* [PATCH 2/7] ASoC: allow wolfson wm9712 codec to be instantiated using device tree
[not found] ` <1355959056-6009-1-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
@ 2012-12-19 23:17 ` Lucas Stach
[not found] ` <1355959056-6009-2-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-19 23:17 ` [PATCH 3/7] ASoC: tegra: setup DAP3<->DAC3 connection by default Lucas Stach
` (5 subsequent siblings)
6 siblings, 1 reply; 21+ messages in thread
From: Lucas Stach @ 2012-12-19 23:17 UTC (permalink / raw)
To: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Cc: patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E,
Liam Girdwood, Mark Brown, Stephen Warren,
linux-tegra-u79uwXL29TY76Z2rM5mHXA
Signed-off-by: Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
---
sound/soc/codecs/wm9712.c | 7 +++++++
1 Datei geändert, 7 Zeilen hinzugefügt(+)
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 8e9a6a3..4050e6a 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -697,10 +697,17 @@ static int wm9712_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id wm9712_of_match[] = {
+ { .compatible = "wlf,wm9712", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, wm9712_of_match);
+
static struct platform_driver wm9712_codec_driver = {
.driver = {
.name = "wm9712-codec",
.owner = THIS_MODULE,
+ .of_match_table = wm9712_of_match,
},
.probe = wm9712_probe,
--
1.7.11.7
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 3/7] ASoC: tegra: setup DAP3<->DAC3 connection by default
[not found] ` <1355959056-6009-1-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-19 23:17 ` [PATCH 2/7] ASoC: allow wolfson wm9712 codec to be instantiated using device tree Lucas Stach
@ 2012-12-19 23:17 ` Lucas Stach
[not found] ` <1355959056-6009-3-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-19 23:17 ` [PATCH 4/7] ASoC: tegra: add function to set ac97 rate Lucas Stach
` (4 subsequent siblings)
6 siblings, 1 reply; 21+ messages in thread
From: Lucas Stach @ 2012-12-19 23:17 UTC (permalink / raw)
To: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Cc: patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E,
Liam Girdwood, Mark Brown, Stephen Warren,
linux-tegra-u79uwXL29TY76Z2rM5mHXA
This connection is used by the AC97 controller.
Signed-off-by: Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
---
sound/soc/tegra/tegra20_das.c | 13 +++++++++++++
1 Datei geändert, 13 Zeilen hinzugefügt(+)
diff --git a/sound/soc/tegra/tegra20_das.c b/sound/soc/tegra/tegra20_das.c
index 6543184..e723929 100644
--- a/sound/soc/tegra/tegra20_das.c
+++ b/sound/soc/tegra/tegra20_das.c
@@ -191,6 +191,19 @@ static int tegra20_das_probe(struct platform_device *pdev)
goto err;
}
+ ret = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_3,
+ TEGRA20_DAS_DAP_SEL_DAC3);
+ if (ret) {
+ dev_err(&pdev->dev, "Can't set up DAS DAP connection\n");
+ goto err;
+ }
+ ret = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAC_ID_3,
+ TEGRA20_DAS_DAC_SEL_DAP3);
+ if (ret) {
+ dev_err(&pdev->dev, "Can't set up DAS DAC connection\n");
+ goto err;
+ }
+
platform_set_drvdata(pdev, das);
return 0;
--
1.7.11.7
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 4/7] ASoC: tegra: add function to set ac97 rate
[not found] ` <1355959056-6009-1-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-19 23:17 ` [PATCH 2/7] ASoC: allow wolfson wm9712 codec to be instantiated using device tree Lucas Stach
2012-12-19 23:17 ` [PATCH 3/7] ASoC: tegra: setup DAP3<->DAC3 connection by default Lucas Stach
@ 2012-12-19 23:17 ` Lucas Stach
[not found] ` <1355959056-6009-4-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-19 23:17 ` [PATCH 5/7] ASoC: tegra: add ac97 host driver Lucas Stach
` (3 subsequent siblings)
6 siblings, 1 reply; 21+ messages in thread
From: Lucas Stach @ 2012-12-19 23:17 UTC (permalink / raw)
To: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Cc: patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E,
Liam Girdwood, Mark Brown, Stephen Warren,
linux-tegra-u79uwXL29TY76Z2rM5mHXA
AC97 uses a fixed rate, unrelated to the sample rate. Add a function to
make the setup more trivial.
Signed-off-by: Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
---
sound/soc/tegra/tegra_asoc_utils.c | 53 ++++++++++++++++++++++++++++++++++++++
sound/soc/tegra/tegra_asoc_utils.h | 1 +
2 Dateien geändert, 54 Zeilen hinzugefügt(+)
diff --git a/sound/soc/tegra/tegra_asoc_utils.c b/sound/soc/tegra/tegra_asoc_utils.c
index 6872c77..ba419f8 100644
--- a/sound/soc/tegra/tegra_asoc_utils.c
+++ b/sound/soc/tegra/tegra_asoc_utils.c
@@ -112,6 +112,59 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
}
EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_rate);
+int tegra_asoc_utils_set_ac97_rate(struct tegra_asoc_utils_data *data)
+{
+ const int pll_rate = 73728000;
+ const int ac97_rate = 24576000;
+ int err;
+
+ clk_disable_unprepare(data->clk_cdev1);
+ clk_disable_unprepare(data->clk_pll_a_out0);
+ clk_disable_unprepare(data->clk_pll_a);
+
+ /*
+ * AC97 rate is fixed at 24.576MHz and is used for both the host
+ * controller and the external codec
+ */
+ err = clk_set_rate(data->clk_pll_a, pll_rate);
+ if (err) {
+ dev_err(data->dev, "Can't set pll_a rate: %d\n", err);
+ return err;
+ }
+
+ err = clk_set_rate(data->clk_pll_a_out0, ac97_rate);
+ if (err) {
+ dev_err(data->dev, "Can't set pll_a_out0 rate: %d\n", err);
+ return err;
+ }
+
+ /* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */
+
+ err = clk_prepare_enable(data->clk_pll_a);
+ if (err) {
+ dev_err(data->dev, "Can't enable pll_a: %d\n", err);
+ return err;
+ }
+
+ err = clk_prepare_enable(data->clk_pll_a_out0);
+ if (err) {
+ dev_err(data->dev, "Can't enable pll_a_out0: %d\n", err);
+ return err;
+ }
+
+ err = clk_prepare_enable(data->clk_cdev1);
+ if (err) {
+ dev_err(data->dev, "Can't enable cdev1: %d\n", err);
+ return err;
+ }
+
+ data->set_baseclock = pll_rate;
+ data->set_mclk = ac97_rate;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_ac97_rate);
+
int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
struct device *dev)
{
diff --git a/sound/soc/tegra/tegra_asoc_utils.h b/sound/soc/tegra/tegra_asoc_utils.h
index 44db1db..974c9f8 100644
--- a/sound/soc/tegra/tegra_asoc_utils.h
+++ b/sound/soc/tegra/tegra_asoc_utils.h
@@ -43,6 +43,7 @@ struct tegra_asoc_utils_data {
int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
int mclk);
+int tegra_asoc_utils_set_ac97_rate(struct tegra_asoc_utils_data *data);
int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
struct device *dev);
void tegra_asoc_utils_fini(struct tegra_asoc_utils_data *data);
--
1.7.11.7
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 5/7] ASoC: tegra: add ac97 host driver
[not found] ` <1355959056-6009-1-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
` (2 preceding siblings ...)
2012-12-19 23:17 ` [PATCH 4/7] ASoC: tegra: add function to set ac97 rate Lucas Stach
@ 2012-12-19 23:17 ` Lucas Stach
[not found] ` <1355959056-6009-5-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-19 23:17 ` [PATCH 6/7] ASoC: tegra: add ac97 host controller to device tree Lucas Stach
` (2 subsequent siblings)
6 siblings, 1 reply; 21+ messages in thread
From: Lucas Stach @ 2012-12-19 23:17 UTC (permalink / raw)
To: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Cc: patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E,
Liam Girdwood, Mark Brown, Stephen Warren,
linux-tegra-u79uwXL29TY76Z2rM5mHXA, Marcel Ziswiler
This adds the driver for the Tegra 2x AC97 host controller.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler-2KBjVHiyJgBBDgjK7y7TUQ@public.gmane.org>
Signed-off-by: Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
---
sound/soc/tegra/Kconfig | 8 +
sound/soc/tegra/Makefile | 2 +
sound/soc/tegra/tegra20_ac97.c | 479 +++++++++++++++++++++++++++++++++++++++++
sound/soc/tegra/tegra20_ac97.h | 95 ++++++++
4 Dateien geändert, 584 Zeilen hinzugefügt(+)
create mode 100644 sound/soc/tegra/tegra20_ac97.c
create mode 100644 sound/soc/tegra/tegra20_ac97.h
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index 19e5fe7..763c68d 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -6,6 +6,14 @@ config SND_SOC_TEGRA
help
Say Y or M here if you want support for SoC audio on Tegra.
+config SND_SOC_TEGRA20_AC97
+ tristate
+ depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC
+ help
+ Say Y or M if you want to add support for codecs attached to the
+ Tegra20 AC97 interface. You will also need to select the individual
+ machine drivers to support below.
+
config SND_SOC_TEGRA20_DAS
tristate
depends on SND_SOC_TEGRA && ARCH_TEGRA_2x_SOC
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index 391e78a..02513d9 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -1,6 +1,7 @@
# Tegra platform Support
snd-soc-tegra-pcm-objs := tegra_pcm.o
snd-soc-tegra-utils-objs += tegra_asoc_utils.o
+snd-soc-tegra20-ac97-objs := tegra20_ac97.o
snd-soc-tegra20-das-objs := tegra20_das.o
snd-soc-tegra20-i2s-objs := tegra20_i2s.o
snd-soc-tegra20-spdif-objs := tegra20_spdif.o
@@ -9,6 +10,7 @@ snd-soc-tegra30-i2s-objs := tegra30_i2s.o
obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-pcm.o
obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-utils.o
+obj-$(CONFIG_SND_SOC_TEGRA20_AC97) += snd-soc-tegra20-ac97.o
obj-$(CONFIG_SND_SOC_TEGRA20_DAS) += snd-soc-tegra20-das.o
obj-$(CONFIG_SND_SOC_TEGRA20_I2S) += snd-soc-tegra20-i2s.o
obj-$(CONFIG_SND_SOC_TEGRA20_SPDIF) += snd-soc-tegra20-spdif.o
diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c
new file mode 100644
index 0000000..a2f71cf
--- /dev/null
+++ b/sound/soc/tegra/tegra20_ac97.c
@@ -0,0 +1,479 @@
+/*
+ * tegra20_ac97.c - Tegra20 AC97 platform driver
+ *
+ * Copyright (c) 2012 Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
+ *
+ * Partly based on code copyright/by:
+ *
+ * Copyright (c) 2011,2012 Toradex Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "tegra_asoc_utils.h"
+#include "tegra20_ac97.h"
+
+#define DRV_NAME "tegra20-ac97"
+
+static struct tegra20_ac97 *workdata;
+
+static void tegra20_ac97_codec_reset(struct snd_ac97 *ac97)
+{
+ u32 readback;
+ unsigned long timeout;
+
+ /* reset line is not driven by DAC pad group, have to toggle GPIO */
+ gpio_set_value(workdata->reset_gpio, 0);
+ udelay(2);
+
+ gpio_set_value(workdata->reset_gpio, 1);
+ udelay(2);
+
+ timeout = jiffies + msecs_to_jiffies(100);
+
+ do {
+ regmap_read(workdata->regmap, TEGRA20_AC97_STATUS1, &readback);
+ if (readback & TEGRA20_AC97_STATUS1_CODEC1_RDY)
+ break;
+ usleep_range(1000, 2000);
+ } while (!time_after(jiffies, timeout));
+}
+
+static void tegra20_ac97_codec_warm_reset(struct snd_ac97 *ac97)
+{
+ u32 readback;
+ unsigned long timeout;
+
+ /*
+ * although sync line is driven by the DAC pad group warm reset using
+ * the controller cmd is not working, have to toggle sync line
+ * manually.
+ */
+ gpio_request(workdata->sync_gpio, "codec-sync");
+
+ gpio_direction_output(workdata->sync_gpio, 1);
+
+ udelay(2);
+ gpio_set_value(workdata->sync_gpio, 0);
+ udelay(2);
+ gpio_free(workdata->sync_gpio);
+
+ timeout = jiffies + msecs_to_jiffies(100);
+
+ do {
+ regmap_read(workdata->regmap, TEGRA20_AC97_STATUS1, &readback);
+ if (readback & TEGRA20_AC97_STATUS1_CODEC1_RDY)
+ break;
+ usleep_range(1000, 2000);
+ } while (!time_after(jiffies, timeout));
+}
+
+static unsigned short tegra20_ac97_codec_read(struct snd_ac97 *ac97_snd,
+ unsigned short reg)
+{
+ u32 readback;
+ unsigned long timeout;
+
+ regmap_write(workdata->regmap, TEGRA20_AC97_CMD,
+ (((reg | 0x80) << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT) &
+ TEGRA20_AC97_CMD_CMD_ADDR_MASK) |
+ TEGRA20_AC97_CMD_BUSY);
+
+ timeout = jiffies + msecs_to_jiffies(100);
+
+ do {
+ regmap_read(workdata->regmap, TEGRA20_AC97_STATUS1, &readback);
+ if (readback & TEGRA20_AC97_STATUS1_STA_VALID1)
+ break;
+ usleep_range(1000, 2000);
+ } while (!time_after(jiffies, timeout));
+
+ return ((readback & TEGRA20_AC97_STATUS1_STA_DATA1_MASK) >>
+ TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT);
+}
+
+static void tegra20_ac97_codec_write(struct snd_ac97 *ac97_snd,
+ unsigned short reg, unsigned short val)
+{
+ u32 readback;
+ unsigned long timeout;
+
+ regmap_write(workdata->regmap, TEGRA20_AC97_CMD,
+ ((reg << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT) &
+ TEGRA20_AC97_CMD_CMD_ADDR_MASK) |
+ ((val << TEGRA20_AC97_CMD_CMD_DATA_SHIFT) &
+ TEGRA20_AC97_CMD_CMD_DATA_MASK) |
+ TEGRA20_AC97_CMD_BUSY);
+
+ timeout = jiffies + msecs_to_jiffies(100);
+
+ do {
+ regmap_read(workdata->regmap, TEGRA20_AC97_CMD, &readback);
+ if (!(readback & TEGRA20_AC97_CMD_BUSY))
+ break;
+ usleep_range(1000, 2000);
+ } while (!time_after(jiffies, timeout));
+}
+
+struct snd_ac97_bus_ops soc_ac97_ops = {
+ .read = tegra20_ac97_codec_read,
+ .write = tegra20_ac97_codec_write,
+ .reset = tegra20_ac97_codec_reset,
+ .warm_reset = tegra20_ac97_codec_warm_reset,
+};
+EXPORT_SYMBOL_GPL(soc_ac97_ops);
+
+static inline void tegra20_ac97_start_playback(struct tegra20_ac97 *ac97)
+{
+ regmap_update_bits(ac97->regmap, TEGRA20_AC97_FIFO1_SCR,
+ TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN,
+ TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN);
+
+ regmap_update_bits(ac97->regmap, TEGRA20_AC97_CTRL,
+ TEGRA20_AC97_CTRL_PCM_DAC_EN | TEGRA20_AC97_CTRL_STM_EN,
+ TEGRA20_AC97_CTRL_PCM_DAC_EN | TEGRA20_AC97_CTRL_STM_EN);
+}
+
+static inline void tegra20_ac97_stop_playback(struct tegra20_ac97 *ac97)
+{
+ regmap_update_bits(ac97->regmap, TEGRA20_AC97_FIFO1_SCR,
+ TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN, 0);
+
+ regmap_update_bits(ac97->regmap, TEGRA20_AC97_CTRL,
+ TEGRA20_AC97_CTRL_PCM_DAC_EN, 0);
+}
+
+static inline void tegra20_ac97_start_capture(struct tegra20_ac97 *ac97)
+{
+ regmap_update_bits(ac97->regmap, TEGRA20_AC97_FIFO1_SCR,
+ TEGRA20_AC97_FIFO_SCR_REC_FULL_EN,
+ TEGRA20_AC97_FIFO_SCR_REC_FULL_EN);
+}
+
+static inline void tegra20_ac97_stop_capture(struct tegra20_ac97 *ac97)
+{
+ regmap_update_bits(ac97->regmap, TEGRA20_AC97_FIFO1_SCR,
+ TEGRA20_AC97_FIFO_SCR_REC_FULL_EN, 0);
+}
+
+static int tegra20_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct tegra20_ac97 *ac97 = snd_soc_dai_get_drvdata(dai);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ tegra20_ac97_start_playback(ac97);
+ else
+ tegra20_ac97_start_capture(ac97);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ tegra20_ac97_stop_playback(ac97);
+ else
+ tegra20_ac97_stop_capture(ac97);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops tegra20_ac97_dai_ops = {
+ .trigger = tegra20_ac97_trigger,
+};
+
+static int tegra20_ac97_probe(struct snd_soc_dai *dai)
+{
+ struct tegra20_ac97 *ac97 = snd_soc_dai_get_drvdata(dai);
+
+ dai->capture_dma_data = &ac97->capture_dma_data;
+ dai->playback_dma_data = &ac97->playback_dma_data;
+
+ return 0;
+}
+
+static struct snd_soc_dai_driver tegra20_ac97_dai = {
+ .name = "tegra-ac97-pcm",
+ .ac97_control = 1,
+ .probe = tegra20_ac97_probe,
+ .playback = {
+ .stream_name = "PCM Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "PCM Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &tegra20_ac97_dai_ops,
+};
+
+static bool tegra20_ac97_wr_rd_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TEGRA20_AC97_CTRL:
+ case TEGRA20_AC97_CMD:
+ case TEGRA20_AC97_STATUS1:
+ case TEGRA20_AC97_FIFO1_SCR:
+ case TEGRA20_AC97_FIFO_TX1:
+ case TEGRA20_AC97_FIFO_RX1:
+ return true;
+ default:
+ break;
+ }
+
+ return false;
+}
+
+static bool tegra20_ac97_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TEGRA20_AC97_CMD:
+ case TEGRA20_AC97_STATUS1:
+ case TEGRA20_AC97_FIFO1_SCR:
+ case TEGRA20_AC97_FIFO_TX1:
+ case TEGRA20_AC97_FIFO_RX1:
+ return true;
+ default:
+ break;
+ }
+
+ return false;
+}
+
+static bool tegra20_ac97_precious_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TEGRA20_AC97_FIFO_TX1:
+ case TEGRA20_AC97_FIFO_RX1:
+ return true;
+ default:
+ break;
+ }
+
+ return false;
+}
+
+static const struct regmap_config tegra20_ac97_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = TEGRA20_AC97_FIFO_RX1,
+ .writeable_reg = tegra20_ac97_wr_rd_reg,
+ .readable_reg = tegra20_ac97_wr_rd_reg,
+ .volatile_reg = tegra20_ac97_volatile_reg,
+ .precious_reg = tegra20_ac97_precious_reg,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int tegra20_ac97_platform_probe(struct platform_device *pdev)
+{
+ struct tegra20_ac97 *ac97;
+ struct resource *mem, *memregion;
+ u32 of_dma[2];
+ void __iomem *regs;
+ int ret = 0;
+
+ ac97 = devm_kzalloc(&pdev->dev, sizeof(struct tegra20_ac97),
+ GFP_KERNEL);
+ if (!ac97) {
+ dev_err(&pdev->dev, "Can't allocate tegra20_ac97\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+ dev_set_drvdata(&pdev->dev, ac97);
+
+ ac97->clk_ac97 = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(ac97->clk_ac97)) {
+ dev_err(&pdev->dev, "Can't retrieve ac97 clock\n");
+ ret = PTR_ERR(ac97->clk_ac97);
+ goto err;
+ }
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ dev_err(&pdev->dev, "No memory resource\n");
+ ret = -ENODEV;
+ goto err_clk_put;
+ }
+
+ memregion = devm_request_mem_region(&pdev->dev, mem->start,
+ resource_size(mem), DRV_NAME);
+ if (!memregion) {
+ dev_err(&pdev->dev, "Memory region already claimed\n");
+ ret = -EBUSY;
+ goto err_clk_put;
+ }
+
+ regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
+ if (!regs) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ ret = -ENOMEM;
+ goto err_clk_put;
+ }
+
+ ac97->regmap = devm_regmap_init_mmio(&pdev->dev, regs,
+ &tegra20_ac97_regmap_config);
+ if (IS_ERR(ac97->regmap)) {
+ dev_err(&pdev->dev, "regmap init failed\n");
+ ret = PTR_ERR(ac97->regmap);
+ goto err_clk_put;
+ }
+
+ if (of_property_read_u32_array(pdev->dev.of_node,
+ "nvidia,dma-request-selector",
+ of_dma, 2) < 0) {
+ dev_err(&pdev->dev, "No DMA resource\n");
+ ret = -ENODEV;
+ goto err_clk_put;
+ }
+
+ ac97->reset_gpio = of_get_named_gpio(pdev->dev.of_node,
+ "nvidia,codec-reset-gpio", 0);
+ if (gpio_is_valid(ac97->reset_gpio)) {
+ ret = devm_gpio_request_one(&pdev->dev, ac97->reset_gpio,
+ GPIOF_OUT_INIT_HIGH, "codec-reset");
+ if (ret) {
+ dev_err(&pdev->dev, "could not get codec-reset GPIO\n");
+ goto err_clk_put;
+ }
+ } else {
+ dev_err(&pdev->dev, "no codec-reset GPIO supplied\n");
+ goto err_clk_put;
+ }
+
+ ac97->sync_gpio = of_get_named_gpio(pdev->dev.of_node,
+ "nvidia,codec-sync-gpio", 0);
+ if (!gpio_is_valid(ac97->sync_gpio)) {
+ dev_err(&pdev->dev, "no codec-sync GPIO supplied\n");
+ goto err_clk_put;
+ }
+
+ ac97->capture_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_RX1;
+ ac97->capture_dma_data.wrap = 4;
+ ac97->capture_dma_data.width = 32;
+ ac97->capture_dma_data.req_sel = of_dma[1];
+
+ ac97->playback_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_TX1;
+ ac97->playback_dma_data.wrap = 4;
+ ac97->playback_dma_data.width = 32;
+ ac97->playback_dma_data.req_sel = of_dma[1];
+
+ ret = snd_soc_register_dais(&pdev->dev, &tegra20_ac97_dai, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
+ ret = -ENOMEM;
+ goto err_clk_put;
+ }
+
+ ret = tegra_pcm_platform_register(&pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register PCM: %d\n", ret);
+ goto err_unregister_dai;
+ }
+
+ ret = tegra_asoc_utils_init(&ac97->util_data, &pdev->dev);
+ if (ret)
+ goto err_unregister_pcm;
+
+ ret = tegra_asoc_utils_set_ac97_rate(&ac97->util_data);
+ if (ret)
+ goto err_asoc_utils_fini;
+
+ ret = clk_prepare_enable(ac97->clk_ac97);
+ if (ret) {
+ dev_err(&pdev->dev, "clk_enable failed: %d\n", ret);
+ goto err_asoc_utils_fini;
+ }
+
+ /* XXX: crufty ASoC AC97 API - only one AC97 codec allowed */
+ workdata = ac97;
+
+ return 0;
+
+err_asoc_utils_fini:
+ tegra_asoc_utils_fini(&ac97->util_data);
+err_unregister_pcm:
+ tegra_pcm_platform_unregister(&pdev->dev);
+err_unregister_dai:
+ snd_soc_unregister_dai(&pdev->dev);
+err_clk_put:
+ clk_put(ac97->clk_ac97);
+err:
+ return ret;
+}
+
+static int tegra20_ac97_platform_remove(struct platform_device *pdev)
+{
+ struct tegra20_ac97 *ac97 = dev_get_drvdata(&pdev->dev);
+
+ tegra_pcm_platform_unregister(&pdev->dev);
+ snd_soc_unregister_dai(&pdev->dev);
+
+ tegra_asoc_utils_fini(&ac97->util_data);
+
+ clk_disable_unprepare(ac97->clk_ac97);
+ clk_put(ac97->clk_ac97);
+
+ return 0;
+}
+
+static const struct of_device_id tegra20_ac97_of_match[] __devinitconst = {
+ { .compatible = "nvidia,tegra20-ac97", },
+ {},
+};
+
+static struct platform_driver tegra20_ac97_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = tegra20_ac97_of_match,
+ },
+ .probe = tegra20_ac97_platform_probe,
+ .remove = tegra20_ac97_platform_remove,
+};
+module_platform_driver(tegra20_ac97_driver);
+
+MODULE_AUTHOR("Lucas Stach");
+MODULE_DESCRIPTION("Tegra20 AC97 ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, tegra20_ac97_of_match);
diff --git a/sound/soc/tegra/tegra20_ac97.h b/sound/soc/tegra/tegra20_ac97.h
new file mode 100644
index 0000000..a805aae
--- /dev/null
+++ b/sound/soc/tegra/tegra20_ac97.h
@@ -0,0 +1,95 @@
+/*
+ * tegra20_ac97.c - Definitions for the Tegra20 AC97 controller driver
+ *
+ * Copyright (c) 2012 Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
+ *
+ * Partly based on code copyright/by:
+ *
+ * Copyright (c) 2011,2012 Toradex Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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 __TEGRA20_AC97_H__
+#define __TEGRA20_AC97_H__
+
+#include "tegra_pcm.h"
+
+#define TEGRA20_AC97_CTRL 0x00
+#define TEGRA20_AC97_CMD 0x04
+#define TEGRA20_AC97_STATUS1 0x08
+/* ... */
+#define TEGRA20_AC97_FIFO1_SCR 0x1c
+/* ... */
+#define TEGRA20_AC97_FIFO_TX1 0x40
+#define TEGRA20_AC97_FIFO_RX1 0x80
+
+/* TEGRA20_AC97_CTRL */
+#define TEGRA20_AC97_CTRL_STM2_EN (1 << 16)
+#define TEGRA20_AC97_CTRL_DOUBLE_SAMPLING_EN (1 << 11)
+#define TEGRA20_AC97_CTRL_IO_CNTRL_EN (1 << 10)
+#define TEGRA20_AC97_CTRL_HSET_DAC_EN (1 << 9)
+#define TEGRA20_AC97_CTRL_LINE2_DAC_EN (1 << 8)
+#define TEGRA20_AC97_CTRL_PCM_LFE_EN (1 << 7)
+#define TEGRA20_AC97_CTRL_PCM_SUR_EN (1 << 6)
+#define TEGRA20_AC97_CTRL_PCM_CEN_DAC_EN (1 << 5)
+#define TEGRA20_AC97_CTRL_LINE1_DAC_EN (1 << 4)
+#define TEGRA20_AC97_CTRL_PCM_DAC_EN (1 << 3)
+#define TEGRA20_AC97_CTRL_COLD_RESET (1 << 2)
+#define TEGRA20_AC97_CTRL_WARM_RESET (1 << 1)
+#define TEGRA20_AC97_CTRL_STM_EN (1 << 0)
+
+/* TEGRA20_AC97_CMD */
+#define TEGRA20_AC97_CMD_CMD_ADDR_SHIFT 24
+#define TEGRA20_AC97_CMD_CMD_ADDR_MASK (0xff << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT)
+#define TEGRA20_AC97_CMD_CMD_DATA_SHIFT 8
+#define TEGRA20_AC97_CMD_CMD_DATA_MASK (0xffff << TEGRA20_AC97_CMD_CMD_DATA_SHIFT)
+#define TEGRA20_AC97_CMD_CMD_ID_SHIFT 2
+#define TEGRA20_AC97_CMD_CMD_ID_MASK (0x3 << TEGRA20_AC97_CMD_CMD_ID_SHIFT)
+#define TEGRA20_AC97_CMD_BUSY (1 << 0)
+
+/* TEGRA20_AC97_STATUS1 */
+#define TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT 24
+#define TEGRA20_AC97_STATUS1_STA_ADDR1_MASK (0xff << TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT)
+#define TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT 8
+#define TEGRA20_AC97_STATUS1_STA_DATA1_MASK (0xffff << TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT)
+#define TEGRA20_AC97_STATUS1_STA_VALID1 (1 << 2)
+#define TEGRA20_AC97_STATUS1_STANDBY1 (1 << 1)
+#define TEGRA20_AC97_STATUS1_CODEC1_RDY (1 << 0)
+
+/* TEGRA20_AC97_FIFO1_SCR */
+#define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT 27
+#define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_MASK (0x1f << TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT)
+#define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT 22
+#define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_MASK (0x1f << TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT)
+#define TEGRA20_AC97_FIFO_SCR_REC_OVERRUN_INT_STA (1 << 19)
+#define TEGRA20_AC97_FIFO_SCR_PB_UNDERRUN_INT_STA (1 << 18)
+#define TEGRA20_AC97_FIFO_SCR_REC_FORCE_MT (1 << 17)
+#define TEGRA20_AC97_FIFO_SCR_PB_FORCE_MT (1 << 16)
+#define TEGRA20_AC97_FIFO_SCR_REC_FULL_EN (1 << 15)
+#define TEGRA20_AC97_FIFO_SCR_REC_3QRT_FULL_EN (1 << 14)
+#define TEGRA20_AC97_FIFO_SCR_REC_QRT_FULL_EN (1 << 13)
+#define TEGRA20_AC97_FIFO_SCR_REC_EMPTY_EN (1 << 12)
+#define TEGRA20_AC97_FIFO_SCR_PB_NOT_FULL_EN (1 << 11)
+#define TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN (1 << 10)
+#define TEGRA20_AC97_FIFO_SCR_PB_3QRT_MT_EN (1 << 9)
+#define TEGRA20_AC97_FIFO_SCR_PB_EMPTY_MT_EN (1 << 8)
+
+struct tegra20_ac97 {
+ struct clk *clk_ac97;
+ struct tegra_pcm_dma_params capture_dma_data;
+ struct tegra_pcm_dma_params playback_dma_data;
+ struct regmap *regmap;
+ int reset_gpio;
+ int sync_gpio;
+ struct tegra_asoc_utils_data util_data;
+};
+#endif /* __TEGRA20_AC97_H__ */
--
1.7.11.7
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 6/7] ASoC: tegra: add ac97 host controller to device tree
[not found] ` <1355959056-6009-1-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
` (3 preceding siblings ...)
2012-12-19 23:17 ` [PATCH 5/7] ASoC: tegra: add ac97 host driver Lucas Stach
@ 2012-12-19 23:17 ` Lucas Stach
[not found] ` <1355959056-6009-6-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-19 23:17 ` [PATCH 7/7] ASoC: tegra: add machine driver using wm9712 codec Lucas Stach
2012-12-20 19:24 ` [PATCH 1/7] ARM: tegra: add ac97 clock Stephen Warren
6 siblings, 1 reply; 21+ messages in thread
From: Lucas Stach @ 2012-12-19 23:17 UTC (permalink / raw)
To: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Cc: patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E,
Liam Girdwood, Mark Brown, Stephen Warren,
linux-tegra-u79uwXL29TY76Z2rM5mHXA
This adds the DT bindings and a default entry for the Tegra 2x
AC97 host controller.
Signed-off-by: Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
---
.../bindings/sound/nvidia,tegra20-ac97.txt | 22 ++++++++++++++++++++++
arch/arm/boot/dts/tegra20.dtsi | 8 ++++++++
sound/soc/tegra/tegra20_ac97.c | 6 ++++--
sound/soc/tegra/tegra20_ac97.h | 2 +-
4 Dateien geändert, 35 Zeilen hinzugefügt(+), 3 Zeilen entfernt(-)
create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
new file mode 100644
index 0000000..c145497
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
@@ -0,0 +1,22 @@
+NVIDIA Tegra 20 AC97 controller
+
+Required properties:
+- compatible : "nvidia,tegra20-ac97"
+- reg : Should contain AC97 controller registers location and length
+- interrupts : Should contain AC97 interrupt
+- nvidia,dma-request-selector : The Tegra DMA controller's phandle and
+ request selector for the AC97 controller
+- nvidia,codec-reset-gpio : The Tegra GPIO controller's phandle and the number
+ of the GPIO used to reset the external AC97 codec
+- nvidia,codec-sync-gpio : The Tegra GPIO controller's phandle and the number
+ of the GPIO corresponding with the AC97 DAP _FS line
+Example:
+
+ac97@70002000 {
+ compatible = "nvidia,tegra20-ac97";
+ reg = <0x70002000 0x200>;
+ interrupts = <0 81 0x04>;
+ nvidia,dma-request-selector = <&apbdma 12>;
+ nvidia,codec-reset-gpio = <&gpio 170 0>;
+ nvidia,codec-sync-gpio = <&gpio 120 0>;
+};
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index b8effa1..b720859 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -177,6 +177,14 @@
compatible = "nvidia,tegra20-das";
reg = <0x70000c00 0x80>;
};
+
+ tegra_ac97: ac97@70002000 {
+ compatible = "nvidia,tegra20-ac97";
+ reg = <0x70002000 0x200>;
+ interrupts = <0 81 0x04>;
+ nvidia,dma-request-selector = <&apbdma 12>;
+ status = "disabled";
+ };
tegra_i2s1: i2s@70002800 {
compatible = "nvidia,tegra20-i2s";
diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c
index a2f71cf..a2cb89a 100644
--- a/sound/soc/tegra/tegra20_ac97.c
+++ b/sound/soc/tegra/tegra20_ac97.c
@@ -156,8 +156,10 @@ static inline void tegra20_ac97_start_playback(struct tegra20_ac97 *ac97)
TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN);
regmap_update_bits(ac97->regmap, TEGRA20_AC97_CTRL,
- TEGRA20_AC97_CTRL_PCM_DAC_EN | TEGRA20_AC97_CTRL_STM_EN,
- TEGRA20_AC97_CTRL_PCM_DAC_EN | TEGRA20_AC97_CTRL_STM_EN);
+ TEGRA20_AC97_CTRL_PCM_DAC_EN |
+ TEGRA20_AC97_CTRL_STM_EN,
+ TEGRA20_AC97_CTRL_PCM_DAC_EN |
+ TEGRA20_AC97_CTRL_STM_EN);
}
static inline void tegra20_ac97_stop_playback(struct tegra20_ac97 *ac97)
diff --git a/sound/soc/tegra/tegra20_ac97.h b/sound/soc/tegra/tegra20_ac97.h
index a805aae..dddc682 100644
--- a/sound/soc/tegra/tegra20_ac97.h
+++ b/sound/soc/tegra/tegra20_ac97.h
@@ -1,5 +1,5 @@
/*
- * tegra20_ac97.c - Definitions for the Tegra20 AC97 controller driver
+ * tegra20_ac97.h - Definitions for the Tegra20 AC97 controller driver
*
* Copyright (c) 2012 Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
*
--
1.7.11.7
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 7/7] ASoC: tegra: add machine driver using wm9712 codec
[not found] ` <1355959056-6009-1-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
` (4 preceding siblings ...)
2012-12-19 23:17 ` [PATCH 6/7] ASoC: tegra: add ac97 host controller to device tree Lucas Stach
@ 2012-12-19 23:17 ` Lucas Stach
[not found] ` <1355959056-6009-7-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
2012-12-20 19:24 ` [PATCH 1/7] ARM: tegra: add ac97 clock Stephen Warren
6 siblings, 1 reply; 21+ messages in thread
From: Lucas Stach @ 2012-12-19 23:17 UTC (permalink / raw)
To: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Cc: patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E,
Liam Girdwood, Mark Brown, Stephen Warren,
linux-tegra-u79uwXL29TY76Z2rM5mHXA, Marcel Ziswiler
This adds a simple machine driver using the Wolfson wm9712 AC97
codec.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler-2KBjVHiyJgBBDgjK7y7TUQ@public.gmane.org>
Signed-off-by: Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
---
.../bindings/sound/nvidia,tegra-audio-wm9712.txt | 53 +++++++
sound/soc/tegra/Kconfig | 10 ++
sound/soc/tegra/Makefile | 2 +
sound/soc/tegra/tegra_wm9712.c | 167 +++++++++++++++++++++
4 Dateien geändert, 232 Zeilen hinzugefügt(+)
create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
create mode 100644 sound/soc/tegra/tegra_wm9712.c
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
new file mode 100644
index 0000000..72bd589
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
@@ -0,0 +1,53 @@
+NVIDIA Tegra audio complex
+
+Required properties:
+- compatible : "nvidia,tegra-audio-wm9712"
+- nvidia,model : The user-visible name of this sound complex.
+- nvidia,audio-routing : A list of the connections between audio components.
+ Each entry is a pair of strings, the first being the connection's sink,
+ the second being the connection's source. Valid names for sources and
+ sinks are the WM9712's pins, and the jacks on the board:
+
+ WM9712 pins:
+
+ * MONOOUT
+ * HPOUTL
+ * HPOUTR
+ * LOUT2
+ * ROUT2
+ * OUT3
+ * LINEINL
+ * LINEINR
+ * PHONE
+ * PCBEEP
+ * MIC1
+ * MIC2
+ * Mic Bias
+
+ Board connectors:
+
+ * Headphone
+ * LineIn
+ * Mic
+
+- nvidia,ac97-controller : The phandle of the Tegra AC97 controller
+- nvidia,audio-codec : The phandle of the WM9712 audio codec
+
+
+Example:
+
+sound {
+ compatible = "nvidia,tegra-audio-wm9712-colibri_t20",
+ "nvidia,tegra-audio-wm9712";
+ nvidia,model = "Toradex Colibri T20";
+
+ nvidia,audio-routing =
+ "Headphone", "HPOUTL",
+ "Headphone", "HPOUTR",
+ "LineIn", "LINEINL",
+ "LineIn", "LINEINR",
+ "Mic", "MIC1";
+
+ nvidia,ac97-controller = <&ac97>;
+ nvidia,audio-codec = <&wm9712>;
+};
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index 763c68d..0d62025 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -78,6 +78,16 @@ config SND_SOC_TEGRA_WM8903
boards using the WM8093 codec. Currently, the supported boards are
Harmony, Ventana, Seaboard, Kaen, and Aebl.
+config SND_SOC_TEGRA_WM9712
+ tristate "SoC Audio support for Tegra boards using a WM9712 codec"
+ depends on SND_SOC_TEGRA
+ select SND_SOC_TEGRA20_AC97 if ARCH_TEGRA_2x_SOC
+ select SND_SOC_AC97_BUS
+ select SND_SOC_WM9712
+ help
+ Say Y or M here if you want to add support for SoC audio on Tegra
+ boards using the WM9712 (or compatible) codec.
+
config SND_SOC_TEGRA_TRIMSLICE
tristate "SoC Audio support for TrimSlice board"
depends on SND_SOC_TEGRA && I2C
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index 02513d9..416a14b 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -20,10 +20,12 @@ obj-$(CONFIG_SND_SOC_TEGRA30_I2S) += snd-soc-tegra30-i2s.o
# Tegra machine Support
snd-soc-tegra-wm8753-objs := tegra_wm8753.o
snd-soc-tegra-wm8903-objs := tegra_wm8903.o
+snd-soc-tegra-wm9712-objs := tegra_wm9712.o
snd-soc-tegra-trimslice-objs := trimslice.o
snd-soc-tegra-alc5632-objs := tegra_alc5632.o
obj-$(CONFIG_SND_SOC_TEGRA_WM8753) += snd-soc-tegra-wm8753.o
obj-$(CONFIG_SND_SOC_TEGRA_WM8903) += snd-soc-tegra-wm8903.o
+obj-$(CONFIG_SND_SOC_TEGRA_WM9712) += snd-soc-tegra-wm9712.o
obj-$(CONFIG_SND_SOC_TEGRA_TRIMSLICE) += snd-soc-tegra-trimslice.o
obj-$(CONFIG_SND_SOC_TEGRA_ALC5632) += snd-soc-tegra-alc5632.o
diff --git a/sound/soc/tegra/tegra_wm9712.c b/sound/soc/tegra/tegra_wm9712.c
new file mode 100644
index 0000000..2e9b588
--- /dev/null
+++ b/sound/soc/tegra/tegra_wm9712.c
@@ -0,0 +1,167 @@
+/*
+ * tegra20_wm9712.c - Tegra machine ASoC driver for boards using WM9712 codec.
+ *
+ * Copyright 2012 Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
+ *
+ * Partly based on code copyright/by:
+ * Copyright 2011,2012 Toradex Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define DRV_NAME "tegra-snd-wm9712"
+
+static const struct snd_soc_dapm_widget tegra_wm9712_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_LINE("LineIn", NULL),
+ SND_SOC_DAPM_MIC("Mic", NULL),
+};
+
+static int tegra_wm9712_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err;
+
+ snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
+
+ err = snd_soc_dapm_sync(dapm);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static int tegra_wm9712_remove(struct snd_soc_card *card)
+{
+ return 0;
+}
+
+static struct snd_soc_dai_link tegra_wm9712_dai = {
+ .name = "AC97 HiFi",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai_name = "tegra-ac97-pcm",
+ .codec_dai_name = "wm9712-hifi",
+ .init = tegra_wm9712_init,
+};
+
+static struct snd_soc_card snd_soc_tegra_wm9712 = {
+ .name = "tegra-wm9712",
+ .owner = THIS_MODULE,
+ .dai_link = &tegra_wm9712_dai,
+ .num_links = 1,
+
+ .remove = tegra_wm9712_remove,
+
+ .dapm_widgets = tegra_wm9712_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tegra_wm9712_dapm_widgets),
+ .fully_routed = true,
+};
+
+static int tegra_wm9712_driver_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct snd_soc_card *card = &snd_soc_tegra_wm9712;
+ int ret;
+
+ if (!pdev->dev.of_node) {
+ dev_err(&pdev->dev, "No platform data supplied\n");
+ return -EINVAL;
+ }
+
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+
+ 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_wm9712_dai.codec_of_node = of_parse_phandle(np,
+ "nvidia,audio-codec", 0);
+ if (!tegra_wm9712_dai.codec_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,audio-codec' missing or invalid\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ tegra_wm9712_dai.cpu_of_node = of_parse_phandle(np,
+ "nvidia,ac97-controller", 0);
+ if (!tegra_wm9712_dai.cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,ac97-controller' missing or invalid\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ tegra_wm9712_dai.platform_of_node = tegra_wm9712_dai.cpu_of_node;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
+ ret);
+ goto err;
+ }
+
+ return 0;
+
+err:
+ return ret;
+}
+
+static int tegra_wm9712_driver_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+
+ return 0;
+}
+
+static const struct of_device_id tegra_wm9712_of_match[] __devinitconst = {
+ { .compatible = "nvidia,tegra-audio-wm9712", },
+ {},
+};
+
+static struct platform_driver tegra_wm9712_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = tegra_wm9712_of_match,
+ },
+ .probe = tegra_wm9712_driver_probe,
+ .remove = tegra_wm9712_driver_remove,
+};
+module_platform_driver(tegra_wm9712_driver);
+
+MODULE_AUTHOR("Lucas Stach");
+MODULE_DESCRIPTION("Tegra+WM9712 machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, tegra_wm9712_of_match);
--
1.7.11.7
^ permalink raw reply related [flat|nested] 21+ messages in thread* Re: [PATCH 1/7] ARM: tegra: add ac97 clock
[not found] ` <1355959056-6009-1-git-send-email-dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org>
` (5 preceding siblings ...)
2012-12-19 23:17 ` [PATCH 7/7] ASoC: tegra: add machine driver using wm9712 codec Lucas Stach
@ 2012-12-20 19:24 ` Stephen Warren
6 siblings, 0 replies; 21+ messages in thread
From: Stephen Warren @ 2012-12-20 19:24 UTC (permalink / raw)
To: Lucas Stach
Cc: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw,
patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E,
Liam Girdwood, Mark Brown, linux-tegra-u79uwXL29TY76Z2rM5mHXA
On 12/19/2012 04:17 PM, Lucas Stach wrote:
> Add clock used by the AC97 host controller.
This is going to conflict with Prashant's clock driver rework. Can you
rebase it on top of that once it's checked in. That might be a couple
weeks out though.
^ permalink raw reply [flat|nested] 21+ messages in thread