10 Feb, 2017
1 commit
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Declare i2c_algorithm structures as const as they are only stored in the
algo field of an i2c_adapter structure. This field is of type const, so
i2c_algorithm structures having this property can be made const too.Signed-off-by: Bhumika Goyal
Acked-by: Uwe Kleine-König for
Acked-by: Patrice Chotard
Acked-by: Jarkko Nikula
Reviewed-by: Jean Delvare
Acked-by: Ludovic Desroches
Signed-off-by: Wolfram Sang
25 Oct, 2016
1 commit
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If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Signed-off-by: Javier Martinez Canillas
Signed-off-by: Wolfram Sang
22 Aug, 2016
1 commit
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The core will do this for us now.
Signed-off-by: Wolfram Sang
Reviewed-by: Grygorii Strashko
Acked-by: Peter Korsgaard
Acked-by: Heiko Stuebner
Acked-by: Neil Horman
Acked-by: Thierry Reding
Acked-by: Ray Jui
Acked-by: Vladimir Zapolskiy
Acked-by: Ludovic Desroches
Acked-by: Krzysztof Kozlowski
Acked-by: Laxman Dewangan
Signed-off-by: Wolfram Sang
16 Dec, 2015
2 commits
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The Sigma Designs variant of this controller has the ability to generate
interrupts. This is controlled using two additional registers, oddly
enough overlapping with the defined but unused HDSTATIM.This patch adds support for using this feature instead of busy-looping
if an IRQ is specified.Signed-off-by: Mans Rullgard
Signed-off-by: Wolfram Sang -
The BYTECNT register holds the transfer size minus one. Setting it to
the correct value removes the need for a dummy read/write at the end of
each transfer. As zero-length transfers are not supported, do not
advertise I2C_FUNC_SMBUS_QUICK.In other words, this patch makes the driver transfer the number of bytes
requested unless this is zero, which is not supported by the hardware
and is thus refused.Signed-off-by: Mans Rullgard
Signed-off-by: Wolfram Sang
15 Dec, 2015
1 commit
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Sigma Designs chips use a variant of this controller with the following
differences:- The BUSY bit in the STATUS register is inverted
- Bit 8 of the CONFIG register must be set
- The controller can generate interruptsThis patch adds support for the first two of these. It also calculates
and sets the correct clock divisor if a clk is provided. The bus
frequency is optionally speficied in the device tree node.Signed-off-by: Mans Rullgard
Signed-off-by: Wolfram Sang
20 Oct, 2014
1 commit
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A platform_driver does not need to set an owner, it will be populated by the
driver core.Signed-off-by: Wolfram Sang
25 Jan, 2014
1 commit
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None of these files are actually using any __init type directives
and hence don't need to include . Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.Signed-off-by: Paul Gortmaker
Acked-by: Jean Delvare
Signed-off-by: Wolfram Sang
27 Feb, 2013
1 commit
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Pull i2c updates from Wolfram Sang:
"Highlights:- new drivers for Intel ismt & Broadcom bcm2835
- a number of drivers got support for more variants and mostly got
cleaned up on the way (sis630, i801, at91, tegra, designware)
- i2c got rid of all *_set_drvdata(..., NULL) on remove/probe failure
- removed the i2c_smbus_process_call from the core since there are no
users
- mxs can now switch between PIO and DMA depending on the message
size and the bus speed can now be arbitraryIn addition, there is the usual bunch of fixes, cleanups, devm_*
conversions, etc"Fixed conflict (and buggy devm_* conversion) in i2c-s3c2410.c
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (39 commits)
i2c: Remove unneeded xxx_set_drvdata(..., NULL) calls
i2c: pxa: remove incorrect __exit annotations
i2c: ocores: Fix pointer to integer cast warning
i2c: tegra: remove warning dump if timeout happen in transfer
i2c: fix i2c-ismt.c printk format warning
i2c: i801: Add Device IDs for Intel Wellsburg PCH
i2c: add bcm2835 driver
i2c: ismt: Add Seth and Myself as maintainers
i2c: sis630: checkpatch cleanup
i2c: sis630: display unsigned hex
i2c: sis630: use hex to constants for SMBus commands
i2c: sis630: fix behavior after collision
i2c: sis630: clear sticky bits
i2c: sis630: Add SIS964 support
i2c: isch: Add module parameter for backbone clock rate if divider is unset
i2c: at91: fix unsed variable warning when building with !CONFIG_OF
i2c: Adding support for Intel iSMT SMBus 2.0 host controller
i2c: sh_mobile: don't send a stop condition by default inside transfers
i2c: sh_mobile: eliminate an open-coded "goto" loop
i2c: sh_mobile: fix timeout error handling
...
22 Feb, 2013
1 commit
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There is simply no reason to be manually setting the private driver
data to NULL in the remove/fail to probe cases. This is just extra
cruft code that can be removed.A few notes:
* Nothing relies on drvdata being set to NULL.
* The __device_release_driver() function eventually calls
dev_set_drvdata(dev, NULL) anyway, so there's no need to do it
twice.
* I verified that there were no cases where xxx_get_drvdata() was
being called in these drivers and checking for / relying on the NULL
return value.This could be cleaned up kernel-wide but for now just take the baby
step and remove from the i2c subsystem.Reported-by: Wolfram Sang
Reported-by: Stephen Warren
Signed-off-by: Doug Anderson
Reviewed-by: Jean Delvare
Acked-by: Peter Korsgaard
Reviewed-by: Mika Westerberg
Reviewed-by: Marek Vasut
Signed-off-by: Wolfram Sang
25 Jan, 2013
1 commit
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Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.Signed-off-by: Thierry Reding
Acked-by: Wolfram Sang
Cc: Ben Dooks
Signed-off-by: Greg Kroah-Hartman
23 Dec, 2012
1 commit
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CONFIG_HOTPLUG is going away as an option. As result the __dev*
markings will be going away.Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst,
and __devexit.Signed-off-by: Bill Pemberton
Acked-by: Peter Korsgaard (for ocores and mux-gpio)
Acked-by: Havard Skinnemoen (for i2c-gpio)
Acked-by: Guan Xuetao (for puf3)
Acked-by: Barry Song (for sirf)
Reviewed-by: Jean Delvare
[wsa: Fixed "foo* bar" flaws while we are here]
Signed-off-by: Wolfram Sang
25 Feb, 2012
1 commit
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Add support for the intergrated I2C controller on Netlogic
XLR/XLS MIPS SoC.The changes are to add a new file i2c/buses/i2c-xlr.c, containing the
i2c bus implementation, and to update i2c/buses/{Kconfig,Makefile} to
add the CONFIG_I2C_XLR option.Signed-off-by: Ganesan Ramalingam
Signed-off-by: Jayachandran C
Signed-off-by: Wolfram Sang
