Hello Krzysztof, On 03/27/2015 03:29 PM, Krzysztof Kozlowski wrote: > 2015-03-23 11:49 GMT+01:00 Javier Martinez Canillas > > I looked at the DP and FIMD drivers and with great help of Andrzej > Hajda found the issue: the FIMD driver does not enable DP clock > (DP_MIE_CLKCON register). The process looks like: > 1. Bootloader sets the DP_MIE_CLKCON to proper value. > 2. FIMD is probed, DP power domain is on. > 3. FIMD is deffered, DP power domain is turned off. > 4. The FIMD registers are reset so DP clock is turned off. > 5. DP driver is probed, DP power domain is turned on but clock is not enabled. >
Great! I knew it was some setup missing that was made by the boot-loader. > I'll do some more testing and sent a patch for it till end of Monday > so I think we should not revert this commit. > Agree, I of course preferred to fix the actual cause instead of relying on the boot-loader to do the initialization but I wasn't able to figure it out so I posted this patch to revert the commit in the meantime. > Best regards, > Krzysztof > Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
