Re: [PATCH 5/5] i2c: tegra: Do not configure DMA if not supported

Kartik Rajput
2025-01-15T11:42:42Z

On Thu, 2025-01-09 at 11:33 +0100, Thierry Reding wrote:
> On Wed, Jan 08, 2025 at 04:36:20PM +0530, Kartik Rajput wrote:
> > On Tegra264, not all I2C controllers support DMA, this causes
> > failures
> > when function tegra_i2c_init_dma() is called.
>
> What exactly does it mean when you say "not all I2C controllers
> support
> DMA"? Do they not have the necessary interface to the GPC DMA or are
> there not sufficient DMA channels to support all I2C controllers?
>
> Thierry

They do not have the neccessary interface to the GPC DMA.