drm/panel: himax-hx83121a: pass the panel pointer when creating BL

As backlight powering on/off support will be added, more fields of the
panel context will be accessed in the backlight update function.

Pass the whole panel struct instead of the DSI device when creating the
backlight device.

Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260608162622.403713-2-zhengxingda@iscas.ac.cn
This commit is contained in:
Icenowy Zheng 2026-06-09 00:26:21 +08:00 • committed by Neil Armstrong
commit ae8dbbe895