opensbi.git/lib/utils/reset/fdt_reset_gpio.c, branch v1.2

lib: utils/fdt: Require match data to be const

2022-05-30T05:02:35Z

Match data stores hardware attributes which do not change at runtime, so it does not need to be mutable. Make it const. Reviewed-by: Guo Ren Reviewed-by: Xiang W Reviewed-by: Anup Patel Signed-off-by: Samuel Holland

lib: utils/reset: add priority to gpio reset

2021-11-12T04:45:54Z

Make gpio_system_reset_check return priority instead of just true/false. Make default 128 priority for reset/shutdown. Tested-by: Heinrich Schuchardt Reviewed-by: Alexandre Ghiti Tested-by: Alexandre Ghiti Signed-off-by: Nikita Shubin

lib: utils/reset: Register separate GPIO system reset devices

2021-11-02T03:44:11Z

Now that sbi_system support multiple system reset devices, we should register separate devices for GPIO restart and GPIO poweroff because DT describes these as separate devices with different compatible strings. Signed-off-by: Anup Patel Reviewed-by: Dong Du

lib: sbi: convert reset to list

2021-10-11T04:29:29Z

To support different handlers for different types of resets, we are adding a sbi_list of restart handlers. Instead of sbi_system_reset_set_device we use sbi_system_reset_add_device to reflect the actual meaning. Signed-off-by: Nikita Shubin Reviewed-by: Anup Patel

lib: utils: identify supported GPIO reset methods

2021-10-01T04:54:43Z

The GPIO reset driver supports reset and poweroff. But not all boards support both. gpio_system_reset_check() must detect this situation. Signed-off-by: Heinrich Schuchardt Reviewed-by: Anup Patel

lib: utils/reset: use sbi_timer_mdelay() in gpio reset driver

2021-09-26T14:22:18Z

We should use sbi_timer_mdelay() instead of custom gpio_mdelay() in the gpio reset driver. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Xiang W

lib: utils: support both of gpio-poweroff, gpio-reset

2021-07-27T11:56:54Z

The generic GPIO reset driver has two entries in the match table: "gpio-poweroff", "gpio-reset". Only the first entry is considered by fdt_reset_init(). Define "gpio-poweroff" and "gpio-reset" as compatibility strings of two separate reset drivers. They still can share code. Fixes: e3d6919d10d7 ("lib: utils/reset: Add generic GPIO reset driver") Signed-off-by: Heinrich Schuchardt Reviewed-by: Atish Patra

lib: utils/reset: Add generic GPIO reset driver

2021-07-17T08:42:07Z

We add generic GPIO reset driver inspired from gpio-restart and gpio-poweroff drivers of Linux kernel. Signed-off-by: Green Wan Signed-off-by: Anup Patel Reviewed-by: Atish Patra