From 12d782734927818b9d2f197e3905410632b01fcc Mon Sep 17 00:00:00 2001 From: Alexey Romanov Date: Tue, 10 Jan 2023 13:56:46 +0300 Subject: [PATCH] asm/arch-meson: add missing meson_sm_write_efuse signature This function can be used by other modules. Also add comments. Signed-off-by: Alexey Romanov Reviewed-by: Neil Armstrong Reviewed-by: Mattijs Korpershoek Link: https://lore.kernel.org/r/20230110105650.54580-2-avromanov@sberdevices.ru Signed-off-by: Neil Armstrong --- arch/arm/include/asm/arch-meson/sm.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm/include/asm/arch-meson/sm.h b/arch/arm/include/asm/arch-meson/sm.h index f3ae46a6d6..53b7517649 100644 --- a/arch/arm/include/asm/arch-meson/sm.h +++ b/arch/arm/include/asm/arch-meson/sm.h @@ -6,10 +6,35 @@ #ifndef __MESON_SM_H__ #define __MESON_SM_H__ +/** + * meson_sm_read_efuse - read efuse memory into buffer + * + * @offset: offset from the start efuse memory + * @buffer: pointer to buffer + * @size: number of bytes to read + * @return: number of bytes read + */ ssize_t meson_sm_read_efuse(uintptr_t offset, void *buffer, size_t size); +/** + * meson_sm_write_efuse - write into efuse memory from buffer + * + * @offset: offset from the start efuse memory + * @buffer: pointer to buffer + * @size: number of bytes to write + * @return: number of bytes written + */ +ssize_t meson_sm_write_efuse(uintptr_t offset, void *buffer, size_t size); + #define SM_SERIAL_SIZE 12 +/** + * meson_sm_get_serial - read chip unique id into buffer + * + * @buffer: pointer to buffer + * @size: buffer size. + * @return: zero on success or -errno on failure + */ int meson_sm_get_serial(void *buffer, size_t size); enum { @@ -28,6 +53,9 @@ enum { REBOOT_REASON_WATCHDOG_REBOOT = 13, }; +/** + * meson_sm_get_reboot_reason - get reboot reason + */ int meson_sm_get_reboot_reason(void); #endif /* __MESON_SM_H__ */ -- 2.39.5