[RESEND v6 03/13] Revert "dmaengine: imx-sdma: refine to load context only once"
From: Robin Gong <hidden>
Date: 2020-03-10 03:30:57
Also in:
dmaengine, linux-devicetree, linux-spi, lkml
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
This reverts commit ad0d92d7ba6aecbe2705907c38ff8d8be4da1e9c, because in spi-imx case, burst length may be changed dynamically. Signed-off-by: Robin Gong <redacted> --- 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 4d4477d..4c11c38 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; };
@@ -984,9 +983,6 @@ 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)
@@ -1029,8 +1025,6 @@ static int sdma_load_context(struct sdma_channel *sdmac) spin_unlock_irqrestore(&sdma->channel_0_lock, flags); - sdmac->context_loaded = true; - return ret; }
@@ -1069,7 +1063,6 @@ static void sdma_channel_terminate_work(struct work_struct *work) vchan_get_all_descriptors(&sdmac->vc, &head); spin_unlock_irqrestore(&sdmac->vc.lock, flags); vchan_dma_desc_free_list(&sdmac->vc, &head); - sdmac->context_loaded = false; } static int sdma_terminate_all(struct dma_chan *chan)
--
2.7.4
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