Re: [PATCH v1 1/1] mfd: intel-lpss: Provide an SSP type to the SPI driver

From: Andy Shevchenko
Date: Wed Jul 13 2022 - 06:57:45 EST


On Wed, Jul 13, 2022 at 09:10:06AM +0100, Lee Jones wrote:
> On Sun, 03 Jul 2022, Andy Shevchenko wrote:

> > +static const struct property_entry spt_spi_properties[] = {
> > + PROPERTY_ENTRY_U32("intel,spi-pxa2xx-type", LPSS_SPT_SSP),
> > + { }
> > +};
> > +
> > +static const struct software_node spt_spi_node = {
> > + .properties = spt_spi_properties,
> > +};
> > +
> > static const struct intel_lpss_platform_info spt_info = {
> > .clk_rate = 120000000,
> > + .swnode = &spt_spi_node,
> > };
>
> IMHO, this is a rubbish interface.
>
> The amount of 10-line changes required to store a 32-bit value is
> depressing. Is there not a reduced interface for storing small pieces
> of data that doesn't require arrays of structs?

The part of it that makes it longer because of differentiating the hardware,
but see the difference here:

In this change:
95 insertions(+), 46 deletions(-)

In the follow up SPI driver cleaning (not yet submitted):
14 insertions(+), 121 deletions(-)


--
With Best Regards,
Andy Shevchenko