diff options
Diffstat (limited to 'drivers/mailbox/bcm-pdc-mailbox.c')
| -rw-r--r-- | drivers/mailbox/bcm-pdc-mailbox.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/mailbox/bcm-pdc-mailbox.c b/drivers/mailbox/bcm-pdc-mailbox.c index 1768d3d5aa..242e7504a6 100644 --- a/drivers/mailbox/bcm-pdc-mailbox.c +++ b/drivers/mailbox/bcm-pdc-mailbox.c @@ -43,6 +43,7 @@ #include <linux/dma-direction.h> #include <linux/dma-mapping.h> #include <linux/dmapool.h> +#include <linux/workqueue.h> #define PDC_SUCCESS 0 @@ -293,8 +294,8 @@ struct pdc_state { unsigned int pdc_irq; - /* tasklet for deferred processing after DMA rx interrupt */ - struct tasklet_struct rx_tasklet; + /* work for deferred processing after DMA rx interrupt */ + struct work_struct rx_work; /* Number of bytes of receive status prior to each rx frame */ u32 rx_status_len; @@ -952,18 +953,18 @@ static irqreturn_t pdc_irq_handler(int irq, void *data) iowrite32(intstatus, pdcs->pdc_reg_vbase + PDC_INTSTATUS_OFFSET); /* Wakeup IRQ thread */ - tasklet_schedule(&pdcs->rx_tasklet); + queue_work(system_bh_wq, &pdcs->rx_work); return IRQ_HANDLED; } /** - * pdc_tasklet_cb() - Tasklet callback that runs the deferred processing after + * pdc_work_cb() - Work callback that runs the deferred processing after * a DMA receive interrupt. Reenables the receive interrupt. * @t: Pointer to the Altera sSGDMA channel structure */ -static void pdc_tasklet_cb(struct tasklet_struct *t) +static void pdc_work_cb(struct work_struct *t) { - struct pdc_state *pdcs = from_tasklet(pdcs, t, rx_tasklet); + struct pdc_state *pdcs = from_work(pdcs, t, rx_work); pdc_receive(pdcs); @@ -1577,8 +1578,8 @@ static int pdc_probe(struct platform_device *pdev) pdc_hw_init(pdcs); - /* Init tasklet for deferred DMA rx processing */ - tasklet_setup(&pdcs->rx_tasklet, pdc_tasklet_cb); + /* Init work for deferred DMA rx processing */ + INIT_WORK(&pdcs->rx_work, pdc_work_cb); err = pdc_interrupts_init(pdcs); if (err) @@ -1595,7 +1596,7 @@ static int pdc_probe(struct platform_device *pdev) return PDC_SUCCESS; cleanup_buf_pool: - tasklet_kill(&pdcs->rx_tasklet); + cancel_work_sync(&pdcs->rx_work); dma_pool_destroy(pdcs->rx_buf_pool); cleanup_ring_pool: @@ -1611,7 +1612,7 @@ static void pdc_remove(struct platform_device *pdev) pdc_free_debugfs(); - tasklet_kill(&pdcs->rx_tasklet); + cancel_work_sync(&pdcs->rx_work); pdc_hw_disable(pdcs); |