On Wed 14 Feb 06:44 PST 2018, Srinivas Kandagatla wrote:
> @@ -1233,13 +1233,14 @@ 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);
> -
> - ret = clk_prepare_enable(bdev->bamclk);
> - if (ret) {
> - dev_err(bdev->dev, "failed to prepare/enable clock\n");
> - return ret;
> + if (IS_ERR(bdev->bamclk)) {
In the case of !bdev->controlled_remotely I think this should still be
an error.
> + bdev->bamclk = NULL;
> + } else {
> + ret = clk_prepare_enable(bdev->bamclk);
> + if (ret) {
> + dev_err(bdev->dev, "failed to prepare/enable clock\n");
> + return ret;
> + }
The rest of the driver will keep operating the bamclk (which is okay),
so for symmetry purposes I think you should just keep the
clk_prepare_enable() block unmodified.
Regards,
Bjorn
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