linux-kernel - [PATCH v2 3/3] arm64: tegra: Add NVJPG node for Tegra210 platforms

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Message-Id: <20250611-diogo-nvjpg-v2-3-01f8c76ea90f@tecnico.ulisboa.pt>
Date: Wed, 11 Jun 2025 13:18:03 +0100
From: Diogo Ivo <diogo.ivo@...nico.ulisboa.pt>
To: Thierry Reding <thierry.reding@...il.com>, 
 Mikko Perttunen <mperttunen@...dia.com>, David Airlie <airlied@...il.com>, 
 Simona Vetter <simona@...ll.ch>, Jonathan Hunter <jonathanh@...dia.com>, 
 Philipp Zabel <p.zabel@...gutronix.de>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 linux-tegra@...r.kernel.org, devicetree@...r.kernel.org, 
 Diogo Ivo <diogo.ivo@...nico.ulisboa.pt>
Subject: [PATCH v2 3/3] arm64: tegra: Add NVJPG node for Tegra210 platforms

The Tegra X1 chip contains a NVJPG accelerator capable of
encoding/decoding JPEG files in hardware. Complete its DT node
and enable it.

Reviewed-by: Mikko Perttunen <mperttunen@...dia.com>
Signed-off-by: Diogo Ivo <diogo.ivo@...nico.ulisboa.pt>

---
v1->v2:
- Collect R-b from Mikko
- Explicitly mention Tegra210 in commit subject
- Be more precise in commit message about filling in an already existing
  DT node.
---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 6f8cdf012f0f12a16716e9d479c46b330bbb7dda..087f38256fd40f57c4685e907f9682eb49ee31db 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -253,7 +253,13 @@ vic@...40000 {
 		nvjpg@...80000 {
 			compatible = "nvidia,tegra210-nvjpg";
 			reg = <0x0 0x54380000 0x0 0x00040000>;
-			status = "disabled";
+			clocks = <&tegra_car TEGRA210_CLK_NVJPG>;
+			clock-names = "nvjpg";
+			resets = <&tegra_car 195>;
+			reset-names = "nvjpg";
+
+			iommus = <&mc TEGRA_SWGROUP_NVJPG>;
+			power-domains = <&pd_nvjpg>;
 		};
 
 		dsib: dsi@...00000 {

-- 
2.49.0