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Message-Id: <1500863835-32877-1-git-send-email-xxm@rock-chips.com>
Date: Mon, 24 Jul 2017 10:37:13 +0800
From: Simon Xue <xxm@...k-chips.com>
To: Joerg Roedel <joro@...tes.org>, Heiko Stuebner <heiko@...ech.de>
Cc: linux-rockchip@...ts.infradead.org,
iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
Simon Xue <xxm@...k-chips.com>
Subject: [PATCH V3 1/3] Docs: dt: rockchip: add rockchip,disable-mmu-reset property
Add rockchip,disable-mmu-reset property to disable some mmu
reset operation
Signed-off-by: Simon Xue <xxm@...k-chips.com>
---
changes since V2:
use rockchip,disable-mmu-reset instead of rk-iommu,disable-reset-quirk
Documentation/devicetree/bindings/iommu/rockchip,iommu.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
index 9a55ac3..2098f77 100644
--- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
+++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
@@ -15,6 +15,11 @@ Required properties:
to associate with its master device. See:
Documentation/devicetree/bindings/iommu/iommu.txt
+Optional properties:
+- rockchip,disable-mmu-reset : Don't use the mmu reset operation.
+ Some mmu instances may produce unexpected results
+ when the reset operation is used.
+
Example:
vopl_mmu: iommu@...40300 {
--
1.9.1
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