* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits)
sh: Convert sh to use read/update_persistent_clock
sh: Move PMB debugfs entry initialization to later stage
sh: Fix up flush_cache_vmap() on SMP.
sh: fix up MMU reset with variable PMB mapping sizes.
sh: establish PMB mappings for NUMA nodes.
sh: check for existing mappings for bolted PMB entries.
sh: fixed virt/phys mapping helpers for PMB.
sh: make pmb iomapping configurable.
sh: reworked dynamic PMB mapping.
sh: Fix up cpumask_of_pcibus() for the NUMA build.
serial: sh-sci: Tidy up build warnings.
sh: Fix up ctrl_read/write stragglers in migor setup.
serial: sh-sci: Add DMA support.
dmaengine: shdma: extend .device_terminate_all() to record partial transfer
sh: merge sh7722 and sh7724 DMA register definitions
sh: activate runtime PM for dmaengine on sh7722 and sh7724
dmaengine: shdma: add runtime PM support.
dmaengine: shdma: separate DMA headers.
dmaengine: shdma: convert to platform device resources
dmaengine: shdma: fix DMA error handling.
...
Currently if the driver fails to register on port, the kernel
crashes with the following stack:
cpu 0x1: Vector: 300 (Data Access) at [c0000000e0303090]
pc: c00000000039aa74: .__mutex_lock_slowpath+0x44/0x10c
lr: c00000000039aa58: .__mutex_lock_slowpath+0x28/0x10c
[c0000000e03033c0] c00000000026b074 .uart_remove_one_port+0xbc/0x16c
[c0000000e0303460] d0000000000e0554 .jsm_remove_uart_port+0x8c/0x10c [jsm]
[c0000000e03034f0] d0000000000dc034 .jsm_remove_one+0x34/0x108 [jsm]
[c0000000e0303590] c0000000001f4aa0 .pci_device_remove+0x48/0x74
...
This patch just fixes the code flow to abort the load when an
error is detected.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If jsm fails to load, then remove the uart stuff, otherwise,
the things (as files), will be there forever (even when the module
is unloaded). If you try to reload the module, the following message
appears:
kobject_add_internal failed for ttyn1 with -EEXIST, don't try to
register things with the same name in the same directory.
This patch remove the uart things when the driver fails.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
MFD_TIMBERDALE doesn't appear to be defined anywhere. However the code in
question can build happily without platform specifics so remove the check
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The bcm6358 CPU has two uarts, make it possible to use the second one.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If we don't disable the DMA TX channel, an inopportune timeout will
trigger the interrupt handler and may cause a dead lock with the spin_lock.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For UARTs that have dedicated hardware flow control support, there will be
no gpios to request/free as they are part of the normal peripheral pins.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The platform code doesn't have to provide platform data to get sensible
default behaviour from the imx serial driver.
This patch does not handle NULL dereference in the IrDA case, which still
requires a valid platform data pointer (in imx_startup()/imx_shutdown()),
since I don't know whether there is a sensible default behaviour, or
should the operation just fail cleanly.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Oskar Schirmer <os@emlix.com>
Cc: Fabian Godehardt <fg@emlix.com>
Cc: Daniel Glöckner <dg@emlix.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Permits using KGDB over the console with the atmel_serial driver.
[akpm@linux-foundation.org: s/barrier/cpu_relax/]
Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Augment the UPF_FIXED_TYPE logic, which currently applies to UART ports
provisioned using platform_device_register.
The suggested patch applies same logic into 'serial8250_register_ports',
making UART ports provisioned using early_serial_setup inherit their
properties from the uart_config entry.
Signed-off-by: Shmulik Ladkani <shmulik@jungo.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fit blackfin uart over sport driver into common uart inftrastructure. It
is based on the early platform interfaces to get the platform data early
when the console is initilized.
1. Enable sport uart driver to change uart baud, data bit, stop bit at
runtime. Bind the index of uart device nodes to physical index of
sports.
2. Move all platform data into arch specific board files. Register
and probe platform device data in both early and normal stages.
3. Console is registered in sport uart driver as well.
4. Remove 500 us block waiting in sport tx stop code by putting a
dummy data into tx fifo to make sure the sport tx stops when all bytes
are shifted out except for the dummy data.
5. clean up a bit and fix up coding style.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Support using DMA for sending and receiving data over SCI(F) interfaces of
various SH SoCs.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Linus Torvalds
Breno Leitao
Alan Cox
Maxime Bizon
Mike Frysinger
Sonic Zhang
Graf Yang
Ben Hutchings
Roel Kluin
Kiros Yeh
Baruch Siach
Ira W. Snyder
Albin Tonnerre
Thiago Farina
Shmulik Ladkani
sonic zhang
Paul Mundt
Guennadi Liakhovetski