bcm27xx: update patches from RPi foundation
[openwrt/staging/luka.git] / target / linux / bcm27xx / patches-5.4 / 950-0362-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch
diff --git a/target/linux/bcm27xx/patches-5.4/950-0362-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch b/target/linux/bcm27xx/patches-5.4/950-0362-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch
deleted file mode 100644 (file)
index eb35a81..0000000
+++ /dev/null
@@ -1,51 +0,0 @@
-From 6aa74a52e014952b1a144def670a03a7deb0e112 Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.org>
-Date: Tue, 18 Jun 2019 12:15:50 +0100
-Subject: [PATCH] staging: vchiq: Use the old dma controller for OF
- config on platform devices
-
-vchiq on Pi4 is no longer under the soc node, therefore it
-doesn't get the dma-ranges for the VPU.
-
-Switch to using the configuration of the old dma controller as
-that will set the dma-ranges correctly.
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
----
- .../interface/vchiq_arm/vchiq_arm.c             | 17 ++++++++++++++---
- 1 file changed, 14 insertions(+), 3 deletions(-)
-
---- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
-+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
-@@ -3181,6 +3181,7 @@ vchiq_register_child(struct platform_dev
- {
-       struct platform_device_info pdevinfo;
-       struct platform_device *child;
-+      struct device_node *np;
-       memset(&pdevinfo, 0, sizeof(pdevinfo));
-@@ -3196,10 +3197,20 @@ vchiq_register_child(struct platform_dev
-       }
-       /*
--       * We want the dma-ranges etc to be copied from the parent VCHIQ device
--       * to be passed on to the children too.
-+       * We want the dma-ranges etc to be copied from a device with the
-+       * correct dma-ranges for the VPU.
-+       * VCHIQ on Pi4 is now under scb which doesn't get those dma-ranges.
-+       * Take the "dma" node as going to be suitable as it sees the world
-+       * through the same eyes as the VPU.
-        */
--      of_dma_configure(&new_dev->dev, pdev->dev.of_node, true);
-+      np = of_find_node_by_path("dma");
-+      if (!np)
-+              np = pdev->dev.of_node;
-+
-+      of_dma_configure(&child->dev, np, true);
-+
-+      if (np != pdev->dev.of_node)
-+              of_node_put(np);
-       return child;
- }