linux-kernel - Re: [PATCH 2/9] dmaengine: dw-edma: Typos fixes

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Date:   Mon, 19 Jun 2023 00:15:31 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Köry Maincent <kory.maincent@...tlin.com>
Cc:     Cai Huoqing <cai.huoqing@...ux.dev>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Vinod Koul <vkoul@...nel.org>,
        Gustavo Pimentel <Gustavo.Pimentel@...opsys.com>,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Herve Codina <herve.codina@...tlin.com>
Subject: Re: [PATCH 2/9] dmaengine: dw-edma: Typos fixes

On Fri, Jun 09, 2023 at 10:16:47AM +0200, Köry Maincent wrote:
> From: Kory Maincent <kory.maincent@...tlin.com>
> 
> Fix "HDMA_V0_REMOTEL_STOP_INT_EN" typo error.
> Fix "HDMA_V0_LOCAL_STOP_INT_EN" to "HDMA_V0_LOCAL_ABORT_INT_EN" as the STOP
> bit is already set in the same line.
> 
> Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
> Fixes: e74c39573d35 ("dmaengine: dw-edma: Add support for native HDMA")

Good catch! Thanks for the patch.
Reviewed-by: Serge Semin <fancer.lancer@...il.com>

* It seems to me that the DMA-abort path of the DW HDMA driver hasn't
* been well tested.

-Serge(y)

> ---
> 
> This patch is fixing a commit which is only in dmaengine tree and not
> merged mainline.
> ---
>  drivers/dma/dw-edma/dw-hdma-v0-core.c | 2 +-
>  drivers/dma/dw-edma/dw-hdma-v0-regs.h | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/dw-edma/dw-hdma-v0-core.c b/drivers/dma/dw-edma/dw-hdma-v0-core.c
> index de87ce6b8585..da8663f45fdb 100644
> --- a/drivers/dma/dw-edma/dw-hdma-v0-core.c
> +++ b/drivers/dma/dw-edma/dw-hdma-v0-core.c
> @@ -231,7 +231,7 @@ static void dw_hdma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
>  		/* Interrupt enable&unmask - done, abort */
>  		tmp = GET_CH_32(dw, chan->dir, chan->id, int_setup) |
>  		      HDMA_V0_STOP_INT_MASK | HDMA_V0_ABORT_INT_MASK |
> -		      HDMA_V0_LOCAL_STOP_INT_EN | HDMA_V0_LOCAL_STOP_INT_EN;
> +		      HDMA_V0_LOCAL_STOP_INT_EN | HDMA_V0_LOCAL_ABORT_INT_EN;
>  		SET_CH_32(dw, chan->dir, chan->id, int_setup, tmp);
>  		/* Channel control */
>  		SET_CH_32(dw, chan->dir, chan->id, control1, HDMA_V0_LINKLIST_EN);
> diff --git a/drivers/dma/dw-edma/dw-hdma-v0-regs.h b/drivers/dma/dw-edma/dw-hdma-v0-regs.h
> index a974abdf8aaf..eab5fd7177e5 100644
> --- a/drivers/dma/dw-edma/dw-hdma-v0-regs.h
> +++ b/drivers/dma/dw-edma/dw-hdma-v0-regs.h
> @@ -15,7 +15,7 @@
>  #define HDMA_V0_LOCAL_ABORT_INT_EN		BIT(6)
>  #define HDMA_V0_REMOTE_ABORT_INT_EN		BIT(5)
>  #define HDMA_V0_LOCAL_STOP_INT_EN		BIT(4)
> -#define HDMA_V0_REMOTEL_STOP_INT_EN		BIT(3)
> +#define HDMA_V0_REMOTE_STOP_INT_EN		BIT(3)
>  #define HDMA_V0_ABORT_INT_MASK			BIT(2)
>  #define HDMA_V0_STOP_INT_MASK			BIT(0)
>  #define HDMA_V0_LINKLIST_EN			BIT(0)
> -- 
> 2.25.1
>