Commit f27c2273 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Vinod Koul
Browse files

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: f8d9ddbc ("dmaengine: dw: platform: Enable iDMA 32-bit on Intel Elkhart Lake")
Depends-on: 60b8f0dd ("clk: Add (devm_)clk_get_optional() functions")
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20190924085116.83683-1-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 833b4824

drivers/dma/dw/platform.c

+1 −1
Original line number Diff line number Diff line
@@ -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);