diff options
| author | Yangbo Lu <yangbo.lu@nxp.com> | 2020-05-19 11:06:43 +0800 |
|---|---|---|
| committer | Peng Fan <peng.fan@nxp.com> | 2020-06-15 09:45:22 +0800 |
| commit | 9abf648436b49553e6cb4a7f03a021720616d75b (patch) | |
| tree | 876a601cb5c04ae6da372e467a3afb7dd5b86f9c /drivers | |
| parent | 9d886fd6a0888f121cd280d11434812a386045a2 (diff) | |
mmc: fsl_esdhc: read register once for card inserted status
No need to poll register for card inserted status.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/fsl_esdhc.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index d5d955846c..704407981b 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc - * Copyright 2019 NXP Semiconductors + * Copyright 2019-2020 NXP * Andy Fleming * * Based vaguely on the pxa mmc code: @@ -630,16 +630,15 @@ 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(®s->prsstat) & PRSSTAT_CINS) && --timeout) - udelay(1000); + if (esdhc_read32(®s->prsstat) & PRSSTAT_CINS) + return 1; - return timeout > 0; + return 0; } static void fsl_esdhc_get_cfg_common(struct fsl_esdhc_priv *priv, |