Re: [PATCH v2 0/9] iio: add support for the ad3552r AXI DAC IP

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On Thu, Sep 05, 2024 at 05:17:30PM +0200, Angelo Dureghello wrote:
> The serie comes from the previously discussed RFC, that i
> converted to a normal patch from this v2.
> 
> Purpose is to add ad3552r AXI DAC (fpga-based) support.
> 
> The fpga DAC IP has been created to reach the maximum speed
> (33MUPS) supported from the ad3552r. To obtain the maximum
> transfer rate, the custom module has been implemented using
> the QSPI lines in DDR mode, using a dma buffer.
> 
> The design is actually using the DAC backend since the register
> map is the same of the generic DAC IP, except for some customized
> bitfields. For this reason, a new "compatible" has been added
> in adi-axi-dac.c.
> 
> Also, backend has been extended with all the needed functions
> needed for this use case, keeping the names gneric.
> 
> Note: the following patch is actually for linux-iio/testing
> ---
> Changes in v2: 
> - use unsigned int on bus_reg_read/write
> - add a compatible in axi-dac backend for the ad3552r DAC IP
> - minor code alignment fixes
> - fix a return value not checked
> - change devicetree structure setting ad3552r-axi as a backend
>   subnode
> - add synchronous_mode_available in the ABI doc

Please give reviewers a chance to response to in-progress discussion on
a version before sending a new one. I've left a couple of responses to
v1 that I only had a chance to reply to today due to travel.

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