From a9b691174273348a6818213b9f008ae555e1c98c Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Tue, 29 Jan 2019 16:13:25 +0000 Subject: [PATCH] staging: vchiq_arm: Set up dma ranges on child devices The VCHIQ driver now loads the audio, camera, codec, and vc-sm drivers as platform drivers. However they were not being given the correct DMA configuration. Call of_dma_configure with the parent (VCHIQ) parameters to be inherited by the child. Signed-off-by: Dave Stevenson --- .../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -3195,6 +3195,12 @@ vchiq_register_child(struct platform_dev child = NULL; } + /* + * We want the dma-ranges etc to be copied from the parent VCHIQ device + * to be passed on to the children too. + */ + of_dma_configure(&new_dev->dev, pdev->dev.of_node, true); + return child; }