linux-kernel - [PATCH V3 1/3] Docs: dt: rockchip: add rockchip,disable-mmu-reset property

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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