diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0361-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0361-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0361-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch b/target/linux/bcm27xx/patches-5.4/950-0361-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch new file mode 100644 index 0000000000..0a6660b893 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0361-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch @@ -0,0 +1,33 @@ +From a9b691174273348a6818213b9f008ae555e1c98c Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.org> +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 <dave.stevenson@raspberrypi.org> +--- + .../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; + } + |