dmaengine: at_hdmac: prepare clk before calling enable
Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
[nicolas.ferre@atmel.com: remove return code checking in at_dma_resume_noirq()]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 3e070d2..c787f38 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1460,7 +1460,9 @@
err = PTR_ERR(atdma->clk);
goto err_clk;
}
- clk_enable(atdma->clk);
+ err = clk_prepare_enable(atdma->clk);
+ if (err)
+ goto err_clk_prepare;
/* force dma off, just in case */
at_dma_off(atdma);
@@ -1560,7 +1562,8 @@
err_pool_create:
free_irq(platform_get_irq(pdev, 0), atdma);
err_irq:
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
+err_clk_prepare:
clk_put(atdma->clk);
err_clk:
iounmap(atdma->regs);
@@ -1596,7 +1599,7 @@
list_del(&chan->device_node);
}
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
clk_put(atdma->clk);
iounmap(atdma->regs);
@@ -1615,7 +1618,7 @@
struct at_dma *atdma = platform_get_drvdata(pdev);
at_dma_off(platform_get_drvdata(pdev));
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
}
static int at_dma_prepare(struct device *dev)
@@ -1672,7 +1675,7 @@
/* disable DMA controller */
at_dma_off(atdma);
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
return 0;
}
@@ -1702,7 +1705,7 @@
struct dma_chan *chan, *_chan;
/* bring back DMA controller */
- clk_enable(atdma->clk);
+ clk_prepare_enable(atdma->clk);
dma_writel(atdma, EN, AT_DMA_ENABLE);
/* clear any pending interrupt */