On 12 September 2016 at 16:15, Chris Brandt <chris.brandt@xxxxxxxxxxx> wrote:
> In moving platforms from board files to DT, there still needs to be a way
> to set the ocr_mask setting for the tmio driver during probe. Without this
> setting, the probe will fail because the supported voltages are not known.
Regarding the ocr_mask; How do these SoCs provides the power to the mmc/sd card?
Do note, I am *not* talking about the I/O voltage but the core power
to the card.
The reason for raising the question is that we have infrastructures in
the mmc core which can create the ocr_mask, by parsing a regulator's
voltage range. This is the recommended method to use, instead of using
hard coded ocr mask values.
Kind regards
Uffe
>
> This patch will also traditional platform registration platforms to
> migrate to DT.
>
> Signed-off-by: Chris Brandt <chris.brandt@xxxxxxxxxxx>
> ---
> drivers/mmc/host/sh_mobile_sdhi.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
> index 5334f24..b033500 100644
> --- a/drivers/mmc/host/sh_mobile_sdhi.c
> +++ b/drivers/mmc/host/sh_mobile_sdhi.c
> @@ -59,6 +59,7 @@ enum tmio_mmc_dmac_type {
>
> struct sh_mobile_sdhi_of_data {
> unsigned long tmio_flags;
> + u32 tmio_ocr_mask;
> unsigned long capabilities;
> unsigned long capabilities2;
> enum dma_slave_buswidth dma_buswidth;
> @@ -630,6 +631,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
> const struct sh_mobile_sdhi_of_data *of_data = of_id->data;
>
> mmc_data->flags |= of_data->tmio_flags;
> + mmc_data->ocr_mask = of_data->tmio_ocr_mask;
> mmc_data->capabilities |= of_data->capabilities;
> mmc_data->capabilities2 |= of_data->capabilities2;
> mmc_data->dma_rx_offset = of_data->dma_rx_offset;
> --
> 2.9.2
>
>
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