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| author | Takashi Iwai <tiwai@suse.de> | 2013-10-25 11:43:47 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-10-25 11:43:47 +0200 |
| commit | 6913a9dbf18f08e3577695032da15812bda92b66 (patch) | |
| tree | 05ca8620b11f2898022a7fd8a00f1f8566161428 /drivers/spi/spi-pxa2xx.c | |
| parent | ALSA: hda - hdmi: Re-setup pin and infoframe on plug-in on all codecs (diff) | |
| parent | Merge remote-tracking branch 'asoc/topic/wm8962' into asoc-next (diff) | |
| download | linux-6913a9dbf18f08e3577695032da15812bda92b66.tar.xz linux-6913a9dbf18f08e3577695032da15812bda92b66.zip | |
Merge tag 'asoc-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v3.13
- Further work on the dmaengine helpers, including support for
configuring the parameters for DMA by reading the capabilities of the
DMA controller which removes some guesswork and magic numbers fromm
drivers.
- A refresh of the documentation.
- Conversions of many drivers to direct regmap API usage in order to
allow the ASoC level register I/O code to be removed, this will
hopefully be completed by v3.14.
- Support for using async register I/O in DAPM, reducing the time taken
to implement power transitions on systems that support it.
Diffstat (limited to 'drivers/spi/spi-pxa2xx.c')
| -rw-r--r-- | drivers/spi/spi-pxa2xx.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 2eb06ee0b326..c1a50674c1e3 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -546,8 +546,17 @@ static irqreturn_t ssp_int(int irq, void *dev_id) if (pm_runtime_suspended(&drv_data->pdev->dev)) return IRQ_NONE; - sccr1_reg = read_SSCR1(reg); + /* + * If the device is not yet in RPM suspended state and we get an + * interrupt that is meant for another device, check if status bits + * are all set to one. That means that the device is already + * powered off. + */ status = read_SSSR(reg); + if (status == ~0) + return IRQ_NONE; + + sccr1_reg = read_SSCR1(reg); /* Ignore possible writes if we don't need to write */ if (!(sccr1_reg & SSCR1_TIE)) |