Hi Russell, On Tue, Oct 29, 2013 at 9:25 PM, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > There's slightly more to this than that mail, and I have to raise the > issue about whether this is the correct fix or not. See: > > http://www.spinics.net/lists/arm-kernel/msg279902.html Today I also checked U-boot HDMI splash screen on mx6solo and it was not stable either. Using FSL kernel 4.1.0 as reference (and also the suggestion from Sascha), I sent the following patch to U-boot that fixes the HDMI output on mx6solo: http://marc.info/?l=u-boot&m=138306883309837&w=2 Also noticed that the cubox-i U-boot has this workaround: https://github.com/linux4kix/u-boot/commit/cc938e0c662092b96ffb32c2e8aac416a1b12e57 ,which also results in bit 17 'di0_polarity_disp_clk' being cleared. Looking at FSL kernel, they have the FB_SYNC_CLK_LAT_FALL flag to set bit17. However this is only used at: arch/arm/mach-mx6/board-mx6sl_arm2.c: arch/arm/mach-mx6/board-mx6sl_evk.c: arch/arm/mach-mx6/board-mx6sl_evk.c: ,which are all mx6sl boards and mx6sl does not have IPU. Also tested on all the IPUv3 hardware I have access to and all of them work fine with di0_polarity_disp_clk cleared. Regards, Fabio Estevam _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
