Messages in this thread | | | Date | Mon, 19 May 2014 18:36:58 +0530 | From | Sekhar Nori <> | Subject | Re: [PATCH v3 00/13] ARM/DT: edma: IP configuration from hardware and cleanups |
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On Friday 16 May 2014 05:47 PM, Peter Ujfalusi wrote: > Hi, > > Changes since v2: > - Comments from Sekhar and Arnd has been addressed best as I could. > - Use the CCCFG information in all cases instead of pdata provided information > - To achieve this I needed to do a bit more cleanup in this series > - In the documentation patch, retrain the old properties for reference > - Cleanups in the old davinci board files and removing edma_soc_info members > > Changes sicne v1: > - added missing patch to remove the memset from edma_of_parse_dt() > > We are requesting redundant information via DT for the driver since the very same > data is available in the HW: by reading and decoding the content of CCCFG > register we can get: > Number of channels: NUM_DMACH > Number of regions: NUM_REGN > Number of slots (PaRAM sets): NUM_PAENTRY > Number of TC/EQ: NUM_EVQUE > > So these does not need to be provided by the DT binding. > > The driver will no longer look for these properties from DT and they can be > removed from the binding documentation and from the dtsi files as well. > The change will not introduce regression when new kernel is booted using older > DTB (since we just ignore the mentioned properties).
Applied all patches and pushed to branch v3.16/edma of:
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
Since the patches did not apply cleanly, please verify. I tested on DA850 EVM using MMC/SD as EDMA user.
I will wait to get acks from DT maintainers before sending to ARM-SoC.
Thanks, Sekhar
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