com>
Date: Fri, 5 Aug 2022 15:04:48 +0800
From: Chunxu Li <chunxu.li@...iatek.com>
To: <pierre-louis.bossart@...ux.intel.com>,
<peter.ujfalusi@...ux.intel.com>, <lgirdwood@...il.com>,
<broonie@...nel.org>, <angelogioacchino.delregno@...labora.com>,
<daniel.baluta@....com>
CC: <matthias.bgg@...il.com>, <yc.hung@...iatek.com>,
<tinghan.shen@...iatek.com>, <linux-kernel@...r.kernel.org>,
<alsa-devel@...a-project.org>,
<sound-open-firmware@...a-project.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>,
<project_global_chrome_upstream_group@...iatek.com>,
Chunxu Li <chunxu.li@...iatek.com>
Subject: [PATCH v2 1/2] ASoC: SOF: Introduce function sof_of_machine_select
>From current design in sof_machine_check and snd_sof_new_platform_drv,
the SOF can only support ACPI type machine.
1. In sof_machine_check if there is no ACPI machine exist, the function
will return -ENODEV directly, that's we don't expected if we do not
base on ACPI machine.
2. In snd_sof_new_platform_drv the component driver need a driver name
to do ignore_machine, currently the driver name is obtained from
machine->drv_name, and the type of machine is snd_soc_acpi_mach.
So we add a new function named sof_of_machine_select that we can pass
sof_machine_check and obtain info required by snd_sof_new_platform_drv.
Signed-off-by: Chunxu Li <chunxu.li@...iatek.com>
---
include/sound/sof.h | 2 ++
sound/soc/sof/pcm.c | 8 +++++++-
sound/soc/sof/sof-audio.c | 30 ++++++++++++++++++++++++++++++
sound/soc/sof/sof-of-dev.h | 7 +++++++
4 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/include/sound/sof.h b/include/sound/sof.h
index 367dccfea7ad..341fef19e612 100644
--- a/include/sound/sof.h
+++ b/include/sound/sof.h
@@ -89,6 +89,7 @@ struct snd_sof_pdata {
/* machine */
struct platform_device *pdev_mach;
const struct snd_soc_acpi_mach *machine;
+ const struct snd_sof_of_mach *of_machine;
void *hw_pdata;
@@ -102,6 +103,7 @@ struct snd_sof_pdata {
struct sof_dev_desc {
/* list of machines using this configuration */
struct snd_soc_acpi_mach *machines;
+ struct snd_sof_of_mach *of_machines;
/* alternate list of machines using this configuration */
struct snd_soc_acpi_mach *alt_machines;
diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index 6cb6a432be5e..49f7cb049f62 100644
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -13,6 +13,7 @@
#include <linux/pm_runtime.h>
#include <sound/pcm_params.h>
#include <sound/sof.h>
+#include "sof-of-dev.h"
#include "sof-priv.h"
#include "sof-audio.h"
#include "sof-utils.h"
@@ -655,7 +656,12 @@ void snd_sof_new_platform_drv(struct snd_sof_dev *sdev)
struct snd_sof_pdata *plat_data = sdev->pdata;
const char *drv_name;
- drv_name = plat_data->machine->drv_name;
+ if (plat_data->machine)
+ drv_name = plat_data->machine->drv_name;
+ else if (plat_data->of_machine)
+ drv_name = plat_data->of_machine->drv_name;
+ else
+ drv_name = NULL;
pd->name = "sof-audio-component";
pd->probe = sof_pcm_probe;
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
index 28976098a89e..ea9663d448eb 100644
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -10,6 +10,7 @@
#include <linux/bitfield.h>
#include "sof-audio.h"
+#include "sof-of-dev.h"
#include "ops.h"
static void sof_reset_route_setup_status(struct snd_sof_dev *sdev, struct
snd_sof_widget *widget)
@@ -784,6 +785,28 @@ int sof_dai_get_bclk(struct snd_soc_pcm_runtime *rtd)
}
EXPORT_SYMBOL(sof_dai_get_bclk);
+static struct snd_sof_of_mach *sof_of_machine_select(struct snd_sof_dev
*sdev)
+{
+ struct snd_sof_pdata *sof_pdata = sdev->pdata;
+ const struct sof_dev_desc *desc = sof_pdata->desc;
+ struct snd_sof_of_mach *mach = desc->of_machines;
+
+ if (!mach)
+ return NULL;
+
+ for (; mach->compatible; mach++) {
+ if (of_machine_is_compatible(mach->compatible)) {
+ sof_pdata->tplg_filename = mach->sof_tplg_filename;
+ if (mach->fw_filename)
+ sof_pdata->fw_filename = mach->fw_filename;
+
+ return mach;
+ }
+ }
+
+ return NULL;
+}
+
/*
* SOF Driver enumeration.
*/
@@ -794,6 +817,7 @@ int sof_machine_check(struct snd_sof_dev *sdev)
struct snd_soc_acpi_mach *mach;
if (!IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)) {
+ const struct snd_sof_of_mach *of_mach;
/* find machine */
mach = snd_sof_machine_select(sdev);
@@ -803,6 +827,12 @@ int sof_machine_check(struct snd_sof_dev *sdev)
return 0;
}
+ of_mach = sof_of_machine_select(sdev);
+ if (of_mach) {
+ sof_pdata->of_machine = of_mach;
+ return 0;
+ }
+
if (!IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC)) {
dev_err(sdev->dev, "error: no matching ASoC machine driver found -
aborting probe\n");
return -ENODEV;
diff --git a/sound/soc/sof/sof-of-dev.h b/sound/soc/sof/sof-of-dev.h
index fd950a222ba4..2948b3a0d9fe 100644
--- a/sound/soc/sof/sof-of-dev.h
+++ b/sound/soc/sof/sof-of-dev.h
@@ -9,6 +9,13 @@
#ifndef __SOUND_SOC_SOF_OF_H
#define __SOUND_SOC_SOF_OF_H
+struct snd_sof_of_mach {
+ const char *compatible;
+ const char *drv_name;
+ const char *fw_filename;
+ const char *sof_tplg_filename;
+};
+
extern const struct dev_pm_ops sof_of_pm;
int sof_of_probe(struct platform_device *pdev);
--
2.25.1
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