diff mbox

[v3,5/7] mmc: sdhci-of-esdhc: add delay between tuning cycles

Message ID 1490600982-5410-6-git-send-email-yangbo.lu@nxp.com (mailing list archive)
State New, archived
Headers show

Commit Message

Yangbo Lu March 27, 2017, 7:49 a.m. UTC 
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@nxp.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(+)

Comments

Adrian Hunter April 10, 2017, 12:39 p.m. UTC | #1 
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@nxp.com>

Acked-by: Adrian Hunter <adrian.hunter@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);
>  
>
diff mbox

Patch

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);