Messages in this thread | | | Date | Sat, 5 Jan 2019 11:09:08 +0530 | From | Manivannan Sadhasivam <> | Subject | Re: [PATCH 3/8 v2] dma: k3dma: Upgrade k3dma driver to support hisi_asp_dma hardware |
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On Fri, Jan 04, 2019 at 09:22:46PM -0800, John Stultz wrote: > On Fri, Jan 4, 2019 at 7:42 PM Manivannan Sadhasivam > <manivannan.sadhasivam@linaro.org> wrote: > > On Fri, Jan 04, 2019 at 12:56:23PM -0800, John Stultz wrote: > > > From: Youlin Wang <wwx575822@notesmail.huawei.com> > > > > > > There is an new "hisi-pcm-asp-dma-1.0" device added in > > > "arch/arm64/boot/dts/hisilicon/hi3660.dtsi". > > > So we have to add a matching id in the driver file: > > > .compatible = "hisilicon,hisi-pcm-asp-dma-1.0" > > > > > > And also hisi-pcm-asp dma device needs no setting to the clock. > > > So we skip this by adding and using soc data flags. > > > > > > After above this driver will support both k3 and hisi_asp dma hardware. > > > > > > > Small description about the hardware (ASP DMAC) would be really helpful. > > I've taken a shot at this (along with integrating your other feedback > - thanks again for the review!), though as I don't have direct > documentation, my knowledge is a bit second hand. > > See here: > https://git.linaro.org/people/john.stultz/android-dev.git/commit/?h=dev/hikey960-mainline-WIP&id=754a79facf1af0b59a7f8fd63050da12ebf5521e > > Let me know if you have suggestions for more specific changes!
Description looks good to me. But looks like you are not protecting the other clk APIs like clk_prepare_enable and clk_disable_unprepare. Don't they fail when the relevant clk is not found?
Thanks, Mani
> thanks > -john
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