linux-kernel - [RFC 08/10] ARM: tegra: Select ARM_DMA_USE

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Message-Id: <1403815790-8548-9-git-send-email-thierry.reding@gmail.com>
Date:	Thu, 26 Jun 2014 22:49:48 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Arnd Bergmann <arnd@...db.de>,
	Will Deacon <will.deacon@....com>,
	Joerg Roedel <joro@...tes.org>
Cc:	Cho KyongHo <pullip.cho@...sung.com>,
	Grant Grundler <grundler@...omium.org>,
	Dave Martin <Dave.Martin@....com>,
	Marc Zyngier <marc.zyngier@....com>,
	Hiroshi Doyu <hdoyu@...dia.com>,
	Olav Haugan <ohaugan@...eaurora.org>,
	Paul Walmsley <pwalmsley@...dia.com>,
	Rhyland Klein <rklein@...dia.com>,
	Allen Martin <amartin@...dia.com>, devicetree@...r.kernel.org,
	iommu@...ts.linux-foundation.org,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [RFC 08/10] ARM: tegra: Select ARM_DMA_USE_IOMMU

From: Thierry Reding <treding@...dia.com>

This enables IOMMU interoperation with the DMA mapping API so that
clients that use the DMA mapping API can seemlessly make use of an
existing IOMMU.

Signed-off-by: Thierry Reding <treding@...dia.com>
---
 arch/arm/mach-tegra/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index a52d96366919..20bc43975bde 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -2,6 +2,7 @@ menuconfig ARCH_TEGRA
 	bool "NVIDIA Tegra" if ARCH_MULTI_V7
 	select ARCH_REQUIRE_GPIOLIB
 	select ARCH_SUPPORTS_TRUSTED_FOUNDATIONS
+	select ARM_DMA_USE_IOMMU
 	select ARM_GIC
 	select CLKSRC_MMIO
 	select HAVE_ARM_SCU if SMP
-- 
2.0.0

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