From patchwork Sun Jul 9 16:36:14 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: ARM: tegra: Register host1x node with iommu binding on tegra124 From: Paul Kocialkowski X-Patchwork-Id: 9831825 Message-Id: <20170709163614.6746-1-contact@paulk.fr> To: linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Thierry Reding , Stephen Warren , Mikko Perttunen , Paul Kocialkowski , Jonathan Hunter Date: Sun, 9 Jul 2017 19:36:14 +0300 This registers the host1x node with the SMMU (as HC swgroup) to allow the host1x code to attach to it. It avoid failing the probe sequence, which resulted in the tegra drm driver not probing and thus nothing being displayed on-screen. Signed-off-by: Paul Kocialkowski --- arch/arm/boot/dts/tegra124.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi index 187a36c6d0fc..b3b89befffeb 100644 --- a/arch/arm/boot/dts/tegra124.dtsi +++ b/arch/arm/boot/dts/tegra124.dtsi @@ -85,6 +85,7 @@ clocks = <&tegra_car TEGRA124_CLK_HOST1X>; resets = <&tegra_car 28>; reset-names = "host1x"; + iommus = <&mc TEGRA_SWGROUP_HC>; #address-cells = <2>; #size-cells = <2>;