brcm2708: update to latest patches from RPi Foundation

Also removes reverted patches.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0581-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch b/target/linux/brcm2708/patches-4.19/950-0581-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch
new file mode 100644
index 0000000000..808fdaf0ca
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0581-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch
@@ -0,0 +1,51 @@
+From 65a5b304668ed6cb4568ac1a0ffbeabb28208b38 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
+@@ -3599,6 +3599,7 @@ vchiq_register_child(struct platform_dev
+ {
+ 	struct platform_device_info pdevinfo;
+ 	struct platform_device *new_dev;
++	struct device_node *np;
+ 
+ 	memset(&pdevinfo, 0, sizeof(pdevinfo));
+ 
+@@ -3612,10 +3613,20 @@ vchiq_register_child(struct platform_dev
+ 		return NULL;
+ 
+ 	/*
+-	 * 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(&new_dev->dev, np, true);
++
++	if (np != pdev->dev.of_node)
++		of_node_put(np);
+ 
+ 	return new_dev;
+ }