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

Message ID 20220503065201.51818-4-krzysztof.kozlowski@linaro.org
State New
Headers show
Series dmaengine/ARM: ti/am33xx: use proper 'dma-channels/requests' properties | expand

Commit Message

Krzysztof Kozlowski May 3, 2022, 6:51 a.m. UTC 
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@linaro.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
---
 drivers/dma/ti/cppi41.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

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;