[PATCH v3 3/6] dmaengine: ti: deprecate '#dma-channels'

From: Krzysztof Kozlowski
Date: Tue May 03 2022 - 02:54:06 EST


The generic property, used in most of the drivers and defined in generic
dma-common DT bindings, is 'dma-channels'. Switch to new property while
keeping backward compatibility.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Reviewed-by: Tony Lindgren <tony@xxxxxxxxxxx>
---
drivers/dma/ti/cppi41.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/ti/cppi41.c b/drivers/dma/ti/cppi41.c
index 062bd9bd4de0..695915dba707 100644
--- a/drivers/dma/ti/cppi41.c
+++ b/drivers/dma/ti/cppi41.c
@@ -1105,8 +1105,12 @@ static int cppi41_dma_probe(struct platform_device *pdev)
cdd->qmgr_num_pend = glue_info->qmgr_num_pend;
cdd->first_completion_queue = glue_info->first_completion_queue;

+ /* Parse new and deprecated dma-channels properties */
ret = of_property_read_u32(dev->of_node,
- "#dma-channels", &cdd->n_chans);
+ "dma-channels", &cdd->n_chans);
+ if (ret)
+ ret = of_property_read_u32(dev->of_node,
+ "#dma-channels", &cdd->n_chans);
if (ret)
goto err_get_n_chans;

--
2.32.0