lkml.org 
[lkml]   [2022]   [Feb]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v1 2/2] spi: fsl-spi: Implement trailing clock mode
On Sun, Feb 27, 2022 at 11:00:35AM +0100, Christophe Leroy wrote:

> + if (!status && spi->mode & SPI_TRAILING) {
> + struct spi_transfer t = {
> + .len = 1,
> + .tx_buf = "",
> + .bits_per_word = 4
> + };
> +
> + status = fsl_spi_setup_transfer(spi, &t);
> + if (!status)
> + status = fsl_spi_bufs(spi, &t, 0);
> + }
> + m->status = status;

This seems to be begging for a generic implementation in the core rather
than being driver specific - drivers would for the most part need
updating to advertise less than 8 bit per word transfers but the basic
operation isn't really device specific and it pretty much fits with the
existing interfaces.
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2022-02-28 14:21    [W:0.042 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site