linux/drivers/char/hw_random, branch for-next

hwrng: amd - remove reference to removed PPC_MAPLE config

2024-11-15T11:52:51Z

Commit 62f8f307c80e ("powerpc/64: Remove maple platform") removes the PPC_MAPLE config as a consequence of the platform’s removal. The config definition of HW_RANDOM_AMD refers to this removed config option in its dependencies. Remove the reference to the removed config option. Signed-off-by: Lukas Bulwahn Acked-by: Michael Ellerman (powerpc) Signed-off-by: Herbert Xu

hwrng: bcm74110 - Add Broadcom BCM74110 RNG driver

2024-11-10T03:51:26Z

Add a driver for the random number generator present on the Broadcom BCM74110 SoC. Signed-off-by: Markus Mayer Signed-off-by: Herbert Xu

hwrng: drivers - Switch back to struct platform_driver::remove()

2024-11-02T10:23:24Z

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/char/hw_random to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König Signed-off-by: Herbert Xu

hwrng: airoha - add support for Airoha EN7581 TRNG

2024-10-28T10:33:10Z

Add support for Airoha TRNG. The Airoha SoC provide a True RNG module that can output 4 bytes of raw data at times. The module makes use of various noise source to provide True Random Number Generation. On probe the module is reset to operate Health Test and verify correct execution of it. The module can also provide DRBG function but the execution mode is mutually exclusive, running as TRNG doesn't permit to also run it as DRBG. Signed-off-by: Christian Marangi Reviewed-by: Martin Kaiser Signed-off-by: Herbert Xu

hwrng: stm32 - update STM32MP15 RNG max clock frequency

2024-10-28T10:33:10Z

RNG max clock frequency can be updated to 48MHz for stm32mp1x platforms according to the latest specifications. Signed-off-by: Gatien Chevallier Reviewed-by: Marek Vasut Signed-off-by: Herbert Xu

hwrng: stm32 - implement support for STM32MP25x platforms

2024-10-28T10:33:09Z

Implement the support for STM32MP25x platforms. On this platform, a security clock is shared between some hardware blocks. For the RNG, it is the RNG kernel clock. Therefore, the gate is no more shared between the RNG bus and kernel clocks as on STM32MP1x platforms and the bus clock has to be managed on its own. Signed-off-by: Gatien Chevallier Reviewed-by: Marek Vasut Signed-off-by: Herbert Xu

hwrng: histb - Fix the wrong format specifier

2024-10-19T00:44:30Z

The format specifier of "unsigned int" in sprintf() should be "%u", not "%d". Signed-off-by: Zhu Jun Signed-off-by: Herbert Xu

hwrng: core - Add WARN_ON for buggy read return values

2024-10-05T05:22:05Z

If a buggy driver returns a length that is longer than the size of the buffer provided to it, then this may lead to a buffer overread in the caller. Stop this by adding a check for it in the hwrng core. Reported-by: Guangwu Zhang Signed-off-by: Herbert Xu

hwrng: iproc-r200 - enable on BCMBCA

2024-10-05T05:22:05Z

The Broadcom Broadband Access (BCA) SoC:s include the iproc r200 hwrng so enable it to be selected for these platforms. Signed-off-by: Linus Walleij Signed-off-by: Herbert Xu

hwrng: mtk - Use devm_pm_runtime_enable

2024-09-06T06:50:45Z

Replace pm_runtime_enable with the devres-enabled version which can trigger pm_runtime_disable. Otherwise, the below appears during reload driver. mtk_rng 1020f000.rng: Unbalanced pm_runtime_enable! Fixes: 81d2b34508c6 ("hwrng: mtk - add runtime PM support") Cc: Suggested-by: Chen-Yu Tsai Signed-off-by: Guoqing Jiang Signed-off-by: Herbert Xu