From: Akhil R <akhilrajeev@nvidia.com>
To: Laxman Dewangan <ldewangan@nvidia.com>,
Dmitry Osipenko <digetx@gmail.com>,
Andi Shyti <andi.shyti@kernel.org>,
Thierry Reding <thierry.reding@kernel.org>,
Jonathan Hunter <jonathanh@nvidia.com>,
"Kartik Rajput" <kkartik@nvidia.com>,
Wolfram Sang <wsa@kernel.org>, <linux-i2c@vger.kernel.org>,
<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Akhil R <akhilrajeev@nvidia.com>
Subject: [PATCH v2 0/4] i2c: tegra: Improve DMA mapping, latency, and power management
Date: Mon, 18 May 2026 17:10:09 +0530 [thread overview]
Message-ID: <20260518114013.62065-1-akhilrajeev@nvidia.com> (raw)
This series addresses several aspects of the Tegra I2C driver:
- DMA mapping: Use the proper DMA device for buffer allocation to
ensure correct DMA address translation.
- Transfer latency: Disable fair arbitration on non-MCTP buses to
reduce transfer latency.
- Timing parameters: Update I2C timing values for Tegra410.
- Power management: Keep the controller available during noirq
suspend/resume phases for system dependencies.
v1->v2:
* Add description for is_mctp in the struct
Akhil R (4):
i2c: tegra: use dmaengine_get_dma_device() for DMA buffer allocation
i2c: tegra: Disable fair arbitration for non-MCTP buses
i2c: tegra: Update Tegra410 I2C timing parameters
i2c: tegra: Fix NOIRQ suspend/resume
drivers/i2c/busses/i2c-tegra.c | 87 +++++++++++++++++++++++-----------
1 file changed, 59 insertions(+), 28 deletions(-)
--
2.50.1
next reply other threads:[~2026-05-18 11:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-18 11:40 Akhil R [this message]
2026-05-18 11:40 ` [PATCH v2 1/4] i2c: tegra: use dmaengine_get_dma_device() for DMA buffer allocation Akhil R
2026-05-18 11:40 ` [PATCH v2 2/4] i2c: tegra: Disable fair arbitration for non-MCTP buses Akhil R
2026-05-18 11:40 ` [PATCH v2 3/4] i2c: tegra: Update Tegra410 I2C timing parameters Akhil R
2026-05-18 11:40 ` [PATCH v2 4/4] i2c: tegra: Fix NOIRQ suspend/resume Akhil R
2026-06-04 8:51 ` [PATCH v2 0/4] i2c: tegra: Improve DMA mapping, latency, and power management Jon Hunter
2026-06-08 19:30 ` Andi Shyti
2026-06-09 5:18 ` Akhil R
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