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authorSergey Yanovich <ynvich@gmail.com>2016-09-27 19:23:16 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-10-27 17:03:09 +0300
commitab28f51c77cd46189aa5726c98d5153052567a3c (patch)
tree643562e7db907aa2e4685f15c861b9d785604da6 /drivers/tty/serial/Makefile
parent07d9a380680d1c0eb51ef87ff2eab5c994949e69 (diff)
downloadlinux-ab28f51c77cd46189aa5726c98d5153052567a3c.tar.xz
serial: rewrite pxa2xx-uart to use 8250_core
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: 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/Makefile')
-rw-r--r--drivers/tty/serial/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index 1278d376da50..1fa21ec616bd 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_SERIAL_8250) += 8250/
obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o
-obj-$(CONFIG_SERIAL_PXA) += pxa.o
+obj-$(CONFIG_SERIAL_PXA_NON8250) += pxa.o
obj-$(CONFIG_SERIAL_PNX8XXX) += pnx8xxx_uart.o
obj-$(CONFIG_SERIAL_SA1100) += sa1100.o
obj-$(CONFIG_SERIAL_BCM63XX) += bcm63xx_uart.o