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Commit f0b182b0 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Implement WM8994 thermal warning and shutdown interrupt support 



ALSA doesn't really have good mechanisms for dealing with these so we just
log them - the hardware already has automatic shutdown support.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 1ddc07d0

sound/soc/codecs/wm8994.c

+26 −0
Original line number Diff line number Diff line
@@ -3045,6 +3045,24 @@ static irqreturn_t wm8994_fifo_error(int irq, void *data) 
	return IRQ_HANDLED;

}



static irqreturn_t wm8994_temp_warn(int irq, void *data)

{

	struct snd_soc_codec *codec = data;



	dev_err(codec->dev, "Thermal warning\n");



	return IRQ_HANDLED;

}



static irqreturn_t wm8994_temp_shut(int irq, void *data)

{

	struct snd_soc_codec *codec = data;



	dev_crit(codec->dev, "Thermal shutdown\n");



	return IRQ_HANDLED;

}



static int wm8994_codec_probe(struct snd_soc_codec *codec)

{

	struct wm8994 *control;
@@ -3123,6 +3141,10 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec) 


	wm8994_request_irq(codec->control_data, WM8994_IRQ_FIFOS_ERR,

			   wm8994_fifo_error, "FIFO error", codec);

	wm8994_request_irq(wm8994->wm8994, WM8994_IRQ_TEMP_WARN,

			   wm8994_temp_warn, "Thermal warning", codec);

	wm8994_request_irq(wm8994->wm8994, WM8994_IRQ_TEMP_SHUT,

			   wm8994_temp_shut, "Thermal shutdown", codec);



	ret = wm8994_request_irq(codec->control_data, WM8994_IRQ_DCS_DONE,

				 wm_hubs_dcs_done, "DC servo done",
@@ -3387,6 +3409,8 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec) 
	wm8994_free_irq(codec->control_data, WM8994_IRQ_DCS_DONE,

			&wm8994->hubs);

	wm8994_free_irq(codec->control_data, WM8994_IRQ_FIFOS_ERR, codec);

	wm8994_free_irq(codec->control_data, WM8994_IRQ_TEMP_SHUT, codec);

	wm8994_free_irq(codec->control_data, WM8994_IRQ_TEMP_WARN, codec);

err:

	kfree(wm8994);

	return ret;
@@ -3409,6 +3433,8 @@ static int wm8994_codec_remove(struct snd_soc_codec *codec) 
	wm8994_free_irq(codec->control_data, WM8994_IRQ_DCS_DONE,

			&wm8994->hubs);

	wm8994_free_irq(codec->control_data, WM8994_IRQ_FIFOS_ERR, codec);

	wm8994_free_irq(codec->control_data, WM8994_IRQ_TEMP_SHUT, codec);

	wm8994_free_irq(codec->control_data, WM8994_IRQ_TEMP_WARN, codec);



	switch (control->type) {

	case WM8994: