On Thu, Nov 20, 2014 at 10:22:54AM -0800, Kevin Hilman wrote: > Javier Martinez Canillas <javier.martinez at collabora.co.uk> writes: > > > Hello, > > > > For completeness I'll comment what we talked with Kevin on IRC > > since probably this is the same issue that Paolo is facing. > > > > On 11/20/2014 05:41 PM, Kevin Hilman wrote: > >> Peach # setenv preboot "usb start; sleep 1"setenv bootargs > >> console=tty1 console=ttySAC3,115200 debug earlyprintk rw > >> root=/dev/mmcblk1p3 rootwait rootfstype=ext3 > > > > My kernel command line is almost the same with the difference that I'm using > > clk_ignore_unused and I just checked that not passing that parameter, makes > > linux-next to hang showing the same output log that Kevin reported. > > Ah! Good find. I confirm that adding clk_ignore_unused is getting me > booting again, but of course that is just masking a problem, so I hope > someone can shed light on which clock isn't being correctly managed. > > Might I also suggest that folks have their default command-line to *not* > use clk_ignore_unused, since it's primary job is to workaround clock > bugs.
i'm testing kgene/for-next (not linux-next), with: flag at peachpi:~/linux$ cat /proc/cmdline console=tty1 console=ttySAC3,115200 debug earlyprintk rw rootwait root=/dev/mmcblk1p3 adding clk_ignore_unused didn't make any difference: it hangs on boot showing a black screen with backlight on. vanilla kgene/for-next as of today: 7552917 Revert "ARM: exynos_defconfig: Enable options for display panel support" ff0391a Merge branch 'v3.19-samsung-defconfig' into for-next 26c6283 Merge branch 'v3.18-samsung-fixes' into for-next cf864fd Merge branch 'v3.18-samsung-defconfig' into for-next 98b6380 ARM: exynos_defconfig: Enable max77802 rtc and clock drivers 839275c ARM: exynos_defconfig: Use 16 minors per MMC block device 0526f27 ARM: dts: Explicitly set dr_mode on exynos5250-snow fc14f9c Linux 3.18-rc5 ... plus 5e1e068 arm: dts: Exynos5: Use pmu_system_controller phandle for dp phy 36d908e drm/exynos: dp: Remove support for unused dptx-phy 624bff2 POSTED: mfd: syscon: Decouple syscon interface from syscon devices 68944e3 Revert "Revert "ARM: exynos_defconfig: Enable options for display panel support"" vanilla exynos_defconfig with SND_SOC_SNOW disabled. I should probably try linux-next at this point, but i wonder if people who reported kgene/for-next working were testing with a vanilla exynos_defconfig on a peach pi. -- bye, p.
