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| author | Dave Jiang <dave.jiang@intel.com> | 2016-07-20 22:13:16 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-08-08 04:41:41 +0200 |
| commit | 370c0446af5e3c8ddefbb753a1df84c278fff6d0 (patch) | |
| tree | 6af3af7e1113b2ef43a5b79fdca0107a87f62821 /drivers/dma/tegra20-apb-dma.c | |
| parent | dmaengine: ste_dma40: convert callback to helper function (diff) | |
| download | linux-370c0446af5e3c8ddefbb753a1df84c278fff6d0.tar.xz linux-370c0446af5e3c8ddefbb753a1df84c278fff6d0.zip | |
dmaengine: tegra20-apb-dma: convert callback to helper function
This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/tegra20-apb-dma.c')
| -rw-r--r-- | drivers/dma/tegra20-apb-dma.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index 6ab9eb98588a..3722b9d8d9fe 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -655,8 +655,7 @@ static void handle_cont_sngl_cycle_dma_done(struct tegra_dma_channel *tdc, static void tegra_dma_tasklet(unsigned long data) { struct tegra_dma_channel *tdc = (struct tegra_dma_channel *)data; - dma_async_tx_callback callback = NULL; - void *callback_param = NULL; + struct dmaengine_desc_callback cb; struct tegra_dma_desc *dma_desc; unsigned long flags; int cb_count; @@ -666,13 +665,12 @@ static void tegra_dma_tasklet(unsigned long data) dma_desc = list_first_entry(&tdc->cb_desc, typeof(*dma_desc), cb_node); list_del(&dma_desc->cb_node); - callback = dma_desc->txd.callback; - callback_param = dma_desc->txd.callback_param; + dmaengine_desc_get_callback(&dma_desc->txd, &cb); cb_count = dma_desc->cb_count; dma_desc->cb_count = 0; spin_unlock_irqrestore(&tdc->lock, flags); - while (cb_count-- && callback) - callback(callback_param); + while (cb_count--) + dmaengine_desc_callback_invoke(&cb, NULL); spin_lock_irqsave(&tdc->lock, flags); } spin_unlock_irqrestore(&tdc->lock, flags); |