On Thu, Feb 23, 2012 at 12:59 PM, Peter Ujfalusi <[email protected]> wrote: > Hi Tony, > > On 02/23/2012 01:07 AM, Tony Lindgren wrote: >> * Peter Ujfalusi <[email protected]> [120217 00:54]: >>> CCDN is the last common channel register in all OMAP4 versions. Use >>> cpu_is_omap44xx() instead of the cpu_is_omap4430() - which is anyway not >>> doing what it supposed to do. >> >> This is a bit unclear.. Which is not doing what is supposed to do? >> DMA driver? Or one of the cpu_is_omap? > > The cpu_is_omap4430() returns 0 unconditionally. Because of this the > dma_common_ch_end is wrongly configured on OMAP4 (even on OMAP4430). > >> If this should be queued as a fix, then we need some kind of >> description here what breaks. > > I will resend the patch with a better commit message. This is a bug for > sure, but I'm not sure how severe it is. At best we are not clearing the > registers between CCFN, and CCDN on OMAP4. > The bug is not severe. Infact these registers are needed for descriptor loading sDMA feature which never made it to mainline :) So nothing should get impacted.
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