[V5,1/3] mmc: sdhci: Fix sdhci_do_enable_v4_mode
diff mbox series

Message ID 1545355509-6914-2-git-send-email-skomatineni@nvidia.com
State New
Headers show
Series
  • HW Command Queue support for Tegra SDMMC
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Commit Message

Sowjanya Komatineni Dec. 21, 2018, 1:25 a.m. UTC
V4_MODE is Bit-15 of SDHCI_HOST_CONTROL2 register.
Need to perform word access to this register.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
 drivers/mmc/host/sdhci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Adrian Hunter Dec. 27, 2018, 8:13 a.m. UTC | #1
On 21/12/18 3:25 AM, Sowjanya Komatineni wrote:
> V4_MODE is Bit-15 of SDHCI_HOST_CONTROL2 register.
> Need to perform word access to this register.
> 
> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>

This patch has already been applied.

> ---
>  drivers/mmc/host/sdhci.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index 99bdae53fa2e..fde984d10619 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -127,12 +127,12 @@ static void sdhci_do_enable_v4_mode(struct sdhci_host *host)
>  {
>  	u16 ctrl2;
>  
> -	ctrl2 = sdhci_readb(host, SDHCI_HOST_CONTROL2);
> +	ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
>  	if (ctrl2 & SDHCI_CTRL_V4_MODE)
>  		return;
>  
>  	ctrl2 |= SDHCI_CTRL_V4_MODE;
> -	sdhci_writeb(host, ctrl2, SDHCI_HOST_CONTROL);
> +	sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2);
>  }
>  
>  /*
>

Patch
diff mbox series

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 99bdae53fa2e..fde984d10619 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -127,12 +127,12 @@  static void sdhci_do_enable_v4_mode(struct sdhci_host *host)
 {
 	u16 ctrl2;
 
-	ctrl2 = sdhci_readb(host, SDHCI_HOST_CONTROL2);
+	ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
 	if (ctrl2 & SDHCI_CTRL_V4_MODE)
 		return;
 
 	ctrl2 |= SDHCI_CTRL_V4_MODE;
-	sdhci_writeb(host, ctrl2, SDHCI_HOST_CONTROL);
+	sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2);
 }
 
 /*