mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-27 12:57:53 +00:00
Code Issues Releases Wiki Activity

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

Browse source 
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: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Konrad Dybcio 2023-08-11 22:50:57 +02:00 committed by Herbert Xu
parent b9296bb412
commit cdb8b7e169
1 changed files with 3 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/crypto/qcom-rng.c
View file

@ -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");
if (IS_ERR(rng->clk))
return PTR_ERR(rng->clk);
}
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);