Hi Gustavo, I think Thierry already fixed it. Check this. http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/tree/drivers/gpu/drm/bridge/Kconfig Regards, Ajay On Thu, Jan 29, 2015 at 7:59 PM, Gustavo Padovan <gustavo@xxxxxxxxxxx> wrote: > Hi Ajay, > > 2015-01-20 Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx>: > >> Use drm_bridge helpers to modify the driver to support >> i2c driver model. >> >> Signed-off-by: Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx> >> Acked-by: Inki Dae <inki.dae@xxxxxxxxxxx> >> Tested-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx> >> Tested-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx> >> Tested-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx> >> Tested-by: Sjoerd Simons <sjoerd.simons@xxxxxxxxxxxxxxx> >> --- >> drivers/gpu/drm/bridge/Kconfig | 2 + >> drivers/gpu/drm/bridge/ptn3460.c | 124 +++++++++++++++++++++---------- >> drivers/gpu/drm/exynos/exynos_dp_core.c | 22 ------ >> 3 files changed, 86 insertions(+), 62 deletions(-) >> >> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig >> index 884923f..4254c2b 100644 >> --- a/drivers/gpu/drm/bridge/Kconfig >> +++ b/drivers/gpu/drm/bridge/Kconfig >> @@ -1,5 +1,7 @@ >> config DRM_PTN3460 >> tristate "PTN3460 DP/LVDS bridge" >> depends on DRM >> + depends on OF && I2C > > Adding I2C here is causing this circular dependency: > > scripts/kconfig/conf --silentoldconfig Kconfig > drivers/video/fbdev/Kconfig:5:error: recursive dependency detected! > drivers/video/fbdev/Kconfig:5: symbol FB is selected by DRM_KMS_FB_HELPER > drivers/gpu/drm/Kconfig:34: symbol DRM_KMS_FB_HELPER depends on > DRM_KMS_HELPER > drivers/gpu/drm/Kconfig:28: symbol DRM_KMS_HELPER is selected by > DRM_PTN3460 > drivers/gpu/drm/bridge/Kconfig:1: symbol DRM_PTN3460 depends on I2C > drivers/i2c/Kconfig:7: symbol I2C is selected by FB_DDC > drivers/video/fbdev/Kconfig:59: symbol FB_DDC is selected by FB_CYBER2000_DDC > drivers/video/fbdev/Kconfig:374: symbol FB_CYBER2000_DDC depends on > FB_CYBER2000 > drivers/video/fbdev/Kconfig:362: symbol FB_CYBER2000 depends on FB > > To solve this we just need to remove I2C from depends as DRM already selects > I2C. This was already fixed by: > > > commit 90bde571ad194adb039cb92a11a5b346f15eb610 > Author: Arnd Bergmann <arnd@xxxxxxxx> > Date: Tue Mar 25 12:06:46 2014 +0100 > > drm/bridge: PTN3460 needs DRM_KMS_HELPER > > The recently added PTN3460 device driver uses interfaces that > are provided by the KMS helper infrastructure, so we should > explicitly select that to avoid this linker error: > > ERROR: "drm_helper_probe_single_connector_modes" [drivers/gpu/drm/bridge/ptn3460.ko] undefined! > ERROR: "drm_helper_connector_dpms" [drivers/gpu/drm/bridge/ptn3460.ko] undefined! > > We have to drop the I2C dependency to avoid a circular dependency > chain, but that's ok because DRM already selects I2C. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx> > > > But you may have introduced it again on a rebase. The following patch fixes it: > > diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig > index 990b4b2..946d1ef 100644 > --- a/drivers/gpu/drm/bridge/Kconfig > +++ b/drivers/gpu/drm/bridge/Kconfig > @@ -1,7 +1,6 @@ > config DRM_PTN3460 > tristate "PTN3460 DP/LVDS bridge" > - depends on DRM > - depends on OF && I2C > + depends on DRM && OF > select DRM_KMS_HELPER > select DRM_PANEL > ---help--- > > > Gustavo -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
