diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-11-08 10:17:15 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-08 10:17:15 +0100 |
| commit | 8a103df440afea30c91ebd42e61dc644e647f4bd (patch) | |
| tree | 2cfa99e9c6e1e138e1404bce4294e46cb0034cce /sound/soc/codecs/rt5514-spi.c | |
| parent | sched/sysctl: Fix attributes of some extern declarations (diff) | |
| parent | drivers/ide-cd: Handle missing driver data during status check gracefully (diff) | |
| download | linux-8a103df440afea30c91ebd42e61dc644e647f4bd.tar.xz linux-8a103df440afea30c91ebd42e61dc644e647f4bd.zip | |
Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5514-spi.c')
| -rw-r--r-- | sound/soc/codecs/rt5514-spi.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index ed6e5373916c..12f2ecf3a4fe 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -145,9 +145,8 @@ done: mutex_unlock(&rt5514_dsp->dma_lock); } -static irqreturn_t rt5514_spi_irq(int irq, void *data) +static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) { - struct rt5514_dsp *rt5514_dsp = data; u8 buf[8]; rt5514_dsp->get_size = 0; @@ -180,6 +179,13 @@ static irqreturn_t rt5514_spi_irq(int irq, void *data) if (rt5514_dsp->buf_base && rt5514_dsp->buf_limit && rt5514_dsp->buf_rp && rt5514_dsp->buf_size) schedule_delayed_work(&rt5514_dsp->copy_work, 0); +} + +static irqreturn_t rt5514_spi_irq(int irq, void *data) +{ + struct rt5514_dsp *rt5514_dsp = data; + + rt5514_schedule_copy(rt5514_dsp); return IRQ_HANDLED; } @@ -199,12 +205,19 @@ static int rt5514_spi_hw_params(struct snd_pcm_substream *substream, struct rt5514_dsp *rt5514_dsp = snd_soc_platform_get_drvdata(rtd->platform); int ret; + u8 buf[8]; mutex_lock(&rt5514_dsp->dma_lock); ret = snd_pcm_lib_alloc_vmalloc_buffer(substream, params_buffer_bytes(hw_params)); rt5514_dsp->substream = substream; rt5514_dsp->dma_offset = 0; + + /* Read IRQ status and schedule copy accordingly. */ + rt5514_spi_burst_read(RT5514_IRQ_CTRL, (u8 *)&buf, sizeof(buf)); + if (buf[0] & RT5514_IRQ_STATUS_BIT) + rt5514_schedule_copy(rt5514_dsp); + mutex_unlock(&rt5514_dsp->dma_lock); return ret; |