On Tue, Feb 24, 2015 at 04:21:21PM +0200, Peter Ujfalusi wrote:
> Use the dma-requests property from DT to get the number of DMA requests.
> In case of legacy boot or failure to find the property, use the default
> 127 as number of requests.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> ---
> drivers/dma/omap-dma.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
> index 56c33e93dd24..7def31c919f4 100644
> --- a/drivers/dma/omap-dma.c
> +++ b/drivers/dma/omap-dma.c
> @@ -34,6 +34,7 @@ struct omap_dmadev {
> const struct omap_dma_reg *reg_map;
> struct omap_system_dma_plat_info *plat;
> bool legacy;
> + unsigned dma_requests;
> spinlock_t irq_lock;
> uint32_t irq_enable_mask;
> struct omap_chan *lch_map[OMAP_SDMA_CHANNELS];
> @@ -1118,7 +1119,15 @@ static int omap_dma_probe(struct platform_device *pdev)
>
> tasklet_init(&od->task, omap_dma_sched, (unsigned long)od);
>
> - for (i = 0; i < OMAP_SDMA_REQUESTS; i++) {
> + if (!pdev->dev.of_node || of_property_read_u32(pdev->dev.of_node,
> + "dma-requests",
> + &od->dma_requests)) {
> + dev_info(&pdev->dev,
> + "DMA request lines not specified, using 127\n");
> + od->dma_requests = 127;
What happened to OMAP_SDMA_REQUESTS?
If you're not going to use OMAP_SDMA_REQUESTS, then don't add it. If
you are going to use it, please also change the dev_info() line to use
that macro too.
Thanks.
--
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
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