video: ipuv3_fb: skip IPU shutdown if IPU was not enabled before
Boards can skip display interface init using board_video_skip().
If display interface was not initialized (e.g. no ipuv3 framebuffer
registered or IPU clock disabled), booting Linux stops due to the
crash in IPU shutdown function, when accessing IPU registers.
Check IPU clock and skip shutdown if clock is not enabled.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/drivers/video/ipu.h b/drivers/video/ipu.h
index 348be58..ff91d18 100644
--- a/drivers/video/ipu.h
+++ b/drivers/video/ipu.h
@@ -253,6 +253,7 @@
void ipu_dump_registers(void);
int ipu_probe(void);
+bool ipu_clk_enabled(void);
void ipu_dmfc_init(int dmfc_type, int first);
void ipu_init_dc_mappings(void);