Re: [PATCH v5 2/6] dmaengine: dw-edma: Fix wrong interrupt bit set

[Manivannan Sadhasivam <mani@kernel.org>]

On Tue, Nov 14, 2023 at 03:51:55PM +0100, Kory Maincent wrote:

Subject should reflect HDMA:

"dmaengine: dw-edma: Fix wrong interrupt bit set for HDMA"

> 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.
> 

How about:

"Instead of setting HDMA_V0_LOCAL_ABORT_INT_EN bit, HDMA_V0_LOCAL_STOP_INT_EN
bit got set twice, due to which the abort interrupt is not getting generated for
HDMA. Fix it by setting the correct interrupt enable bit."

> Fixes: e74c39573d35 ("dmaengine: dw-edma: Add support for native HDMA")
> Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>

With the above changes,

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

- Mani

> Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
> ---
> 
> Changes in v3:
> - Split the patch in two to differ bug fix and simple harmless typo.
> ---
>  drivers/dma/dw-edma/dw-hdma-v0-core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/dma/dw-edma/dw-hdma-v0-core.c b/drivers/dma/dw-edma/dw-hdma-v0-core.c
> index 1f4cb7db5475..108f9127aaaa 100644
> --- a/drivers/dma/dw-edma/dw-hdma-v0-core.c
> +++ b/drivers/dma/dw-edma/dw-hdma-v0-core.c
> @@ -236,7 +236,7 @@ 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);
> 
> -- 
> 2.25.1
> 

-- 
மணிவண்ணன் சதாசிவம்