[RFC PATCH 1/1] drm/exynos: Move platform drivers registration to module init
On Thu, Nov 20, 2014 at 10:22:54AM -0800, Kevin Hilman wrote: > Javier Martinez Canillas 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.
[RFC PATCH 1/1] drm/exynos: Move platform drivers registration to module init
On Thu, Nov 20, 2014 at 03:22:23PM +0530, Vivek Gautam wrote: > > On linux-samsung tree the only patch that's missing apart from dptx-phy > patches > is the syscon patch from Pankaj Dubey: > b784b98 mfd: syscon: Decouple syscon interface from platform devices > > So with below git hash, linux-samsung/for-next display works fine along with > other devices that request PMU system controller : > > 7bd219e drm/exynos: dp: Remove support for unused dptx-phy > e8f21fd arm: dts: Exynos5: Use pmu_system_controller phandle for dp phy > 7099bde Revert "Revert "ARM: exynos_defconfig: Enable options for > display panel support"" > 713a994 mfd: syscon: Decouple syscon interface from platform devices > 7552917 Revert "ARM: exynos_defconfig: Enable options for display > panel support" /* This is Kukjin's for-next today */ > 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 are you using a clean exynos_defconfig? don't you need Javier's "drm/exynos: Move platform drivers registration to module init" patch too? kgene/for-next at: 7552917 Revert "ARM: exynos_defconfig: Enable options for display panel support" 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"" hangs with a black screen (albeit backlight seems to be on) on boot. I'm betting on Javier's patch at this point (i even tried disabling SND_SOC_SNOW but that didn't help). -- bye, p.
[PATCH V8 00/14] drm/exynos: few patches to enhance bridge chip support
On Wed, Nov 19, 2014 at 12:20:53PM +0100, Javier Martinez Canillas wrote: > > If someone else is interested, I've pushed a branch [0] with 3.18-rc5 + all > the needed patches. > > Ajay, feel free to add to your series: > > Tested-by: Javier Martinez Canillas > > Best regards, > Javier > > [0]: git://git.collabora.co.uk/git/user/javier/linux.git wip/exynos/dp-integ doesn't peach pi require the same dts modification as peach pit/snow? -- bye, p.
[PATCH V8 00/14] drm/exynos: few patches to enhance bridge chip support
On Wed, Nov 19, 2014 at 10:35:40AM +0100, Javier Martinez Canillas wrote:
> Hello Ajay,
>
> On 11/18/2014 07:20 AM, Ajay kumar wrote:
> > On Sat, Nov 15, 2014 at 3:24 PM, Ajay Kumar
> > wrote:
> >> This series is based on master branch of Linus tree at:
> >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>
> I applied your series on top of 3.18-rc5 + linux-next's commit:
>
> 0ef76ae ("ARM: exynos_defconfig: Enable options for display panel support").
>
> I think you should had mentioned what other patches are needed as a
> dependency since I spent quite a bit of time figuring out why the
> ps8622 bridge driver probe was always deferred due of_drm_find_panel()
> failing and then I noticed that a patch from linux-next was needed:
>
> e35e305 ("drm/panel: simple: Add AUO B116XW03 panel support")
>
> With that commit the ps8622 drm bridge driver probe succeed but I still
> don't have display working on an Exynos5240 Peach Pit, the kernel log shows:
>
> platform 145b.dp-controller: Driver exynos-dp requests probe deferral
> exynos-drm exynos-drm: bound 1440.fimd (ops fimd_component_ops)
> exynos-drm exynos-drm: failed to bind 145b.dp-controller (ops
> exynos_dp_ops): -517
> exynos-drm exynos-drm: master bind failed: -517
> platform 145b.dp-controller: Driver exynos-dp requests probe deferral
do you have this in your dmesg?
...
exynos-dp-video-phy 10040728.video-phy: Failed to lookup PMU regmap
...
to get a working framebuffer out of linus 318rc4 on my peach pi, i had
to cherry pick these 3 patches:
arm: dts: Exynos5: Use pmu_system_controller phandle for dp phy
drm/exynos: dp: Remove support for unused dptx-phy
ARM: exynos_defconfig: Enable options for display panel support
Check if you have those.
--
bye,
p.
