Messages in this thread | | | Date | Mon, 11 Oct 2021 16:09:29 +0200 | From | Paul Cercueil <> | Subject | Re: [PATCH] dmaengine: jz4780: Set max number of SGs per burst |
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Hi Vinod,
Le lun., août 30 2021 at 10:48:52 +0100, Paul Cercueil <paul@crapouillou.net> a écrit : > Hi, > > Le dim., août 29 2021 at 21:58:05 +0200, Artur Rojek > <contact@artur-rojek.eu> a écrit : >> Total amount of SG list entries executed in a single burst is >> limited by >> the number of available DMA descriptors. >> This information is useful for device drivers utilizing this DMA >> engine. >> >> Signed-off-by: Artur Rojek <contact@artur-rojek.eu> > > Acked-by: Paul Cercueil <paul@crapouillou.net>
Feedback on this?
Cheers, -Paul
>> --- >> drivers/dma/dma-jz4780.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c >> index ebee94dbd630..96701dedcac8 100644 >> --- a/drivers/dma/dma-jz4780.c >> +++ b/drivers/dma/dma-jz4780.c >> @@ -915,6 +915,7 @@ static int jz4780_dma_probe(struct >> platform_device *pdev) >> dd->dst_addr_widths = JZ_DMA_BUSWIDTHS; >> dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); >> dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; >> + dd->max_sg_burst = JZ_DMA_MAX_DESC; >> >> /* >> * Enable DMA controller, mark all channels as not programmable. >> -- >> 2.33.0 >> >
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