bcm27xx: update to latest patches from RPi foundation

[openwrt/openwrt.git] / target / linux / bcm27xx / patches-5.4 / 950-0357-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch

diff --git a/target/linux/bcm27xx/patches-5.4/950-0357-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch b/target/linux/bcm27xx/patches-5.4/950-0357-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch
new file mode 100644 (file)
index 0000000..0a6660b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0357-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;
+ }
+