- 17 2月, 2010 1 次提交
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由 Anatolij Gustschin 提交于
Currently the support for MPC5121 PSC UART in the mpc52xx_uart driver is broken (only console pre-initialized by the bootloader works). Re-enable it now by providing MPC5121 specific ops for PSCx clock activation, FIFO controller init/uninit and MPC5121 PSC FIFO shared interrupt handling functions. Signed-off-by: NJohn Rigby <jcrigby@gmail.com> Signed-off-by: NAnatolij Gustschin <agust@denx.de> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 15 10月, 2009 1 次提交
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由 Julia Lawall 提交于
As in the commit 9b4a1617, use UPIO_MEM rather than SERIAL_IO_MEM. Both have the same value. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @has_sc@ @@ #include <linux/serial_core.h> @depends on has_sc@ @@ - SERIAL_IO_MEM + UPIO_MEM // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 20 9月, 2009 1 次提交
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由 Alan Cox 提交于
We moved this into uart_state, now move the fields out of the separate structure and kill it off. Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 17 6月, 2009 1 次提交
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由 Wolfgang Denk 提交于
So far, MPC512x used mpc512x_find_ips_freq() to get the bus frequency, while MPC52xx used mpc52xx_find_ipb_freq(). Despite the different clock names (IPS vs. IPB) the code was identical. Use common code for both processor families. Signed-off-by: NWolfgang Denk <wd@denx.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 29 5月, 2009 1 次提交
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由 Roel Kluin 提交于
The check for an overindexing of mpc52xx_uart_{ports,nodes} has an off-by-one. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 05 2月, 2009 1 次提交
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由 Grant Likely 提交于
The MPC5200 PSC device is wired up to a dedicated interrupt line which is never shared. This patch removes the IRQF_SHARED flag from the request_irq() call which eliminates the "IRQF_DISABLED is not guaranteed on shared IRQs" warning message from the console output. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de>
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- 04 2月, 2009 1 次提交
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由 Grant Likely 提交于
There is no reason for the PSC UART driver or the Ethernet driver to require a device_type property. The compatible value is sufficient to uniquely identify the device. Remove it from the driver. The whole 'port-number' scheme for assigning numbers to PSC uarts was always rather half baked and just adds complexity. Remove it from the driver. After this patch is applied, PSC UART numbers are simply assigned from the order they are found in the device tree (just like all the other devices). Userspace can query sysfs to determine what ttyPSC number is assigned to each PSC instance. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de>
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- 21 12月, 2008 3 次提交
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由 Wolfram Sang 提交于
- error cases for mapbase and irq were unbundled - mapped irq now gets disposed on error Signed-off-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Wolfram Sang 提交于
Add RTS/CTS-support for the PSC of the MPC5200B. Tested with a Phytec MPC5200B-IO. Signed-off-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 René Bürgel 提交于
This patch adds the capability to the mpc52xx-uart to report framing errors, parity errors, breaks and overruns to userspace. These values may be requested in userspace by using the ioctl TIOCGICOUNT. Signed-off-by: NRené Bürgel <r.buergel@unicontrol.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 06 12月, 2008 1 次提交
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由 Nick Andrew 提交于
[Folded together as one diff from 3] It should be 'lose', not 'loose'. Signed-off-by: NNick Andrew <nick@nick-andrew.net> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 9月, 2008 1 次提交
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由 Kumar Gala 提交于
Now that arch/ppc is gone we don't need CONFIG_PPC_MERGE anymore remove the dead code associated with !CONFIG_PPC_MERGE. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 21 7月, 2008 1 次提交
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由 Takashi Iwai 提交于
The below is the patch to replace blindly all possible places, including Jack's fixes. Signed-off-by: NTakashi Iwai <tiwai@suse.de> (Reviewed and checked rather than blindly added) Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 02 5月, 2008 1 次提交
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由 Andrew Liu 提交于
mpc52xx_uart_int and __uart_put_char both try to acquire the port->lock. Therefore the function sequence of: mpc52xx_uart_int--> ...-->flush_to_ldisc-->...-->__uart_put_char can potentially trigger a deadlock. To avoid this deadlock a fix similar to that found in the 8250.c serial driver is applied. The deadlock is avoided by releasing the lock before pushing a buffer and reacquiring it when completed. Signed-off-by: NAndrew Liu <shengping.liu@windriver.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 29 4月, 2008 1 次提交
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由 Grant Likely 提交于
If CONFIG_PPC_MPC5121 is not set, then the of_device_id table for the mpc5200 serial driver will not get terminated with a NULL entry. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 16 4月, 2008 1 次提交
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由 Kay Sievers 提交于
Since 43cc71ee, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable serial platform drivers, to re-enable auto loading. NOTE that Kconfig for some of these drivers doesn't allow modular builds, and thus doesn't match the driver source's unload support. Presumably their unload code is buggy and/or weakly tested... [dbrownell@users.sourceforge.net: more drivers, registration fixes] Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NPeter Korsgaard <jacmet@sunsite.dk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 2月, 2008 3 次提交
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由 Grant Likely 提交于
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 25ae3a07Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 John Rigby 提交于
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: NJohn Rigby <jrigby@freescale.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 John Rigby 提交于
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: NJohn Rigby <jrigby@freescale.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 27 1月, 2008 1 次提交
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由 Grant Likely 提交于
Update MPC5200 drivers to also look for compatible properties in the form "fsl,mpc5200-*" to better conform to open firmware generic names recommended practice as published here: http://www.openfirmware.org/1275/practice/gnames/gnamv14a.html This patch should *not* break compatibility with older device trees which do not use the 'fsl,' prefix. The drivers will still bind against the older names also. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 22 1月, 2008 2 次提交
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由 John Rigby 提交于
In preparation of adding MPC5121 support cleanup some things that checkpatch.pl complains about also some minor fixes suggested by Stephen Rothwell. Signed-off-by: NJohn Rigby <jrigby@freescale.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 John Rigby 提交于
This is in preparation for the addition of MPC512x PSC support. The main difference in the 512x is in the fifo registers. Signed-off-by: NJohn Rigby <jrigby@freescale.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 17 1月, 2008 1 次提交
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由 Grant Likely 提交于
Similar to of_find_compatible_node(), of_find_matching_node() and for_each_matching_node() allow you to iterate over the device tree looking for specific nodes, except that they take of_device_id tables instead of strings. This also moves of_match_node() from driver/of/device.c to driver/of/base.c to colocate it with the of_find_matching_node which depends on it. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 14 10月, 2007 1 次提交
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由 Grant Likely 提交于
Trivial compile warning fix Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 14 9月, 2007 1 次提交
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由 John Rigby 提交于
Use idx as index into mpc52xx_uart_nodes instead of i Signed-off-by: NJohn Rigby <jrigby@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 07 5月, 2007 1 次提交
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由 Grant Likely 提交于
If the serial port gets shut down, then console output stalls. 9 out of 10 kernel hackers agree, this is a bad thing. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NSylvain Munaut <tnt@246tNt.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 02 5月, 2007 1 次提交
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由 Stephen Rothwell 提交于
These are all the remaining instances of get_property. Simple rename of get_property to of_get_property. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 26 4月, 2007 1 次提交
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由 Paul Mackerras 提交于
This reverts commit d05c7a80, which included changes which should go via other subsystem maintainers.
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- 13 4月, 2007 1 次提交
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由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 17 2月, 2007 1 次提交
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由 Sylvain Munaut 提交于
Signed-off-by: NSylvain Munaut <tnt@246tNt.com> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 13 2月, 2007 1 次提交
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由 Grant Likely 提交于
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 1月, 2007 1 次提交
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由 Grant Likely 提交于
The mpc52xx_uart_of_enumerate() function was added when adding 52xx support to arch/powerpc, but it must not be called for arch/ppc. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 12月, 2006 1 次提交
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由 Alan Cox 提交于
This is the grungy swap all the occurrences in the right places patch that goes with the updates. At this point we have the same functionality as before (except that sgttyb() returns speeds not zero) and are ready to begin turning new stuff on providing nobody reports lots of bugs If you are a tty driver author converting an out of tree driver the only impact should be termios->ktermios name changes for the speed/property setting functions from your upper layers. If you are implementing your own TCGETS function before then your driver was broken already and its about to get a whole lot more painful for you so please fix it 8) Also fill in c_ispeed/ospeed on init for most devices, although the current code will do this for you anyway but I'd like eventually to lose that extra paranoia [akpm@osdl.org: bluetooth fix] [mp3@de.ibm.com: sclp fix] [mp3@de.ibm.com: warning fix for tty3270] [hugh@veritas.com: fix tty_ioctl powerpc build] [jdike@addtoit.com: uml: fix ->set_termios declaration] Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NMartin Peschke <mp3@de.ibm.com> Acked-by: NPeter Oberparleiter <oberpar@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NHugh Dickins <hugh@veritas.com> Signed-off-by: NJeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 05 12月, 2006 2 次提交
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由 Grant Likely 提交于
Needed to support mpc52xx boards in arch/powerpc. This patch retains the platform_bus support when compiling for arch/ppc, but uses the of_platform bindings for arch/powerpc. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NSylvain Munaut <tnt@246tNt.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Grant Likely 提交于
Single typo fix and whitespace changes. In preparation for heavy changes to this driver when support for arch/powerpc is added. Since the driver will be changing significantly anyway, then may as well take the opportunity to clean it up first. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NSylvain Munaut <tnt@246tNt.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 07 10月, 2006 1 次提交
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由 Jeff Garzik 提交于
- Eliminate casts to/from void* - Eliminate checks for conditions that never occur. These typically fall into two classes: 1) Checking for 'dev_id == NULL', then it is never called with NULL as an argument. 2) Checking for invalid irq number, when the only caller (the system) guarantees the irq handler is called with the proper 'irq' number argument. Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 05 10月, 2006 1 次提交
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由 David Howells 提交于
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: NDavid Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
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- 01 10月, 2006 1 次提交
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由 Amol Lad 提交于
ioremap must be balanced by an iounmap and failing to do so can result in a memory leak. Signed-off-by: NAmol Lad <amol@verismonetworks.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 03 7月, 2006 2 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Russell King 提交于
Some UARTs have more than 255 bytes of FIFO, which can't be represented by an unsigned char. Change the kernel's internal structure to be an unsigned int, but still export an unsigned char via the TIOCGSERIAL ioctl. If the TIOCSSERIAL ioctl provides a fifo size of 0, assume this means "don't change" otherwise we'll corrupt the larger fifo sizes. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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