diff options
Diffstat (limited to 'drivers/crypto/omap-aes.c')
| -rw-r--r-- | drivers/crypto/omap-aes.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index 685535e4c78..7a08a152838 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -1075,7 +1075,7 @@ static int omap_aes_probe(struct platform_device *pdev) struct omap_aes_dev *dd; struct crypto_alg *algp; struct resource res; - int err = -ENOMEM, i, j; + int err = -ENOMEM, i, j, irq = -1; u32 reg; dd = kzalloc(sizeof(struct omap_aes_dev), GFP_KERNEL); @@ -1118,8 +1118,23 @@ static int omap_aes_probe(struct platform_device *pdev) tasklet_init(&dd->queue_task, omap_aes_queue_task, (unsigned long)dd); err = omap_aes_dma_init(dd); - if (err) - goto err_dma; + if (err && AES_REG_IRQ_STATUS(dd) && AES_REG_IRQ_ENABLE(dd)) { + dd->pio_only = 1; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(dev, "can't get IRQ resource\n"); + goto err_irq; + } + + err = request_irq(irq, omap_aes_irq, 0, + dev_name(dev), dd); + if (err) { + dev_err(dev, "Unable to grab omap-aes IRQ\n"); + goto err_irq; + } + } + INIT_LIST_HEAD(&dd->list); spin_lock(&list_lock); @@ -1147,8 +1162,11 @@ err_algs: for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--) crypto_unregister_alg( &dd->pdata->algs_info[i].algs_list[j]); - omap_aes_dma_cleanup(dd); -err_dma: + if (dd->pio_only) + free_irq(irq, dd); + else + omap_aes_dma_cleanup(dd); +err_irq: tasklet_kill(&dd->done_task); tasklet_kill(&dd->queue_task); pm_runtime_disable(dev); |