drm/panel: mingjun: use gpiod_set_value_cansleep

[Icenowy]

For power sequencing that do not require strict timing, gpiod_set_value_cansleep is usually used.

Do the same thing on the mingjun panel driver.

This fixes some warnings on Lichee Console 4A.

Summary by Sourcery

Bug Fixes:

• Replace reset GPIO toggles with gpiod_set_value_cansleep to fix warnings on platforms requiring can-sleep GPIO calls

[sourcery-ai]

Reviewer's Guide

Refactor the mingjun panel driver to replace direct GPIO toggles with the sleep-capable API for reset control, ensuring correct context usage and silencing warnings on Lichee Console 4A.

Class diagram for mingjun panel driver GPIO usage update

classDiagram
    class mingjun_panel_info {
        +struct gpio_desc *reset
        +struct regulator *hsvcc
        +struct regulator *vspn3v3
        +bool prepared
    }
    class mingjun_panel_driver {
        +int mingjun_prepare(struct drm_panel *panel)
        +int mingjun_unprepare(struct drm_panel *panel)
    }
    mingjun_panel_driver --> mingjun_panel_info : uses
    mingjun_panel_driver : - gpiod_set_value(pinfo->reset, X)
    mingjun_panel_driver : + gpiod_set_value_cansleep(pinfo->reset, X)

Loading

File-Level Changes

Change	Details	Files
Use gpiod_set_value_cansleep for reset GPIO instead of gpiod_set_value	Replace reset toggle in unprepare sequence Replace initial reset deassert in prepare Replace reset assert after power-on delay Replace reset assert in failure cleanup	drivers/gpu/drm/panel/panel-mingjun-070bi30ia2.c

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[sourcery-ai]

Hey @Icenowy - I've reviewed your changes and they look great!

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