Re: [PATCH v14 2/4] dmaengine: tegra: Add tegra gpcdma driver
From: Thierry Reding <hidden>
Date: 2021-12-09 17:11:04
Also in:
linux-devicetree, linux-tegra, lkml
On Mon, Dec 06, 2021 at 06:30:37PM +0530, Akhil R wrote:
quoted hunk ↗ jump to hunk
Adding GPC DMA controller driver for Tegra186 and Tegra194. The driver supports dma transfers between memory to memory, IO peripheral to memory and memory to IO peripheral. Signed-off-by: Pavan Kunapuli <redacted> Signed-off-by: Rajesh Gumasta <redacted> Signed-off-by: Akhil R <akhilrajeev@nvidia.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> --- drivers/dma/Kconfig | 12 + drivers/dma/Makefile | 1 + drivers/dma/tegra186-gpc-dma.c | 1284 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1297 insertions(+) create mode 100644 drivers/dma/tegra186-gpc-dma.cdiff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 80c2c03..35095ae 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig@@ -629,6 +629,18 @@ config TXX9_DMAC Support the TXx9 SoC internal DMA controller. This can be integrated in chips such as the Toshiba TX4927/38/39. +config TEGRA186_GPC_DMA + tristate "NVIDIA Tegra GPC DMA support" + depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
I wonder if we want to maybe make this depend on ARCH_TEGRA instead to avoid having to add dependencies on newer SoCs (presumably Tegra234 will feature this GPC DMA as well). Not worth a respin, but perhaps something to consider when adding Tegra234 support. Thierry
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