[PATCH v7 00/14] spi/spi-atmel: add dmaengine support for atmel spi controller and to test the device tree support

[Nicolas Ferre]

On 03/19/2013 08:41 AM, Wenyou Yang :
> Hi All, 
> 
> This set of patches is to add dmaengine support for atmel spi and to test device tree support.
> 
> The work is based on Nicolas and Richard's work.
> 
> Because the dma engine device tree support isn't available now, to at91sam9x5ek and at91sam9n12ek
> with dma support, it doesn't work on the dmaengine mode, only on PIO mode so far.
> 
> It has been tested as below:
>  1./tested on v3.9-rc3, by using mtd utils, "mount", "umount" and "cp" commands.
>  2./tested on "spi/next" git tree after changing master->num_chipselect which fixed in v3.9-rc1.
>  3./tested by using Documentation/spi/spidev_test.c on "/dev/spidev".
>  4./tested on on at91sam9x5ek, at91sam9m10g45ek, at91sam9263ek and at91sam9g20ek boards.
> 
> It is based on v3.9-rc3 + Joachim Eastwood's spi/atmel: fix speed_hz check in atmel_spi_transfer().
> 
> Changelog:
> v7:
>      1./ remove patch: fix probing failure after xfer->speed_hz set.
>      2./ remove patch: add pinctrl support for atmel spi.


It it makes sense, you can add my:

Acked-by: Nicolas Ferre <nicolas.ferre at atmel.com>

on patches that I did not acknowledged yet.

Grant,

Can we move forward with this patch series so that we can build on solid
bases for future developments on atmel SPI.

Thanks, best regards.

> v6:
>      1./ remove: fix master->num_chipselect wrongly set patch which isn't a issue in v3.9-rc1.
>      2./ fix probing failure after xfer->speed_hz set.
> 
> v5:
>      1./ add pinctrl patches.
>      2./ detect capabilities by reading spi version register to replace multiple compatiles.
>      3./ change the "cs-gpios" property of spi node.
>      4./ rebase on v3.8.
> 
> v4:
>      1./ Take Joe Perches's adivce, rewrite atmel_spi_is_v2(struct atmel_spi *as) 
>          and atmel_spi_use_dma(struct atmel_spi *as),
> 	 and remove atmel_spi_use_pdc(struct atmel_spi *as).
>      2./ Rebase on v3.8-rc3.
> 
> V3:
>      1./ Rebase on v3.8-rc2.
>      2./ Remove some Jean-Christophe's patches which has been applied on v3.8-rc2.
>      3./ Remove spi property "cs-gpios" from the SoC dtsi files to the board dts files
>          to avoid some useless pin conflicts.
> 
> v2: 
>      1./ Remove the patch :PATCH]mtd: m25p80: change the m25p80_read to reading page to page
> 	 which purpose to fix the BUG: when run "flashcp /bin/busybox /dev/mtdX" in the at91sam9g25ek
> 	 with DMA mode, it arises a OOPS. Now fix it in this patch:
> 	    [PATHC] spi/atmel_spi: add dmaengine support changing to fix the [BUG].
>      2./ Remove two patches:
>    	    which purpose to read dts property to select SPI IP version and DMA mode
> 	    Now they will be gat from device tree different compatile.
>      3./ Fix DMA: when enable both spi0 AND spi1, the spi0 doesn't work BUG.
>      4./ Rebase v3.7-rc8.
> 
> Best Regards,
> Wenyou Yang.
> 
> 
> Nicolas Ferre (5):
>   spi/spi-atmel: add physical base address
>   spi/spi-atmel: call unmapping on transfers buffers
>   spi/spi-atmel: status information passed through controller data
>   spi/spi-atmel: add flag to controller data for lock operations
>   spi/spi-atmel: add dmaengine support
> 
> Richard Genoud (6):
>   spi/spi-atmel: fix spi-atmel driver to adapt to slave_config changes
>   spi/spi-atmel: correct 16 bits transfers using PIO
>   spi/spi-atmel: correct 16 bits transfers with DMA
>   ARM: at91: add clocks for spi dt entries
>   ARM: dts: add spi nodes for atmel SoC
>   ARM: dts: add spi nodes for the atmel boards
> 
> Wenyou Yang (3):
>   spi/spi-atmel: detect the capabilities of SPI core by reading the
>     VERSION register.
>   spi/spi-atmel: add support transfer on CS1,2,3, not only on CS0
>   ARM: dts: add pinctrl property for spi node for atmel SoC
> 
>  arch/arm/boot/dts/at91sam9260.dtsi          |   40 ++
>  arch/arm/boot/dts/at91sam9263.dtsi          |   40 ++
>  arch/arm/boot/dts/at91sam9263ek.dts         |   10 +
>  arch/arm/boot/dts/at91sam9g20ek_common.dtsi |   10 +
>  arch/arm/boot/dts/at91sam9g45.dtsi          |   40 ++
>  arch/arm/boot/dts/at91sam9m10g45ek.dts      |   10 +
>  arch/arm/boot/dts/at91sam9n12.dtsi          |   40 ++
>  arch/arm/boot/dts/at91sam9n12ek.dts         |   10 +
>  arch/arm/boot/dts/at91sam9x5.dtsi           |   40 ++
>  arch/arm/boot/dts/at91sam9x5ek.dtsi         |   10 +
>  arch/arm/mach-at91/at91sam9260.c            |    2 +
>  arch/arm/mach-at91/at91sam9g45.c            |    2 +
>  arch/arm/mach-at91/at91sam9n12.c            |    2 +
>  arch/arm/mach-at91/at91sam9x5.c             |    2 +
>  drivers/spi/spi-atmel.c                     |  753 ++++++++++++++++++++++++---
>  15 files changed, 945 insertions(+), 66 deletions(-)
> 


-- 
Nicolas Ferre