Commit cdb8b7e1 authored by Konrad Dybcio's avatar Konrad Dybcio Committed by Herbert Xu
Browse files

crypto: qcom-rng: Make the core clock optional regardless of ACPI presence 



Some newer SoCs (like SM8450) do not require a clock vote for the PRNG
to function. Make it entirely optional and rely on the bindings checker
to ensure platforms that need it, consume one.

Signed-off-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: default avatarBjorn Andersson <andersson@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent b9296bb4

drivers/crypto/qcom-rng.c

+3 −7
Original line number Diff line number Diff line
@@ -173,13 +173,9 @@ static int qcom_rng_probe(struct platform_device *pdev) 
	if (IS_ERR(rng->base))

		return PTR_ERR(rng->base);



	/* ACPI systems have clk already on, so skip clk_get */

	if (!has_acpi_companion(&pdev->dev)) {

		rng->clk = devm_clk_get(&pdev->dev, "core");

	rng->clk = devm_clk_get_optional(&pdev->dev, "core");

	if (IS_ERR(rng->clk))

		return PTR_ERR(rng->clk);

	}





	rng->skip_init = (unsigned long)device_get_match_data(&pdev->dev);