On Thu, 29 Oct 2015 15:54:49 +0800 Peng Fan <[email protected]> wrote:
> Introudce a new function lcdif_power_down. > > 1. Waits for a VSYNC interrupt to guarantee the reset is done at the > VSYNC edge, which somehow makes the LCDIF consume the display FIFO(?) > and helps the LCDIF work normally at the kernel stage. > 2. Add power down function to stop lcdif. > > The reason to introduce lcdif_power_down is that we want lcdif to be in > initial state when doing uboot reset or before kernel boot to make > system stable, otherwise system may hang. > > Signed-off-by: Peng Fan <[email protected]> > Cc: Stefano Babic <[email protected]> > Cc: Anatolij Gustschin <[email protected]> > --- > > V3: > none > V2: > none > > arch/arm/include/asm/imx-common/sys_proto.h | 2 ++ > drivers/video/mxsfb.c | 17 +++++++++++++++++ > 2 files changed, 19 insertions(+) Acked-by: Anatolij Gustschin <[email protected]> _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
