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path: root/drivers/i2c/busses/i2c-ismt.c
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* i2c: ismt: Use minimum descriptor sizeFan Du2014-09-291-1/+1
| | | | | | | | | | | | Software is allowed to allocate number of descriptor size from 2 to 256, this i2c controller could process more descriptor, but for i2c core soft ware layer, only one i2c transaction is allowed each time. So here switch to minimum 2 descriptor when initialization. Signed-off-by: Fan Du <fan.du@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: ismt: use correct length when copy bufferFan Du2014-09-201-2/+2
| | | | | | | | | | | In block write mode, when encapsulating dma_buffer, first element is 'command', the rest is data buffer, so only copy actual data buffer starting from block[1] with the size indicating by block[0]. Signed-off-by: Fan Du <fan.du@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org
* i2c: remove DEFINE_PCI_DEVICE_TABLE macroJingoo Han2014-03-131-1/+1
| | | | | | | | Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: delete non-required instances of include <linux/init.h>Paul Gortmaker2014-01-241-1/+0
| | | | | | | | | | | None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. 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 <paul.gortmaker@windriver.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c-ismt: support I2C_SMBUS_I2C_BLOCK_DATA transaction typerobert.valiquette@intel.com2014-01-131-0/+37
| | | | | | | | | This patch adds the support of the I2C_SMBUS_I2C_BLOCK_DATA transaction type for the iSMT SMBus Controller. Signed-off-by: Robert Valiquette <robert.valiquette@intel.com> Acked-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* tree-wide: use reinit_completion instead of INIT_COMPLETIONWolfram Sang2013-11-151-1/+1
| | | | | | | | | | | | Use this new function to make code more comprehensible, since we are reinitialzing the completion, not initializing. [akpm@linux-foundation.org: linux-next resyncs] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13) Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i2c: ismt: initialize DMA bufferJames Ralston2013-09-281-0/+3
| | | | | | | | | This patch adds code to initialize the DMA buffer to compensate for possible hardware data corruption. Signed-off-by: James Ralston <james.d.ralston@intel.com> [wsa: changed to use 'sizeof'] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: ismt: add error return code in probe()Wolfram Sang2013-08-281-0/+1
| | | | | | | Return error code in the error case, and not success. Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: ismt: remove duplicate constWolfram Sang2013-03-241-1/+1
| | | | | | | (SMATCH) drivers/i2c/busses/i2c-ismt.c:186:14: warning: duplicate const Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: iSMT: add Intel Avoton DeviceIDsSeth Heasley2013-03-221-0/+2
| | | | | | | | This patch adds the iSMT SMBus Controller DeviceIDs for the Intel Avoton SOC. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* i2c: fix i2c-ismt.c printk format warningRandy Dunlap2013-02-151-1/+1
| | | | | | | | | | | | Fix printk format warning. dma_addr_t can be 32-bit or 64-bit, so cast it to long long for printing. This also matches the printk format specifier that is already used. drivers/i2c/busses/i2c-ismt.c:532:3: warning: format '%llX' expects argument of type 'long long unsigned int', but argument 4 has type 'dma_addr_t' [-Wformat] Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
* i2c: Adding support for Intel iSMT SMBus 2.0 host controllerNeil Horman2013-02-101-0/+963
The iSMT (Intel SMBus Message Transport) supports multi-master I2C/SMBus, as well as IPMI. It's operation is DMA-based and utilizes descriptors to initiate transactions on the bus. The iSMT hardware can act as both a master and a target, although this driver only supports being a master. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Bill Brown <bill.e.brown@intel.com> Tested-by: Seth Heasley <seth.heasley@intel.com> Reviewed-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
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