On 07/17/2013 04:23 PM, Mikko Perttunen wrote: > On 07/17/2013 11:17 AM, Wei Ni wrote: >> On 07/16/2013 07:14 PM, Wei Ni wrote: >>> On 07/16/2013 01:13 AM, Stephen Warren wrote: >>>> On 07/15/2013 10:48 AM, Stephen Warren wrote: >>>>> On 07/12/2013 01:49 AM, Wei Ni wrote: >>>>>> Enable thermal sensor lm90 for Tegra30 Cardhu and Tegra114 Dalmore. >>>>> >>>>> I have applied the series to Tegra's for-3.12/dt branch. >>>> >>>> Actually, I see the following on Dalmore (although Cardhu works): >>>> >>>> [ 29.448539] lm90 0-004c: Register 0x4 read failed (-121) >>>> [ 29.453930] lm90 0-004c: Failed to read convrate register! >>>> [ 29.460034] lm90 0-004c: Register 0x3 read failed (-121) >>>> [ 29.465408] lm90 0-004c: Initialization failed! >>>> >>>> So, there's something wrong here, and I've dropped the patch for >>>> Dalmore. Does this patch actually work for you? >>>> >>> I test it with the Chrome u-boot, the lm90 works fine. >>> But today, if I tried to use the uboot from >>> git://git.denx.de/u-boot-tegra.git, I can repo your errors, it seems the >>> i2c can't work, the lm90 driver read register failed. >>> I traced it, but can't find the root cause yet. >> >> Hi, Stephen >> I found the root cause. >> In the Chrome u-boot, it will turn on the regulator for the lm90, but in >> the upstream u-boot, it didn't do it. >> I think this regulator should be handled in the kernel driver, but it >> seems the regulator palmas tps65913 didn't be supported on the dalmore yet. >> So may be we have to wait the palmas ready on dalmore. > > A patch to enable tps65913 on dalmore has already been posted a couple > of days > ago by Laxman Dewangan, so this shouldn't be too problematic. Oh, great, I will look it. > >> >> Do you have any suggestions? >> >> Thanks. >> Wei. >> >>> -- >>> 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 >> -- 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
