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Commit 79f439ea authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: x86: Drop had_get_hwstate() 



The helper function isn't clearer than the plain condition check
"if (drv_status == HDA_DRV_DISCONNECTED)".  By expanding this, the
compiler could even catch the possible uninitialized cases, so we
could fix them, too.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent caa2a61a

sound/x86/intel_hdmi_audio.c

+14 −28
Original line number Diff line number Diff line
@@ -155,15 +155,6 @@ static const struct snd_pcm_hardware snd_intel_hadstream = { 
};



/* Register access functions */

static int had_get_hwstate(struct snd_intelhad *intelhaddata)

{

	/* Check for device presence -SW state */

	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED)

		return -ENODEV;



	return 0;

}



static inline void

mid_hdmi_audio_read(struct snd_intelhad *ctx, u32 reg, u32 *val)

{
@@ -179,11 +170,8 @@ mid_hdmi_audio_write(struct snd_intelhad *ctx, u32 reg, u32 val) 
static int had_read_register(struct snd_intelhad *intelhaddata,

			     u32 offset, u32 *data)

{

	int retval;



	retval = had_get_hwstate(intelhaddata);

	if (retval)

		return retval;

	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED)

		return -ENODEV;



	mid_hdmi_audio_read(intelhaddata, offset, data);

	return 0;
@@ -201,11 +189,8 @@ static void fixup_dp_config(struct snd_intelhad *intelhaddata, 
static int had_write_register(struct snd_intelhad *intelhaddata,

			      u32 offset, u32 data)

{

	int retval;



	retval = had_get_hwstate(intelhaddata);

	if (retval)

		return retval;

	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED)

		return -ENODEV;



	fixup_dp_config(intelhaddata, offset, &data);

	mid_hdmi_audio_write(intelhaddata, offset, data);
@@ -216,11 +201,9 @@ static int had_read_modify(struct snd_intelhad *intelhaddata, u32 offset, 
			   u32 data, u32 mask)

{

	u32 val_tmp;

	int retval;



	retval = had_get_hwstate(intelhaddata);

	if (retval)

		return retval;

	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED)

		return -ENODEV;



	mid_hdmi_audio_read(intelhaddata, offset, &val_tmp);

	val_tmp &= ~mask;
@@ -930,7 +913,7 @@ static int snd_intelhad_prog_n(u32 aud_samp_freq, u32 *n_param, 


static void snd_intelhad_handle_underrun(struct snd_intelhad *intelhaddata)

{

	u32 hdmi_status, i = 0;

	u32 hdmi_status = 0, i = 0;



	/* Handle Underrun interrupt within Audio Unit */

	had_write_register(intelhaddata, AUD_CONFIG, 0);
@@ -977,7 +960,7 @@ static int snd_intelhad_open(struct snd_pcm_substream *substream) 


	pm_runtime_get(intelhaddata->dev);



	if (had_get_hwstate(intelhaddata)) {

	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {

		dev_dbg(intelhaddata->dev, "%s: HDMI cable plugged-out\n",

			__func__);

		retval = -ENODEV;
@@ -1185,7 +1168,7 @@ static int snd_intelhad_pcm_trigger(struct snd_pcm_substream *substream, 
	switch (cmd) {

	case SNDRV_PCM_TRIGGER_START:

		/* Disable local INTRs till register prgmng is done */

		if (had_get_hwstate(intelhaddata)) {

		if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {

			dev_dbg(intelhaddata->dev,

				"_START: HDMI cable plugged-out\n");

			retval = -ENODEV;
@@ -1245,7 +1228,7 @@ static int snd_intelhad_pcm_prepare(struct snd_pcm_substream *substream) 
	runtime = substream->runtime;

	had_stream = &intelhaddata->stream_data;



	if (had_get_hwstate(intelhaddata)) {

	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {

		dev_dbg(intelhaddata->dev, "%s: HDMI cable plugged-out\n",

			__func__);

		retval = -ENODEV;
@@ -1329,6 +1312,9 @@ static snd_pcm_uframes_t snd_intelhad_pcm_pointer( 


	intelhaddata = snd_pcm_substream_chip(substream);



	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED)

		return SNDRV_PCM_POS_XRUN;



	if (intelhaddata->flag_underrun) {

		intelhaddata->flag_underrun = false;

		return SNDRV_PCM_POS_XRUN;
@@ -1614,7 +1600,7 @@ static int had_process_buffer_done(struct snd_intelhad *intelhaddata) 


	spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);



	if (had_get_hwstate(intelhaddata)) {

	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {

		dev_dbg(intelhaddata->dev, "HDMI cable plugged-out\n");

		return 0;

	}