- 29 Mar, 2013 13 commits
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Samuel Ortiz authored
MEI drivers should be able to carry their private data around. Signed-off-by:
Samuel Ortiz <sameo@linux.intel.com> Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Samuel Ortiz authored
Define a truly synchronous API for the bus Tx path by putting all pending request to the write list and wait for the interrupt tx handler to wake us up. The ___mei_cl_send() out path is also slightly reworked to make it look more like main.c:mei_write(). Signed-off-by:
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Samuel Ortiz authored
Register the MEI bus type against the kernel core bus APIs and call the bus Rx handler from interrupt.c Signed-off-by:
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Samuel Ortiz authored
We keep track of all MEI devices on the bus through a specific linked list. We also have a mei_device instance in the mei_cl structure. Signed-off-by:
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Samuel Ortiz authored
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Samuel Ortiz authored
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Samuel Ortiz authored
mei client bus will present some of the mei clients as devices for other standard subsystems Implement the probe, remove, match, device addtion routines, along with the sysfs and uevent ones. mei_cl_device_id is also added to mod_devicetable.h A mei-cleint-bus.txt document describing the rationale and the API usage is also added while ABI/testing/sysfs-bus-mei describeis the modalias ABI. Signed-off-by:
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Tomas Winkler authored
mei layer provides host bus message layer, client management, and os interface mei-me - provides access to ME hardware through the pci bus Signed-off-by:
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Tomas Winkler authored
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Tomas Winkler authored
The hw initialization is now done as part of hw specific code this makes the name mei_hw_init little misleading. We rename it to mei_start in spirit of already existing functions mei_stop and mei_reset. Signed-off-by:
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Tomas Winkler authored
mei_timer and mei_host_client_init belongs to mei framework and are not ME hw specific. AMTHIF and WD are available only for ME but are above the hardware layer so move the initialization back from mei_me_dev_init to mei_device_init. Signed-off-by:
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Tomas Winkler authored
we need to unregister watchdog device both in suspend and remove as the registration is recreated on reset Signed-off-by:
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Tomas Winkler authored
ECOVERING_FROM_RESET device state is never set we can remove it Signed-off-by:
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- 26 Mar, 2013 6 commits
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Greg Kroah-Hartman authored
This picks up the MEI fixes that we need in this branch now. Signed-off-by: -
David Brown authored
The pm8921 driver has been broken for a while now, but was prevented from compiling because the SSBI bus driver was missing. Now that SSBI is present, pm8921 causes compile fails. Until the pm8921 driver is fixed, mark it as BROKEN to prevent compiles from failing. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
David Brown <davidb@codeaurora.org> Signed-off-by:
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Greg Kroah-Hartman authored
Merge tag 'arizona-extcon-asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc into char-misc-next Mark writes: ASoC/extcon: arizona: Fix interaction between HPDET and headphone outputs This patch series covers both ASoC and extcon subsystems and fixes an interaction between the HPDET function and the headphone outputs - we really shouldn't run HPDET while the headphone is active. The first patch is a refactoring to make the extcon side easier.
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Mark Brown authored
Running HPDET while the headphone outputs are enabled can disrupt the operation of HPDET. In order to avoid this HPDET needs to disable the headphone outputs and ASoC needs to not enable them while HPDET is running. For extcon instead of checking if the headphone output is enabled when doing magic application unconditionally disable the output and restore the state which ASoC wants set when undoing the magic. Signed-off-by:Mark Brown <broonie@opensource.wolfsonmicro.com>
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Mark Brown authored
Running HPDET while the headphone outputs are enabled can disrupt the operation of HPDET. In order to avoid this HPDET needs to disable the headphone outputs and ASoC needs to not enable them while HPDET is running. Do the ASoC side of this by storing the enable state in the core driver structure and only writing to the device if a flag indicating that the accessory detection side is in a state where it can have the headphone output stage enabled. Signed-off-by: -
Mark Brown authored
We have a very similar sequence doing magic writes in several places (one of which missed an update to interlock with the CODEC driver) so factor it out into a function. Signed-off-by:
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- 25 Mar, 2013 21 commits
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Wei Yongjun authored
local functions that could be static. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
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Jiri Kosina authored
This module accepts a single 'irq' parameter, which it should register for. Its sole purpose is to help with debugging of IRQ sharing problems, by force-enabling IRQ that would otherwise be disabled. Suggested-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Tomas Winkler authored
similar to read/write add also irq completion handler that is called for the irq thread rename missnamed mei_irq_complete_handler to mei_cl_complete_handler as it operates on a single client Signed-off-by:
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Lokesh Vutla authored
of_get_property returns value in Big Endian format. Before using this value it should be converted to little endian using be32_to_cpup(). Custom configs of emif are read from dt using of_get_property, but these are not converted to litte endian format. Correcting the same here. Signed-off-by:
Lokesh Vutla <lokeshvutla@ti.com> Acked-by:
Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by:
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Grygorii Strashko authored
ERRATA DESCRIPTION : The EMIF supports power-down state for low power. The EMIF automatically puts the SDRAM into power-down after the memory is not accessed for a defined number of cycles and the EMIF_PWR_MGMT_CTRL[10:8] REG_LP_MODE bit field is set to 0x4. As the EMIF supports automatic output impedance calibration, a ZQ calibration long command is issued every time it exits active power-down and precharge power-down modes. The EMIF waits and blocks any other command during this calibration. The EMIF does not allow selective disabling of ZQ calibration upon exit of power-down mode. Due to very short periods of power-down cycles, ZQ calibration overhead creates bandwidth issues and increases overall system power consumption. On the other hand, issuing ZQ calibration long commands when exiting self-refresh is still required. WORKAROUND : Because there is no power consumption benefit of the power-down due to the calibration and there is a performance risk, the guideline is to not allow power-down state and, therefore, to not have set the EMIF_PWR_MGMT_CTRL[10:8] REG_LP_MODE bit field to 0x4. This is applicable only for EMIF4D IP used in OMAP4 Soc's. Signed-off-by:
Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by:
Vitaly Chernooky <vitaly.chernooky@ti.com> Signed-off-by:
Oleksandr Dmytryshyn <oleksandr.dmytryshyn@ti.com> Signed-off-by:
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Oleksandr Dmytryshyn authored
The issue was that only the first timings table was added to the emif platform data at the emif driver registration. All other timings tables was filled with zeros. Now all emif timings table are added to the platform data. Signed-off-by:
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Nishanth Menon authored
Some machine or kernel variants might have missed implementation of power off handlers. We DONOT want to let the system be in "out of spec" state in this condition. So, WARN and attempt a machine restart in the hopes of clearing the out-of-spec temperature condition. NOTE: This is not the safest option, but safer than leaving the system in unstable conditions. Signed-off-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
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Nishanth Menon authored
As per JESD209-2E specification for LPDDR2, http://www.jedec.org/standards-documents/results/jesd209-2E Table 73, LPDDR2 memories come in two flavors - Standard and Extended. The Standard types can operate from -25C to +85C However, beyond that and upto +105C can only be supported by Extended types. Unfortunately, it seems there is no info in MR0(device info) or MR[1,2](device feature) for run time detection of this capability as far as seen on the spec. Hence, we provide a custom_config flag to be populated by platforms which have these "extended" type memories. For the "Standard" memories, we need to consider MR4 notifications of temperature triggers >85C as equivalent to thermal shutdown events (equivalent to Spec specified thermal shutdown events for "extended" parts). Reported-by:Richard Woodruff <r-woodruff2@ti.com> Signed-off-by:
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Nishanth Menon authored
In case the custom timings provide values which overflow the maximum possible field value, warn and use maximum permissible value. Signed-off-by:
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Ambresh K authored
Program the power management shadow register on freq update Else the concept of threshold frequencies dont really matter as the system always uses the performance mode timing for LP which is programmed in at init time. Signed-off-by:
Ambresh K <ambresh@ti.com> Signed-off-by:
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Lokesh Vutla authored
The driver tries to round up the specified timeout cycles to the next power of 2 value. This should be done defore updating timeout variable. Correcting this here. Reported-by:
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Alexandru Gheorghiu authored
Used PTR_RET function instead of IS_ERR and PTR_ERR. Patch found using coccinelle. Signed-off-by:
Alexandru Gheorghiu <gheorghiuandru@gmail.com> Signed-off-by:
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Silviu-Mihai Popescu authored
This replaces calls to kmalloc followed by memcpy with a single call to kmemdup. This was found via make coccicheck. Signed-off-by:
Silviu-Mihai Popescu <silviupopescu1990@gmail.com> Signed-off-by:
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Fabio Porcedda authored
Use module_platform_driver_probe() macro which makes the code smaller and simpler. Signed-off-by:
Fabio Porcedda <fabio.porcedda@gmail.com> Cc: Matt Porter <mporter@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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David Brown authored
The ssbi device is specific to the Qualcomm MSM SoCs. Signed-off-by:
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David Brown authored
Although the SSBI sub is currently only used on MSM SoCs, it is still a bus in its own right. Remove this msm_ prefix from the driver and it's symbols. Clients can now refer directly to ssbi_write() and ssbi_read(). Signed-off-by:
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David Brown authored
Remove some unhelpful error logs. This also removes the necessity of having a pointer back to the struct device within the ssbi-specific structure Signed-off-by:
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David Brown authored
With device tree, and deferred probe, it is no longer necessary to make sure that the ssbi bus driver is initialized very early. Restore to a regular module_init(). Signed-off-by:
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David Brown authored
The ssbi driver uses a busywait loop to read its status register. Add a comment explaining the timing of the device itself so that future developers can better understand this delay, and possibly diagnose any problems. Signed-off-by:
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David Brown authored
The SSBI bus is exclusive to the Qualcomm MSM targets, and all SoCs using it will be using device tree. Convert this driver to indentify with device tree. This makes the bus probing a good bit simpler, since the attaching of child nodes can be represented directly in the devicetree, rather than having to be inferred by name. Signed-off-by:
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David Brown authored
The ssbi driver's read/write entry points are protected with wrappers in the case when the driver isn't enabled. These wrappers don't make any sense, since a client of the SSBI bus won't work without it. Make these just regular functions, so that the SSBI driver can be built as a module. Signed-off-by:
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