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Commit 06a4c648 authored by Sudheer Papothi's avatar Sudheer Papothi
Browse files

ASoC: Add support for event listener from the codec 



During low power island mode, register to event listener
to process soundwire inband interrupts from the soundwire
master driver.

Change-Id: Ib15f5ec59ea19010dbb8f9744de76bfc2ca7eebb
Signed-off-by: default avatarSudheer Papothi <spapothi@codeaurora.org>
parent 72ee264c

asoc/codecs/bolero/bolero-cdc.c

+38 −0
Original line number Diff line number Diff line
@@ -504,6 +504,8 @@ int bolero_register_macro(struct device *dev, u16 macro_id, 
	if (macro_id == TX_MACRO) {

		priv->macro_params[macro_id].reg_wake_irq = ops->reg_wake_irq;

		priv->macro_params[macro_id].clk_switch = ops->clk_switch;

		priv->macro_params[macro_id].reg_evt_listener =

							ops->reg_evt_listener;

	}



	priv->num_dais += ops->num_dais;
@@ -567,6 +569,7 @@ void bolero_unregister_macro(struct device *dev, u16 macro_id) 
	if (macro_id == TX_MACRO) {

		priv->macro_params[macro_id].reg_wake_irq = NULL;

		priv->macro_params[macro_id].clk_switch = NULL;

		priv->macro_params[macro_id].reg_evt_listener = NULL;

	}



	priv->num_dais -= priv->macro_params[macro_id].num_dais;
@@ -803,6 +806,41 @@ int bolero_tx_clk_switch(struct snd_soc_component *component) 
}

EXPORT_SYMBOL(bolero_tx_clk_switch);



/**

 * bolero_register_event_listener - Register/Deregister to event listener

 *

 * @component: pointer to codec component instance.

 * @enable: when set to 1 registers to event listener otherwise, derigisters

 *          from the event listener

 *

 * Returns 0 on success or -EINVAL on error.

 */

int bolero_register_event_listener(struct snd_soc_component *component,

				   bool enable)

{

	struct bolero_priv *priv = NULL;

	int ret = 0;



	if (!component)

		return -EINVAL;



	priv = snd_soc_component_get_drvdata(component);

	if (!priv)

		return -EINVAL;



	if (!bolero_is_valid_codec_dev(priv->dev)) {

		dev_err(component->dev, "%s: invalid codec\n", __func__);

		return -EINVAL;

	}



	if (priv->macro_params[TX_MACRO].reg_evt_listener)

		ret = priv->macro_params[TX_MACRO].reg_evt_listener(component,

								    enable);



	return ret;

}

EXPORT_SYMBOL(bolero_register_event_listener);



static int bolero_soc_codec_probe(struct snd_soc_component *component)

{

	struct bolero_priv *priv = dev_get_drvdata(component->dev);

asoc/codecs/bolero/bolero-cdc.h

+10 −0
Original line number Diff line number Diff line
@@ -56,6 +56,7 @@ struct macro_ops { 
	int (*set_port_map)(struct snd_soc_component *component, u32 uc,

			    u32 size, void *data);

	int (*clk_switch)(struct snd_soc_component *component);

	int (*reg_evt_listener)(struct snd_soc_component *component, bool en);

	char __iomem *io_base;

	u16 clk_id_req;

	u16 default_clk_id;
@@ -80,6 +81,8 @@ int bolero_runtime_resume(struct device *dev); 
int bolero_runtime_suspend(struct device *dev);

int bolero_set_port_map(struct snd_soc_component *component, u32 size, void *data);

int bolero_tx_clk_switch(struct snd_soc_component *component);

int bolero_register_event_listener(struct snd_soc_component *component,

				   bool enable);

#else

static inline int bolero_register_res_clk(struct device *dev, rsc_clk_cb_t cb)

{
@@ -144,5 +147,12 @@ static inline int bolero_tx_clk_switch(struct snd_soc_component *component) 
	return 0;

}



static inline int bolero_register_event_listener(

					struct snd_soc_component *component,

					bool enable)

{

	return 0;

}



#endif /* CONFIG_SND_SOC_BOLERO */

#endif /* BOLERO_CDC_H */

asoc/codecs/bolero/tx-macro.c

+37 −0
Original line number Diff line number Diff line
@@ -1582,6 +1582,42 @@ static const struct snd_kcontrol_new tx_macro_snd_controls[] = { 
		       tx_macro_get_bcs, tx_macro_set_bcs),

};



static int tx_macro_register_event_listener(struct snd_soc_component *component,

					    bool enable)

{

	struct device *tx_dev = NULL;

	struct tx_macro_priv *tx_priv = NULL;

	int ret = 0;



	if (!component)

		return -EINVAL;



	tx_dev = bolero_get_device_ptr(component->dev, TX_MACRO);

	if (!tx_dev) {

		dev_err(component->dev,

			"%s: null device for macro!\n", __func__);

		return -EINVAL;

	}

	tx_priv = dev_get_drvdata(tx_dev);

	if (!tx_priv) {

		dev_err(component->dev,

			"%s: priv is null for macro!\n", __func__);

		return -EINVAL;

	}

	if (tx_priv->swr_ctrl_data) {

		if (enable)

			ret = swrm_wcd_notify(

				tx_priv->swr_ctrl_data[0].tx_swr_pdev,

				SWR_REGISTER_WAKEUP, NULL);

		else

			ret = swrm_wcd_notify(

				tx_priv->swr_ctrl_data[0].tx_swr_pdev,

				SWR_DEREGISTER_WAKEUP, NULL);

	}



	return ret;

}



static int tx_macro_tx_va_mclk_enable(struct tx_macro_priv *tx_priv,

				      struct regmap *regmap, int clk_type,

				      bool enable)
@@ -2121,6 +2157,7 @@ static void tx_macro_init_ops(struct macro_ops *ops, 
	ops->reg_wake_irq = tx_macro_reg_wake_irq;

	ops->set_port_map = tx_macro_set_port_map;

	ops->clk_switch = tx_macro_clk_switch;

	ops->reg_evt_listener = tx_macro_register_event_listener;

}



static int tx_macro_probe(struct platform_device *pdev)

asoc/codecs/bolero/va-macro.c

+2 −0
Original line number Diff line number Diff line
@@ -287,8 +287,10 @@ static int va_macro_swr_pwr_event(struct snd_soc_dapm_widget *w, 
			if (bolero_tx_clk_switch(component))

				dev_dbg(va_dev, "%s: clock switch failed\n",

					__func__);

		bolero_register_event_listener(component, true);

		break;

	case SND_SOC_DAPM_POST_PMD:

		bolero_register_event_listener(component, false);

		if (bolero_tx_clk_switch(component))

			dev_dbg(va_dev, "%s: clock switch failed\n",__func__);

		if (va_priv->lpass_audio_hw_vote)