diff mbox series

mmc: fsl_esdhc: read register once for card inserted status

Message ID 20200514024539.16755-1-yangbo.lu@nxp.com
State Superseded
Headers show
Series mmc: fsl_esdhc: read register once for card inserted status | expand

Commit Message

Y.b. Lu May 14, 2020, 2:45 a.m. UTC 
No need to poll register for card inserted status.

Signed-off-by: Yangbo Lu <yangbo.lu at nxp.com>
---
 drivers/mmc/fsl_esdhc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index e64ea76..7e8993f 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -627,16 +627,15 @@  static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
 static int esdhc_getcd_common(struct fsl_esdhc_priv *priv)
 {
 	struct fsl_esdhc *regs = priv->esdhc_regs;
-	int timeout = 1000;
 
 #ifdef CONFIG_ESDHC_DETECT_QUIRK
 	if (CONFIG_ESDHC_DETECT_QUIRK)
 		return 1;
 #endif
-	while (!(esdhc_read32(&regs->prsstat) & PRSSTAT_CINS) && --timeout)
-		udelay(1000);
+	if (esdhc_read32(&regs->prsstat) & PRSSTAT_CINS)
+		return 1;
 
-	return timeout > 0;
+	return 0;
 }
 
 static void fsl_esdhc_get_cfg_common(struct fsl_esdhc_priv *priv,