On 12/19/2013 08:16 PM, Wei Ni wrote: > On 12/20/2013 06:36 AM, Paul Walmsley wrote: >> Hi Jean, >> >> On Thu, 19 Dec 2013, Jean Delvare wrote: >> >>> Adding Wei who added interrupt support to the lm90 driver, and moving >>> to the appropriate list. >> >> Thanks for the speedy response and list correction. >> >>> On Thu, 19 Dec 2013 02:08:45 -0800, Paul Walmsley wrote: >>>> Just FYI, the Tegra114 Dalmore board here reports an unhandled IRQ about >>>> two minutes after boot: >>>> >>>> [ 120.950839] irq 308: nobody cared (try booting with the "irqpoll" option) >> >> ... >> >>>> [ 121.019825] handlers: >>>> [ 121.022117] [<c0064408>] irq_default_primary_handler threaded >>>> [<c0384764>] lm90_irq_thread >>>> [ 121.030418] Disabling IRQ #308 >>>> >>>> This is on next-20131218. >>> >>> Which temperature chip is the Tegra114 Dalmore board using? >> >> It's an NCT72. >> >>> Is the interrupt shared with something else? >> >> Doesn't look like it. From /proc/interrupts: >> >> 308: 74181 0 0 0 GPIO 116 lm90 > > Hi, Paul > When I developed it, my Dalmore board used GPIO 116 (GPIO_PO4) as > interrupt line, but according to our downsttream kernel, there also have > other Dalmore board used GPIO 190 (GPIO_PX6). So I think your > problems was caused by it. Please try to change the interrupt line in > dts file. Paul, which board revision of Dalmore do you have? According to the schematics, Dalmore A02 and A03 had TEMP_ALERT routed to GPIO PX6, and that was the only option. Dalmore A04 and A05 can route TEMP_ALERT to either GPIO PO4, or GPIO PX6 using 0-Ohm resistors, with GPIO PO4 being the default stuffing option. Note that upstream Linux *only* supports Dalmore A04, and no other version. If you have a different board revision, it's not expected to work with upstream. IIRC, Eric Brower volunteered to track down the correct board revision for people working on upstream. -- 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
