[PATCH v4 1/3] spi: fsl-dspi: use common proptery 'spi-cs-setup(hold)-delay-ns'

[Vladimir Oltean]

On Mon, Jun 24, 2024 at 02:55:27PM -0400, Frank Li wrote:
> Use SPI common DT binding properties 'spi-cs-setup-delay-ns' and
> 'spi-cs-hold-delay-ns'. If these properties do not exist, fall back to
> legacy 'fsl,spi-cs-sck-delay' and 'fsl,spi-sck-cs-delay'.
> 
> Signed-off-by: Frank Li <Frank.Li at nxp.com>
> ---
> Change from v3 to v4
> - check spi_delay_to_ns() return value, which may return negative value as
> error code. It will be very big value when cast to u32.
> ---

Reviewed-by: Vladimir Oltean <olteanv at gmail.com>