On Wed, Feb 15, 2017 at 04:54:07PM -0500, Christopher Covington wrote: > The Qualcomm Datacenter Technologies QDF2400 family of SoCs contains a > custom (non-PrimeCell) implementation of the SBSA UART. Occasionally the > BUSY bit in the Flag Register gets stuck as 1, erratum 44 for both 2432v1 > and 2400v1 SoCs.Checking that the Transmit FIFO Empty (TXFE) bit is 0, > instead of checking that the BUSY bit is 1, works around the issue. Note > this in the customary location. To minimize conflicts, this documentation > update is separate from the code changes, "tty: pl011: Work around QDF2400 > E44 stuck BUSY bit". > > Signed-off-by: Christopher Covington <cov@xxxxxxxxxxxxxx> > Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> > Acked-by: Mark Rutland <mark.rutland@xxxxxxx> > Acked-by: Timur Tabi <timur@xxxxxxxxxxxxxx> > --- > Documentation to go with https://patchwork.kernel.org/patch/9575103/ Please poke me when that goes into -next. I don't want to merge the doc until the patch is queued too. Thanks, Will -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
