Re: [PATCH v7 4/4] misc: fastrpc: Update dma_bits for CDSP support on Kaanapali SoC

[Dmitry Baryshkov]

On Fri, Dec 26, 2025 at 12:35:34PM +0530, Kumari Pallavi wrote:
> DSP currently supports 32-bit IOVA (32-bit PA + 4-bit SID) for
> both Q6 and user DMA (uDMA) access. This is being upgraded to
> 34-bit PA + 4-bit SID due to a hardware revision in CDSP for
> Kaanapali SoC, which expands the DMA addressable range.
> Update DMA bits configuration in the driver to support CDSP on
> Kaanapali SoC. Set the default `dma_bits` to 32-bit and update
> it to 34-bit based on CDSP and OF matching on the fastrpc node.
> 
> Signed-off-by: Kumari Pallavi <kumari.pallavi@xxxxxxxxxxxxxxxx>
> ---
>  drivers/misc/fastrpc.c | 15 +++++++++++++--
>  1 file changed, 13 insertions(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>

-- 
With best wishes
Dmitry