Messages in this thread | | | Date | Thu, 19 May 2022 23:28:31 +0530 | From | Vinod Koul <> | Subject | Re: [PATCH v1 03/15] Revert "dmaengine: imx-sdma: refine to load context only once" |
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On 23-04-19, 13:50, Robin Gong wrote: > This reverts commit ad0d92d7ba6aecbe2705907c38ff8d8be4da1e9c, because
Please fix this as well
> in spi-imx case, burst length may be changed dynamically.
So what is the solution to handle different burst lengths, pls explain...
> > Signed-off-by: Robin Gong <yibin.gong@nxp.com> > --- > drivers/dma/imx-sdma.c | 7 ------- > 1 file changed, 7 deletions(-) > > diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c > index 99d9f43..407a56e 100644 > --- a/drivers/dma/imx-sdma.c > +++ b/drivers/dma/imx-sdma.c > @@ -377,7 +377,6 @@ struct sdma_channel { > unsigned long watermark_level; > u32 shp_addr, per_addr; > enum dma_status status; > - bool context_loaded; > struct imx_dma_data data; > struct work_struct terminate_worker; > }; > @@ -988,9 +987,6 @@ static int sdma_load_context(struct sdma_channel *sdmac) > int ret; > unsigned long flags; > > - if (sdmac->context_loaded) > - return 0; > - > if (sdmac->direction == DMA_DEV_TO_MEM) > load_address = sdmac->pc_from_device; > else if (sdmac->direction == DMA_DEV_TO_DEV) > @@ -1033,8 +1029,6 @@ static int sdma_load_context(struct sdma_channel *sdmac) > > spin_unlock_irqrestore(&sdma->channel_0_lock, flags); > > - sdmac->context_loaded = true; > - > return ret; > } > > @@ -1074,7 +1068,6 @@ static void sdma_channel_terminate_work(struct work_struct *work) > sdmac->desc = NULL; > spin_unlock_irqrestore(&sdmac->vc.lock, flags); > vchan_dma_desc_free_list(&sdmac->vc, &head); > - sdmac->context_loaded = false; > } > > static int sdma_disable_channel_async(struct dma_chan *chan) > -- > 2.7.4 >
-- ~Vinod
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