From: Akhil R <akhilrajeev@nvidia.com>
To: <ldewangan@nvidia.com>, <jonathanh@nvidia.com>,
<vkoul@kernel.org>, <thierry.reding@gmail.com>,
<p.zabel@pengutronix.de>, <dmaengine@vger.kernel.org>,
<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <akhilrajeev@nvidia.com>
Subject: [PATCH v2 2/3] arm64: tegra: Add dma-channel-mask in GPCDMA node
Date: Mon, 19 Sep 2022 16:55:58 +0530 [thread overview]
Message-ID: <20220919112559.58195-3-akhilrajeev@nvidia.com> (raw)
In-Reply-To: <20220919112559.58195-1-akhilrajeev@nvidia.com>
Add dma-channel-mask property in Tegra GPCDMA device tree node.
The property would help to specify the channels to be used in
kernel and reserve few for the firmware. This was previously
achieved by limiting the channel number to 31 in the driver.
Now since we can list all 32 channels, update the interrupts
property as well to list all 32 interrupts.
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra186.dtsi | 4 +++-
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 4 +++-
arch/arm64/boot/dts/nvidia/tegra234.dtsi | 4 +++-
3 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 3580fbf99091..13a84e34e094 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -78,7 +78,8 @@
reg = <0x0 0x2600000 0x0 0x210000>;
resets = <&bpmp TEGRA186_RESET_GPCDMA>;
reset-names = "gpcdma";
- interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
@@ -112,6 +113,7 @@
#dma-cells = <1>;
iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
dma-coherent;
+ dma-channel-mask = <0xfffffffe>;
status = "okay";
};
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 9176c4b27133..593fbf22b34f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -142,7 +142,8 @@
reg = <0x2600000 0x210000>;
resets = <&bpmp TEGRA194_RESET_GPCDMA>;
reset-names = "gpcdma";
- interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
@@ -176,6 +177,7 @@
#dma-cells = <1>;
iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
dma-coherent;
+ dma-channel-mask = <0xfffffffe>;
status = "okay";
};
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 5852e765ad90..afd90b72cdea 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -28,7 +28,8 @@
reg = <0x2600000 0x210000>;
resets = <&bpmp TEGRA234_RESET_GPCDMA>;
reset-names = "gpcdma";
- interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
@@ -61,6 +62,7 @@
<GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
#dma-cells = <1>;
iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+ dma-channel-mask = <0xfffffffe>;
dma-coherent;
};
--
2.17.1
next prev parent reply other threads:[~2022-09-19 11:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 11:25 [PATCH v2 0/3] Tegra GCPDMA: Add dma-channel-mask support Akhil R
2022-09-19 11:25 ` [PATCH v2 1/3] dt-bindings: dmaengine: Add dma-channel-mask to Tegra GPCDMA Akhil R
2022-09-23 10:06 ` Jon Hunter
2022-09-19 11:25 ` Akhil R [this message]
2022-09-23 10:06 ` [PATCH v2 2/3] arm64: tegra: Add dma-channel-mask in GPCDMA node Jon Hunter
2022-09-19 11:25 ` [PATCH v2 3/3] dmaengine: tegra: Add support for dma-channel-mask Akhil R
2022-09-23 10:08 ` Jon Hunter
2022-09-23 10:17 ` Akhil R
2022-09-23 10:50 ` Jon Hunter
2022-09-23 11:09 ` Akhil R
2022-09-23 11:45 ` Jon Hunter
2022-09-23 16:22 ` Akhil R
2022-09-23 10:50 ` Jon Hunter
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