linux-kernel - [PATCH v3 5/8] ASoC: cs42l42: Export some functions for SoundWire

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Message-ID: <20230127165111.3010960-6-sbinding@opensource.cirrus.com>
Date:   Fri, 27 Jan 2023 16:51:08 +0000
From:   Stefan Binding <sbinding@...nsource.cirrus.com>
To:     Vinod Koul <vkoul@...nel.org>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
CC:     <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>,
        Stefan Binding <sbinding@...nsource.cirrus.com>
Subject: [PATCH v3 5/8] ASoC: cs42l42: Export some functions for SoundWire

From: Richard Fitzgerald <rf@...nsource.cirrus.com>

Export functions that will be needed by a SoundWire module.

Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>
---
 sound/soc/codecs/cs42l42.c | 14 +++++++++-----
 sound/soc/codecs/cs42l42.h |  5 +++++
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index d81c6eb1c1e59..cefefd7061689 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -653,8 +653,8 @@ static const struct cs42l42_pll_params pll_ratio_table[] = {
 	{ 24576000, 1, 0x03, 0x40, 0x000000, 0x03, 0x10, 12288000, 128, 1}
 };
 
-static int cs42l42_pll_config(struct snd_soc_component *component, unsigned int clk,
-			      unsigned int sample_rate)
+int cs42l42_pll_config(struct snd_soc_component *component, unsigned int clk,
+		       unsigned int sample_rate)
 {
 	struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component);
 	int i;
@@ -740,8 +740,9 @@ static int cs42l42_pll_config(struct snd_soc_component *component, unsigned int
 
 	return -EINVAL;
 }
+EXPORT_SYMBOL_NS_GPL(cs42l42_pll_config, SND_SOC_CS42L42_CORE);
 
-static void cs42l42_src_config(struct snd_soc_component *component, unsigned int sample_rate)
+void cs42l42_src_config(struct snd_soc_component *component, unsigned int sample_rate)
 {
 	struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component);
 	unsigned int fs;
@@ -773,6 +774,7 @@ static void cs42l42_src_config(struct snd_soc_component *component, unsigned int
 				      CS42L42_CLK_OASRC_SEL_MASK,
 				      fs << CS42L42_CLK_OASRC_SEL_SHIFT);
 }
+EXPORT_SYMBOL_NS_GPL(cs42l42_src_config, SND_SOC_CS42L42_CORE);
 
 static int cs42l42_asp_config(struct snd_soc_component *component,
 			      unsigned int sclk, unsigned int sample_rate)
@@ -1013,7 +1015,7 @@ static int cs42l42_set_bclk_ratio(struct snd_soc_dai *dai,
 	return 0;
 }
 
-static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
+int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
 {
 	struct snd_soc_component *component = dai->component;
 	struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component);
@@ -1106,6 +1108,7 @@ static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(cs42l42_mute_stream, SND_SOC_CS42L42_CORE);
 
 #define CS42L42_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
 			 SNDRV_PCM_FMTBIT_S24_LE |\
@@ -1648,7 +1651,7 @@ static const struct cs42l42_irq_params irq_params_table[] = {
 		CS42L42_TSRS_PLUG_VAL_MASK}
 };
 
-static irqreturn_t cs42l42_irq_thread(int irq, void *data)
+irqreturn_t cs42l42_irq_thread(int irq, void *data)
 {
 	struct cs42l42_private *cs42l42 = (struct cs42l42_private *)data;
 	unsigned int stickies[12];
@@ -1765,6 +1768,7 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data)
 
 	return IRQ_HANDLED;
 }
+EXPORT_SYMBOL_NS_GPL(cs42l42_irq_thread, SND_SOC_CS42L42_CORE);
 
 static void cs42l42_set_interrupt_masks(struct cs42l42_private *cs42l42)
 {
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h
index 17aab06adc8e6..ef8219f489100 100644
--- a/sound/soc/codecs/cs42l42.h
+++ b/sound/soc/codecs/cs42l42.h
@@ -61,6 +61,11 @@ extern struct snd_soc_dai_driver cs42l42_dai;
 bool cs42l42_readable_register(struct device *dev, unsigned int reg);
 bool cs42l42_volatile_register(struct device *dev, unsigned int reg);
 
+int cs42l42_pll_config(struct snd_soc_component *component,
+		       unsigned int clk, unsigned int sample_rate);
+void cs42l42_src_config(struct snd_soc_component *component, unsigned int sample_rate);
+int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream);
+irqreturn_t cs42l42_irq_thread(int irq, void *data);
 int cs42l42_suspend(struct device *dev);
 int cs42l42_resume(struct device *dev);
 void cs42l42_resume_restore(struct device *dev);
-- 
2.34.1