diff options
Diffstat (limited to 'arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c')
| -rw-r--r-- | arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c index 48038aaedbd3..6d1dd6e87478 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c @@ -59,6 +59,8 @@ static struct mpc52xx_lpbfifo lpbfifo; /** * mpc52xx_lpbfifo_kick - Trigger the next block of data to be transferred + * + * @req: Pointer to request structure */ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req) { @@ -178,6 +180,8 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req) /** * mpc52xx_lpbfifo_irq - IRQ handler for LPB FIFO + * @irq: IRQ number to be handled + * @dev_id: device ID cookie * * On transmit, the dma completion irq triggers before the fifo completion * triggers. Handle the dma completion here instead of the LPB FIFO Bestcomm @@ -216,6 +220,8 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req) * or nested spinlock condition. The out path is non-trivial, so * extra fiddling is done to make sure all paths lead to the same * outbound code. + * + * Return: irqreturn code (%IRQ_HANDLED) */ static irqreturn_t mpc52xx_lpbfifo_irq(int irq, void *dev_id) { @@ -320,8 +326,12 @@ static irqreturn_t mpc52xx_lpbfifo_irq(int irq, void *dev_id) /** * mpc52xx_lpbfifo_bcom_irq - IRQ handler for LPB FIFO Bestcomm task + * @irq: IRQ number to be handled + * @dev_id: device ID cookie * * Only used when receiving data. + * + * Return: irqreturn code (%IRQ_HANDLED) */ static irqreturn_t mpc52xx_lpbfifo_bcom_irq(int irq, void *dev_id) { @@ -372,7 +382,7 @@ static irqreturn_t mpc52xx_lpbfifo_bcom_irq(int irq, void *dev_id) } /** - * mpc52xx_lpbfifo_bcom_poll - Poll for DMA completion + * mpc52xx_lpbfifo_poll - Poll for DMA completion */ void mpc52xx_lpbfifo_poll(void) { @@ -393,6 +403,8 @@ EXPORT_SYMBOL(mpc52xx_lpbfifo_poll); /** * mpc52xx_lpbfifo_submit - Submit an LPB FIFO transfer request. * @req: Pointer to request structure + * + * Return: %0 on success, -errno code on error */ int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req) { @@ -531,6 +543,7 @@ static int mpc52xx_lpbfifo_probe(struct platform_device *op) err_bcom_rx_irq: bcom_gen_bd_rx_release(lpbfifo.bcom_rx_task); err_bcom_rx: + free_irq(lpbfifo.irq, &lpbfifo); err_irq: iounmap(lpbfifo.regs); lpbfifo.regs = NULL; |