From: Kuldeep Singh <kuldeep.singh@nxp.com>
Date: Mon, 27 Apr 2020 07:08:51 +0000 (+0530)
Subject: spi: nxp-fspi: Use new readl_poll_sleep_timeout API
X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-favicon.png?a=commitdiff_plain;h=28029c768c4761d10815f94cafbbdc86272f1d8d;p=u-boot.git

spi: nxp-fspi: Use new readl_poll_sleep_timeout API

Board gets reset when performing burst read/write operations. On the
other hand, no such behaviour is observed on small size operations.

In Linux, readl_poll_timeout API already adds delay of 1us which is
further skipped in U-boot. Hence, use new "readl_poll_sleep_timeout" API
which adds delay alongwith timeout functionality.

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
---

diff --git a/drivers/spi/nxp_fspi.c b/drivers/spi/nxp_fspi.c
index 0e6c7be785..22a5c0e3c7 100644
--- a/drivers/spi/nxp_fspi.c
+++ b/drivers/spi/nxp_fspi.c
@@ -421,7 +421,7 @@ static bool nxp_fspi_supports_op(struct spi_slave *slave,
 	return true;
 }
 
-/* Instead of busy looping invoke readl_poll_timeout functionality. */
+/* Instead of busy looping invoke readl_poll_sleep_timeout functionality. */
 static int fspi_readl_poll_tout(struct nxp_fspi *f, void __iomem *base,
 				u32 mask, u32 delay_us,
 				u32 timeout_us, bool c)
@@ -432,11 +432,11 @@ static int fspi_readl_poll_tout(struct nxp_fspi *f, void __iomem *base,
 		mask = (u32)cpu_to_be32(mask);
 
 	if (c)
-		return readl_poll_timeout(base, reg, (reg & mask),
-					  timeout_us);
+		return readl_poll_sleep_timeout(base, reg, (reg & mask),
+						delay_us, timeout_us);
 	else
-		return readl_poll_timeout(base, reg, !(reg & mask),
-					  timeout_us);
+		return readl_poll_sleep_timeout(base, reg, !(reg & mask),
+						delay_us, timeout_us);
 }
 
 /*