- 28 1月, 2008 32 次提交
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由 Ben Dooks 提交于
Add armclk to the supported clocks on the S3C2440 and S3C2442 to better represent the DVS state which controls whether FCLK or HCLK is fed to the ARM core. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Merge together the bits of the S3C2440 and S3C2442 clock code that can be. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Add the reverse of s3c2410_gpio_getirq to convert a IRQ number into a GPIO pin number. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
In the S3C2412 fclk is derived from msysclk, not straight from the MPLL output. Set clk_f.parent appropriately. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The msysclk clock was checking for the wrong PLL for the parent in s3c2412_setparent_msysclk(), trying the UPLL instead of the MPLL output. Also ensure the mpll and fclks are at the same rate at init time. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Fix the channel parameter to s3c2410_dma_ctrl() in s3c2410_dma_enqueue() if the S3C2410_DMAF_AUTOSTART is set on the channel. Spotted by Steven Ryu at Samsung. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The s3c2410_dma_request() function should return the channel allocated instead of zero for success. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The core resume code may have caused glitches in the GPIO when restoring the GPIO state due to the order in which the GPIO registers were being written. Change the restore process take into account the state of the GPIOs on resume and the state the system wants to restore them to. See the code comments in the patch for more details of the process. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Add the call s3c2410_gpio_getpull() to return the current state of the pin's pull-up. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
If an DMA channel was active at suspend, then ensure that it is correctly reconfigured when the system resumes. Note, the previous policy was for each driver to handle their own reconfiguration on resume. The policy has been changed to make the individual driver's job easier. Signed-off-by: NBen Dooks <ben-linux@flfuf.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The current S3C24XX DMA code does not allow for an peripheral that has one channel for RX and another for TX. This patch adds a per-cpu dma operation to select the transmit or receive channel, and adds support to the S3C2412 for the seperate DMA channels for TX and RX. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Add s3c2412_gpio_set_sleepcfg() to allow the setting of the sleep configuration of the GPIO blocks. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Add armclk to the S3C2412 to indicate the current clock connected to the ARM core. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Add checks for clk_set_rate() and ensure that we do not allow set_rate to be called for a clock that does not have it defined. Add default methods for fclk, hclk, pclk and mpll. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Check if the sleep command returns due to a pending interrupt in the standby unit. If this happens, try and ack the IRQ before re-trying the resume. It is currently unclear whether the resume can be backed out of at this stage as this could cause a problem with level based interrupts. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
Ensure that if the RTC IRQ is not selected for wake in the base configuration, then the PWRCFG has the same value set in it. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The IIS device is being registered by the Simtec Audio driver, and thus registering here causes an error due to device tree naming collision. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The IIS device is being registered by the Simtec Audio driver, and thus registering here causes an error due to device tree naming collision. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
S3C2412_GPESLPCON does not exist in the register mappings, so remove it. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The IIS and SDI register hw_addr definitions are incorrect in the DMA map for the S3C2412. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
The S3C2412 GPIO is similar enough to the S3C2410 that it can use it as a base for GPIO functionality. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ben Dooks 提交于
We have a default display set to 4, when we only have three registered displays. Fix this argument (a seperate patch has been generated to ensure that the LCD driver takes notice of this bug) Signed-off-by: NBen Dooks <ben-linux@fluff.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Dmitry Baryshkov 提交于
This adds back the registration of HWUART clock on pxa25x Signed-off-by: NDmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Move the xtime write mode seqlock into timer_tick(), so it only surrounds the call to do_timer(). This avoids a deadlock in update_process_times() ... hrtimer_get_softirq_time() which tries to get a read mode seqlock on xtime, thereby preventing booting. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 eric miao 提交于
The original code incorrectly returns Hz instead of KHz. Signed-off-by: Neric miao <eric.miao@marvell.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 David Brownell 提交于
From: Nicolas Ferre <nicolas.ferre@rfo.atmel.com> On the at92sam9263ek board, tell the input subsystem about the buttons. This patch is taken from Andrew Victor's at91 patchset, then updated to match the latest kernel code and to use labels printed on the board. Also update the at91sam9261ek buttons to cope with input changes. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Manuel Lauss 提交于
Convert the i2c-au1550 bus driver to platform driver, and register a platform device for the Alchemy Db/Pb series of boards. Signed-off-by: NManuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Mike Rapoport 提交于
Add polling I2C transfer implementation for PXA I2C. This is needed for cases where I2C transactions have to occur at times interrups are disabled. Signed-off-by: NMike Rapoport <mike@compulab.co.il> Acked-by: Neric miao <eric.miao@marvell.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 David Brownell 提交于
Move the tps65010 header file from the OMAP arch directory to the more generic <linux/i2c/...> directory, and remove the spurious dependency of this driver on OMAP. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Michael-Luke Jones 提交于
Migrate all ixp4xx devices to the bitbanging I2C bus driver utilizing the arch-neutral GPIO API (linux/i2c-gpio.h). Tested by the nslu2-linux and openwrt projects in public firmware releases. Signed-off-by: NMichael-Luke Jones <mlj28@cam.ac.uk> Acked-by: NRod Whitby <rod@whitby.id.au> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Adrian Bunk 提交于
This patch contains the scheduled removal of legacy I2C RTC drivers with replacement drivers. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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- 26 1月, 2008 8 次提交
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由 Nicolas Pitre 提交于
Signed-off-by: NNicolas Pitre <nico@marvell.com>
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由 Nicolas Pitre 提交于
The kprobes code is already able to cope with reentrant probes, so its handler must be called outside of the region protected by undef_lock. If ever this lock is released when handlers are called then this commit could be reverted. Signed-off-by: NNicolas Pitre <nico@marvell.com>
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由 Nicolas Pitre 提交于
Signed-off-by: NNicolas Pitre <nico@marvell.com>
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由 Nicolas Pitre 提交于
If kprobes installs a breakpoint on a "stmdb sp!, {...}" instruction, and then single-step it by simulation from the exception context, it will corrupt the saved regs on the stack from the previous context. To avoid this, let's add an optional parameter to the svc_entry macro allowing for a hole to be created on the stack before saving the interrupted context, and use it in the undef_svc handler when kprobes is enabled. Signed-off-by: NNicolas Pitre <nico@marvell.com>
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由 Nicolas Pitre 提交于
Signed-off-by: NNicolas Pitre <nico@marvell.com>
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由 Abhishek Sagar 提交于
This is a full implementation of Kprobes including Jprobes and Kretprobes support. This ARM implementation does not follow the usual kprobes double- exception model. The traditional model is where the initial kprobes breakpoint calls kprobe_handler(), which returns from exception to execute the instruction in its original context, then immediately re-enters after a second breakpoint (or single-stepping exception) into post_kprobe_handler(), each time the probe is hit.. The ARM implementation only executes one kprobes exception per hit, so no post_kprobe_handler() phase. All side-effects from the kprobe'd instruction are resolved before returning from the initial exception. As a result, all instructions are _always_ effectively boosted regardless of the type of instruction, and even regardless of whether or not there is a post-handler for the probe. Signed-off-by: NAbhishek Sagar <sagar.abhishek@gmail.com> Signed-off-by: NQuentin Barnes <qbarnes@gmail.com> Signed-off-by: NNicolas Pitre <nico@marvell.com>
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由 Quentin Barnes 提交于
This is the code implementing instruction single-stepping for kprobes on ARM. To get around the limitation of no Next-PC and no hardware single- stepping, all kprobe'd instructions are split into three camps: simulation, emulation, and rejected. "Simulated" instructions are those instructions which behavior is reproduced by straight C code. "Emulated" instructions are ones that are copied, slightly altered and executed directly in the instruction slot to reproduce their behavior. "Rejected" instructions are ones that could be simulated, but work hasn't been put into simulating them. These instructions should be very rare, if not unencountered, in the kernel. If ever needed, code could be added to simulate them. One might wonder why this and the ptrace singlestep facility are not sharing some code. Both approaches are fundamentally different because the ptrace code regains control after the stepped instruction by installing a breakpoint after the instruction itself, and possibly at the location where the instruction might be branching to, instead of simulating or emulating the target instruction. The ptrace approach isn't suitable for kprobes because the breakpoints would have to be moved back, and the icache flushed, everytime the probe is hit to let normal code execution resume, which would have a significant performance impact. It is also racy on SMP since another CPU could, with the right timing, sail through the probe point without being caught. Because ptrace single-stepping always result in a different process to be scheduled, the concern for performance is much less significant. On the other hand, the kprobes approach isn't (currently) suitable for ptrace because it has no provision for proper user space memory protection and translation, and even if that was implemented, the gain wouldn't be worth the added complexity in the ptrace path compared to the current approach. So, until kprobes does support user space, both kprobes and ptrace are best kept independent and separate. Signed-off-by: NQuentin Barnes <qbarnes@gmail.com> Signed-off-by: NAbhishek Sagar <sagar.abhishek@gmail.com> Signed-off-by: NNicolas Pitre <nico@marvell.com>
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由 Andrew Victor 提交于
Add support for the Atmel AT91CAP9A-DK Evaluation Kit board. Signed-off-by: NStelian Pop <stelian@popies.net> Signed-off-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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