ASoC: amd: acp: Power on/off the speaker enable gpio pin based on DAPM callback.

Configure the speaker gpio pin based on power sequence of the DAPM
speaker events.
Enable speaker after widget power up and Disable before widget  powerdown.

Signed-off-by: V sujith kumar Reddy <vsujithkumar.reddy@amd.com>
Link: https://lore.kernel.org/r/20211224150058.2444776-1-vsujithkumar.reddy@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/acp/Kconfig b/sound/soc/amd/acp/Kconfig
index 154be5e..d5838df 100644 (file)
--- a/sound/soc/amd/acp/Kconfig
+++ b/sound/soc/amd/acp/Kconfig
@@ -32,7 +32,7 @@ config SND_AMD_ASOC_RENOIR
 
 config SND_SOC_AMD_MACH_COMMON
        tristate
-       depends on X86 && PCI && I2C
+       depends on X86 && PCI && I2C && GPIOLIB
        select CLK_FIXED_FCH
        select SND_SOC_RT5682_I2C
        select SND_SOC_DMIC
@@ -44,14 +44,14 @@ config SND_SOC_AMD_MACH_COMMON
 
 config SND_SOC_AMD_LEGACY_MACH
        tristate "AMD Legacy Machine Driver Support"
-       depends on X86 && PCI && I2C
+       depends on X86 && PCI && I2C && GPIOLIB
        select SND_SOC_AMD_MACH_COMMON
        help
          This option enables legacy sound card support for ACP audio.
 
 config SND_SOC_AMD_SOF_MACH
        tristate "AMD SOF Machine Driver Support"
-       depends on X86 && PCI && I2C
+       depends on X86 && PCI && I2C && GPIOLIB
        select SND_SOC_AMD_MACH_COMMON
        help
          This option enables SOF sound card support for ACP audio.

diff --git a/sound/soc/amd/acp/acp-legacy-mach.c b/sound/soc/amd/acp/acp-legacy-mach.c
index de0f802..0ad1cf4 100644 (file)
--- a/sound/soc/amd/acp/acp-legacy-mach.c
+++ b/sound/soc/amd/acp/acp-legacy-mach.c
@@ -27,6 +27,7 @@ static struct acp_card_drvdata rt5682_rt1019_data = {
        .hs_codec_id = RT5682,
        .amp_codec_id = RT1019,
        .dmic_codec_id = NONE,
+       .gpio_spkr_en = EN_SPKR_GPIO_GB,
 };
 
 static const struct snd_kcontrol_new acp_controls[] = {
@@ -41,15 +42,16 @@ static const struct snd_kcontrol_new acp_controls[] = {
 static const struct snd_soc_dapm_widget acp_widgets[] = {
        SND_SOC_DAPM_HP("Headphone Jack", NULL),
        SND_SOC_DAPM_MIC("Headset Mic", NULL),
-       SND_SOC_DAPM_SPK("Spk", NULL),
-       SND_SOC_DAPM_SPK("Left Spk", NULL),
-       SND_SOC_DAPM_SPK("Right Spk", NULL),
+       SND_SOC_DAPM_SPK("Spk", event_spkr_handler),
+       SND_SOC_DAPM_SPK("Left Spk", event_spkr_handler),
+       SND_SOC_DAPM_SPK("Right Spk", event_spkr_handler),
 };
 
 static int acp_asoc_probe(struct platform_device *pdev)
 {
        struct snd_soc_card *card = NULL;
        struct device *dev = &pdev->dev;
+       unsigned int spkr_gpio;
        int ret;
 
        if (!pdev->id_entry)
@@ -67,9 +69,20 @@ static int acp_asoc_probe(struct platform_device *pdev)
        card->controls = acp_controls;
        card->num_controls = ARRAY_SIZE(acp_controls);
        card->drvdata = (struct acp_card_drvdata *)pdev->id_entry->driver_data;
+       spkr_gpio = ((struct acp_card_drvdata *)(card->drvdata))->gpio_spkr_en;
 
        acp_legacy_dai_links_create(card);
 
+       if (gpio_is_valid(spkr_gpio)) {
+               ret = devm_gpio_request(dev, spkr_gpio, "spkren");
+               if (ret) {
+                       dev_err(dev, "(%s) gpio request failed: %d\n",
+                               __func__, ret);
+                       return ret;
+               }
+               gpio_direction_output(spkr_gpio, 0);
+       }
+
        ret = devm_snd_soc_register_card(&pdev->dev, card);
        if (ret) {
                dev_err(&pdev->dev,

diff --git a/sound/soc/amd/acp/acp-mach-common.c b/sound/soc/amd/acp/acp-mach-common.c
index 7785f12..03d8d1a 100644 (file)
--- a/sound/soc/amd/acp/acp-mach-common.c
+++ b/sound/soc/amd/acp/acp-mach-common.c
@@ -71,6 +71,31 @@ static const struct snd_soc_dapm_route rt5682_map[] = {
        { "IN1P", NULL, "Headset Mic" },
 };
 
+int event_spkr_handler(struct snd_soc_dapm_widget *w,
+                       struct snd_kcontrol *k, int event)
+{
+       struct snd_soc_dapm_context *dapm = w->dapm;
+       struct snd_soc_card *card = dapm->card;
+       struct acp_card_drvdata *drvdata = snd_soc_card_get_drvdata(card);
+
+       if (!gpio_is_valid(drvdata->gpio_spkr_en))
+               return 0;
+
+       switch (event) {
+       case SND_SOC_DAPM_POST_PMU:
+               gpio_set_value(drvdata->gpio_spkr_en, 1);
+               break;
+       case SND_SOC_DAPM_PRE_PMD:
+               gpio_set_value(drvdata->gpio_spkr_en, 0);
+               break;
+       default:
+               dev_warn(card->dev, "%s invalid setting\n", __func__);
+               break;
+       }
+       return 0;
+}
+EXPORT_SYMBOL_NS_GPL(event_spkr_handler, SND_SOC_AMD_MACH);
+
 /* Define card ops for RT5682 CODEC */
 static int acp_card_rt5682_init(struct snd_soc_pcm_runtime *rtd)
 {

diff --git a/sound/soc/amd/acp/acp-mach.h b/sound/soc/amd/acp/acp-mach.h
index 5dc47cf..fd62998 100644 (file)
--- a/sound/soc/amd/acp/acp-mach.h
+++ b/sound/soc/amd/acp/acp-mach.h
@@ -17,6 +17,12 @@
 #include <linux/input.h>
 #include <linux/module.h>
 #include <sound/soc.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+
+#define EN_SPKR_GPIO_GB                0x11F
+#define EN_SPKR_GPIO_NK                0x146
+#define EN_SPKR_GPIO_NONE      -EINVAL
 
 enum be_id {
        HEADSET_BE_ID = 0,
@@ -49,9 +55,11 @@ struct acp_card_drvdata {
        unsigned int dai_fmt;
        struct clk *wclk;
        struct clk *bclk;
+       unsigned int gpio_spkr_en;
 };
 
 int acp_sofdsp_dai_links_create(struct snd_soc_card *card);
 int acp_legacy_dai_links_create(struct snd_soc_card *card);
-
+int event_spkr_handler(struct snd_soc_dapm_widget *w,
+                       struct snd_kcontrol *k, int event);
 #endif

diff --git a/sound/soc/amd/acp/acp-sof-mach.c b/sound/soc/amd/acp/acp-sof-mach.c
index 854eb72..07de461 100644 (file)
--- a/sound/soc/amd/acp/acp-sof-mach.c
+++ b/sound/soc/amd/acp/acp-sof-mach.c
@@ -27,6 +27,7 @@ static struct acp_card_drvdata sof_rt5682_rt1019_data = {
        .hs_codec_id = RT5682,
        .amp_codec_id = RT1019,
        .dmic_codec_id = DMIC,
+       .gpio_spkr_en = EN_SPKR_GPIO_GB,
 };
 
 static struct acp_card_drvdata sof_rt5682_max_data = {
@@ -36,6 +37,7 @@ static struct acp_card_drvdata sof_rt5682_max_data = {
        .hs_codec_id = RT5682,
        .amp_codec_id = MAX98360A,
        .dmic_codec_id = DMIC,
+       .gpio_spkr_en = EN_SPKR_GPIO_NK,
 };
 
 static struct acp_card_drvdata sof_rt5682s_max_data = {
@@ -45,6 +47,7 @@ static struct acp_card_drvdata sof_rt5682s_max_data = {
        .hs_codec_id = RT5682S,
        .amp_codec_id = MAX98360A,
        .dmic_codec_id = DMIC,
+       .gpio_spkr_en = EN_SPKR_GPIO_NK,
 };
 
 static const struct snd_kcontrol_new acp_controls[] = {
@@ -58,15 +61,16 @@ static const struct snd_kcontrol_new acp_controls[] = {
 static const struct snd_soc_dapm_widget acp_widgets[] = {
        SND_SOC_DAPM_HP("Headphone Jack", NULL),
        SND_SOC_DAPM_MIC("Headset Mic", NULL),
-       SND_SOC_DAPM_SPK("Spk", NULL),
-       SND_SOC_DAPM_SPK("Left Spk", NULL),
-       SND_SOC_DAPM_SPK("Right Spk", NULL),
+       SND_SOC_DAPM_SPK("Spk", event_spkr_handler),
+       SND_SOC_DAPM_SPK("Left Spk", event_spkr_handler),
+       SND_SOC_DAPM_SPK("Right Spk", event_spkr_handler),
 };
 
 static int acp_sof_probe(struct platform_device *pdev)
 {
        struct snd_soc_card *card = NULL;
        struct device *dev = &pdev->dev;
+       unsigned int spkr_gpio;
        int ret;
 
        if (!pdev->id_entry)
@@ -84,9 +88,20 @@ static int acp_sof_probe(struct platform_device *pdev)
        card->controls = acp_controls;
        card->num_controls = ARRAY_SIZE(acp_controls);
        card->drvdata = (struct acp_card_drvdata *)pdev->id_entry->driver_data;
+       spkr_gpio = ((struct acp_card_drvdata *)(card->drvdata))->gpio_spkr_en;
 
        acp_sofdsp_dai_links_create(card);
 
+       if (gpio_is_valid(spkr_gpio)) {
+               ret = devm_gpio_request(dev, spkr_gpio, "spkren");
+               if (ret) {
+                       dev_err(dev, "(%s) gpio request failed: %d\n",
+                               __func__, ret);
+                       return ret;
+               }
+               gpio_direction_output(spkr_gpio, 0);
+       }
+
        ret = devm_snd_soc_register_card(&pdev->dev, card);
        if (ret) {
                dev_err(&pdev->dev,