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2010-02-20MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itselfRussell King
On VIVT ARM, when we have multiple shared mappings of the same file in the same MM, we need to ensure that we have coherency across all copies. We do this via make_coherent() by making the pages uncacheable. This used to work fine, until we allowed highmem with highpte - we now have a page table which is mapped as required, and is not available for modification via update_mmu_cache(). Ralf Beache suggested getting rid of the PTE value passed to update_mmu_cache(): On MIPS update_mmu_cache() calls __update_tlb() which walks pagetables to construct a pointer to the pte again. Passing a pte_t * is much more elegant. Maybe we might even replace the pte argument with the pte_t? Ben Herrenschmidt would also like the pte pointer for PowerPC: Passing the ptep in there is exactly what I want. I want that -instead- of the PTE value, because I have issue on some ppc cases, for I$/D$ coherency, where set_pte_at() may decide to mask out the _PAGE_EXEC. So, pass in the mapped page table pointer into update_mmu_cache(), and remove the PTE value, updating all implementations and call sites to suit. Includes a fix from Stephen Rothwell: sparc: fix fallout from update_mmu_cache API change Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-20ARM: make_coherent: avoid recalculating the pfn for the modified pageRussell King
We already know the pfn for the page to be modified in make_coherent, so let's stop recalculating it unnecessarily. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-20ARM: make_coherent: fix problems with highpte, part 1Russell King
update_mmu_cache() is called with a page table already mapped. We call make_coherent(), which then calls adjust_pte() which wants to map other page tables. This causes kmap_atomic() to BUG() because the slot its trying to use is already taken. Since do_adjust_pte() modifies the page tables, we are also missing any form of locking, so we're risking corrupting the page tables. Fix this by using pte_offset_map_nested(), and taking the pte page table lock around do_adjust_pte(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-20ARM: make_coherent: convert adjust_pte() to use p*d_none_or_clear_bad()Russell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-20ARM: make_coherent: split adjust_pte() in twoRussell King
adjust_pte() walks the page tables, and do_adjust_pte() does the page table manipulation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-15Merge branch 'for-linus/samsung' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'for-linus/samsung' of git://git.fluff.org/bjdooks/linux: ARM: MINI2440: Fixup __initdata usage ARM: MINI2440: Fix crash on boot due to improper __initdata qualifier ARM: SMDK6410: Specify no GPIO for B_PWR_5V regulator ARM: S3C: NAND: Check the existence of nr_map before copying
2010-01-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: sentelic - fix left/right horizontal scroll mapping Input: pmouse - move Sentelic probe down the list Input: add compat support for sysfs and /proc capabilities output Input: i8042 - add Dritek quirk for Acer Aspire 5610. Input: xbox - do not use GFP_KERNEL under spinlock Input: psmouse - fix Synaptics detection when protocol is disabled Input: bcm5974 - report ABS_MT events Input: davinci_keyscan - add device_enable method to platform data Input: evdev - be less aggressive about sending SIGIO notifies Input: atkbd - fix canceling event_work in disconnect Input: serio - fix potential deadlock when unbinding drivers Input: gf2k - fix &&/|| confusion in gf2k_connect()
2010-01-15ARM: MINI2440: Fixup __initdata usageBen Dooks
Remove some of the __initdata tags which are currently inappropriate for platform_device and some of the platform data. These can be returned once support for copying platform devices and data is added. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15ARM: MINI2440: Fix crash on boot due to improper __initdata qualifierUri Yosef
This patch fix mini2440 crash on boot due to improper __initdata qualifier on mini2440_led1_pdata. Signed-off-by: Uri Yosef <uri.yosef@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15ARM: SMDK6410: Specify no GPIO for B_PWR_5V regulatorMark Brown
Since the fixed voltage regulator grew support for GPIO based enables and GPIO 0 is valid on some systems we need to specify that there is no valid GPIO enable control. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-14ARM: S3C: NAND: Check the existence of nr_map before copyingRamax Lo
Since the structure field nr_map is optional, we need to check whether the chip number map is provided to avoid unexpected NULL pointer exception. Signed-off-by: Ramax Lo <ramaxlo@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-12Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: Ensure ARMv6/7 mm files are built using appropriate assembler options ARM: Fix wrong dmb ARM: 5874/1: serial21285: fix disable_irq-from-interrupt-handler deadlock ARM: 5873/1: ARM: Fix the reset logic for ARM RealView boards ARM: 5872/1: ARM: include needed linux/cpu.h in asm/cpu.h ARM: 5871/1: arch/arm: Fix build failure for lpd7a404_defconfig caused by missing includes ARM: 5870/1: arch/arm: Fix build failure for defconfigs without CONFIG_ISA_DMA_API set ARM: 5868/1: ARM: fix "BUG: using smp_processor_id() in preemptible code" ARM: 5867/1: Update U300 defconfig ARM: 5866/1: arm ptrace: use unsigned types for kernel pt_regs [ARM] pxa: fix strange characters in zaurus gpio .desc ARM: add missing recvmmsg syscall number [ARM] pxa: fix compiler warnings of unused variable 'id' in cpu_is_pxa9*() [ARM] pxa: update pwm_backlight->notify() to include missed 'struct device *' [ARM] pxa: enable L2 if present in XSC3 [ARM] pxa: do not enable L2 after MMU is enabled
2010-01-12ARM: Ensure ARMv6/7 mm files are built using appropriate assembler optionsRussell King
A kernel with both ARMv6 and ARMv7 selected results in build errors. Fix this by specifying the proper architectures for these assembly files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-12ARM: Fix wrong dmbRussell King
The __kuser_cmpxchg code uses an ARMv6 dmb instruction, rather than one based upon the architecture being built for. Switch to using the macro provided for this purpose, which also eliminates the need for an ifdef. Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-11Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (26 commits) OMAP2 clock: dynamically allocate CPUFreq frequency table OMAP clock/CPUFreq: add clk_exit_cpufreq_table() OMAP2xxx OPP: clean up comments in OPP data OMAP2xxx clock: clk2xxx.c doesn't compile if CPUFREQ is enabled OMAP1 clock: remove __initdata from struct clk_functions to prevent crash OMAP1 clock: Add missing clocks for OMAP 7xx OMAP clock: remove incorrect EXPORT_SYMBOL()s OMAP3 clock: Add capability to change rate of dpll4_m5_ck OMAP3 clock: McBSP 2, 3, 4 functional clock parent is PER_96M_FCLK, not CORE_96M_FCLK OMAP3: clock: add clockdomains for UART1 & 2 OMAP2420 IO mapping: move IVA mapping virtual address out of vmalloc space OMAP2xxx IO mapping: mark DSP mappings as being 2420-only ARM: OMAP3: PM: Fix the Invalid CM_CLKSTCTRL reg access. OMAP2: remove duplicated #include omap3: EVM: Choose OMAP_PACKAGE_CBB omap3: Fix booting if package is uninitialized omap3: add missing parentheses omap3: add missing parentheses omap2/3: ZOOM: Correcting key mapping for few keys omap2/3: make serial_in_override() address the right uart port ...
2010-01-11arm: add support for LZO-compressed kernelsAlbin Tonnerre
- changes to ach/arch/boot/Makefile to make it easier to add new compression types - new piggy.lzo.S necessary for lzo compression - changes in arch/arm/boot/compressed/misc.c to allow the use of lzo or gzip, depending on the config - Kconfig support Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Tested-by: Wu Zhangjin <wuzhangjin@gmail.com> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Tested-by: Russell King <rmk@arm.linux.org.uk> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-11mm: make totalhigh_pages unsigned longAndreas Fenkart
Makes it consistent with the extern declaration, used when CONFIG_HIGHMEM is set Removes redundant casts in printout messages Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-11ARM: 5873/1: ARM: Fix the reset logic for ARM RealView boardsColin Tuckley
Extend the patch from Philby John to the other "RealView" boards. Rename the constants and offsets to reflect their actual functions. Cc: Philby John <pjohn@in.mvista.com> Signed-off-by: Colin Tuckley <colin.tuckley@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-10ARM: 5872/1: ARM: include needed linux/cpu.h in asm/cpu.hSantosh Shilimkar
The file arch/arm/include/asm/cpu.h needs to include 'linux/cpu.h' to meet its dependency. Otherwise when using "struct cpuinfo_arm" and including just 'asm/cpu.h' throws below error - arch/arm/include/asm/cpu.h:16: error: field 'cpu' has incomplete type To fix this otherway, one can also include both linux/cpu.h and asm/cpu.h but it shoudn't be that way. So this patch fixes this by including the linux/cpu.h in asm/cpu.h, so that including alone asm/cpu.h is enough. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-10ARM: 5871/1: arch/arm: Fix build failure for lpd7a404_defconfig caused by ↵Peter Hüwe
missing includes This patch fixes a build failure [1] due to missing includes This should make the arm tree build again with lpd7a404_defconfig References: http://kisskb.ellerman.id.au/kisskb/buildresult/1983329/ Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-10ARM: 5870/1: arch/arm: Fix build failure for defconfigs without ↵Peter Hüwe
CONFIG_ISA_DMA_API set A lot of ARM-defconfigs (those without CONFIG_ISA_DMA_API set) fail to build [1][2][3] due to the changes of the patch [PATCH] PCI: Clean up build for CONFIG_PCI_QUIRKS unset by Rafael J. Wysocki (Sat, 2 Jan 2010 22:57:24 +0100) [4] as the referenced variable 'isa_dma_bridge_buggy' in asm/dma.h is enclosed by the CONFIG_ISA_DMA_API conditional all configs without this setting fail to build. I'm not sure wether moving the condition is the right way to solve the issue, but atleast it fixes the issue :) References: [1] http://kisskb.ellerman.id.au/kisskb/buildresult/1983354/ [2] http://kisskb.ellerman.id.au/kisskb/buildresult/1983333/ [3] http://kisskb.ellerman.id.au/kisskb/buildresult/1983337/ [4] http://lkml.org/lkml/2010/1/2/102 Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-08Merge branch 'for_2.6.33rc_c' of git://git.pwsan.com/linux-2.6 into ↵Tony Lindgren
omap-fixes-for-linus
2010-01-08OMAP2 clock: dynamically allocate CPUFreq frequency tablePaul Walmsley
Dynamically allocate the CPUFreq frequency table on OMAP2xxx chips. This fixes some compilation problems, since the kernel may not know what chip it is running on until boot-time. This also reduces the size of the CPUFreq frequency table. Problem originally reported by Felipe Balbi <felipe.balbi@nokia.com>. Thanks also for comments on the patch from Felipe and Kevin. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Felipe Balbi <felipe.balbi@nokia.com> Cc: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-08OMAP clock/CPUFreq: add clk_exit_cpufreq_table()Paul Walmsley
A subsequent patch adds code on OMAP2xxx to dynamically allocate the CPUFreq frequency table in clk_init_cpufreq_table(), so for it to avoid a leak, it will need a corresponding function to free the memory. This patch adds clk_exit_cpufreq_table() with generic code to call a chip-specific variant inside the clockfw_lock spinlock via struct clk_functions. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08OMAP2xxx OPP: clean up comments in OPP dataPaul Walmsley
Revise some of the comments in the OMAP2xxx OPP data for clarity. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Richard Woodruff <r-woodruff2@ti.com>
2010-01-08OMAP2xxx clock: clk2xxx.c doesn't compile if CPUFREQ is enabledFelipe Balbi
if we enable CPUFREQ we can't build omap2 for two reasons, one of them is fixed by the patch below. It's failing because the __must_be_array() check in ARRAY_SIZE() is failing and printing the following message: arch/arm/mach-omap2/clock2xxx.c:453: error: negative width in bit-field '<anonymous>' Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> [paul@pwsan.com: commit message updated; changed rate variable name] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08OMAP1 clock: remove __initdata from struct clk_functions to prevent crashCory Maccarrone
Commit 52650505fbf3a6ab851c801f54e73e76c55ab8da added an __initdata decoration to the structure containing the clk_enable and clk_disable functions. Once init data was freed, these pointers went to null, and the next enable or disable call caused the kernel to crash. This change removes this decoration. Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> [paul@pwsan.com: patch manually split and commit message edited] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08OMAP1 clock: Add missing clocks for OMAP 7xxCory Maccarrone
This change adds in some missing clocks that were needed as a result of 526505... (OMAP1 clock: convert mach-omap1/clock.h to mach-omap1/clock_data.c). Prior to this, it was just assumed that these clocks existed for all devices, and it was used directly instead of calling it out with a clock_get call or similar. So, not having the CK_7XX meant these clocks weren't being used anymore for omap 7xx devices, which broke things badly. Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> [paul@pwsan.com: commit message edited] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08OMAP clock: remove incorrect EXPORT_SYMBOL()sPaul Walmsley
The only symbols that should be exported are symbols that are to be called from loadable kernel modules, e.g., device drivers. In the context of plat-omap/clock.c, these should only be the Linux clock interface symbols as defined by include/linux/clk.h. Core code doesn't need these symbols to be exported. Also, clean up an old comment while here. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08OMAP3 clock: Add capability to change rate of dpll4_m5_ckTuukka Toivonen
Add necessary definitions to clock framework to allow changing dpll4_m5_ck rate. This is used by the camera code. Signed-off-by: Jouni Högander <jouni.hogander@nokia.com> Signed-off-by: Tuukka Toivonen <tuukka.o.toivonen@nokia.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08OMAP3 clock: McBSP 2, 3, 4 functional clock parent is PER_96M_FCLK, not ↵Paul Walmsley
CORE_96M_FCLK The correct parent of the McBSP 2, 3, and 4 functional clocks is PER_96M_FCLK, not CORE_96M_FCLK. Fix this in the OMAP clock tree. Reported by Nicole Chalhoub <n-chalhoub@ti.com>. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Nicole Chalhoub <n-chalhoub@ti.com>
2010-01-08OMAP3: clock: add clockdomains for UART1 & 2Kevin Hilman
UART1 & 2 were missing clockdomains resulting in broken omap_hwmod init for these devices. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08OMAP2420 IO mapping: move IVA mapping virtual address out of vmalloc spacePaul Walmsley
Commit 10db25fea4c11661070b97832b8cc3d2af495092 causes the following kernel messages during N800 boot (and presumably all other 2420 boards): [ 0.000000] BUG: mapping for 0x58000000 at 0xe0000000 overlaps vmalloc space [ 0.000000] BUG: mapping for 0x59000000 at 0xe1000000 overlaps vmalloc space [ 0.000000] BUG: mapping for 0x5a000000 at 0xe2000000 overlaps vmalloc space Fix by remapping the IVA memory areas somewhere outside vmalloc space. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Tony Lindgren <tony@atomide.com>
2010-01-08OMAP2xxx IO mapping: mark DSP mappings as being 2420-onlyPaul Walmsley
Out of the three major OMAP2 chip types, OMAP2420, OMAP2430, and OMAP3430, we only map the IVA on OMAP2420. The memory mapping is not shared between OMAP2420 and OMAP2430, so it is inappropriate to label those macros as '24XX'; this patch changes them to '2420'. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08ARM: OMAP3: PM: Fix the Invalid CM_CLKSTCTRL reg access.Abhijit Pagare
In OMAP2/3 some of the clock-domains which did not have control facility were being falsely written to and read using the CM_CLKSTCTRL register though it did not exist for them. One check is added to remove this flaw. Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Rajendra Nayak <rnayak@ti.com>
2010-01-08OMAP2: remove duplicated #includeHuang Weiyi
Remove duplicated #include('s) in arch/arm/mach-omap2/clock34xx.c arch/arm/mach-omap2/io.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08Merge branch 'for-linus/samsung' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'for-linus/samsung' of git://git.fluff.org/bjdooks/linux: ARM: S3C64XX: Fix possible clock look in EPLL and MPLL clock chains
2010-01-08omap3: EVM: Choose OMAP_PACKAGE_CBBVaibhav Hiremath
Without this the kernel doesn't boot, it craches in omap_mux_package_fixup(), since the package_subset becomes NULL. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap3: Fix booting if package is uninitializedTony Lindgren
Otherwise bringing up new boards can be harder: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 5 [#1] last sysfs file: Modules linked in: CPU: 0 Not tainted (2.6.33-rc2-00015-g0bc9c93-dirty #37) PC is at omap_mux_init+0xa4/0x3d8 LR is at omap_mux_init+0x3c/0x3d8 ... Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap3: add missing parenthesesRoel Kluin
`!' has a higher precedence than `&' so parentheses are required. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap3: add missing parenthesesRoel Kluin
not(!) has a higher precedence than bit and(&). Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap2/3: ZOOM: Correcting key mapping for few keysVimal Singh
Keys: 'right arrow', 'up arrow' and 'select' were mapped wrongly. This patch corrects them. This patch also adds one missing key present in the board, currently I added it as 'unknown' key, as I am not able to find proper description for this key. One key entry (r: 7, c: 5) is present in the keymap, which is really not present in the board, removing it. Signed-off-by: Vimal Singh <vimalsingh@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap2/3: make serial_in_override() address the right uart portAlexander Shishkin
Commit f62349ee9788b1d94c55eb6c291d74a1f69bdd9e makes it possible to have some other than first uart port as ttyS0, which breaks the workaround serial_in_override() function which will try to address the first uart port (for ttyS0) and not the one that was initialized. Signed-off-by: Alexander Shishkin <virtuoso@slind.org> CC: Mika Westerberg <ext-mika.1.westerberg@nokia.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap1: Fix compile for omap1_bl.cTony Lindgren
Commit 9905a43b made struct backlight_ops const. Omap was setting check_fb dynamically, which caused the following compile error: drivers/video/backlight/omap1_bl.c: In function 'omapbl_probe': drivers/video/backlight/omap1_bl.c:142: error: assignment of read-only variable 'omapbl_ops' Turns out pdata->check_fb is not being used, so just remove it to fix the compile. Cc: Emese Revfy <re.emese@gmail.com> Cc: Richard Purdie <rpurdie@linux.intel.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap1: Add 7xx clocks and pin muxes for SPICory Maccarrone
Commit 35c9049b27040d09461bc90928ad770be7ddf661 added drivers/spi/omap_spi_100k.c. This patch add the related clocks and pin muxing entries to make the driver work on omap7xx platforms. Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap: Remove uninitialized warning for gpio.cTony Lindgren
Flags is not used on 15xx. Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap: &&/|| confusion in iommu_put()Roel Kluin
obj can't be both NULL and be an error pointer. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap: gpio: Simultaneously requested rising and falling edgeCory Maccarrone
Some chips, namely any OMAP1 chips using METHOD_MPUIO, OMAP15xx and OMAP7xx, cannot be setup to respond to on-chip GPIO interrupts in both rising and falling edge directions -- they can only respond to one direction or the other, depending on how the ICR is configured. Additionally, current code forces rising edge detection if both flags are specified: if (trigger & IRQ_TYPE_EDGE_RISING) l |= 1 << gpio; else if (trigger & IRQ_TYPE_EDGE_FALLING) l &= ~(1 << gpio); else goto bad; This change implements a toggle function that will modify the ICR to flip the direction of interrupt for IRQs that are requested with both rising and falling flags. The toggle function is not called for chips and GPIOs it does not apply to through the use of a flip_mask that's added on a per-bank basis. The mask is only set for those GPIOs where a toggle is necessary. Edge detection starts out the same as above with FALLING mode first. The toggle happens on EACH interrupt; without it, we have the following sequence of actions on GPIO transition: ICR GPIO Result 0x1 0 -> 1 (rising) Interrupt 0x1 1 -> 0 (falling) No interrupt (set ICR to 0x0 manually) 0x0 0 -> 1 (rising) No interrupt 0x0 1 -> 0 (falling) Interrupt That is, with the ICR set to 1 for a gpio, only rising edge interrupts are caught, and with it set to 0, only falling edge interrupts are caught. If we add in the toggle, we get this: ICR GPIO Result 0x1 0 -> 1 (rising) Interrupt (ICR set to 0x0) 0x0 1 -> 0 (falling) Interrupt (ICR set to 0x1) 0x1 0 -> 1 ... so, both rising and falling are caught, per the request for both (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING). Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08omap: McBSP: Fix possible port lockoutJanusz Krzysztofik
In its current form, the omap_mcbsp_request() function can return after irq_request() failure without any cleanups, effectively locking out the port forever with clocks left running. Fix it. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
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