From mboxrd@z Thu Jan 1 00:00:00 1970 From: contact@paulk.fr (Paul Kocialkowski) Date: Tue, 11 Jul 2017 11:50:09 +0300 Subject: [PATCH] ARM: tegra: Register host1x node with iommu binding on tegra124 In-Reply-To: <20170709163614.6746-1-contact@paulk.fr> References: <20170709163614.6746-1-contact@paulk.fr> Message-ID: <1499763009.1340.11.camel@paulk.fr> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sun, 2017-07-09 at 19:36 +0300, Paul Kocialkowski wrote: > 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. Fixes: 404bfb78daf3 ("gpu: host1x: Add IOMMU support") > 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>; -- Paul Kocialkowski, developer of free digital technology and hardware support Website: https://www.paulk.fr/ Coding blog: https://code.paulk.fr/ Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/