[alsa-devel] [PATCH 6/6] ASoC: tegra_wm8903: assume CONFIG_OF, remove platform data
Stephen Warren
swarren at wwwdotorg.org
Sat Feb 16 01:07:35 CET 2013
From: Stephen Warren <swarren at nvidia.com>
Tegra only supports, and always enables, device tree. Remove all runtime
checks for DT support from the driver.
This allows removal of the hard-coded Harmony ASoC mapping table, since
Harmony only boots with DT now.
All board-specific configuration now comes from device tree, so there is
no need to have a platform_data structure. Rework the driver to parse the
device tree directly into struct tegra_wm8903.
Also some slight re-ordering of probe() so that the code more closely
resembles other drivers for easier comparison. Inparticular, the GPIO DT
parsing and initial programming are moved together for each GPIO.
Signed-off-by: Stephen Warren <swarren at nvidia.com>
---
include/sound/tegra_wm8903.h | 26 ------
sound/soc/tegra/tegra_wm8903.c | 179 ++++++++++++++++------------------------
2 files changed, 70 insertions(+), 135 deletions(-)
delete mode 100644 include/sound/tegra_wm8903.h
diff --git a/include/sound/tegra_wm8903.h b/include/sound/tegra_wm8903.h
deleted file mode 100644
index 57b202e..0000000
--- a/include/sound/tegra_wm8903.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright 2011 NVIDIA, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef __SOUND_TEGRA_WM38903_H
-#define __SOUND_TEGRA_WM38903_H
-
-struct tegra_wm8903_platform_data {
- int gpio_spkr_en;
- int gpio_hp_det;
- int gpio_hp_mute;
- int gpio_int_mic_en;
- int gpio_ext_mic_en;
-};
-
-#endif
diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
index bbd79bf..4ac7373 100644
--- a/sound/soc/tegra/tegra_wm8903.c
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -39,7 +39,6 @@
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <sound/tegra_wm8903.h>
#include "../codecs/wm8903.h"
@@ -48,7 +47,11 @@
#define DRV_NAME "tegra-snd-wm8903"
struct tegra_wm8903 {
- struct tegra_wm8903_platform_data pdata;
+ int gpio_spkr_en;
+ int gpio_hp_det;
+ int gpio_hp_mute;
+ int gpio_int_mic_en;
+ int gpio_ext_mic_en;
struct tegra_asoc_utils_data util_data;
};
@@ -129,12 +132,11 @@ static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
- struct tegra_wm8903_platform_data *pdata = &machine->pdata;
- if (!gpio_is_valid(pdata->gpio_spkr_en))
+ if (!gpio_is_valid(machine->gpio_spkr_en))
return 0;
- gpio_set_value_cansleep(pdata->gpio_spkr_en,
+ gpio_set_value_cansleep(machine->gpio_spkr_en,
SND_SOC_DAPM_EVENT_ON(event));
return 0;
@@ -146,12 +148,11 @@ static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
- struct tegra_wm8903_platform_data *pdata = &machine->pdata;
- if (!gpio_is_valid(pdata->gpio_hp_mute))
+ if (!gpio_is_valid(machine->gpio_hp_mute))
return 0;
- gpio_set_value_cansleep(pdata->gpio_hp_mute,
+ gpio_set_value_cansleep(machine->gpio_hp_mute,
!SND_SOC_DAPM_EVENT_ON(event));
return 0;
@@ -163,17 +164,6 @@ static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {
SND_SOC_DAPM_MIC("Mic Jack", NULL),
};
-static const struct snd_soc_dapm_route harmony_audio_map[] = {
- {"Headphone Jack", NULL, "HPOUTR"},
- {"Headphone Jack", NULL, "HPOUTL"},
- {"Int Spk", NULL, "ROP"},
- {"Int Spk", NULL, "RON"},
- {"Int Spk", NULL, "LOP"},
- {"Int Spk", NULL, "LON"},
- {"Mic Jack", NULL, "MICBIAS"},
- {"IN1L", NULL, "Mic Jack"},
-};
-
static const struct snd_kcontrol_new tegra_wm8903_controls[] = {
SOC_DAPM_PIN_SWITCH("Int Spk"),
};
@@ -185,10 +175,9 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
struct snd_soc_dapm_context *dapm = &codec->dapm;
struct snd_soc_card *card = codec->card;
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
- struct tegra_wm8903_platform_data *pdata = &machine->pdata;
- if (gpio_is_valid(pdata->gpio_hp_det)) {
- tegra_wm8903_hp_jack_gpio.gpio = pdata->gpio_hp_det;
+ if (gpio_is_valid(machine->gpio_hp_det)) {
+ tegra_wm8903_hp_jack_gpio.gpio = machine->gpio_hp_det;
snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
&tegra_wm8903_hp_jack);
snd_soc_jack_add_pins(&tegra_wm8903_hp_jack,
@@ -226,9 +215,6 @@ static int tegra_wm8903_remove(struct snd_soc_card *card)
static struct snd_soc_dai_link tegra_wm8903_dai = {
.name = "WM8903",
.stream_name = "WM8903 PCM",
- .codec_name = "wm8903.0-001a",
- .platform_name = "tegra20-i2s.0",
- .cpu_dai_name = "tegra20-i2s.0",
.codec_dai_name = "wm8903-hifi",
.init = tegra_wm8903_init,
.ops = &tegra_wm8903_ops,
@@ -257,96 +243,25 @@ static int tegra_wm8903_driver_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
struct snd_soc_card *card = &snd_soc_tegra_wm8903;
struct tegra_wm8903 *machine;
- struct tegra_wm8903_platform_data *pdata;
int ret;
- if (!pdev->dev.platform_data && !pdev->dev.of_node) {
- dev_err(&pdev->dev, "No platform data supplied\n");
- return -EINVAL;
- }
-
machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8903),
GFP_KERNEL);
if (!machine) {
dev_err(&pdev->dev, "Can't allocate tegra_wm8903 struct\n");
- ret = -ENOMEM;
- goto err;
+ return -ENOMEM;
}
- pdata = &machine->pdata;
card->dev = &pdev->dev;
platform_set_drvdata(pdev, card);
snd_soc_card_set_drvdata(card, machine);
- if (pdev->dev.platform_data) {
- memcpy(pdata, card->dev->platform_data, sizeof(*pdata));
- } else if (np) {
- pdata->gpio_spkr_en = of_get_named_gpio(np,
- "nvidia,spkr-en-gpios", 0);
- if (pdata->gpio_spkr_en == -EPROBE_DEFER)
- return -EPROBE_DEFER;
-
- pdata->gpio_hp_mute = of_get_named_gpio(np,
- "nvidia,hp-mute-gpios", 0);
- if (pdata->gpio_hp_mute == -EPROBE_DEFER)
- return -EPROBE_DEFER;
-
- pdata->gpio_hp_det = of_get_named_gpio(np,
- "nvidia,hp-det-gpios", 0);
- if (pdata->gpio_hp_det == -EPROBE_DEFER)
- return -EPROBE_DEFER;
-
- pdata->gpio_int_mic_en = of_get_named_gpio(np,
- "nvidia,int-mic-en-gpios", 0);
- if (pdata->gpio_int_mic_en == -EPROBE_DEFER)
- return -EPROBE_DEFER;
-
- pdata->gpio_ext_mic_en = of_get_named_gpio(np,
- "nvidia,ext-mic-en-gpios", 0);
- if (pdata->gpio_ext_mic_en == -EPROBE_DEFER)
- return -EPROBE_DEFER;
- }
-
- if (np) {
- ret = snd_soc_of_parse_card_name(card, "nvidia,model");
- if (ret)
- goto err;
-
- ret = snd_soc_of_parse_audio_routing(card,
- "nvidia,audio-routing");
- if (ret)
- goto err;
-
- tegra_wm8903_dai.codec_name = NULL;
- tegra_wm8903_dai.codec_of_node = of_parse_phandle(np,
- "nvidia,audio-codec", 0);
- if (!tegra_wm8903_dai.codec_of_node) {
- dev_err(&pdev->dev,
- "Property 'nvidia,audio-codec' missing or invalid\n");
- ret = -EINVAL;
- goto err;
- }
-
- tegra_wm8903_dai.cpu_dai_name = NULL;
- tegra_wm8903_dai.cpu_of_node = of_parse_phandle(np,
- "nvidia,i2s-controller", 0);
- if (!tegra_wm8903_dai.cpu_of_node) {
- dev_err(&pdev->dev,
- "Property 'nvidia,i2s-controller' missing or invalid\n");
- ret = -EINVAL;
- goto err;
- }
-
- tegra_wm8903_dai.platform_name = NULL;
- tegra_wm8903_dai.platform_of_node =
- tegra_wm8903_dai.cpu_of_node;
- } else {
- card->dapm_routes = harmony_audio_map;
- card->num_dapm_routes = ARRAY_SIZE(harmony_audio_map);
- }
-
- if (gpio_is_valid(pdata->gpio_spkr_en)) {
- ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_spkr_en,
+ machine->gpio_spkr_en = of_get_named_gpio(np, "nvidia,spkr-en-gpios",
+ 0);
+ if (machine->gpio_spkr_en == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ if (gpio_is_valid(machine->gpio_spkr_en)) {
+ ret = devm_gpio_request_one(&pdev->dev, machine->gpio_spkr_en,
GPIOF_OUT_INIT_LOW, "spkr_en");
if (ret) {
dev_err(card->dev, "cannot get spkr_en gpio\n");
@@ -354,8 +269,12 @@ static int tegra_wm8903_driver_probe(struct platform_device *pdev)
}
}
- if (gpio_is_valid(pdata->gpio_hp_mute)) {
- ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_hp_mute,
+ machine->gpio_hp_mute = of_get_named_gpio(np, "nvidia,hp-mute-gpios",
+ 0);
+ if (machine->gpio_hp_mute == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ if (gpio_is_valid(machine->gpio_hp_mute)) {
+ ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_mute,
GPIOF_OUT_INIT_HIGH, "hp_mute");
if (ret) {
dev_err(card->dev, "cannot get hp_mute gpio\n");
@@ -363,9 +282,18 @@ static int tegra_wm8903_driver_probe(struct platform_device *pdev)
}
}
- if (gpio_is_valid(pdata->gpio_int_mic_en)) {
+ machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
+ if (machine->gpio_hp_det == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ machine->gpio_int_mic_en = of_get_named_gpio(np,
+ "nvidia,int-mic-en-gpios", 0);
+ if (machine->gpio_int_mic_en == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ if (gpio_is_valid(machine->gpio_int_mic_en)) {
/* Disable int mic; enable signal is active-high */
- ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_int_mic_en,
+ ret = devm_gpio_request_one(&pdev->dev,
+ machine->gpio_int_mic_en,
GPIOF_OUT_INIT_LOW, "int_mic_en");
if (ret) {
dev_err(card->dev, "cannot get int_mic_en gpio\n");
@@ -373,9 +301,14 @@ static int tegra_wm8903_driver_probe(struct platform_device *pdev)
}
}
- if (gpio_is_valid(pdata->gpio_ext_mic_en)) {
+ machine->gpio_ext_mic_en = of_get_named_gpio(np,
+ "nvidia,ext-mic-en-gpios", 0);
+ if (machine->gpio_ext_mic_en == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ if (gpio_is_valid(machine->gpio_ext_mic_en)) {
/* Enable ext mic; enable signal is active-low */
- ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_ext_mic_en,
+ ret = devm_gpio_request_one(&pdev->dev,
+ machine->gpio_ext_mic_en,
GPIOF_OUT_INIT_LOW, "ext_mic_en");
if (ret) {
dev_err(card->dev, "cannot get ext_mic_en gpio\n");
@@ -383,6 +316,34 @@ static int tegra_wm8903_driver_probe(struct platform_device *pdev)
}
}
+ ret = snd_soc_of_parse_card_name(card, "nvidia,model");
+ if (ret)
+ goto err;
+
+ ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
+ if (ret)
+ goto err;
+
+ tegra_wm8903_dai.codec_of_node = of_parse_phandle(np,
+ "nvidia,audio-codec", 0);
+ if (!tegra_wm8903_dai.codec_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,audio-codec' missing or invalid\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ tegra_wm8903_dai.cpu_of_node = of_parse_phandle(np,
+ "nvidia,i2s-controller", 0);
+ if (!tegra_wm8903_dai.cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,i2s-controller' missing or invalid\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ tegra_wm8903_dai.platform_of_node = tegra_wm8903_dai.cpu_of_node;
+
ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
if (ret)
goto err;
--
1.7.10.4
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