Re: [PATCH 0/2] Fix displays requiring 9 bit transfers on RPi

[Brüns, Stefan <Stefan.Bruens@xxxxxxxxxxxxxx>]

Hi,

any comments on these two patches, please?

Kind regards,

Stefan


On Tuesday, August 11, 2015 09:27:49 you wrote:
> Some displays need 9 bit long SPI transfers (Command/Data flag plus
> 8 bit data). FBTFT has emulation code in case the controller only
> supports 8 bit transfers, but this is only used if the controller
> setup function report an error if bits_per_word is set to 9.
> 
> Report unsupported bits_per_word settings in spi_setup Currently the
> SPI core only checks bits_per_word on transfer, but not on setup.
> 
> Replace invocations of master->setup(...) with spi_setup(...).
> 
> Tested on RPi B with an Ilitek9341 based TFT display in 9 bit mode.
> 
> Stefan Brüns (2):
>   spi: check bits_per_word in spi_setup
>   staging/fbtft: use spi_setup instead of direct call to master->setup
> 
>  drivers/spi/spi.c                    | 27 +++++++++++++++++++--------
>  drivers/staging/fbtft/fb_watterott.c |  4 ++--
>  drivers/staging/fbtft/fbtft-core.c   |  4 ++--
>  drivers/staging/fbtft/flexfb.c       |  4 ++--
>  4 files changed, 25 insertions(+), 14 deletions(-)

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