From 9d31821fa9ca9a12e22e1238901ab12e295eec86 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Thu, 15 Feb 2018 12:25:07 +0000 Subject: [PATCH] dmaengine: qcom: bam_dma: make bam clk optional When BAM is remotely controlled it does not sound correct to control its clk on Linux side. Make it optional, so that its not mandatory for remote controlled BAM instances. Signed-off-by: Srinivas Kandagatla Signed-off-by: Vinod Koul --- drivers/dma/qcom/bam_dma.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c index d076940e0c69..b79691fcc82d 100644 --- a/drivers/dma/qcom/bam_dma.c +++ b/drivers/dma/qcom/bam_dma.c @@ -1233,8 +1233,12 @@ static int bam_dma_probe(struct platform_device *pdev) "qcom,controlled-remotely"); bdev->bamclk = devm_clk_get(bdev->dev, "bam_clk"); - if (IS_ERR(bdev->bamclk)) - return PTR_ERR(bdev->bamclk); + if (IS_ERR(bdev->bamclk)) { + if (!bdev->controlled_remotely) + return PTR_ERR(bdev->bamclk); + + bdev->bamclk = NULL; + } ret = clk_prepare_enable(bdev->bamclk); if (ret) { -- 2.45.2