On Thu, Mar 8, 2012 at 7:49 PM, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Mon, Feb 27, 2012 at 06:30:20PM +0900, Chanho Min wrote: >> This is another workaroud of 'https://lkml.org/lkml/2012/1/17/104' >> with additional analysis.Bootloader can transfer control to kernel and >> there are some pending interrupts. In this case, RXFE of the flag >> register is set by clearing FEN(LCRH) even if rx data remains in the >> fifo. It seems that the fifo's status is initiailized. Interrupt >> handler can not get any data from data register because of the below >> break condtion. >> >> pl011_fifo_to_tty >> while (max_count--) { >> if (status & UART01x_FR_RXFE) >> break; > > This patch never seemed to be agreed on, so I'm not taking it. > > Can someone, if this is still needed, and everyone agrees on how to > solve it, please send me the needed fix? To me it seems Russell's patch solves part of the problem, and Jong-Sung Kim's patch on top of that solves the entire problem, but Chanho need to come back and tell whether this is the case in practice. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
