| Message ID | 20240607-bcdma_chan_cnt-v2-1-bf1a55529d91@ti.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] dmaengine: ti: k3-udma: Fix BCHAN count with UHC and HC channels | expand |
Hello Jai, On 07/06/24 23:41, Jai Luthra wrote: > From: Vignesh Raghavendra <vigneshr@ti.com> > > Unlike other channel counts in CAPx registers, BCDMA BCHAN CNT doesn't > include UHC and HC BC channels. So include them explicitly to arrive at > total BC channel in the instance. > > Fixes: 8844898028d4 ("dmaengine: ti: k3-udma: Add support for BCDMA channel TPL handling") > Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> > Signed-off-by: Jai Luthra <j-luthra@ti.com> Tested audio on J722S platform on top of this patch. McASP in J722S-EVM uses BCDMA. Tested-by: Jayesh Choudhary <j-choudhary@ti.com> > --- > Changes in v2: > - Add all BCHANs in a single operation > - Update the Fixes tag to the commit adding TPL support > - Link to v1: https://lore.kernel.org/r/20240604-bcdma_chan_cnt-v1-1-1e8932f68dca@ti.com > --- > drivers/dma/ti/k3-udma.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c > index 6400d06588a2..df507d96660b 100644 > --- a/drivers/dma/ti/k3-udma.c > +++ b/drivers/dma/ti/k3-udma.c > @@ -4472,7 +4472,9 @@ static int udma_get_mmrs(struct platform_device *pdev, struct udma_dev *ud) > ud->rchan_cnt = UDMA_CAP2_RCHAN_CNT(cap2); > break; > case DMA_TYPE_BCDMA: > - ud->bchan_cnt = BCDMA_CAP2_BCHAN_CNT(cap2); > + ud->bchan_cnt = BCDMA_CAP2_BCHAN_CNT(cap2) + > + BCDMA_CAP3_HBCHAN_CNT(cap3) + > + BCDMA_CAP3_UBCHAN_CNT(cap3); > ud->tchan_cnt = BCDMA_CAP2_TCHAN_CNT(cap2); > ud->rchan_cnt = BCDMA_CAP2_RCHAN_CNT(cap2); > ud->rflow_cnt = ud->rchan_cnt; > > --- > base-commit: d97496ca23a2d4ee80b7302849404859d9058bcd > change-id: 20240604-bcdma_chan_cnt-bbc6c0c95259 > > Best regards, Thanks, Jayesh
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index 6400d06588a2..df507d96660b 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -4472,7 +4472,9 @@ static int udma_get_mmrs(struct platform_device *pdev, struct udma_dev *ud) ud->rchan_cnt = UDMA_CAP2_RCHAN_CNT(cap2); break; case DMA_TYPE_BCDMA: - ud->bchan_cnt = BCDMA_CAP2_BCHAN_CNT(cap2); + ud->bchan_cnt = BCDMA_CAP2_BCHAN_CNT(cap2) + + BCDMA_CAP3_HBCHAN_CNT(cap3) + + BCDMA_CAP3_UBCHAN_CNT(cap3); ud->tchan_cnt = BCDMA_CAP2_TCHAN_CNT(cap2); ud->rchan_cnt = BCDMA_CAP2_RCHAN_CNT(cap2); ud->rflow_cnt = ud->rchan_cnt;