* Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> [151006 08:04]: > On Tue, Oct 06, 2015 at 02:44:25AM -0700, Tony Lindgren wrote: > > > > Hmm DT-based boot finds the MMC card for LDP, dmesg below from DT boot [1]. > > Looks like you're on on -rc4 and not -rc3. My guess is that MMC is not > > working for you with DT-based booting because you don't seem to have > > CONFIG_REGULATOR_PBIAS in your seed config for. Care to try enabling that > > for both your omap3 and omap4 seed config files? > > This is precisely the kind of crap I'm objecting to. New kernel versions > come along, and things break because people add extra Kconfig symbols that > previous versions did not rely upon - and there's no communication of > what's required for new kernel versions. > > This stuff needs documenting, so that people are aware what changes they > need to make - please put something in Documentation/arm/OMAP which > tracks what new additions are required to the Kconfig to keep things > working. Good idea, how about something like the following? AFAIK that's the only .config option needed as MFD_SYSCON is selected by Kconfig already. Regrds, Tony 8< ---------- From: Tony Lindgren <tony@xxxxxxxxxxx> Date: Tue, 6 Oct 2015 08:33:16 -0700 Subject: [PATCH] Documentation: ARM: List new omap MMC requirements Earlier the PBIAS regulator was optional, not so with recent omap_hsmmc changes. To make things easier for people with custom .config files, let's add minimal documentation for it as suggested by Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>. Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> --- /dev/null +++ b/Documentation/arm/OMAP/README @@ -0,0 +1,7 @@ +This file contains documentation for running mainline +kernel on omaps. + +KERNEL NEW DEPENDENCIES +v4.3+ Update is needed for custom .config files to make sure + CONFIG_REGULATOR_PBIAS is enabled for MMC1 to work + properly. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
