On 10/25/2012 11:37 PM, Stephen Warren wrote: > On 10/25/2012 12:32 AM, Mark Zhang wrote: >> On 10/23/2012 01:14 AM, Stephen Warren wrote: > ... >>> I don't recall why pta was defined to be HDMI. The issue isn't that this >>> patch changes the pinmux selection for the pta pingroup, but simply that >>> both the pinctrl node's state definition, and the new I2C mux node's >>> state definition both attempt to configure pingroup pta. The solution is >>> most likely to simply remove the pta configuration from the main pinctrl >>> node. >> >> Understood. I tried to remove the hdmi function definition of pta >> pingroup yesterday then found HDMI can't work anymore. The EDID of HDMI >> monitor can't be fetched. After some debugging, I have found that it's >> caused by "i2c-mux-pinctrl" driver is loaded after drm driver. That >> makes drm driver can't get EDID data via this i2c mux adapter because it >> doesn't exist at that time. So I think we need to promote the load level >> of "i2c-mux-pinctrl" driver. Any other ideas? > > (BTW, your message that I'm replying to wasn't word-wrapped correctly) > Yes. I did some settings in my Thunderbird, how about now? > No, i2c-mux-pinctrl shouldn't need to change. It sounds like tegra-drm > isn't supporting deferred probe correctly; when it needs access to an > I2C adapter that doesn't exist, it should defer its own probe until the > I2C adapter does exist. Okay. Yes, tegra-drm doesn't support deferred probe now. I'll talk with Thierry and figure out how to handle this. Thanks. > -- > To unsubscribe from this list: send the line "unsubscribe linux-tegra" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
