diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-10-11 07:39:37 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-11 07:39:37 +0200 |
| commit | ec0ad3d01f99d5e5b56a99a58f7003b99250dc65 (patch) | |
| tree | 85066cbea1cf8da6d099019adefaca90aae39234 /drivers/spi/spi-pxa2xx.c | |
| parent | 3354781a2184380046c8dd19144628d3c33991e6 (diff) | |
| parent | 3f0116c3238a96bc18ad4b4acefe4e7be32fa861 (diff) | |
Merge branch 'core/urgent' into sched/core
Merge in asm goto fix, to be able to apply the asm/rmwcc.h fix.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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 2eb06ee0b32..c1a50674c1e 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)) |