dmaengine: mediatek: convert tasklets to use new tasklet_setup() API

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Link: https://lore.kernel.org/r/20200831103542.305571-14-allen.lkml@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/mediatek/mtk-cqdma.c b/drivers/dma/mediatek/mtk-cqdma.c
index 6bf838e..41ef9f1 100644 (file)
--- a/drivers/dma/mediatek/mtk-cqdma.c
+++ b/drivers/dma/mediatek/mtk-cqdma.c
@@ -356,9 +356,9 @@ static struct mtk_cqdma_vdesc
        return ret;
 }
 
-static void mtk_cqdma_tasklet_cb(unsigned long data)
+static void mtk_cqdma_tasklet_cb(struct tasklet_struct *t)
 {
-       struct mtk_cqdma_pchan *pc = (struct mtk_cqdma_pchan *)data;
+       struct mtk_cqdma_pchan *pc = from_tasklet(pc, t, tasklet);
        struct mtk_cqdma_vdesc *cvd = NULL;
        unsigned long flags;
 
@@ -878,8 +878,7 @@ static int mtk_cqdma_probe(struct platform_device *pdev)
 
        /* initialize tasklet for each PC */
        for (i = 0; i < cqdma->dma_channels; ++i)
-               tasklet_init(&cqdma->pc[i]->tasklet, mtk_cqdma_tasklet_cb,
-                            (unsigned long)cqdma->pc[i]);
+               tasklet_setup(&cqdma->pc[i]->tasklet, mtk_cqdma_tasklet_cb);
 
        dev_info(&pdev->dev, "MediaTek CQDMA driver registered\n");