[v3, 5/7] mmc: sdhci-of-esdhc: add delay between tuning cycles
Adrian Hunter
adrian.hunter at intel.com
Mon Apr 10 08:39:43 EDT 2017
On 27/03/17 10:49, Yangbo Lu wrote:
> It's observed that eSDHC needed delay between tuning cycles for
> HS200 successful tuning. This patch is to set 1ms delay for that.
>
> Signed-off-by: Yangbo Lu <yangbo.lu at nxp.com>
Acked-by: Adrian Hunter <adrian.hunter at intel.com>
> ---
> Changes for v2:
> - None
> Changes for v3:
> - Used a host member for tuning delay instead of a quirk.
> ---
> drivers/mmc/host/sdhci-of-esdhc.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
> index 8c8e147..0754ef4 100644
> --- a/drivers/mmc/host/sdhci-of-esdhc.c
> +++ b/drivers/mmc/host/sdhci-of-esdhc.c
> @@ -807,6 +807,7 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
> host->mmc_host_ops.start_signal_voltage_switch =
> esdhc_signal_voltage_switch;
> host->mmc_host_ops.execute_tuning = esdhc_execute_tuning;
> + host->tuning_delay = 1;
>
> esdhc_init(pdev, host);
>
>
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