- Feb 08, 2008
-
-
Haavard Skinnemoen authored
Replace two instances of barrier() with cpu_relax() since that's the right thing to do when busy-waiting. This does not actually change anything since cpu_relax() is defined as barrier() on both ARM and AVR32. Signed-off-by:
Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by:
Andrew Victor <linux@maxim.org.za> Tested-by:
Marc Pignat <marc.pignat@hevs.ch> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
-
Remy Bohmer authored
Clean up the atmel_serial driver to conform the coding rules. It contains no functional change. Signed-off-by:
Remy Bohmer <linux@bohmer.net> Signed-off-by:
-
Alan Cox authored
Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
-
Alan Cox authored
Signed-off-by:
-
Alan Cox authored
Signed-off-by:
-
Alan Cox authored
Signed-off-by:
-
Alan Cox authored
Signed-off-by:
-
Alan Cox authored
Signed-off-by:
-
Alan Cox authored
Signed-off-by:
-
Alan Cox authored
Signed-off-by:
-
- Feb 07, 2008
-
-
Jiri Slaby authored
Signed-off-by:
Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
-
Maciej W. Rozycki authored
This is a set of changes to implement proper resource management in the driver, including iomem space reservation and operating on physical addresses ioremap()ped appropriately using accessory functions rather than unportable direct assignments. Some adjustments to code are made to reflect the architecture of the interface, which is a centrally controlled multiport (or, as referred to from DEC documentation, a serial line multiplexer, going up to 8 lines originally) rather than a bundle of separate ports. Types are changed, where applicable, to specify the width of hardware registers explicitly. The interrupt handler is now managed in the ->startup() and ->shutdown() calls for consistency with other drivers and also in preparation to handle the handover from the initial firmware-based console gracefully. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
-
Maciej W. Rozycki authored
Replace all casts from "struct uart_port *" to "struct dz_port *" with a construct based on container_of(). This makes the conversion work irrespective of where the former struct is located within the latter. By popular request I have implemented it as an inline function rather than a macro this time. Signed-off-by:
-
Maciej W. Rozycki authored
A set of changes to the way termios settings are propagated to the serial port hardware. The DZ11 only supports a selection of fixed baud settings, so some requests may not be fulfilled. Keep the old setting in such a case and failing that resort to 9600bps. Also add a missing update of the transmit timeout. And remove the explicit encoding of the line selected from writes to the Line Parameters Register as it has been preencoded by the ->set_termios() call already. Finally, remove a duplicate macro for the Receiver Enable bit. Signed-off-by:
-
Maciej W. Rozycki authored
Handle the read and ignore status masks correctly. Handle the BREAK condition as expected: a framing error with a null character is a BREAK, any other framing error is a framing error indeed. Signed-off-by:
-
Maciej W. Rozycki authored
The ->start_tx(), ->stop_tx() and ->stop_rx() backends are called with the port's lock already taken. Remove locking from within them and wrap around calls as necessary. Signed-off-by:
-
Maciej W. Rozycki authored
Rename the serial console structure so that `modpost' does not complain about a reference to an "init" section -- "_console" is magic. Signed-off-by:
-
Maciej W. Rozycki authored
Reformat the Kconfig entries and update descriptions for accuracy. Select the driver by default for configurations of interest. For the curious: 32BIT means only 32-bit DECstations support the device, not that the driver is not 64-bit clean; I have not checked that either though. Signed-off-by:
-
Maciej W. Rozycki authored
Sort the header inclusions, add a few that are needed but pulled indirectly only and remove ones that are not really used. Signed-off-by:
-
Maciej W. Rozycki authored
Well, panic() is a little bit undue if request_irq() fails; there is probably no need to justify it any further. Handle the case gracefully, by unregistering the driver. Signed-off-by:
-
Maciej W. Rozycki authored
Polled transmission is tricky enough with the DZ11 design. While "loop" is set to a high value, conceptually you are not allowed to transmit without checking whether the device offers the right transmission line (yes, it is the device that selects the line -- the driver has no control over it other than disabling the transmitter offered if it is the wrong one), so the loop has to be run at least once. Well, the '1977 or PDP11 view of how serial lines should be handled... Except that the serial interface used to be quite an impressive board back then rather than chip. Signed-off-by:
-
Maciej W. Rozycki authored
Remove unused module function prototypes that would not even build if enabled. Signed-off-by:
-
Grant Likely authored
When rebasing one of the mpc5200 psc UART patches I made a mistake and damaged the patch. This patch fixes the compile failure introduced in commit 25ae3a07 Signed-off-by:
Grant Likely <grant.likely@secretlab.ca>
-
- Feb 06, 2008
-
-
John Rigby authored
Add 512x support using the psc_ops framework established with the previous patch. All 512x PSCs share the same interrupt so add IRQF_SHARED to irq flags. Signed-off-by:
John Rigby <jrigby@freescale.com> Signed-off-by:
-
John Rigby authored
PSC devices are different between the mpc5200 and the mpc5121 this patch localizes the differences in preparation for adding mpc5121 support to the psc uart driver. Signed-off-by:
-
Thomas Bogendoerfer authored
New serial driver for SC2681/SC2691 uarts. Older SNI RM400 machines are using these chips for onboard serial ports. Signed-off-by:
Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Torben Mathiasen <device@lanana.org> Signed-off-by:
-
Thomas Bogendoerfer authored
- Use SGI_HAS_ZILOG for IP22_ZILOG depends - remove IP22 from description, because the driver works on more than IP22 SGI machines Signed-off-by:
-
Jeff Garzik authored
Mostly in and around irq handlers. Signed-off-by:
Jeff Garzik <jgarzik@redhat.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "Luck Tony" <tony.luck@intel.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by:
Dmitry Torokhov <dtor@mail.ru> Cc: Karsten Keil <kkeil@suse.de> Acked-by:
"John W. Linville" <linville@tuxdriver.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: David Brownell <david-b@pacbell.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Acked-by:
Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by:
Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by:
-
Grant Likely authored
Probing of the console at console_initcall time is broken. It tries to call memory allocation routines which aren't initialized yet. Problem solved by removing the early probe entirely. The console init is called again anyway after the uartlite device is initialized and the memory allocation routines can be called safely. Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk>
-
Stephen Neuendorffer authored
Mainly, this involves two changes: 1) xilinx->xlnx (recognized standard is to use the stock ticker) 2) In order to have the device tree focus on describing what the hardware is as exactly as possible, the compatible strings contain the full IP name and IP version. Signed-off-by:
Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by:
-
Grant Likely authored
Fix compile errors in the xilinxfb, xsysace and uartlite drivers used by the Xilinx Virtex platform Signed-off-by:
-
- Feb 05, 2008
-
-
Greg Ungerer authored
Use ARRAY_SIZE macroto get maximum ports in ColdFire serial driver. Signed-off-by:
Greg Ungerer <gerg@uclinux.org> Signed-off-by:
-
Mark A. Greer authored
The clock to generate the desired baudrate with the MPSC is first divided by the Baud Rate Generator (BRG) and then by the MPSC itself. So, when the BRG divider is changed, the MPSC divider must also be changed to generate the correct baudrate. During MPSC initialization, the BRG divider is changed but the MPSC divider isn't changed until much later. This results in some printk's coming out garbled. To fix that, set the MPSC divider at the same time that the BRG divider is changed. Signed-off-by:
Mark A. Greer <mgreer@mvista.com> Signed-off-by:
-
Alan Cox authored
Coding style tweaks and printk levels. Signed-off-by:
-
Alan Cox authored
Invalid speeds are forced to 9600. Update the code for this to encode new style baud rates properly. Signed-off-by:
-
Russell King authored
Some ports seem to be unable to drain their transmitters on shut down. Such a problem can occur if the port is programmed for hardware imposed flow control, characters are in the FIFO but the CTS signal is inactive. Normally, this isn't a problem because most places where we wait for the transmitter to drain have a time-out. However, there is no timeout in the suspend path. Give a port 30ms to drain; this is an arbitary value chosen to avoid long delays if there are many such ports in the system, while giving a reasonable chance for a single port to drain. Should a port not drain within this timeout, issue a warning. Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Acked-by:
Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
-
Russell King authored
When we boot, serial ports remain in low power mode until they're used either by userspace or for the kernel console. However, if you suspend the system, and then resume, all serial ports will be taken out of low power mode. This is bad news for embedded devices where this can mean higher power consumption. Only bring a serial port out of low power mode if the port is being used as the kernel console, or is in use by userspace. Signed-off-by:
-
Will Newton authored
Allow the private_data field to be specified in platform_data for the standard 8250/16550 UART. This field is used by DW APB type UARTs and without this patch it's only possible to set this field when registering the port by hand. If private_data is not set then the driver will potentially oops with a NULL pointer dereference. Signed-off-by:
Will Newton <will.newton@gmail.com> Acked-by:
-
Krauth.Julien authored
Add ADDI-DATA GmbH communication cards to 8250_pci driver. Supported cards are: APCI-7300, APCI-7420, APCI-7500, APCI-7800 APCI-7300-2, APCI-7420-2, APCI-7500-2 APCI-7300-3, APCI-7420-3, APCI-7500-3, APCI-7800-3 [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Krauth J. <krauth.julien@addi-data.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Alan Cox <alan@redhat.com> Signed-off-by:
-
Jiri Olsa authored
Remove dead config symbol. Signed-off-by:
Jiri Olsa <olsajiri@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ben Dooks <ben@fluff.org> Cc: Alan Cox <alan@redhat.com> Signed-off-by:
-
