diff options
| -rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c index eae0ca5cb855..b9199945d6fe 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c @@ -89,13 +89,17 @@ static void sun6i_csi_v4l2_cleanup(struct sun6i_csi_device *csi_dev) static irqreturn_t sun6i_csi_interrupt(int irq, void *private) { struct sun6i_csi_device *csi_dev = private; + bool capture_streaming = csi_dev->capture.state.streaming; struct regmap *regmap = csi_dev->regmap; - u32 status; + u32 status = 0, enable = 0; regmap_read(regmap, SUN6I_CSI_CH_INT_STA_REG, &status); + regmap_read(regmap, SUN6I_CSI_CH_INT_EN_REG, &enable); - if (!(status & 0xFF)) + if (!status) return IRQ_NONE; + else if (!(status & enable) || !capture_streaming) + goto complete; if ((status & SUN6I_CSI_CH_INT_STA_FIFO0_OF) || (status & SUN6I_CSI_CH_INT_STA_FIFO1_OF) || @@ -116,6 +120,7 @@ static irqreturn_t sun6i_csi_interrupt(int irq, void *private) if (status & SUN6I_CSI_CH_INT_STA_VS) sun6i_csi_capture_sync(csi_dev); +complete: regmap_write(regmap, SUN6I_CSI_CH_INT_STA_REG, status); return IRQ_HANDLED; |