Hi Niklas,
On Mon, Aug 6, 2018 at 9:43 PM Niklas Söderlund
<niklas.soderlund+renesas@xxxxxxxxxxxx> wrote:
> Latest datasheet makes it clear that not all ES revisions of the H3 and
> M3-W have the 4-tap HS400 mode quirk, currently the quirk is set
> unconditionally for these two SoCs. Prepare to handle the quirk based on
> SoC revision instead of compatibility value by using soc_device_match()
> and set the TMIO_MMC_HAVE_4TAP_HS400 flag explicitly.
Thanks for your patch!
> The reason for adding a new quirks struct instead of just a flag is that
> looking ahead it seems more quirks needs to be handled in a SoC revision
> basis.
Do you expect to add a lot? If yes...
> --- a/drivers/mmc/host/renesas_sdhi_core.c
> +++ b/drivers/mmc/host/renesas_sdhi_core.c
> @@ -569,6 +588,10 @@ int renesas_sdhi_probe(struct platform_device *pdev,
>
> of_data = of_device_get_match_data(&pdev->dev);
>
> + attr = soc_device_match(sdhi_quirks_match);
> + if (attr)
> + quirks = attr->data;
... you may consider just storing a plain struct renesas_sdhi_of_data in
the sdhi_quirks_match[] table.
> +
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> if (!res)
> return -EINVAL;
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
