Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934037AbcCODAD (ORCPT ); Mon, 14 Mar 2016 23:00:03 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:18333 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933654AbcCOC7C (ORCPT ); Mon, 14 Mar 2016 22:59:02 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Mon, 14 Mar 2016 19:57:34 -0700 From: Alexandre Courbot To: Stephen Warren , Thierry Reding CC: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, gnurou@gmail.com, Alexandre Courbot Subject: [PATCH v2 3/5] dt-bindings: Add documentation for GM20B GPU Date: Tue, 15 Mar 2016 11:58:42 +0900 Message-ID: <1458010724-10945-4-git-send-email-acourbot@nvidia.com> X-Mailer: git-send-email 2.7.2 In-Reply-To: <1458010724-10945-1-git-send-email-acourbot@nvidia.com> References: <1458010724-10945-1-git-send-email-acourbot@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2173 Lines: 68 GM20B's definition is mostly similar to GK20A's, but requires an additional clock. Signed-off-by: Alexandre Courbot --- .../devicetree/bindings/gpu/nvidia,gk20a.txt | 27 ++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt index 1e3748337319..d9ad6b87fbbc 100644 --- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt +++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt @@ -1,9 +1,10 @@ -NVIDIA GK20A Graphics Processing Unit +NVIDIA Tegra Graphics Processing Units Required properties: - compatible: "nvidia," Currently recognized values: - nvidia,gk20a + - nvidia,gm20b - reg: Physical base address and length of the controller's registers. Must contain two entries: - first entry for bar0 @@ -19,6 +20,9 @@ Required properties: - clock-names: Must include the following entries: - gpu - pwr +If the compatible string is "nvidia,gm20b", then the following clock +is also required: + - ref - resets: Must contain an entry for each entry in reset-names. See ../reset/reset.txt for details. - reset-names: Must include the following entries: @@ -27,7 +31,7 @@ Required properties: Optional properties: - iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details. -Example: +Example for GK20A: gpu@0,57000000 { compatible = "nvidia,gk20a"; @@ -45,3 +49,22 @@ Example: iommus = <&mc TEGRA_SWGROUP_GPU>; status = "disabled"; }; + +Example for GM20B: + + gpu@0,57000000 { + compatible = "nvidia,gm20b"; + reg = <0x0 0x57000000 0x0 0x01000000>, + <0x0 0x58000000 0x0 0x01000000>; + interrupts = , + ; + interrupt-names = "stall", "nonstall"; + clocks = <&tegra_car TEGRA210_CLK_GPU>, + <&tegra_car TEGRA210_CLK_PLL_P_OUT5>, + <&tegra_car TEGRA210_CLK_PLL_G_REF>; + clock-names = "gpu", "pwr", "ref"; + resets = <&tegra_car 184>; + reset-names = "gpu"; + iommus = <&mc TEGRA_SWGROUP_GPU>; + status = "disabled"; + }; -- 2.7.2