forked from ~ljy/RK356X_SDK_RELEASE

hc
2024-09-20 cf4ce59b3b70238352c7f1729f0f7223214828ad
kernel/drivers/gpu/drm/rockchip/rk628/rk628_dsi.c
....@@ -637,6 +637,9 @@
637637 u32 val;
638638 int ret;
639639
640
+ if (!vrefresh)
641
+ return -EINVAL;
642
+
640643 ret = regmap_read_poll_timeout(dsi->regmap,
641644 dsi->reg_base + DSI_CMD_PKT_STATUS,
642645 val, !(val & GEN_RD_CMD_BUSY),