As there's no known hardware capability about querying vblank on the 7A1000 display controller, setting get_vblank_timestamp will mislead the kernel about the support of DC-backed high precision vblank query.
Drop this function pointer in the CRTC function table for 7A1000. This solves a kernel warning when booting Linux 7.0-rc3 on a 3A4000+7A1000 Haier Boyue G51 laptop (with injected EDID for replicating the display timing set by the firmware). Signed-off-by: Icenowy Zheng <[email protected]> --- drivers/gpu/drm/loongson/lsdc_crtc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/loongson/lsdc_crtc.c b/drivers/gpu/drm/loongson/lsdc_crtc.c index 587fbe285e9ef..b3af8e0cdb15f 100644 --- a/drivers/gpu/drm/loongson/lsdc_crtc.c +++ b/drivers/gpu/drm/loongson/lsdc_crtc.c @@ -721,7 +721,6 @@ static const struct drm_crtc_funcs ls7a1000_crtc_funcs = { .late_register = lsdc_crtc_late_register, .enable_vblank = lsdc_crtc_enable_vblank, .disable_vblank = lsdc_crtc_disable_vblank, - .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, .atomic_print_state = lsdc_crtc_atomic_print_state, }; -- 2.52.0
