Re: PATCH[V2 1/3]: Update Platform files for SPI

[Tony Lindgren <tony@atomide.com>]

* Hemanth V <hemanthv@ti.com> [100203 02:19]:
> From ee48142ddc43129a21676dbb56a83e3e7d8063de Mon Sep 17 00:00:00 2001
> From: Hemanth V <hemanthv@ti.com>
> Date: Fri, 27 Nov 2009 14:22:30 +0530
> Subject: [PATCH] Update platform files
> 
> This patch updates platform files for
> fifo, slave support
> 
> Signed-off-by: Hemanth V <hemanthv@ti.com>

This should get merged via the spi-devel list with the other patches.

Acked-by: Tony Lindgren <tony@atomide.com>


> ---
>  arch/arm/mach-omap2/devices.c           |    5 +++++
>  arch/arm/plat-omap/include/plat/mcspi.h |   29 ++++++++++++++++++++++++++++- 2
> files changed, 33 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
> index 733d3dc..79b5396 100644
> --- a/arch/arm/mach-omap2/devices.c
> +++ b/arch/arm/mach-omap2/devices.c
> @@ -282,6 +282,7 @@ static inline void omap_init_sti(void) {}
> 
>  static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
>  	.num_cs		= 4,
> +	.force_cs_mode	= 1,
>  };
> 
>  static struct resource omap2_mcspi1_resources[] = {
> @@ -304,6 +305,10 @@ static struct platform_device omap2_mcspi1 = {
> 
>  static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
>  	.num_cs		= 2,
> +	.mode		= OMAP2_MCSPI_MASTER,
> +	.dma_mode	= 0,
> +	.force_cs_mode	= 0,
> +	.fifo_depth	= 0,
>  };
> 
>  static struct resource omap2_mcspi2_resources[] = {
> diff --git a/arch/arm/plat-omap/include/plat/mcspi.h
> b/arch/arm/plat-omap/include/plat/mcspi.h
> index 1254e49..ffda0a1 100644
> --- a/arch/arm/plat-omap/include/plat/mcspi.h
> +++ b/arch/arm/plat-omap/include/plat/mcspi.h
> @@ -1,8 +1,35 @@
>  #ifndef _OMAP2_MCSPI_H
>  #define _OMAP2_MCSPI_H
> 
> +#define OMAP2_MCSPI_MASTER		0
> +#define OMAP2_MCSPI_SLAVE		1
> +
> +/**
> + * struct omap2_mcspi_platform_config - McSPI controller configuration + *
> @num_cs: Number of chip selects or channels supported
> + * @mode: SPI is master or slave
> + * @dma_mode: Use only DMA for data transfers
> + * @force_cs_mode: Use force chip select mode or auto chip select mode + *
> @fifo_depth: FIFO depth in bytes, max value 64
> + *
> + * @dma_mode when set to 1 uses only dma for data transfers
> + * else the default behaviour is to use PIO mode for transfer
> + * size of 8 bytes or less. This mode is useful when mcspi
> + * is configured as slave
> + *
> + * @force_cs_mode when set to 1 allows continuous transfer of multiple + * spi
> words without toggling the chip select line.
> + *
> + * @fifo_depth when set to non zero values enables FIFO. fifo_depth + * should
> be set as a multiple of buffer size used for read/write. + */
> +
>  struct omap2_mcspi_platform_config {
> -	unsigned short	num_cs;
> +	u8	num_cs;
> +	u8	mode;
> +	u8	dma_mode;
> +	u8	force_cs_mode;
> +	unsigned short fifo_depth;
>  };
> 
>  struct omap2_mcspi_device_config {
> -- 
> 1.5.6.3
> 
> 
> 
> 
> 
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