From: Akhil R <akhilrajeev@nvidia.com>
To: <dmaengine@vger.kernel.org>, <linux-tegra@vger.kernel.org>
Cc: <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<vkoul@kernel.org>, <Frank.Li@kernel.org>, <robh@kernel.org>,
<krzk+dt@kernel.org>, <conor+dt@kernel.org>,
<thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
<p.zabel@pengutronix.de>, Akhil R <akhilrajeev@nvidia.com>
Subject: [PATCH 7/8] dmaengine: tegra: Add Tegra264 support
Date: Tue, 17 Feb 2026 23:04:56 +0530 [thread overview]
Message-ID: <20260217173457.18628-8-akhilrajeev@nvidia.com> (raw)
In-Reply-To: <20260217173457.18628-1-akhilrajeev@nvidia.com>
Update compatible and chip data to support GPCDMA in Tegra264.
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
---
drivers/dma/tegra186-gpc-dma.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c
index b8ca269fa3ba..11347c9f3215 100644
--- a/drivers/dma/tegra186-gpc-dma.c
+++ b/drivers/dma/tegra186-gpc-dma.c
@@ -1342,6 +1342,25 @@ static const struct tegra_dma_channel_regs tegra186_reg_offsets = {
.spare = 0x40,
};
+static const struct tegra_dma_channel_regs tegra264_reg_offsets = {
+ .csr = 0x0,
+ .status = 0x4,
+ .csre = 0x8,
+ .src = 0xc,
+ .dst = 0x10,
+ .src_high = 0x14,
+ .dst_high = 0x18,
+ .mc_seq = 0x1c,
+ .mmio_seq = 0x20,
+ .wcount = 0x24,
+ .wxfer = 0x28,
+ .wstatus = 0x2c,
+ .err_status = 0x34,
+ .fixed_pattern = 0x38,
+ .tz = 0x3c,
+ .spare = 0x44,
+};
+
static const struct tegra_dma_chip_data tegra186_dma_chip_data = {
.nr_channels = 32,
.addr_bits = 40,
@@ -1372,6 +1391,16 @@ static const struct tegra_dma_chip_data tegra234_dma_chip_data = {
.terminate = tegra_dma_pause_noerr,
};
+static const struct tegra_dma_chip_data tegra264_dma_chip_data = {
+ .nr_channels = 32,
+ .addr_bits = 48,
+ .channel_reg_size = SZ_64K,
+ .max_dma_count = SZ_1G,
+ .hw_support_pause = true,
+ .channel_regs = &tegra264_reg_offsets,
+ .terminate = tegra_dma_pause_noerr,
+};
+
static const struct of_device_id tegra_dma_of_match[] = {
{
.compatible = "nvidia,tegra186-gpcdma",
@@ -1382,6 +1411,9 @@ static const struct of_device_id tegra_dma_of_match[] = {
}, {
.compatible = "nvidia,tegra234-gpcdma",
.data = &tegra234_dma_chip_data,
+ }, {
+ .compatible = "nvidia,tegra264-gpcdma",
+ .data = &tegra264_dma_chip_data,
}, {
},
};
--
2.50.1
next prev parent reply other threads:[~2026-02-17 17:37 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-17 17:34 [PATCH 0/8] Add GPCDMA support in Tegra264 Akhil R
2026-02-17 17:34 ` [PATCH 1/8] dt-bindings: dma: nvidia,tegra186-gpc-dma: Add iommu-map property Akhil R
2026-02-17 18:38 ` Rob Herring (Arm)
2026-02-17 19:53 ` Krzysztof Kozlowski
2026-02-18 9:59 ` Jon Hunter
2026-02-18 15:49 ` Rob Herring
2026-02-24 6:41 ` Akhil R
2026-02-17 17:34 ` [PATCH 2/8] dt-bindings: dma: nvidia,tegra186-gpc-dma: Make reset optional Akhil R
2026-02-17 18:38 ` Rob Herring (Arm)
2026-02-17 17:34 ` [PATCH 3/8] dmaengine: tegra: Make reset control optional Akhil R
2026-02-17 18:04 ` Frank Li
2026-02-24 5:39 ` Akhil R
2026-02-24 17:02 ` Jon Hunter
2026-02-25 10:01 ` Akhil R
2026-02-17 17:34 ` [PATCH 4/8] dmaengine: tegra: Use struct for register offsets Akhil R
2026-02-17 18:09 ` Frank Li
2026-02-17 17:34 ` [PATCH 5/8] dmaengine: tegra: Support address width > 40 bits Akhil R
2026-02-17 19:44 ` Frank Li
2026-02-24 6:03 ` Akhil R
2026-02-17 17:34 ` [PATCH 6/8] dmaengine: tegra: Use iommu-map for stream ID Akhil R
2026-02-17 19:52 ` Frank Li
2026-02-24 6:25 ` Akhil R
2026-02-24 21:59 ` Frank Li
2026-02-25 10:27 ` Akhil R
2026-02-25 11:23 ` Jon Hunter
2026-02-26 4:25 ` Akhil R
2026-02-19 8:28 ` Dan Carpenter
2026-02-17 17:34 ` Akhil R [this message]
2026-02-17 19:53 ` [PATCH 7/8] dmaengine: tegra: Add Tegra264 support Frank Li
2026-02-17 17:34 ` [PATCH 8/8] arm64: tegra: Add iommu-map and enable GPCDMA in Tegra264 Akhil R
2026-02-17 18:02 ` Frank Li
2026-02-24 6:55 ` Akhil R
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260217173457.18628-8-akhilrajeev@nvidia.com \
--to=akhilrajeev@nvidia.com \
--cc=Frank.Li@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=dmaengine@vger.kernel.org \
--cc=jonathanh@nvidia.com \
--cc=krzk+dt@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=p.zabel@pengutronix.de \
--cc=robh@kernel.org \
--cc=thierry.reding@gmail.com \
--cc=vkoul@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox