From: Andy Shevchenko Date: Tue, 24 Sep 2019 08:51:16 +0000 (+0300) Subject: dmaengine: dw: platform: Mark 'hclk' clock optional X-Git-Tag: v5.5-rc1~78^2~49 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f27c22736d133baff0ab3fdc7b015d998267d817;p=users%2Fjedix%2Flinux-maple.git 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 Acked-by: Viresh Kumar Link: https://lore.kernel.org/r/20190924085116.83683-1-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul --- 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);