[U-Boot] [PATCH 4/9] A driver for the S6E63D6 SPI display controller from Samsung

[Wolfgang Denk]

Dear Guennadi Liakhovetski,

In message <Pine.LNX.4.64.0902051131450.5553 at axis700.grange> you wrote:
> On Wed, 4 Feb 2009, Jean-Christophe PLAGNIOL-VILLARD wrote:
> 
> > On 17:59 Wed 04 Feb     , Guennadi Liakhovetski wrote:
> > > +
> > > +/*
> > > + * Each transfer is performed as:
> > > + * 1. chip-select active
> > > + * 2. send 8-bit start code
> > > + * 3. send 16-bit data
> > > + * 4. chip-select inactive
> > > + */
> > > +static int send_word(struct spi_slave *spi, u8 rs, u16 data)
> > > +{
> > > +	u32 buf8 = 0x70 | ID | (rs & 2);
> > why?
> 
> That's how the start byte looks like:
> 
> 01110<ID><RS><R/W>
> 
> rs is 0 for index or 1 for data, and R/W is 0 for write.

Good. Now add this as comment, please?

Best regards,

Wolfgang Denk

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