[U-Boot] [PATCH v4 05/29] dm: spi: Add a uclass for SPI

[Simon Glass]

On 13 October 2014 23:41, Simon Glass <sjg at chromium.org> wrote:
> Add a uclass which provides access to SPI buses and includes operations
> required by SPI.
>
> For a time driver model will need to co-exist with the legacy SPI interface
> so some parts of the header file are changed depending on which is in use.
> The exports are adjusted also since some functions are not available with
> driver model.
>
> Boards must define CONFIG_DM_SPI to use driver model for SPI.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>
> (Discussed some follow-up comments which will address in future add-ons)
>
> ---
>
> Changes in v4: None
> Changes in v3:
> - Add a cs_info() method to the driver model SPI API
> - Add a uclass for a generic SPI device (for use with the 'sspi' command)
> - Add missing comments to spi.h
> - Correct typo where 'slave' should say 'bus'
> - Fix two comment typos
> - Put the cs member back into spi_slave
> - Use an explicit chip select value instead of reusing device sequence number
>
> Changes in v2:
> - Add missing comments for struct spi_slave
> - Fix code nits from Daniel Schwierzeck
> - Use 'bus' instead of 'dev' to make the API clearer
>
>  common/exports.c         |   4 +-
>  drivers/spi/Makefile     |   4 +
>  drivers/spi/spi-uclass.c | 390 +++++++++++++++++++++++++++++++++++++++++++++++
>  include/dm/uclass-id.h   |   2 +
>  include/spi.h            | 254 +++++++++++++++++++++++++++++-
>  5 files changed, 650 insertions(+), 4 deletions(-)
>  create mode 100644 drivers/spi/spi-uclass.c
>

Applied to u-boot-dm/master.