- 14 8月, 2011 2 次提交
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由 Mark Brown 提交于
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
We're going to be using these in quite a few places so factor out the readable/writable/volatile/precious checks. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 12 8月, 2011 1 次提交
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由 Stephen Warren 提交于
CONFIG_REGMAP_I2C/SPI are set to m when selected by a tristate config option that's set to m. The regmap modules don't specify a license, so fail to link to regmap_init at load time, since that is EXPORT_SYMBOL_GPL. Fix this by specifying a license for the regmap modules. Signed-off-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 09 8月, 2011 2 次提交
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由 Mark Brown 提交于
We no longer enumerate the bus types, we rely on the driver telling us this on init. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
x86_64 size_t is not an int but the printf format specifier for size_t should be an int. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
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- 08 8月, 2011 7 次提交
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由 Mark Brown 提交于
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
Copy over the read parts of the ASoC debugfs implementation into regmap, allowing users to see what the register values the device has are at runtime. The implementation, especially the support for seeking, is mostly due to Dimitris Papastamos' work in ASoC. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
Allowing the implementation to be multi-file. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
This is mainly intended to be used by devices which can dynamically block register writes at runtime, for other devices there is usually limited value. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
Trace single register reads and writes, plus start/stop tracepoints for the actual I/O to see where we're spending time. This makes it easy to have always on logging without overwhelming the logs and also lets us take advantage of all the context and time information that the trace subsystem collects for us. We don't currently trace register values for bulk operations as this would add complexity and overhead parsing the cooked data that's being worked with. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
When doing a single register write we use work_buf for both the register and the value with the buffer formatted for sending directly to the device so we can just do a write() directly. This saves allocating a temporary buffer if we can't do gather writes and is likely to be faster than doing a gather write. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Mark Brown 提交于
This is currently unused but we need to know which registers exist and their properties in order to implement diagnostics like register map dumps and the cache features. We use callbacks partly because properties can vary at runtime (eg, through access locks on registers) and partly because big switch statements are a good compromise between readable code and small data size for providing information on big register maps. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 25 7月, 2011 1 次提交
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由 Mark Brown 提交于
We should be reading the number of bytes we were asked for, not the size of a single register. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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- 23 7月, 2011 3 次提交
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由 Mark Brown 提交于
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NLiam Girdwood <lrg@ti.com> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Mark Brown 提交于
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NLiam Girdwood <lrg@ti.com> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Mark Brown 提交于
There are many places in the tree where we implement register access for devices on non-memory mapped buses, especially I2C and SPI. Since hardware designers seem to have settled on a relatively consistent set of register interfaces this can be effectively factored out into shared code. There are a standard set of formats for marshalling data for exchange with the device, with the actual I/O mechanisms generally being simple byte streams. We create an abstraction for marshaling data into formats which can be sent on the control interfaces, and create a standard method for plugging in actual transport underneath that. This is mostly a refactoring and renaming of the bottom level of the existing code for sharing register I/O which we have in ASoC. A subsequent patch in this series converts ASoC to use this. The main difference in interface is that reads return values by writing to a location provided by a pointer rather than in the return value, ensuring we can use the full range of the type for register data. We also use unsigned types rather than ints for the same reason. As some of the devices can have very large register maps the existing ASoC code also contains infrastructure for managing register caches. This cache work will be moved over in a future stage to allow for separate review, the current patch only deals with the physical I/O. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NLiam Girdwood <lrg@ti.com> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NGrant Likely <grant.likely@secretlab.ca>
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