From 2abc66cd499aa16876e45c6438788902f7d1ce22 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 10 Jul 2018 14:49:08 +0300 Subject: dmaengine: hsu: Support dmaengine_terminate_sync() It appears that the driver misses the support of dmaengine_terminate_sync(). Since many of callers expects this behaviour implement the new device_synchronize() callback to allow proper synchronization when stopping a channel. Fixes: b36f09c3c441 ("dmaengine: Add transfer termination synchronization support") Signed-off-by: Andy Shevchenko Signed-off-by: Vinod Koul --- drivers/dma/hsu/hsu.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/dma') diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c index 29d04ca71d52..202ffa9f7611 100644 --- a/drivers/dma/hsu/hsu.c +++ b/drivers/dma/hsu/hsu.c @@ -413,6 +413,13 @@ static void hsu_dma_free_chan_resources(struct dma_chan *chan) vchan_free_chan_resources(to_virt_chan(chan)); } +static void hsu_dma_synchronize(struct dma_chan *chan) +{ + struct hsu_dma_chan *hsuc = to_hsu_dma_chan(chan); + + vchan_synchronize(&hsuc->vchan); +} + int hsu_dma_probe(struct hsu_dma_chip *chip) { struct hsu_dma *hsu; @@ -459,6 +466,7 @@ int hsu_dma_probe(struct hsu_dma_chip *chip) hsu->dma.device_pause = hsu_dma_pause; hsu->dma.device_resume = hsu_dma_resume; hsu->dma.device_terminate_all = hsu_dma_terminate_all; + hsu->dma.device_synchronize = hsu_dma_synchronize; hsu->dma.src_addr_widths = HSU_DMA_BUSWIDTHS; hsu->dma.dst_addr_widths = HSU_DMA_BUSWIDTHS; -- cgit v1.2.3 From bbacb8e78a3b29ebdbb6af7d54fcf25d3f1c248f Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 10 Jul 2018 14:49:42 +0300 Subject: dmaengine: idma64: Support dmaengine_terminate_sync() It appears that the driver misses the support of dmaengine_terminate_sync(). Since many of callers expects this behaviour implement the new device_synchronize() callback to allow proper synchronization when stopping a channel. Fixes: b36f09c3c441 ("dmaengine: Add transfer termination synchronization support") Signed-off-by: Andy Shevchenko Signed-off-by: Vinod Koul --- drivers/dma/idma64.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/dma') diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c index e5c911200bdb..1fbf9cb9b742 100644 --- a/drivers/dma/idma64.c +++ b/drivers/dma/idma64.c @@ -496,6 +496,13 @@ static int idma64_terminate_all(struct dma_chan *chan) return 0; } +static void idma64_synchronize(struct dma_chan *chan) +{ + struct idma64_chan *idma64c = to_idma64_chan(chan); + + vchan_synchronize(&idma64c->vchan); +} + static int idma64_alloc_chan_resources(struct dma_chan *chan) { struct idma64_chan *idma64c = to_idma64_chan(chan); @@ -583,6 +590,7 @@ static int idma64_probe(struct idma64_chip *chip) idma64->dma.device_pause = idma64_pause; idma64->dma.device_resume = idma64_resume; idma64->dma.device_terminate_all = idma64_terminate_all; + idma64->dma.device_synchronize = idma64_synchronize; idma64->dma.src_addr_widths = IDMA64_BUSWIDTHS; idma64->dma.dst_addr_widths = IDMA64_BUSWIDTHS; -- cgit v1.2.3