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Groups > linux.kernel > #1496191
| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v6 RESEND] serial: rewrite pxa2xx-uart to use 8250_core |
| Date | 2016-10-06 09:20 +0200 |
| Message-ID | <spb8d-5iS-1@gated-at.bofh.it> (permalink) |
| References | <sm3qx-3lO-17@gated-at.bofh.it> <spalQ-4Lq-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Oct 06, 2016 at 08:25:35AM +0200, Robert Jarzmik wrote: > Robert Jarzmik <robert.jarzmik@free.fr> writes: > > > From: Sergey Yanovich <ynvich@gmail.com> > > > > pxa2xx-uart was a separate uart platform driver. It was declaring > > the same device names and numbers as 8250 driver. As a result, > > it was impossible to use 8250 driver on PXA SoCs. > > > > Upon closer examination pxa2xx-uart turned out to be a clone of > > 8250_core driver. > > > > Workaround for Erratum #19 according to Marvel(R) PXA270M Processor > > Specification Update (April 19, 2010) is dropped. 8250_core reads > > from FIFO immediately after checking DR bit in LSR. > > > > The patch leaves the original SERIAL_PXA driver around. The original > > driver is just marked DEPRECATED in Kconfig and C source. When > > the original driver is considered safe to remove, no changes > > to SERIAL_8250 will be necessary. > > > > Compiling SERIAL_8250_CONSOLE and SERIAL_PXA_CONSOLE even without > > SERIAL_8250_PXA breaks console for SERIAL_PXA. For this reasons, the new > > and the original drivers are made mutually exclusive. > > > > Signed-off-by: Sergei Ianovich <ynvich@gmail.com> > > CC: Heikki Krogerus <heikki.krogerus@linux.intel.com> > > CC: James Cameron <quozl@laptop.org> > > CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > > CC: Robert Jarzmik <robert.jarzmik@free.fr> > > CC: Russell King <linux@arm.linux.org.uk> > > Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> > > [rebased on v4.8] > > Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> > > Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> > > Greg, can you take that into you tty tree please ? Please wait until after the 4.9-rc1 merge window is over before worrying about new patches being applied to my trees... thanks, greg k-h
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[PATCH v6 RESEND] serial: rewrite pxa2xx-uart to use 8250_core Robert Jarzmik <robert.jarzmik@free.fr> - 2016-09-27 18:30 +0200
Re: [PATCH v6 RESEND] serial: rewrite pxa2xx-uart to use 8250_core Robert Jarzmik <robert.jarzmik@free.fr> - 2016-10-06 08:30 +0200
Re: [PATCH v6 RESEND] serial: rewrite pxa2xx-uart to use 8250_core Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-10-06 09:20 +0200
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