linux-kernel - Re: [PATCH 5/8 v4] dma: k3dma: Add support for dma-channel-mask

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Date:   Tue, 22 Jan 2019 16:27:27 -0800
From:   John Stultz <john.stultz@...aro.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     lkml <linux-kernel@...r.kernel.org>, Li Yu <liyu65@...ilicon.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Vinod Koul <vkoul@...nel.org>,
        Tanglei Han <hantanglei@...wei.com>,
        Zhuangluan Su <suzhuangluan@...ilicon.com>,
        Ryan Grachek <ryan@...ted.us>,
        Guodong Xu <guodong.xu@...aro.org>,
        "open list:DMA GENERIC OFFLOAD ENGINE SUBSYSTEM" 
        <dmaengine@...r.kernel.org>
Subject: Re: [PATCH 5/8 v4] dma: k3dma: Add support for dma-channel-mask

On Thu, Jan 17, 2019 at 9:14 AM Manivannan Sadhasivam
<manivannan.sadhasivam@...aro.org> wrote:
>
> /* Skip the channels which are masked */
> if ((d->dma_channel_mask) & BIT(pch))
>         continue;

Per the discussion w/ Vinod and Rob, I think I'll leave this bit be,
so we use the channels in the bitmask.

> PS: Use BIT() macro where applicable.

But this suggestions I've integrated for v5.

Thanks so much for the review!
-john