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* pata_serverworks: fix PIO setup for the second channelBartlomiej Zolnierkiewicz2010-03-011-1/+2
| | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_efar: fix secondary port supportBartlomiej Zolnierkiewicz2010-03-011-2/+2
| | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_cypress: fix PIO timings underclockingBartlomiej Zolnierkiewicz2010-03-011-4/+6
| | | | | | | | Timing registers should be programmed with the desired number of clocks minus one clock. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_cs5535: use correct values for PIO1 and PIO2 data timingsBartlomiej Zolnierkiewicz2010-03-011-1/+1
| | | | | | | | | There shouldn't be any problems with it as IDE cs5535 host driver has been using those values for years and they match values given in the (publicly available) datasheet. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_cmd64x: remove unused definitionsBartlomiej Zolnierkiewicz2010-03-011-11/+1
| | | | | | | s/ARTIM2/ARTTIM23/ in cmd648_bmdma_stop() while at it Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_cmd64x: cmd648_bmdma_stop() fixBartlomiej Zolnierkiewicz2010-03-011-1/+1
| | | | | | | | Clear the primary channel pending interrupt bit instead of the reserved one. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_cmd64x: fix handling of address setup timingsBartlomiej Zolnierkiewicz2010-03-011-0/+6
| | | | | | | | Account for the requirements of the DMA mode currently used by the pair device. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_cmd64x: fix PIO setupBartlomiej Zolnierkiewicz2010-03-011-1/+4
| | | | | | | | | Fix incorrect handling of recovery clocks value == 16 resulting in overclocked recovery timings & potentially underclocked active timings. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_ali: documentation fixesBartlomiej Zolnierkiewicz2010-03-011-5/+3
| | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: fix CFA handling in ide_timing_compute()Bartlomiej Zolnierkiewicz2010-03-011-6/+11
| | | | | | | | | Use standard cycle timing for CFA PIO5 and PIO6 modes. Based on commit 74638c8 for IDE subsystem. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_via: Correctly setup PIO/DMA for pata slave on vt6421.Bart Hartgers2010-03-011-3/+5
| | | | | | | | | | | | | | | | | | | Before only the timings for master were set. Datasheet can be found here: ftp://ftp.vtbridge.org/Docs/Storage/DS_VT6421A_100_CCPL.PDF Surprisingly, a slave drive works without this patch. According to the datasheet, the controller by default derives the DMA mode from the Set Features command issued to a drive. Not sure about the PIO timings, though. The real problem is that the timings for the master effectively are the ones tuned for the slave. If these support different UDMA-settings, there is trouble, especially when the slave supports a higher UDMA than the master. Anyhow, using the same mechanism for both master and slave seems like a good idea. Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: make functions/variables staticRobert Hancock2010-03-012-5/+5
| | | | | | | | Make some variables in ahci and a function in pata_pcmcia static, as found using sparse. Signed-off-by: Robert Hancock <hancockrwd@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: implement spurious irq handling for SFF and apply it to piixTejun Heo2010-03-013-8/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Traditional IDE interface sucks in that it doesn't have a reliable IRQ pending bit, so if the controller raises IRQ while the driver is expecting it not to, the IRQ won't be cleared and eventually the IRQ line will be killed by interrupt subsystem. Some controllers have non-standard mechanism to indicate IRQ pending so that this condition can be detected and worked around. This patch adds an optional operation ->sff_irq_check() which will be called for each port from the ata_sff_interrupt() if an unexpected interrupt is received. If the operation returns %true, ->sff_check_status() and ->sff_irq_clear() will be cleared for the port. Note that this doesn't mark the interrupt as handled so it won't prevent IRQ subsystem from killing the IRQ if this mechanism fails to clear the spurious IRQ. This patch also implements ->sff_irq_check() for ata_piix. Note that this adds slight overhead to shared IRQ operation as IRQs which are destined for other controllers will trigger extra register accesses to check whether IDE interrupt is pending but this solves rare screaming IRQ cases and for some curious reason also helps weird BIOS related glitch on Samsung n130 as reported in bko#14314. http://bugzilla.kernel.org/show_bug.cgi?id=14314 * piix_base_ops dropped as suggested by Sergei. * Spurious IRQ detection doesn't kick in anymore if polling qc is in progress. This provides less protection but some controllers have possible data corruption issues if the wrong register is accessed while a command is in progress. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Johannes Stezenbach <js@sig21.net> Reported-by: Hans Werner <hwerner4@gmx.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: cleanup ata_sff_interrupt()Tejun Heo2010-03-011-10/+7
| | | | | | | | | | | | host->ports[i] is never NULL if i < host->n_ports and non-NULL return from ata_qc_from_tag() guarantees that the returned qc is active. Drop unnecessary tests. Superflous () dropped as suggested by Sergei. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ata_piix: IDE Mode SATA patch for Intel Cougar Point DeviceIDsSeth Heasley2010-03-011-0/+8
| | | | | Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ahci: AHCI and RAID mode SATA patch for Intel Cougar Point DeviceIDsSeth Heasley2010-03-011-0/+6
| | | | | Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ahci: Implement SATA AHCI FIS-based switching supportShane Huang2010-03-011-18/+203
| | | | | | | | Tested on AMD internal reference board. Signed-off-by: Shane Huang <shane.huang@amd.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_hpt366: remove irrelevant TODOSergei Shtylyov2010-03-011-3/+1
| | | | | | | HPT36x chips just don't have DPLL. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_hpt{37x|3x2n}: improve timing register documentationSergei Shtylyov2010-03-012-32/+30
| | | | | | | | | Describe UDMA timing bits 18-20 and 21 separately; add a note to bit 31 about it being meaningful for PIO only. Reformat the whole comment, while at it... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_hpt366: remove redundant codeSergei Shtylyov2010-03-011-13/+4
| | | | | | | | | | | | There's no need to clear the fast interrupt bit in hpt366_set_mode() since we're doing it in hpt366_init_chipset() already. While at it, rename 'addr1' local variable to 'addr' and exclude 'ap->port_no' from its calculation as HPT36x are single-channel-per-function chips. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_hpt{37x|3x2n}: unify mode programmingSergei Shtylyov2010-03-012-116/+90
| | | | | | | | | | | | | As these drivers' set_piomode() and set_dmamode() methods are almost identical, factor out the common hpt{37x|3x2n}_set_mode() function to be called by both of them, the same as in 'pata_hpt366' driver. This results in ~5% decrease in the 'pata_hpt37x' driver binary size and in ~4% decrease in the 'pata_hpt3x2n' driver binary size (as measured on x86-32). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_hpt3x2n: always stretch UltraDMA timingSergei Shtylyov2010-03-011-10/+10
| | | | | | | | | | The UltraDMA Tss timing must be stretched with ATA clock of 66 MHz, but the driver only does this when PCI clock is 66 MHz, whereas it always programs DPLL clock (which is used as the ATA clock) to 66 MHz. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: <stable@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_hpt37x: use ATA_DMA_* constantsSergei Shtylyov2010-03-011-9/+10
| | | | | | | Use ATA_DMA_* constants instead of the bare numbers for the BMIDE registers. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-03-011-1/+2
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio: fix out of range array access
| * virtio: fix out of range array accessMichael S. Tsirkin2010-02-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have observed the following error on virtio-net module unload: ------------[ cut here ]------------ WARNING: at kernel/irq/manage.c:858 __free_irq+0xa0/0x14c() Hardware name: Bochs Trying to free already-free IRQ 0 Modules linked in: virtio_net(-) virtio_blk virtio_pci virtio_ring virtio af_packet e1000 shpchp aacraid uhci_hcd ohci_hcd ehci_hcd [last unloaded: scsi_wait_scan] Pid: 1957, comm: rmmod Not tainted 2.6.33-rc8-vhost #24 Call Trace: [<ffffffff8103e195>] warn_slowpath_common+0x7c/0x94 [<ffffffff8103e204>] warn_slowpath_fmt+0x41/0x43 [<ffffffff810a7a36>] ? __free_pages+0x5a/0x70 [<ffffffff8107cc00>] __free_irq+0xa0/0x14c [<ffffffff8107cceb>] free_irq+0x3f/0x65 [<ffffffffa0081424>] vp_del_vqs+0x81/0xb1 [virtio_pci] [<ffffffffa0091d29>] virtnet_remove+0xda/0x10b [virtio_net] [<ffffffffa0075200>] virtio_dev_remove+0x22/0x4a [virtio] [<ffffffff812709ee>] __device_release_driver+0x66/0xac [<ffffffff81270ab7>] driver_detach+0x83/0xa9 [<ffffffff8126fc66>] bus_remove_driver+0x91/0xb4 [<ffffffff81270fcf>] driver_unregister+0x6c/0x74 [<ffffffffa0075418>] unregister_virtio_driver+0xe/0x10 [virtio] [<ffffffffa0091c4d>] fini+0x15/0x17 [virtio_net] [<ffffffff8106997b>] sys_delete_module+0x1c3/0x230 [<ffffffff81007465>] ? old_ich_force_enable_hpet+0x117/0x164 [<ffffffff813bb720>] ? do_page_fault+0x29c/0x2cc [<ffffffff81028e58>] sysenter_dispatch+0x7/0x27 ---[ end trace 15e88e4c576cc62b ]--- The bug is in virtio-pci: we use msix_vector as array index to get irq entry, but some vqs do not have a dedicated vector so this causes an out of bounds access. By chance, we seem to often get 0 value, which results in this error. Fix by verifying that vector is legal before using it as index. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Anthony Liguori <aliguori@us.ibm.com> Acked-by: Shirley Ma <xma@us.ibm.com> Acked-by: Amit Shah <amit.shah@redhat.com>
* | Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2010-03-01318-2054/+12430
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (100 commits) ARM: Eliminate decompressor -Dstatic= PIC hack ARM: 5958/1: ARM: U300: fix inverted clk round rate ARM: 5956/1: misplaced parentheses ARM: 5955/1: ep93xx: move timer defines into core.c and document ARM: 5954/1: ep93xx: move gpio interrupt support to gpio.c ARM: 5953/1: ep93xx: fix broken build of clock.c ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH Kconfig ARM: 5949/1: NUC900 add gpio virtual memory map ARM: 5948/1: Enable timer0 to time4 clock support for nuc910 ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk ARM: make_coherent(): fix problems with highpte, part 2 MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself ARM: 5945/1: ep93xx: include correct irq.h in core.c ARM: 5933/1: amba-pl011: support hardware flow control ARM: 5930/1: Add PKMAP area description to memory.txt. ARM: 5929/1: Add checks to detect overlap of memory regions. ARM: 5928/1: Change type of VMALLOC_END to unsigned long. ARM: 5927/1: Make delimiters of DMA area globally visibly. ARM: 5926/1: Add "Virtual kernel memory..." printout. ARM: 5920/1: OMAP4: Enable L2 Cache ... Fix up trivial conflict in arch/arm/mach-mx25/clock.c
| * \ Merge branches 'clks' and 'pnx' into develRussell King2010-02-25146-1156/+1466
| |\ \
| | * | ARM: PNX4008: use msecs_to_jiffies() rather than open-coding itRussell King2010-02-121-2/+2
| | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: i2c-pnx makes no use of asm/uaccess.h nor asm/irq.hRussell King2010-02-121-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | Remove unnecessary includes Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: i2c-pnx: don't split messages across several linesRussell King2010-02-121-37/+44
| | | | | | | | | | | | | | | | | | | | | | | | It makes them harder to grep for. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: Use i2c driver data for passing between internal functionsRussell King2010-02-121-70/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the drivers data now contains the i2c adapter structure, we can pass around the drivers data between internal functions (which is what they want) rather than using the i2c adapter structure and having an additional pointer dereference each time. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: move i2c_adapter structure inside the drivers private dataRussell King2010-02-123-36/+26
| | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: kzalloc i2c drivers internal dataRussell King2010-02-123-30/+28
| | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: Make ioaddr 'void __iomem *' rather than 'u32'Russell King2010-02-122-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | This avoids unnecessary casting. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: remove platform definitions from mach/timex.hRussell King2010-02-124-54/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mach/timex.h is only supposed to contain a definition for CLOCK_TICK_RATE. Remove additional includes, and move private definitions to a private header file. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: get i2c clock rate from clk APIRussell King2010-02-124-24/+10
| | | | | | | | | | | | | | | | | | | | Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: convert i2c-pnx to use clk API enable/disable callsRussell King2010-02-122-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clk_set_rate() is not supposed to be used to turn clocks on and off. That's what clk_enable/clk_disable is for. Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: move i2c clock start/stop into driverRussell King2010-02-123-47/+32
| | | | | | | | | | | | | | | | | | | | Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: move i2c suspend/resume callbacks into driverRussell King2010-02-123-30/+7
| | | | | | | | | | | | | | | | | | | | Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: convert i2c clocks to match by device onlyRussell King2010-02-122-9/+5
| | | | | | | | | | | | | | | | | | | | Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: convert watchdog to use clk API enable/disable callsRussell King2010-02-122-15/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clk_set_rate() is not supposed to be used to turn clocks on and off. That's what clk_enable/clk_disable is for. Acked-by: Wim Van Sebroeck <wim@iguana.be> Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: convert watchdog clocks to match by device onlyRussell King2010-02-122-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Wim Van Sebroeck <wim@iguana.be> Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: provide clock enable/disable methods and initializationRussell King2010-02-122-13/+26
| | | | | | | | | | | | | | | | | | | | Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: simplify clk enable/disable pathsRussell King2010-02-121-32/+23
| | | | | | | | | | | | | | | | | | | | Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: PNX4008: convert to clkdevRussell King2010-02-124-33/+43
| | | | | | | | | | | | | | | | | | | | Acked-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | ARM: Consolidate clks_register() and similarRussell King2010-02-1233-92/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most machine classes want some way to register a block of clk_lookup structures, and most do it by implementing a clks_register() type function which walks an array, or by open-coding a loop. Consolidate all this into clkdev_add_table(). Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | Merge branch 'misc2' into develRussell King2010-02-2572-562/+1092
| |\ \ \
| | * | | ARM: Eliminate decompressor -Dstatic= PIC hackRussell King2010-02-254-104/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We used to build decompressors with -Dstatic= to avoid any local data being generated. The problem is that local data generates GOTOFF relocations, which means we can't relocate the data relative to the text segment. Global data, on the other hand, goes through the GOT, and can be relocated anywhere. Unfortunately, with the new decompressors, this presents a problem since they declare static data within functions, and this leads to stack overflow. Fix this by separating out the decompressor code into a separate file, and removing 'static' from BSS data in misc.c. Also, discard the .data section - this means that should we end up with read/write initialized data, the decompressor will fail to link and the problem will be obvious. Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH ↵Kukjin Kim2010-02-243-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kconfig Add ARM_L1_CACHE_SHIFT_6 to arch/arm/Kconfig to allow CPUs with L1 cache lines which are 64bytes to indicate this without having to alter the arch/arm/mm/Kconfig entry each time. Update the mm Kconfig so that ARM_L1_CACHE_SHIFT default value uses this and change OMAP3 and S5PC1XX to select ARM_L1_CACHE_SHIFT_6. Acked-by: Ben Dooks <ben-linux@fluff.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | ARM: 5933/1: amba-pl011: support hardware flow controlRabin Vincent2010-02-181-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable/disable automatic hardware flow control as requested by the termios. The controller does not allow us to control the RTS line when auto-RTS is enabled, so we enable auto-RTS only if the kernel has not disabled RTS. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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