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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2019-09-24 11:51:16 +0300
committerVinod Koul <vkoul@kernel.org>2019-10-14 11:21:44 +0300
commitf27c22736d133baff0ab3fdc7b015d998267d817 (patch)
treeadd1ad60d5b239d4c7707ee22e4eb4103efb84ed /drivers/dma
parent833b48242686606670edaa72a465c0faa44d2916 (diff)
downloadlinux-f27c22736d133baff0ab3fdc7b015d998267d817.tar.xz
dmaengine: dw: platform: Mark 'hclk' clock optional
On some platforms the clock can be fixed rate, always running one and there is no need to do anything with it. In order to support those platforms, switch to use optional clock. Fixes: f8d9ddbc2851 ("dmaengine: dw: platform: Enable iDMA 32-bit on Intel Elkhart Lake") Depends-on: 60b8f0ddf1a9 ("clk: Add (devm_)clk_get_optional() functions") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20190924085116.83683-1-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/dw/platform.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index c90c798e5ec3..0585d749d935 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -66,7 +66,7 @@ static int dw_probe(struct platform_device *pdev)
data->chip = chip;
- chip->clk = devm_clk_get(chip->dev, "hclk");
+ chip->clk = devm_clk_get_optional(chip->dev, "hclk");
if (IS_ERR(chip->clk))
return PTR_ERR(chip->clk);
err = clk_prepare_enable(chip->clk);