<mdrjr>
add's support for a few pixel clocks on HDMI 1.4
<mdrjr>
however attempting to using 71Mhz on a 4412 Board will cause the pll to not settle :(
<mdrjr>
any ideas?
<mdrjr>
I think that 4212 and 4412 uses a HDMI IP very look-alike with 5250. But I don't think that 4212/4412 has the same capabilities as 5250 :(
<tfiga>
mdrjr: hmm
<tfiga>
AFAIK those values are more or less SoC-specific
<tfiga>
so you would need to get values for 71 MHz for Exynos4x12 from hardware team
<mdrjr>
yep. Asked my boss to ping SLSI engs.
<mdrjr>
tfiga: this patch will probably cause a black screen on 4412 boards if they attempt to use 1280x800.
<mdrjr>
[ 1.894674] [drm:hdmi_v14_timing_apply] *ERROR* hdmiphy's pll could not reach steady state.
<tfiga>
mdrjr: I guess this means that settings for 5250 and 4x12 should be separated, though
<tfiga>
looking at old v4l2 driver in media/platform/s5p-tv, even 4212 differs from 4412 in terms of HDMI PHY settings
<tfiga>
although both datasheets give the same settings
<mdrjr>
tfiga: the funniest part is that those pixel clocks aren't documented. I have almost all datasheets here since 4210 and no SoC claims 71Mhz pixel clock support
<mdrjr>
note I have the non-public version of those