In message 000101c8f382$6761a650$30065e0a@SHZ.ST.COM you wrote:
Hi Wolfgang, I have modified my patch. New macro "CONFIG_SM501_ENABLE_2DENGINE" be included to specify codes what enable SM501 2D engine. The macro need be declared in config header file. Why does it need to enable 2D engine? The reason is most of framebuffer contents need be moved in VRAM when screen scrolls up. The work be done by software in current U-Boot for SM501. The patch is to enable 2D engine to do it by hardware without CPU interference.
Signed-off-by: Ryan Chen ryan.chen@st.com
Also note that there are coding style violations: trailing white space, indentation/vertical alignment by spaces instead of TABs, incorrect vertical alignment of "switch" / "case".
Please fix these before you resubmit.
Best regards,
Wolfgang Denk