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path: root/drivers/crypto/qcom-rng.c
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2019-08-09crypto: qcom-rng - use devm_platform_ioremap_resource() to simplify codeYueHaibing
Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-07-27crypto: qcom-rng - Add ACPI supportTimur Tabi
Add support for probing on ACPI systems, with ACPI HID QCOM8160. On ACPI systems, clocks are always enabled, the PRNG should already be enabled, and the register region is read-only. The driver only verifies that the hardware is already enabled never tries to disable or configure it. Signed-off-by: Timur Tabi <timur@codeaurora.org> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> [port to crypto API] Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-07-27crypto: qcom-rng - Add support for prng-eeVinod Koul
Qcom 8996 and later chips features multiple Execution Environments (EE) and secure world is typically responsible for configuring the prng. Add driver data for qcom,prng as 0 and qcom,prng-ee as 1 and use that to skip initialization routine. Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-07-27crypto: qcom-rng - Add Qcom prng driverVinod Koul
This ports the Qcom prng from older hw_random driver. No change of functionality and move from hw_random to crypto APIs is done. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>