Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/intel8x0.c | 178 +++++++++++++++++++++---------------------
sound/pci/intel8x0m.c | 8 +-
2 files changed, 89 insertions(+), 97 deletions(-)
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 9e6a5065ffbf..3b53c5e63c29 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -690,52 +690,51 @@ static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ich
static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
{
unsigned long port = ichdev->reg_offset;
- unsigned long flags;
int status, civ, i, step;
int ack = 0;
if (!(ichdev->prepared || chip->in_measurement) || ichdev->suspended)
return;
- spin_lock_irqsave(&chip->reg_lock, flags);
- status = igetbyte(chip, port + ichdev->roff_sr);
- civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
- if (!(status & ICH_BCIS)) {
- step = 0;
- } else if (civ == ichdev->civ) {
- step = 1;
- ichdev->civ++;
- ichdev->civ &= ICH_REG_LVI_MASK;
- } else {
- step = civ - ichdev->civ;
- if (step < 0)
- step += ICH_REG_LVI_MASK + 1;
- ichdev->civ = civ;
- }
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ status = igetbyte(chip, port + ichdev->roff_sr);
+ civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
+ if (!(status & ICH_BCIS)) {
+ step = 0;
+ } else if (civ == ichdev->civ) {
+ step = 1;
+ ichdev->civ++;
+ ichdev->civ &= ICH_REG_LVI_MASK;
+ } else {
+ step = civ - ichdev->civ;
+ if (step < 0)
+ step += ICH_REG_LVI_MASK + 1;
+ ichdev->civ = civ;
+ }
- ichdev->position += step * ichdev->fragsize1;
- if (! chip->in_measurement)
- ichdev->position %= ichdev->size;
- ichdev->lvi += step;
- ichdev->lvi &= ICH_REG_LVI_MASK;
- iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
- for (i = 0; i < step; i++) {
- ichdev->lvi_frag++;
- ichdev->lvi_frag %= ichdev->frags;
- ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
+ ichdev->position += step * ichdev->fragsize1;
+ if (! chip->in_measurement)
+ ichdev->position %= ichdev->size;
+ ichdev->lvi += step;
+ ichdev->lvi &= ICH_REG_LVI_MASK;
+ iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
+ for (i = 0; i < step; i++) {
+ ichdev->lvi_frag++;
+ ichdev->lvi_frag %= ichdev->frags;
+ ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
#if 0
- dev_dbg(chip->card->dev,
- "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
- ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
- ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
- inl(port + 4), inb(port + ICH_REG_OFF_CR));
+ dev_dbg(chip->card->dev,
+ "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
+ ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
+ ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
+ inl(port + 4), inb(port + ICH_REG_OFF_CR));
#endif
- if (--ichdev->ack == 0) {
- ichdev->ack = ichdev->ack_reload;
- ack = 1;
+ if (--ichdev->ack == 0) {
+ ichdev->ack = ichdev->ack_reload;
+ ack = 1;
+ }
}
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
if (ack && ichdev->substream) {
snd_pcm_period_elapsed(ichdev->substream);
}
@@ -917,7 +916,7 @@ static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
unsigned int cnt;
int dbl = runtime->rate > 48000;
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
switch (chip->device_type) {
case DEVICE_ALI:
cnt = igetdword(chip, ICHREG(ALI_SCR));
@@ -963,7 +962,6 @@ static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
iputdword(chip, ICHREG(GLOB_CNT), cnt);
break;
}
- spin_unlock_irq(&chip->reg_lock);
}
static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
@@ -993,7 +991,7 @@ static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *subs
int civ, timeout = 10;
unsigned int position;
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
do {
civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
@@ -1033,7 +1031,6 @@ static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *subs
}
}
ichdev->last_pos = ptr;
- spin_unlock(&chip->reg_lock);
if (ptr >= ichdev->size)
return 0;
return bytes_to_frames(substream->runtime, ptr);
@@ -1235,12 +1232,12 @@ static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substrea
struct intel8x0 *chip = snd_pcm_substream_chip(substream);
unsigned int val;
- spin_lock_irq(&chip->reg_lock);
- val = igetdword(chip, ICHREG(ALI_INTERFACECR));
- val |= ICH_ALI_IF_AC97SP;
- iputdword(chip, ICHREG(ALI_INTERFACECR), val);
- /* also needs to set ALI_SC_CODEC_SPDF correctly */
- spin_unlock_irq(&chip->reg_lock);
+ scoped_guard(spinlock_irq, &chip->reg_lock) {
+ val = igetdword(chip, ICHREG(ALI_INTERFACECR));
+ val |= ICH_ALI_IF_AC97SP;
+ iputdword(chip, ICHREG(ALI_INTERFACECR), val);
+ /* also needs to set ALI_SC_CODEC_SPDF correctly */
+ }
return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
}
@@ -1251,11 +1248,10 @@ static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substre
unsigned int val;
chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
val = igetdword(chip, ICHREG(ALI_INTERFACECR));
val &= ~ICH_ALI_IF_AC97SP;
iputdword(chip, ICHREG(ALI_INTERFACECR), val);
- spin_unlock_irq(&chip->reg_lock);
return 0;
}
@@ -2662,53 +2658,53 @@ static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
}
snd_intel8x0_setup_periods(chip, ichdev);
port = ichdev->reg_offset;
- spin_lock_irq(&chip->reg_lock);
- chip->in_measurement = 1;
- /* trigger */
- if (chip->device_type != DEVICE_ALI)
- iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
- else {
- iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
- iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
- }
- start_time = ktime_get();
- spin_unlock_irq(&chip->reg_lock);
- msleep(50);
- spin_lock_irq(&chip->reg_lock);
- /* check the position */
- do {
- civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
- pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
- if (pos1 == 0) {
- udelay(10);
- continue;
+ scoped_guard(spinlock_irq, &chip->reg_lock) {
+ chip->in_measurement = 1;
+ /* trigger */
+ if (chip->device_type != DEVICE_ALI)
+ iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
+ else {
+ iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
+ iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
}
- if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
- pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
- break;
- } while (timeout--);
- if (pos1 == 0) { /* oops, this value is not reliable */
- pos = 0;
- } else {
- pos = ichdev->fragsize1;
- pos -= pos1 << ichdev->pos_shift;
- pos += ichdev->position;
+ start_time = ktime_get();
}
- chip->in_measurement = 0;
- stop_time = ktime_get();
- /* stop */
- if (chip->device_type == DEVICE_ALI) {
- iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
- iputbyte(chip, port + ICH_REG_OFF_CR, 0);
- while (igetbyte(chip, port + ICH_REG_OFF_CR))
- ;
- } else {
- iputbyte(chip, port + ICH_REG_OFF_CR, 0);
- while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
- ;
+ msleep(50);
+ scoped_guard(spinlock_irq, &chip->reg_lock) {
+ /* check the position */
+ do {
+ civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
+ pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
+ if (pos1 == 0) {
+ udelay(10);
+ continue;
+ }
+ if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
+ pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
+ break;
+ } while (timeout--);
+ if (pos1 == 0) { /* oops, this value is not reliable */
+ pos = 0;
+ } else {
+ pos = ichdev->fragsize1;
+ pos -= pos1 << ichdev->pos_shift;
+ pos += ichdev->position;
+ }
+ chip->in_measurement = 0;
+ stop_time = ktime_get();
+ /* stop */
+ if (chip->device_type == DEVICE_ALI) {
+ iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
+ iputbyte(chip, port + ICH_REG_OFF_CR, 0);
+ while (igetbyte(chip, port + ICH_REG_OFF_CR))
+ ;
+ } else {
+ iputbyte(chip, port + ICH_REG_OFF_CR, 0);
+ while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
+ ;
+ }
+ iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
}
- iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
- spin_unlock_irq(&chip->reg_lock);
if (pos == 0) {
dev_err(chip->card->dev,
diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c
index 9e5988583abe..84e1b7ea34e2 100644
--- a/sound/pci/intel8x0m.c
+++ b/sound/pci/intel8x0m.c
@@ -471,16 +471,13 @@ static irqreturn_t snd_intel8x0m_interrupt(int irq, void *dev_id)
unsigned int status;
unsigned int i;
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
status = igetdword(chip, chip->int_sta_reg);
- if (status == 0xffffffff) { /* we are not yet resumed */
- spin_unlock(&chip->reg_lock);
+ if (status == 0xffffffff) /* we are not yet resumed */
return IRQ_NONE;
- }
if ((status & chip->int_sta_mask) == 0) {
if (status)
iputdword(chip, chip->int_sta_reg, status);
- spin_unlock(&chip->reg_lock);
return IRQ_NONE;
}
@@ -492,7 +489,6 @@ static irqreturn_t snd_intel8x0m_interrupt(int irq, void *dev_id)
/* ack them */
iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
- spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
--
2.50.1
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