On Tuesday, April 19, 2016 7:50:49 PM CDT Russell King - ARM Linux wrote: > On Tue, Apr 19, 2016 at 01:34:23PM -0500, Dennis Gilmore wrote: > > Hi All, > > > > on all of my i.MX6 systems imx-ipuv3-crtc ius not getting automatically > > loaded. Everything is built as a module > > > > CONFIG_DRM_IMX=m > > CONFIG_DRM_IMX_FB_HELPER=m > > CONFIG_DRM_IMX_HDMI=m > > CONFIG_DRM_IMX_IPUV3=m > > CONFIG_DRM_IMX_LDB=m > > CONFIG_DRM_IMX_PARALLEL_DISPLAY=m > > CONFIG_DRM_IMX_TVE=m > > CONFIG_IMX_IPUV3_CORE=m > > > > The result is that until I log in via serial or ssh and modprobe the > > module there is no display. I suspect that there is some devicetree > > glue missing 4.4 and 4.5 seem to both be effected. > > DT doesn't come into it for imx-ipuv3-crtc - these platform devices are > created by drivers/gpu/ipu-v3/ipu-common.c itself. > > drivers/gpu/drm/imx/ipuv3-crtc.c contains the proper module alias which > should result in the module loaded at boot time when the imx-ipuv3-crtc > devices are created. > > Could the problem be that imx-ipu-v3 isn't being loaded? However, again, > it looks to me like everything is correct there. > > Are you saying that this used to work in older kernel versions like 4.3, > but stopped in 4.4? yers it used to work and stopped working. I would need to go back and test old kernels to figure out where it broke. [root@localhost ~]# lsmod |grep imx imx_pcm_dma 1455 1 snd_soc_fsl_spdif snd_soc_imx_spdif 2168 1 snd_soc_core 162930 4 imx_pcm_dma,snd_soc_fsl_asrc,snd_soc_imx_spdif,snd_soc_fsl_spdif imx_ipu_v3 71290 0 imx_sdma 15739 2 ci_hdrc_imx 7191 0 usbmisc_imx 6460 1 ci_hdrc_imx dw_hdmi_imx 3631 0 ci_hdrc 34482 1 ci_hdrc_imx imx2_wdt 4245 0 dw_hdmi 14561 1 dw_hdmi_imx imx_thermal 7056 0 sdhci_esdhc_imx 12018 0 sdhci_pltfm 4706 1 sdhci_esdhc_imx ahci_imx 6468 0 sdhci 38284 2 sdhci_pltfm,sdhci_esdhc_imx mmc_core 120546 5 mmc_block,sdhci,brcmfmac,btsdio,sdhci_esdhc_imx libahci_platform 7526 1 ahci_imx i2c_imx 16259 0 imxdrm 7776 1 dw_hdmi_imx drm_kms_helper 116603 2 dw_hdmi,imxdrm pwm_imx 3786 1 drm 309675 6 dw_hdmi,drm_kms_helper,dw_hdmi_imx,etnaviv,imxdrm on a freshly booted system imx-ipu-v3 is loaded however something is missing. Dennis
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