Re: [PATCH v2 14/17] dma: qcom: bam_dma: Create a new header file for BAM DMA driver

From: Bhupesh Sharma
Date: Sun May 09 2021 - 15:21:03 EST


Hi Vinod,

Thanks for the review.

On Sun, 9 May 2021 at 19:28, Vinod Koul <vkoul@xxxxxxxxxx> wrote:
>
> On 06-05-21, 03:07, Bhupesh Sharma wrote:
> > Create a new header file for BAM DMA driver to make sure
> > that it can be included in the follow-up patch to defer probing
> > drivers which require BAM DMA driver to be first probed successfully.
> >
> > Cc: Thara Gopinath <thara.gopinath@xxxxxxxxxx>
> > Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> > Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> > Cc: Andy Gross <agross@xxxxxxxxxx>
> > Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> > Cc: David S. Miller <davem@xxxxxxxxxxxxx>
> > Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
> > Cc: Michael Turquette <mturquette@xxxxxxxxxxxx>
> > Cc: Vinod Koul <vkoul@xxxxxxxxxx>
> > Cc: dmaengine@xxxxxxxxxxxxxxx
> > Cc: linux-clk@xxxxxxxxxxxxxxx
> > Cc: linux-crypto@xxxxxxxxxxxxxxx
> > Cc: devicetree@xxxxxxxxxxxxxxx
> > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > Cc: bhupesh.linux@xxxxxxxxx
> > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
> > ---
> > drivers/dma/qcom/bam_dma.c | 283 +-----------------------------------
> > include/soc/qcom/bam_dma.h | 290 +++++++++++++++++++++++++++++++++++++
>
> 1. Please use -M with move patches...

Oops, will do.

> 2. susbsytem is dmaengine
>
> 3. Why move..? These things are internal to the driver and I dont think
> it is wise for clients to use everything here... If the client needs to
> know defer probe, it should request a channel and check the status
> returned for EPROBE_DEFER

Yes, the main intent is to defer the probe of the calling client driver in
case the BAM DMA is not probed() yet.

Sure, I will make the suggested change in v3,

Regards,
Bhupesh