diff mbox series

[v2] mmc: fsl_esdhc_imx: add wait_dat0() support

Message ID 1604559433-4906-1-git-send-email-haibo.chen@nxp.com
State Accepted
Commit b5874b552ffa09bc1dc5dec6b5dd376c62dab45d
Delegated to: Stefano Babic
Headers show
Series [v2] mmc: fsl_esdhc_imx: add wait_dat0() support | expand

Commit Message

Bough Chen Nov. 5, 2020, 6:57 a.m. UTC
From: Haibo Chen <haibo.chen@nxp.com>

Add wait_dat0() support, upper layer will use this callback.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
---
 drivers/mmc/fsl_esdhc_imx.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Comments

Jaehoon Chung Nov. 5, 2020, 7:53 a.m. UTC | #1
Dear Haibo,

On 11/5/20 3:57 PM, haibo.chen@nxp.com wrote:
> From: Haibo Chen <haibo.chen@nxp.com>
> 
> Add wait_dat0() support, upper layer will use this callback.
> 
> Signed-off-by: Haibo Chen <haibo.chen@nxp.com>

Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

Best Regards,
Jaehoon Chung

> ---
>  drivers/mmc/fsl_esdhc_imx.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c
> index 22040c67a8..29592d1f2c 100644
> --- a/drivers/mmc/fsl_esdhc_imx.c
> +++ b/drivers/mmc/fsl_esdhc_imx.c
> @@ -1646,6 +1646,20 @@ static int fsl_esdhc_set_enhanced_strobe(struct udevice *dev)
>  }
>  #endif
>  
> +static int fsl_esdhc_wait_dat0(struct udevice *dev, int state,
> +				int timeout_us)
> +{
> +	int ret;
> +	u32 tmp;
> +	struct fsl_esdhc_priv *priv = dev_get_priv(dev);
> +	struct fsl_esdhc *regs = priv->esdhc_regs;
> +
> +	ret = readx_poll_timeout(esdhc_read32, &regs->prsstat, tmp,
> +				!!(tmp & PRSSTAT_DAT0) == !!state,
> +				timeout_us);
> +	return ret;
> +}
> +
>  static const struct dm_mmc_ops fsl_esdhc_ops = {
>  	.get_cd		= fsl_esdhc_get_cd,
>  	.send_cmd	= fsl_esdhc_send_cmd,
> @@ -1656,6 +1670,7 @@ static const struct dm_mmc_ops fsl_esdhc_ops = {
>  #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
>  	.set_enhanced_strobe = fsl_esdhc_set_enhanced_strobe,
>  #endif
> +	.wait_dat0 = fsl_esdhc_wait_dat0,
>  };
>  #endif
>  
>
Stefano Babic Dec. 8, 2020, 7:59 a.m. UTC | #2
> From: Haibo Chen <haibo.chen@nxp.com>
> Add wait_dat0() support, upper layer will use this callback.
> Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic
diff mbox series

Patch

diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c
index 22040c67a8..29592d1f2c 100644
--- a/drivers/mmc/fsl_esdhc_imx.c
+++ b/drivers/mmc/fsl_esdhc_imx.c
@@ -1646,6 +1646,20 @@  static int fsl_esdhc_set_enhanced_strobe(struct udevice *dev)
 }
 #endif
 
+static int fsl_esdhc_wait_dat0(struct udevice *dev, int state,
+				int timeout_us)
+{
+	int ret;
+	u32 tmp;
+	struct fsl_esdhc_priv *priv = dev_get_priv(dev);
+	struct fsl_esdhc *regs = priv->esdhc_regs;
+
+	ret = readx_poll_timeout(esdhc_read32, &regs->prsstat, tmp,
+				!!(tmp & PRSSTAT_DAT0) == !!state,
+				timeout_us);
+	return ret;
+}
+
 static const struct dm_mmc_ops fsl_esdhc_ops = {
 	.get_cd		= fsl_esdhc_get_cd,
 	.send_cmd	= fsl_esdhc_send_cmd,
@@ -1656,6 +1670,7 @@  static const struct dm_mmc_ops fsl_esdhc_ops = {
 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
 	.set_enhanced_strobe = fsl_esdhc_set_enhanced_strobe,
 #endif
+	.wait_dat0 = fsl_esdhc_wait_dat0,
 };
 #endif