+#ifdef CONFIG_BRCMFMAC_SDIO_OOB
+static irqreturn_t brcmf_sdio_irqhandler(int irq, void *dev_id)
+{
+ struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(dev_id);
+
+ brcmf_dbg(INTR, "oob intr triggered\n");
+
+ /*
+ * out-of-band interrupt is level-triggered which won't
+ * be cleared until dpc
+ */
+ if (sdiodev->irq_en) {
+ disable_irq_nosync(irq);
+ sdiodev->irq_en = false;
+ }
+
+ brcmf_sdbrcm_isr(sdiodev->bus);
+
+ return IRQ_HANDLED;
+}
+
+int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev)
+{
+ int ret = 0;
+ u8 data;
+ unsigned long flags;
+
+ brcmf_dbg(TRACE, "Entering\n");
+
+ brcmf_dbg(ERROR, "requesting irq %d\n", sdiodev->irq);
+ ret = request_irq(sdiodev->irq, brcmf_sdio_irqhandler,
+ sdiodev->irq_flags, "brcmf_oob_intr",
+ &sdiodev->func[1]->card->dev);
+ if (ret != 0)
+ return ret;
+ spin_lock_init(&sdiodev->irq_en_lock);
+ spin_lock_irqsave(&sdiodev->irq_en_lock, flags);
+ sdiodev->irq_en = true;
+ spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags);
+
+ ret = enable_irq_wake(sdiodev->irq);
+ if (ret != 0)
+ return ret;
+ sdiodev->irq_wake = true;
+
+ /* must configure SDIO_CCCR_IENx to enable irq */
+ data = brcmf_sdcard_cfg_read(sdiodev, SDIO_FUNC_0,
+ SDIO_CCCR_IENx, &ret);
+ data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1;
+ brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_0, SDIO_CCCR_IENx,
+ data, &ret);
+
+ /* redirect, configure ane enable io for interrupt signal */
+ data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE;
+ if (sdiodev->irq_flags | IRQF_TRIGGER_HIGH)
+ data |= SDIO_SEPINT_ACT_HI;
+ brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_0, SDIO_CCCR_BRCM_SEPINT,
+ data, &ret);
+
+ return 0;
+}
+
+int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev)
+{
+ brcmf_dbg(TRACE, "Entering\n");
+
+ brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_0, SDIO_CCCR_BRCM_SEPINT,
+ 0, NULL);
+ brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_0, SDIO_CCCR_IENx, 0, NULL);
+
+ if (sdiodev->irq_wake) {
+ disable_irq_wake(sdiodev->irq);
+ sdiodev->irq_wake = false;
+ }
+ free_irq(sdiodev->irq, &sdiodev->func[1]->card->dev);
+ sdiodev->irq_en = false;
+
+ return 0;
+}
+#else /* CONFIG_BRCMFMAC_SDIO_OOB */
+static void brcmf_sdio_irqhandler(struct sdio_func *func)