kernel/git/stable/linux.git/drivers/spi/omap2_mcspi.c, branch master

spi: reorganize drivers

2011-06-06T07:16:30+00:00

Sort the SPI makefile and enforce the naming convention spi_*.c for spi drivers. This change also rolls the contents of atmel_spi.h into the .c file since there is only one user of that particular include file. v2: - Use 'spi-' prefix instead of 'spi_' to match what seems to be be the predominant pattern for subsystem prefixes. - Clean up filenames in Kconfig and header comment blocks Signed-off-by: Grant Likely Acked-by: Wolfram Sang Acked-by: Linus Walleij

spi/omap2: fix uninitialized variable

2011-06-03T20:57:07+00:00

fixes below compilation warning. The variable doesn't actual ever get used uninitialized, but that's no reason to be sloppy. drivers/spi/omap2_mcspi.c: In function 'omap2_mcspi_txrx_dma': drivers/spi/omap2_mcspi.c:301: warning: 'elements' may be used uninitialized in this function Signed-off-by: Govindraj.R [grant.likely: amended description] Signed-off-by: Grant Likely

spi/omap_mcspi: Fix broken last word xfer

2011-03-23T21:04:15+00:00

Commit adef658 "spi/omap_mcspi: catch xfers of non-multiple SPI word size" broke the transmission of last word in cases where access is multiple of word size and word size is 16 or 32 bits. Fix this by replacing the test "c > (word_len>>3)" in do-while loops with "c >= 'pointer increment size'". This ensures that the last word is transmitted in above case and still allow to break the loop and prevent variable c underflow in cases where word size != 'pointer increment size'. Signed-off-by: Jarkko Nikula Tested-by: Sourav Poddar Acked-by: Michael Jones Signed-off-by: Grant Likely

Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6

2011-03-18T17:56:02+00:00

* 'spi/next' of git://git.secretlab.ca/git/linux-2.6: (34 commits) spi/dw_spi: move dw_spi.h into drivers/spi spi/dw_spi: Fix missing header gpio/langwell: Clear edge bit before handling gpio/langwell: Simplify demux loop gpio/langwell: Convert irq name space gpio/langwell: Fix broken irq_eoi change. gpio; Make Intel chipset gpio drivers depend on x86 gpio/cs5535-gpio: Fix section mismatch spi/rtc-{ds1390,ds3234,m41t94}: Use spi_get_drvdata() for SPI devices spi/davinci: Support DMA transfers larger than 65535 words spi/davinci: Use correct length parameter to dma_map_single calls gpio: Use __devexit at necessary places gpio: add MODULE_DEVICE_TABLE to pch_gpio and ml_ioh_gpio gpio/mcp23s08: support mcp23s17 variant of_mmc_spi: add card detect irq support spi/omap_mcspi: catch xfers of non-multiple SPI word size spi/omap_mcspi: Off-by-one error in finding the right divisor gpio/pca953x: Fix wrong pointer type spi/pl022: rid dangling labels spi: add support for SuperH SPI ...

spi/omap_mcspi: catch xfers of non-multiple SPI word size

2011-03-05T05:23:26+00:00

If an SPI access was not a multiple of the SPI word size, the while() loop would spin and the rx/tx ptrs would be incremented indefinitely. Signed-off-by: Michael Jones Signed-off-by: Grant Likely

spi/omap_mcspi: Off-by-one error in finding the right divisor

2011-02-24T19:44:37+00:00

Off-by-one error, gave erroneous divisor value 16 if speed_hz is over zero but less than OMAP2_MCSPI_MAX_FREQ / (1 << 15), that is, [1..1463]. Also few overly complex bit shifts in divisor fixed. Also one dev_dgb line fixed, which indicated max speed exceeding transfer speed. Introducing a new function omap2_mcspi_calc_divisor() for getting the right divisor in omap2_mcspi_setup_transfer(). Signed-off-by: Phil Carmody Signed-off-by: Hannu Heikkinen Signed-off-by: Grant Likely

OMAP: runtime: McSPI driver runtime conversion

2011-02-17T17:54:13+00:00

McSPI runtime conversion. Changes involves: 1) remove clock framework apis to use runtime framework apis. 2) context restore from runtime resume which is a callback for get_sync. 3) Remove SYSCONFIG(sysc) register handling (a) Remove context save and restore of sysc reg and remove soft reset done from sysc reg as this will be done with hwmod framework. (b) Also cleanup sysc reg bit macros. 4) Rename the omap2_mcspi_reset function to omap2_mcspi_master_setup function as with hwmod changes soft reset will be done in hwmod framework itself and use the return value from clock enable function to return for failure scenarios. Signed-off-by: Charulatha V Signed-off-by: Govindraj.R Acked-by: Grant Likely Reviewed-by: Partha Basak Reviewed-by: Kevin Hilman Signed-off-by: Tony Lindgren

OMAP: devices: Modify McSPI device to adapt to hwmod framework

2011-02-17T17:53:31+00:00

Cleans up all base address definitions for omap_mcspi and adapts the device registration and driver to hwmod framework. Changes involves: 1) Removing all base address macro defines. 2) Using omap-device layer to register device and utilizing data from hwmod data file for base address, dma channel number, Irq_number, device attribute(number of chipselect). 3) Appending base address with pdata reg_offset for omap4 boards. For omap4 all regs used in driver deviate with reg_offset_macros defined with an value of 0x100. So pass this offset through pdata and append the same to base address retrieved from hwmod data file and we are not mapping *_HL_* regs which are not used in driver. Signed-off-by: Charulatha V Signed-off-by: Govindraj.R Acked-by: Grant Likely Reviewed-by: Partha Basak Reviewed-by: Kevin Hilman Signed-off-by: Tony Lindgren

omap: Start using CONFIG_SOC_OMAP

2011-01-28T00:39:40+00:00

We want to have just CONFIG_ARCH_OMAP2, 3 and 4. The rest are nowadays just subcategories of these. Search and replace the following: ARCH_OMAP2420 SOC_OMAP2420 ARCH_OMAP2430 SOC_OMAP2430 ARCH_OMAP3430 SOC_OMAP3430 No functional changes. Signed-off-by: Tony Lindgren Signed-off-by: Thomas Weber Acked-by: Sourav Poddar

Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6

2011-01-08T01:08:46+00:00

* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (77 commits) spi/omap: Fix DMA API usage in OMAP MCSPI driver spi/imx: correct the test on platform_get_irq() return value spi/topcliff: Typo fix threhold to threshold spi/dw_spi Typo change diable to disable. spi/fsl_espi: change the read behaviour of the SPIRF spi/mpc52xx-psc-spi: move probe/remove to proper sections spi/dw_spi: add DMA support spi/dw_spi: change to EXPORT_SYMBOL_GPL for exported APIs spi/dw_spi: Fix too short timeout in spi polling loop spi/pl022: convert running variable spi/pl022: convert busy flag to a bool spi/pl022: pass the returned sglen to the DMA engine spi/pl022: map the buffers on the DMA engine spi/topcliff_pch: Fix data transfer issue spi/imx: remove autodetection spi/pxa2xx: pass of_node to spi device and set a parent device spi/pxa2xx: Modify RX-Tresh instead of busy-loop for the remaining RX bytes. spi/pxa2xx: Add chipselect support for Sodaville spi/pxa2xx: Consider CE4100's FIFO depth spi/pxa2xx: Add CE4100 support ...