On Thu, Mar 08, 2018 at 04:35:07PM +1300, Joshua Scott wrote: > The previous implementation has had a detrimental effect on devices using > high bitrates (bluetooth), as the fifo being non-empty for a single check > would result in a 10 µs delay. > > This patch updates the code such that it will allow 1000 retries to fail > before delaying by 1 µs for the remaining retry limit. > > In addition, the maximum number of retries has been increased, both to > cover the decreased delay length, and to cover a new worst-case seen on > the Armada 385 SoC. "dmesg ; resize", filling the buffer with text to > output before reconfiguring, required 13 ms to empty the buffer and avoid > losing characters. > --- > drivers/tty/serial/8250/8250_dw.c | 11 +++++++++-- > 1 file changed, 9 insertions(+), 2 deletions(-) No signed-off-by :( This conflicts with Andy's patch, so I'm dropping both from my patch queue until you both work this out... thanks, greg k-h -- 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
