From: Youlin Wang <wwx575...@notesmail.huawei.com>
There is an new "hisi-pcm-asp-dma-1.0" device added in
"arch/arm64/boot/dts/hisilicon/hi3660.dtsi".
So we have to add a matching id in the driver file:
"{ .compatible = "hisilicon,hisi-pcm-asp-dma-1.0", }"
And also hisi-pcm-asp dma device needs no setting to the clock.
So we skip this by "if" sentence on id string matching:
"if (strcasecmp((of_id->compatible), (k3_pdma_dt_ids[0].compatible)) == 0)"
After above this driver will support both k3 and hisi_asp dma hardware.
Signed-off-by: Youlin Wang <wwx575...@notesmail.huawei.com>
Signed-off-by: Tanglei Han <hantang...@huawei.com>
Cc: Dan Williams <dan.j.willi...@intel.com>
Cc: Vinod Koul <vk...@kernel.org>
---
drivers/dma/k3dma.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index fdec2b6..10eecc2 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -792,6 +792,7 @@ static int k3_dma_transfer_resume(struct dma_chan *chan)
static const struct of_device_id k3_pdma_dt_ids[] = {
{ .compatible = "hisilicon,k3-dma-1.0", },
+ { .compatible = "hisilicon,hisi-pcm-asp-dma-1.0", },
{}
};
MODULE_DEVICE_TABLE(of, k3_pdma_dt_ids);
@@ -835,10 +836,12 @@ static int k3_dma_probe(struct platform_device *op)
"dma-requests", &d->dma_requests);
}
- d->clk = devm_clk_get(&op->dev, NULL);
- if (IS_ERR(d->clk)) {
- dev_err(&op->dev, "no dma clk\n");
- return PTR_ERR(d->clk);
+ if (strcasecmp((of_id->compatible), (k3_pdma_dt_ids[0].compatible)) ==
0) {
+ d->clk = devm_clk_get(&op->dev, NULL);
+ if (IS_ERR(d->clk)) {
+ dev_err(&op->dev, "no dma clk\n");
+ return PTR_ERR(d->clk);
+ }
}
irq = platform_get_irq(op, 0);
--
1.9.1
