34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From 9b5c2f40b7534b5cd45abc9eaa42f388f66d6c99 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Tue, 29 Jan 2019 16:13:25 +0000
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Subject: [PATCH] staging: vchiq_arm: Set up dma ranges on child
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devices
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The VCHIQ driver now loads the audio, camera, codec, and vc-sm
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drivers as platform drivers. However they were not being given
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the correct DMA configuration.
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Call of_dma_configure with the parent (VCHIQ) parameters to be
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inherited by the child.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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.../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
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+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
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@@ -1790,6 +1790,12 @@ vchiq_register_child(struct platform_dev
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child = NULL;
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}
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+ /*
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+ * We want the dma-ranges etc to be copied from the parent VCHIQ device
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+ * to be passed on to the children too.
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+ */
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+ of_dma_configure(&new_dev->dev, pdev->dev.of_node, true);
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+
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return child;
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}
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