Hi Simon,
On Tue, May 24, 2016 at 4:43 AM, Simon Horman
<horms+renesas@xxxxxxxxxxxx> wrote:
> --- a/drivers/mmc/host/sh_mobile_sdhi.c
> +++ b/drivers/mmc/host/sh_mobile_sdhi.c
> @@ -403,6 +580,30 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
> if (ret < 0)
> goto efree;
>
> + if (host->mmc->caps & MMC_CAP_UHS_SDR104)
> + host->mmc->caps |= MMC_CAP_HW_RESET;
> +
> + if (of_id && of_id->data) {
> + const struct sh_mobile_sdhi_of_data *of_data = of_id->data;
> + const struct sh_mobile_sdhi_scc *taps = of_data->taps;
> + bool hit = false;
> +
> + for (i = 0; i < of_data->taps_num; i++) {
> + if (taps[i].clk_rate == 0 ||
> + taps[i].clk_rate == host->mmc->f_max) {
> + host->scc_tappos = taps->tap;
> + hit = true;
> + break;
> + }
> + }
> +
> + if (!hit)
> + dev_warn(&host->pdev->dev, "Unknown clock rate for SDR104 and HS200\n");
This warning triggers on sh7a0/kzm9g, r8a73a4/ape6evm, and
r8a7740/armadillo.
Perhaps the tap code should check if MMC_CAP_UHS_SDR104 is
enabled?
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
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