user/sven/linux.git/drivers/spi, branch v3.4.48

spi/mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts

2013-04-12T16:38:43Z

commit 1ad849aee5f53353ed88d9cd3d68a51b03a7d44f upstream. Some SPI slave devices require asserted chip select signal across multiple transfer segments of an SPI message. Currently the driver always de-asserts the internal SS signal for every single transfer segment of the message and ignores the 'cs_change' flag of the transfer description. Disable the internal chip select (SS) only if this is needed and indicated by the 'cs_change' flag. Without this change, each partial transfer of a surrounding multi-part SPI transaction might erroneously change the SS signal, which might prevent slaves from answering the request that was sent in a previous transfer segment because the transaction could be considered aborted (SS was de-asserted before reading the response). Reported-by: Gerhard Sittig Signed-off-by: Anatolij Gustschin Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

spi/s3c64xx: modified error interrupt handling and init

2013-04-12T16:38:43Z

commit 375981f2e14868be16cafbffd34a4f16a6ee01c6 upstream. The status of the interrupt is available in the status register, so reading the clear pending register and writing back the same value will not actually clear the pending interrupts. This patch modifies the interrupt handler to read the status register and clear the corresponding pending bit in the clear pending register. Modified the hwInit function to clear all the pending interrupts. Signed-off-by: Girish K S Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

spi/pl022: disable port when unused

2012-08-09T15:31:38Z

commit fd316941cfee1fbd12746afea83720fb7823888a upstream. Commit ffbbdd21329f3e15eeca6df2d4bc11c04d9d91c0 "spi: create a message queueing infrastructure" Accidentally deleted the logic to disable the port when unused leading to higher power consumption. Fix this up. Cc: Vinit Shenoy Signed-off-by: Virupax Sadashivpetimath Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman

spi/spi-fsl-spi: reference correct pdata in fsl_spi_cs_control

2012-06-01T07:18:25Z

commit 067aa4815a9bc12a569d8a06afef50ba5773afbf upstream. Commit 178db7d3, "spi: Fix device unregistration when unregistering the bus master", changed spi device initialization of dev.parent pointer to be the master's device pointer instead of his parent. This introduced a bug in spi-fsl-spi, since its usage of spi device pointer was not updated accordingly. This was later fixed by commit 5039a86, "spi/mpc83xx: fix NULL pdata dereference bug", but it missed another spot on fsl_spi_cs_control function where we also need to update usage of spi device pointer. This change address that. Signed-off-by: Herton Ronaldo Krzesinski Acked-by: Joakim Tjernlund Signed-off-by: Grant Likely Signed-off-by: Greg Kroah-Hartman

spi/spi-bfin5xx: Fix flush of last bit after each spi transfer

2012-04-27T18:20:39Z

This patch ensures that the last bit of a transfer gets correctly flushed out of the register. Signed-off-by: Scott Jiang Signed-off-by: Grant Likely

spi/spi-bfin5xx: fix reversed if condition in interrupt mode

2012-04-27T18:19:01Z

This condition is used to determine 8 bits or 16 and 32 bits transfer. Obviously it is reversed. Signed-off-by: Scott Jiang Signed-off-by: Grant Likely

spi/spi_bfin_sport: drop bits_per_word from client data

2012-04-27T18:17:25Z

Since the member was dropped from the common Blackfin header, we need to stop using it in the SPORT driver too. Signed-off-by: Mike Frysinger Signed-off-by: Scott Jiang Signed-off-by: Grant Likely

spi/bfin_spi: drop bits_per_word from client data

2012-04-27T18:16:39Z

No other SPI controller has this field, and SPI clients should be setting this up in their own drivers. So drop it from the Blackfin controller to keep people from using it. Signed-off-by: Mike Frysinger Signed-off-by: Scott Jiang Signed-off-by: Grant Likely

spi/spi-bfin-sport: move word length setup to transfer handler

2012-04-27T18:16:21Z

Each transfer may have its own bits per word. Signed-off-by: Scott Jiang Signed-off-by: Grant Likely

spi/bfin5xx: rename config macro name for bfin5xx spi controller driver

2012-04-27T18:15:45Z

This controller is only for blackfin 5xx soc, so rename it to BFIN5XX Signed-off-by: Scott Jiang Signed-off-by: Grant Likely