Re: [PATCH V17 1/3] dmaengine: qcom_hidma: implement lower level hardware interface

From: Sinan Kaya
Date: Thu Apr 28 2016 - 15:30:21 EST


On 4/26/2016 12:24 PM, Vinod Koul wrote:
>> +
>> > + dev_err(lldev->dev, "error 0x%x, resetting...\n",
>> > + cause);
> right justify this and others as well please
>

Can you please point me to other lines that need to be fixed please? It looks good
to me though it doesn't to you. I want to make sure that I'm touching the right ones.
You seem to prefer a tab following an open parenthesis in your code. Do you want me to
add a tab for every single multi-line such that it comes this for instance?


ret = readl_poll_timeout(lldev->trca + HIDMA_TRCA_CTRLSTS_REG, val,
HIDMA_CH_STATE(val) == HIDMA_CH_DISABLED,
1000, 10000);

instead of

ret = readl_poll_timeout(lldev->trca + HIDMA_TRCA_CTRLSTS_REG, val,
HIDMA_CH_STATE(val) == HIDMA_CH_DISABLED, 1000,
10000);


>>>> > >> +int hidma_ll_resume(struct hidma_lldev *lldev)
>>>> > >> +{
>>>> > >> + return hidma_ll_enable(lldev);
>>>> > >> +}
>>> > >
>>> > > why do we need this empty function, use hidma_ll_enable.
>> >
>> > hidma_ll_enable is a common function that gets called from multiple places.
>> > hidma_ll_resume and hidma_ll_pause is used by the OS interface for pausing
>> > and resuming the DMA channel.
> is there a reason why we can't have the code in resume and that being called
> internally as well as externally?
>

I'll have the pause code in OS layer call hidma_ll_enable and get rid of pause
function here.

--
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project